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Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Browse Source 
Pull mount flag updates from Al Viro:
 "Another chunk of fmount preparations from dhowells; only trivial
  conflicts for that part. It separates MS_... bits (very grotty
  mount(2) ABI) from the struct super_block ->s_flags (kernel-internal,
  only a small subset of MS_... stuff).

  This does *not* convert the filesystems to new constants; only the
  infrastructure is done here. The next step in that series is where the
  conflicts would be; that's the conversion of filesystems. It's purely
  mechanical and it's better done after the merge, so if you could run
  something like

	list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$')

	sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \
	        -e 's/\<MS_NOSUID\>/SB_NOSUID/g' \
	        -e 's/\<MS_NODEV\>/SB_NODEV/g' \
	        -e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \
	        -e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \
	        -e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \
	        -e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \
	        -e 's/\<MS_NOATIME\>/SB_NOATIME/g' \
	        -e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \
	        -e 's/\<MS_SILENT\>/SB_SILENT/g' \
	        -e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \
	        -e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \
	        -e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \
	        -e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \
	        $list

  and commit it with something along the lines of 'convert filesystems
  away from use of MS_... constants' as commit message, it would save a
  quite a bit of headache next cycle"

* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Differentiate mount flags (MS_*) from internal superblock flags
  VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
  vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
This commit is contained in:
Linus Torvalds 2017-09-14 18:54:01 -07:00
commit 0f0d12728e
76 changed files with 314 additions and 296 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/filesystems/porting
View File

@ -228,7 +228,7 @@ anything from oops to silent memory corruption.
---
[mandatory]
FS_NOMOUNT is gone. If you use it - just set MS_NOUSER in flags
FS_NOMOUNT is gone. If you use it - just set SB_NOUSER in flags
(see rootfs for one kind of solution and bdev/socket/pipe for another).
---

4
drivers/staging/lustre/lustre/llite/llite_lib.c
View File

@ -210,7 +210,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
data->ocd_ibits_known = MDS_INODELOCK_FULL;
data->ocd_version = LUSTRE_VERSION_CODE;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
if (sbi->ll_flags & LL_SBI_USER_XATTR)
data->ocd_connect_flags |= OBD_CONNECT_XATTR;
@ -2031,7 +2031,7 @@ int ll_remount_fs(struct super_block *sb, int *flags, char *data)
int err;
__u32 read_only;
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
read_only = *flags & MS_RDONLY;
err = obd_set_info_async(NULL, sbi->ll_md_exp,
sizeof(KEY_READ_ONLY),

3
drivers/staging/lustre/lustre/llite/namei.c
View File

@ -561,8 +561,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
}
}
if (it->it_op & IT_OPEN && it->it_flags & FMODE_WRITE &&
dentry->d_sb->s_flags & MS_RDONLY)
if (it->it_op & IT_OPEN && it->it_flags & FMODE_WRITE && sb_rdonly(dentry->d_sb))
return ERR_PTR(-EROFS);
if (it->it_op & IT_CREAT)

2
fs/affs/amigaffs.c
View File

@ -450,7 +450,7 @@ affs_error(struct super_block *sb, const char *function, const char *fmt, ...)
vaf.fmt = fmt;
vaf.va = &args;
pr_crit("error (device %s): %s(): %pV\n", sb->s_id, function, &vaf);
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
pr_warn("Remounting filesystem read-only\n");
sb->s_flags |= MS_RDONLY;
va_end(args);

2
fs/affs/bitmap.c
View File

@ -19,7 +19,7 @@ affs_count_free_blocks(struct super_block *sb)
pr_debug("%s()\n", __func__);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
mutex_lock(&AFFS_SB(sb)->s_bmlock);

6
fs/affs/super.c
View File

@ -80,7 +80,7 @@ void affs_mark_sb_dirty(struct super_block *sb)
struct affs_sb_info *sbi = AFFS_SB(sb);
unsigned long delay;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
spin_lock(&sbi->work_lock);
@ -464,7 +464,7 @@ got_root:
* not recommended.
*/
if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
|| chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
|| chksum == MUFS_DCOFS) && !sb_rdonly(sb)) {
pr_notice("Dircache FS - mounting %s read only\n", sb->s_id);
sb->s_flags |= MS_RDONLY;
}
@ -596,7 +596,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
memcpy(sbi->s_volume, volume, 32);
spin_unlock(&sbi->symlink_lock);
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
return 0;
if (*flags & MS_RDONLY)

2
fs/befs/linuxvfs.c
View File

@ -838,7 +838,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
befs_debug(sb, "---> %s", __func__);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
befs_warning(sb,
"No write support. Marking filesystem read-only");
sb->s_flags |= MS_RDONLY;

2
fs/btrfs/dev-replace.c
View File

@ -704,7 +704,7 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
u64 result;
int ret;
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
return -EROFS;
mutex_lock(&dev_replace->lock_finishing_cancel_unmount);

12
fs/btrfs/disk-io.c
View File

@ -2478,7 +2478,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
return ret;
}
if (fs_info->sb->s_flags & MS_RDONLY) {
if (sb_rdonly(fs_info->sb)) {
ret = btrfs_commit_super(fs_info);
if (ret)
return ret;
@ -2876,7 +2876,7 @@ int open_ctree(struct super_block *sb,
features = btrfs_super_compat_ro_flags(disk_super) &
~BTRFS_FEATURE_COMPAT_RO_SUPP;
if (!(sb->s_flags & MS_RDONLY) && features) {
if (!sb_rdonly(sb) && features) {
btrfs_err(fs_info,
"cannot mount read-write because of unsupported optional features (%llx)",
features);
@ -3038,7 +3038,7 @@ retry_root_backup:
goto fail_sysfs;
}
if (!(sb->s_flags & MS_RDONLY) && !btrfs_check_rw_degradable(fs_info)) {
if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) {
btrfs_warn(fs_info,
"writeable mount is not allowed due to too many missing devices");
goto fail_sysfs;
@ -3097,7 +3097,7 @@ retry_root_backup:
if (ret)
goto fail_qgroup;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
ret = btrfs_cleanup_fs_roots(fs_info);
if (ret)
goto fail_qgroup;
@ -3123,7 +3123,7 @@ retry_root_backup:
goto fail_qgroup;
}
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
if (btrfs_test_opt(fs_info, CLEAR_CACHE) &&
@ -3878,7 +3878,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
cancel_work_sync(&fs_info->async_reclaim_work);
if (!(fs_info->sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(fs_info->sb)) {
/*
* If the cleaner thread is stopped and there are
* block groups queued for removal, the deletion will be

4
fs/btrfs/extent_io.c
View File

@ -2060,7 +2060,7 @@ int repair_eb_io_failure(struct btrfs_fs_info *fs_info,
unsigned long i, num_pages = num_extent_pages(eb->start, eb->len);
int ret = 0;
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
return -EROFS;
for (i = 0; i < num_pages; i++) {
@ -2110,7 +2110,7 @@ int clean_io_failure(struct btrfs_fs_info *fs_info,
failrec->start);
goto out;
}
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
goto out;
spin_lock(&io_tree->lock);

2
fs/btrfs/inode.c
View File

@ -5821,7 +5821,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
if (!IS_ERR(inode) && root != sub_root) {
down_read(&fs_info->cleanup_work_sem);
if (!(inode->i_sb->s_flags & MS_RDONLY))
if (!sb_rdonly(inode->i_sb))
ret = btrfs_orphan_cleanup(sub_root);
up_read(&fs_info->cleanup_work_sem);
if (ret) {

2
fs/btrfs/ioctl.c
View File

@ -4426,7 +4426,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_fs_info *fs_info,
switch (p->cmd) {
case BTRFS_IOCTL_DEV_REPLACE_CMD_START:
if (fs_info->sb->s_flags & MS_RDONLY) {
if (sb_rdonly(fs_info->sb)) {
ret = -EROFS;
goto out;
}

2
fs/btrfs/root-tree.c
View File

@ -228,7 +228,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
int ret;
bool can_recover = true;
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
can_recover = false;
path = btrfs_alloc_path();

11
fs/btrfs/super.c
View File

@ -103,7 +103,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info)
{
struct super_block *sb = fs_info->sb;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
@ -139,7 +139,7 @@ void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function
* Special case: if the error is EROFS, and we're already
* under MS_RDONLY, then it is safe here.
*/
if (errno == -EROFS && (sb->s_flags & MS_RDONLY))
if (errno == -EROFS && sb_rdonly(sb))
return;
#ifdef CONFIG_PRINTK
@ -1701,8 +1701,7 @@ static inline void btrfs_remount_cleanup(struct btrfs_fs_info *fs_info,
* close or the filesystem is read only.
*/
if (btrfs_raw_test_opt(old_opts, AUTO_DEFRAG) &&
(!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) ||
(fs_info->sb->s_flags & MS_RDONLY))) {
(!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) || sb_rdonly(fs_info->sb))) {
btrfs_cleanup_defrag_inodes(fs_info);
}
@ -1749,7 +1748,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
btrfs_resize_thread_pool(fs_info,
fs_info->thread_pool_size, old_thread_pool_size);
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
goto out;
if (*flags & MS_RDONLY) {
@ -1850,7 +1849,7 @@ out:
restore:
/* We've hit an error - don't reset MS_RDONLY */
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
old_flags |= MS_RDONLY;
sb->s_flags = old_flags;
fs_info->mount_opt = old_opts;

4
fs/btrfs/sysfs.c
View File

@ -120,7 +120,7 @@ static ssize_t btrfs_feature_attr_store(struct kobject *kobj,
if (!fs_info)
return -EPERM;
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
return -EROFS;
ret = kstrtoul(skip_spaces(buf), 0, &val);
@ -390,7 +390,7 @@ static ssize_t btrfs_label_store(struct kobject *kobj,
if (!fs_info)
return -EPERM;
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
return -EROFS;
/*

4
fs/btrfs/volumes.c
View File

@ -2324,7 +2324,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
int seeding_dev = 0;
int ret = 0;
if ((sb->s_flags & MS_RDONLY) && !fs_info->fs_devices->seeding)
if (sb_rdonly(sb) && !fs_info->fs_devices->seeding)
return -EROFS;
bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
@ -4053,7 +4053,7 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info)
int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
{
if (fs_info->sb->s_flags & MS_RDONLY)
if (sb_rdonly(fs_info->sb))
return -EROFS;
mutex_lock(&fs_info->balance_mutex);

2
fs/cachefiles/bind.c
View File

@ -133,7 +133,7 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
goto error_unsupported;
ret = -EROFS;
if (root->d_sb->s_flags & MS_RDONLY)
if (sb_rdonly(root->d_sb))
goto error_unsupported;
/* determine the security of the on-disk cache as this governs

3
fs/ecryptfs/main.c
View File

@ -568,8 +568,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
* 1) The lower mount is ro
* 2) The ecryptfs_encrypted_view mount option is specified
*/
if (path.dentry->d_sb->s_flags & MS_RDONLY ||
mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
if (sb_rdonly(path.dentry->d_sb) || mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
s->s_flags |= MS_RDONLY;
s->s_maxbytes = path.dentry->d_sb->s_maxbytes;

2
fs/efs/super.c
View File

@ -306,7 +306,7 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
}
brelse(bh);
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
#ifdef DEBUG
pr_info("forcing read-only mode\n");
#endif

13
fs/ext2/super.c
View File

@ -52,7 +52,7 @@ void ext2_error(struct super_block *sb, const char *function,
struct ext2_sb_info *sbi = EXT2_SB(sb);
struct ext2_super_block *es = sbi->s_es;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
spin_lock(&sbi->s_lock);
sbi->s_mount_state |= EXT2_ERROR_FS;
es->s_state |= cpu_to_le16(EXT2_ERROR_FS);
@ -151,7 +151,7 @@ static void ext2_put_super (struct super_block * sb)
ext2_xattr_destroy_cache(sbi->s_ea_block_cache);
sbi->s_ea_block_cache = NULL;
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
struct ext2_super_block *es = sbi->s_es;
spin_lock(&sbi->s_lock);
@ -943,8 +943,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
le32_to_cpu(features));
goto failed_mount;
}
if (!(sb->s_flags & MS_RDONLY) &&
(features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
if (!sb_rdonly(sb) && (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of "
"unsupported optional features (%x)",
le32_to_cpu(features));
@ -1173,7 +1172,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
ext2_msg(sb, KERN_WARNING,
"warning: mounting ext3 filesystem as ext2");
if (ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY))
if (ext2_setup_super (sb, es, sb_rdonly(sb)))
sb->s_flags |= MS_RDONLY;
ext2_write_super(sb);
return 0;
@ -1305,7 +1304,7 @@ static int ext2_unfreeze(struct super_block *sb)
static void ext2_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
ext2_sync_fs(sb, 1);
}
@ -1343,7 +1342,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
"dax flag with busy inodes while remounting");
sbi->s_mount_opt ^= EXT2_MOUNT_DAX;
}
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) {
spin_unlock(&sbi->s_lock);
return 0;
}

2
fs/ext4/ext4_jbd2.c
View File

@ -47,7 +47,7 @@ static int ext4_journal_check_start(struct super_block *sb)
if (unlikely(ext4_forced_shutdown(EXT4_SB(sb))))
return -EIO;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);
journal = EXT4_SB(sb)->s_journal;

2
fs/ext4/file.c
View File

@ -371,7 +371,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
return -EIO;
if (unlikely(!(sbi->s_mount_flags & EXT4_MF_MNTDIR_SAMPLED) &&
!(sb->s_flags & MS_RDONLY))) {
!sb_rdonly(sb))) {
sbi->s_mount_flags |= EXT4_MF_MNTDIR_SAMPLED;
/*
* Sample where the filesystem has been mounted and

2
fs/ext4/fsync.c
View File

@ -107,7 +107,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
trace_ext4_sync_file_enter(file, datasync);
if (inode->i_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(inode->i_sb)) {
/* Make sure that we read updated s_mount_flags value */
smp_rmb();
if (EXT4_SB(inode->i_sb)->s_mount_flags & EXT4_MF_FS_ABORTED)

2
fs/ext4/ialloc.c
View File

@ -1382,7 +1382,7 @@ int ext4_init_inode_table(struct super_block *sb, ext4_group_t group,
int num, ret = 0, used_blks = 0;
/* This should not happen, but just to be sure check this */
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
ret = 1;
goto out;
}

2
fs/ext4/mmp.c
View File

@ -185,7 +185,7 @@ static int kmmpd(void *data)
goto exit_thread;
}
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
ext4_warning(sb, "kmmpd being stopped since filesystem "
"has been remounted as readonly.");
goto exit_thread;

53
fs/ext4/super.c
View File

@ -405,7 +405,7 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
static void ext4_handle_error(struct super_block *sb)
{
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
if (!test_opt(sb, ERRORS_CONT)) {
@ -587,8 +587,7 @@ void __ext4_std_error(struct super_block *sb, const char *function,
/* Special case: if the error is EROFS, and we're not already
* inside a transaction, then there's really no point in logging
* an error. */
if (errno == -EROFS && journal_current_handle() == NULL &&
(sb->s_flags & MS_RDONLY))
if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb))
return;
if (ext4_error_ratelimit(sb)) {
@ -628,7 +627,7 @@ void __ext4_abort(struct super_block *sb, const char *function,
sb->s_id, function, line, &vaf);
va_end(args);
if ((sb->s_flags & MS_RDONLY) == 0) {
if (sb_rdonly(sb) == 0) {
ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only");
EXT4_SB(sb)->s_mount_flags |= EXT4_MF_FS_ABORTED;
/*
@ -889,11 +888,11 @@ static void ext4_put_super(struct super_block *sb)
ext4_mb_release(sb);
ext4_ext_release(sb);
if (!(sb->s_flags & MS_RDONLY) && !aborted) {
if (!sb_rdonly(sb) && !aborted) {
ext4_clear_feature_journal_needs_recovery(sb);
es->s_state = cpu_to_le16(sbi->s_mount_state);
}
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
ext4_commit_super(sb, 1);
for (i = 0; i < sbi->s_gdb_count; i++)
@ -2100,7 +2099,7 @@ int ext4_seq_options_show(struct seq_file *seq, void *offset)
struct super_block *sb = seq->private;
int rc;
seq_puts(seq, (sb->s_flags & MS_RDONLY) ? "ro" : "rw");
seq_puts(seq, sb_rdonly(sb) ? "ro" : "rw");
rc = _ext4_show_options(seq, sb, 1);
seq_puts(seq, "\n");
return rc;
@ -2368,7 +2367,7 @@ static int ext4_check_descriptors(struct super_block *sb,
"Checksum for group %u failed (%u!=%u)",
i, le16_to_cpu(ext4_group_desc_csum(sb, i,
gdp)), le16_to_cpu(gdp->bg_checksum));
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
ext4_unlock_group(sb, i);
return 0;
}
@ -3136,8 +3135,7 @@ int ext4_register_li_request(struct super_block *sb,
goto out;
}
if (first_not_zeroed == ngroups ||
(sb->s_flags & MS_RDONLY) ||
if (first_not_zeroed == ngroups || sb_rdonly(sb) ||
!test_opt(sb, INIT_INODE_TABLE))
goto out;
@ -3683,7 +3681,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
* previously didn't change the revision level when setting the flags,
* so there is a chance incompat flags are set on a rev 0 filesystem.
*/
if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY)))
if (!ext4_feature_set_ok(sb, (sb_rdonly(sb))))
goto failed_mount;
blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
@ -3812,12 +3810,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_hash_unsigned = 3;
else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
#ifdef __CHAR_UNSIGNED__
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
es->s_flags |=
cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
sbi->s_hash_unsigned = 3;
#else
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
es->s_flags |=
cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
#endif
@ -4017,7 +4015,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
needs_recovery = (es->s_last_orphan != 0 ||
ext4_has_feature_journal_needs_recovery(sb));
if (ext4_has_feature_mmp(sb) && !(sb->s_flags & MS_RDONLY))
if (ext4_has_feature_mmp(sb) && !sb_rdonly(sb))
if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)))
goto failed_mount3a;
@ -4029,7 +4027,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
err = ext4_load_journal(sb, es, journal_devnum);
if (err)
goto failed_mount3a;
} else if (test_opt(sb, NOLOAD) && !(sb->s_flags & MS_RDONLY) &&
} else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) &&
ext4_has_feature_journal_needs_recovery(sb)) {
ext4_msg(sb, KERN_ERR, "required journal recovery "
"suppressed and not mounted read-only");
@ -4143,7 +4141,7 @@ no_journal:
goto failed_mount_wq;
}
if (DUMMY_ENCRYPTION_ENABLED(sbi) && !(sb->s_flags & MS_RDONLY) &&
if (DUMMY_ENCRYPTION_ENABLED(sbi) && !sb_rdonly(sb) &&
!ext4_has_feature_encrypt(sb)) {
ext4_set_feature_encrypt(sb);
ext4_commit_super(sb, 1);
@ -4197,7 +4195,7 @@ no_journal:
goto failed_mount4;
}
if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY))
if (ext4_setup_super(sb, es, sb_rdonly(sb)))
sb->s_flags |= MS_RDONLY;
/* determine the minimum size of new large inodes, if present */
@ -4285,7 +4283,7 @@ no_journal:
#ifdef CONFIG_QUOTA
/* Enable quota usage during mount. */
if (ext4_has_feature_quota(sb) && !(sb->s_flags & MS_RDONLY)) {
if (ext4_has_feature_quota(sb) && !sb_rdonly(sb)) {
err = ext4_enable_quotas(sb);
if (err)
goto failed_mount8;
@ -4609,7 +4607,7 @@ static int ext4_load_journal(struct super_block *sb,
* can get read-write access to the device.
*/
if (ext4_has_feature_journal_needs_recovery(sb)) {
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
ext4_msg(sb, KERN_INFO, "INFO: recovery "
"required on readonly filesystem");
if (really_read_only) {
@ -4764,8 +4762,7 @@ static void ext4_mark_recovery_complete(struct super_block *sb,
if (jbd2_journal_flush(journal) < 0)
goto out;
if (ext4_has_feature_journal_needs_recovery(sb) &&
sb->s_flags & MS_RDONLY) {
if (ext4_has_feature_journal_needs_recovery(sb) && sb_rdonly(sb)) {
ext4_clear_feature_journal_needs_recovery(sb);
ext4_commit_super(sb, 1);
}
@ -4821,7 +4818,7 @@ int ext4_force_commit(struct super_block *sb)
{
journal_t *journal;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
journal = EXT4_SB(sb)->s_journal;
@ -4886,7 +4883,7 @@ static int ext4_freeze(struct super_block *sb)
int error = 0;
journal_t *journal;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
journal = EXT4_SB(sb)->s_journal;
@ -4921,7 +4918,7 @@ out:
*/
static int ext4_unfreeze(struct super_block *sb)
{
if ((sb->s_flags & MS_RDONLY) || ext4_forced_shutdown(EXT4_SB(sb)))
if (sb_rdonly(sb) || ext4_forced_shutdown(EXT4_SB(sb)))
return 0;
if (EXT4_SB(sb)->s_journal) {
@ -5059,7 +5056,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
if (*flags & MS_LAZYTIME)
sb->s_flags |= MS_LAZYTIME;
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) {
err = -EROFS;
goto restore_opts;
@ -5154,7 +5151,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
* Reinitialize lazy itable initialization thread based on
* current settings
*/
if ((sb->s_flags & MS_RDONLY) || !test_opt(sb, INIT_INODE_TABLE))
if (sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE))
ext4_unregister_li_request(sb);
else {
ext4_group_t first_not_zeroed;
@ -5731,7 +5728,7 @@ static inline int ext2_feature_set_ok(struct super_block *sb)
{
if (ext4_has_unknown_ext2_incompat_features(sb))
return 0;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 1;
if (ext4_has_unknown_ext2_ro_compat_features(sb))
return 0;
@ -5762,7 +5759,7 @@ static inline int ext3_feature_set_ok(struct super_block *sb)
return 0;
if (!ext4_has_feature_journal(sb))
return 0;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 1;
if (ext4_has_unknown_ext3_ro_compat_features(sb))
return 0;

2
fs/fat/fatent.c
View File

@ -309,7 +309,7 @@ static void mark_fsinfo_dirty(struct super_block *sb)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32)
if (sb_rdonly(sb) || sbi->fat_bits != 32)
return;
__mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC);

4
fs/fat/inode.c
View File

@ -657,7 +657,7 @@ static void fat_set_state(struct super_block *sb,
struct msdos_sb_info *sbi = MSDOS_SB(sb);
/* do not change any thing if mounted read only */
if ((sb->s_flags & MS_RDONLY) && !force)
if (sb_rdonly(sb) && !force)
return;
/* do not change state if fs was dirty */
@ -787,7 +787,7 @@ static int fat_remount(struct super_block *sb, int *flags, char *data)
/* make sure we update state on remount. */
new_rdonly = *flags & MS_RDONLY;
if (new_rdonly != (sb->s_flags & MS_RDONLY)) {
if (new_rdonly != sb_rdonly(sb)) {
if (new_rdonly)
fat_set_state(sb, 0, 0);
else

2
fs/fat/misc.c
View File

@ -32,7 +32,7 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
if (opts->errors == FAT_ERRORS_PANIC)
panic("FAT-fs (%s): fs panic from previous error\n", sb->s_id);
else if (opts->errors == FAT_ERRORS_RO && !(sb->s_flags & MS_RDONLY)) {
else if (opts->errors == FAT_ERRORS_RO && !sb_rdonly(sb)) {
sb->s_flags |= MS_RDONLY;
fat_msg(sb, KERN_ERR, "Filesystem has been set read-only");
}

2
fs/gfs2/glops.c
View File

@ -554,7 +554,7 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
struct gfs2_inode *ip = gl->gl_object;
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY))
if (!remote || sb_rdonly(sdp->sd_vfs))
return;
if (gl->gl_demote_state == LM_ST_UNLOCKED &&

4
fs/gfs2/ops_fstype.c
View File

@ -1037,7 +1037,7 @@ void gfs2_online_uevent(struct gfs2_sbd *sdp)
char ro[20];
char spectator[20];
char *envp[] = { ro, spectator, NULL };
sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp);
}
@ -1179,7 +1179,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
goto fail_per_node;
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
error = gfs2_make_fs_rw(sdp);
if (error) {
fs_err(sdp, "can't make FS RW: %d\n", error);

2
fs/gfs2/quota.c
View File

@ -452,7 +452,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
*qdp = NULL;
if (sdp->sd_vfs->s_flags & MS_RDONLY)
if (sb_rdonly(sdp->sd_vfs))
return 0;
spin_lock(&qd_lock);

2
fs/gfs2/recovery.c
View File

@ -522,7 +522,7 @@ void gfs2_recover_func(struct work_struct *work)
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
ro = 1;
} else {
if (sdp->sd_vfs->s_flags & MS_RDONLY) {
if (sb_rdonly(sdp->sd_vfs)) {
/* check if device itself is read-only */
ro = bdev_read_only(sdp->sd_vfs->s_bdev);
if (!ro) {

4
fs/gfs2/super.c
View File

@ -893,7 +893,7 @@ restart:
}
spin_unlock(&sdp->sd_jindex_spin);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
error = gfs2_make_fs_ro(sdp);
if (error)
gfs2_io_error(sdp);
@ -1569,7 +1569,7 @@ static void gfs2_evict_inode(struct inode *inode)
return;
}
if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
if (inode->i_nlink || sb_rdonly(sb))
goto out;
if (test_bit(GIF_ALLOC_FAILED, &ip->i_flags)) {

2
fs/gfs2/sys.c
View File

@ -645,7 +645,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
char *envp[] = { ro, spectator, NULL };
int sysfs_frees_sdp = 0;
sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
sdp->sd_kobj.kset = gfs2_kset;

6
fs/hfs/mdb.c
View File

@ -210,7 +210,7 @@ int hfs_mdb_get(struct super_block *sb)
pr_warn("filesystem is marked locked, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
/* Mark the volume uncleanly unmounted in case we crash */
attrib &= cpu_to_be16(~HFS_SB_ATTRIB_UNMNT);
attrib |= cpu_to_be16(HFS_SB_ATTRIB_INCNSTNT);
@ -259,7 +259,7 @@ void hfs_mdb_commit(struct super_block *sb)
{
struct hfs_mdb *mdb = HFS_SB(sb)->mdb;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
lock_buffer(HFS_SB(sb)->mdb_bh);
@ -334,7 +334,7 @@ void hfs_mdb_commit(struct super_block *sb)
void hfs_mdb_close(struct super_block *sb)
{
/* update volume attributes */
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
HFS_SB(sb)->mdb->drAtrb |= cpu_to_be16(HFS_SB_ATTRIB_UNMNT);
HFS_SB(sb)->mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT);

4
fs/hfs/super.c
View File

@ -71,7 +71,7 @@ void hfs_mark_mdb_dirty(struct super_block *sb)
struct hfs_sb_info *sbi = HFS_SB(sb);
unsigned long delay;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
spin_lock(&sbi->work_lock);
@ -115,7 +115,7 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data)
{
sync_filesystem(sb);
*flags |= MS_NODIRATIME;
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
return 0;
if (!(*flags & MS_RDONLY)) {
if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {

10
fs/hfsplus/super.c
View File

@ -264,7 +264,7 @@ void hfsplus_mark_mdb_dirty(struct super_block *sb)
struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
unsigned long delay;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
spin_lock(&sbi->work_lock);
@ -284,7 +284,7 @@ static void hfsplus_put_super(struct super_block *sb)
cancel_delayed_work_sync(&sbi->sync_work);
if (!(sb->s_flags & MS_RDONLY) && sbi->s_vhdr) {
if (!sb_rdonly(sb) && sbi->s_vhdr) {
struct hfsplus_vh *vhdr = sbi->s_vhdr;
vhdr->modify_date = hfsp_now2mt();
@ -329,7 +329,7 @@ static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf)
static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
{
sync_filesystem(sb);
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
return 0;
if (!(*flags & MS_RDONLY)) {
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb)->s_vhdr;
@ -462,7 +462,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
pr_warn("Filesystem is marked locked, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
} else if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) &&
!(sb->s_flags & MS_RDONLY)) {
!sb_rdonly(sb)) {
pr_warn("write access to a journaled filesystem is not supported, use the force option at your own risk, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
@ -535,7 +535,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
} else
hfs_find_exit(&fd);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
/*
* H+LX == hfsplusutils, H+Lx == this driver, H+lx is unused
* all three are registered with Apple for our use

4
fs/hpfs/alloc.c
View File

@ -538,7 +538,7 @@ int hpfs_trim_fs(struct super_block *s, u64 start, u64 end, u64 minlen, unsigned
return 0;
if (start < sbi->sb_dirband_start + sbi->sb_dirband_size && end > sbi->sb_dirband_start) {
hpfs_lock(s);
if (s->s_flags & MS_RDONLY) {
if (sb_rdonly(s)) {
err = -EROFS;
goto unlock_1;
}
@ -559,7 +559,7 @@ unlock_1:
end_bmp = (end + 0x3fff) >> 14;
while (start_bmp < end_bmp && !err) {
hpfs_lock(s);
if (s->s_flags & MS_RDONLY) {
if (sb_rdonly(s)) {
err = -EROFS;
goto unlock_2;
}

2
fs/hpfs/dir.c
View File

@ -264,7 +264,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in
hpfs_result = hpfs_i(result);
if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino;
if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
if (de->has_acl || de->has_xtd_perm) if (!sb_rdonly(dir->i_sb)) {
hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
goto bail1;
}

13
fs/hpfs/super.c
View File

@ -21,7 +21,7 @@
static void mark_dirty(struct super_block *s, int remount)
{
if (hpfs_sb(s)->sb_chkdsk && (remount || !(s->s_flags & MS_RDONLY))) {
if (hpfs_sb(s)->sb_chkdsk && (remount || !sb_rdonly(s))) {
struct buffer_head *bh;
struct hpfs_spare_block *sb;
if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
@ -41,7 +41,7 @@ static void unmark_dirty(struct super_block *s)
{
struct buffer_head *bh;
struct hpfs_spare_block *sb;
if (s->s_flags & MS_RDONLY) return;
if (sb_rdonly(s)) return;
sync_blockdev(s->s_bdev);
if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
sb->dirty = hpfs_sb(s)->sb_chkdsk > 1 - hpfs_sb(s)->sb_was_error;
@ -73,14 +73,14 @@ void hpfs_error(struct super_block *s, const char *fmt, ...)
mark_dirty(s, 0);
panic("HPFS panic");
} else if (hpfs_sb(s)->sb_err == 1) {
if (s->s_flags & MS_RDONLY)
if (sb_rdonly(s))
pr_cont("; already mounted read-only\n");
else {
pr_cont("; remounting read-only\n");
mark_dirty(s, 0);
s->s_flags |= MS_RDONLY;
}
} else if (s->s_flags & MS_RDONLY)
} else if (sb_rdonly(s))
pr_cont("; going on - but anything won't be destroyed because it's read-only\n");
else
pr_cont("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
@ -607,8 +607,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
}
/* Check version */
if (!(s->s_flags & MS_RDONLY) &&
superblock->funcversion != 2 && superblock->funcversion != 3) {
if (!sb_rdonly(s) && superblock->funcversion != 2 && superblock->funcversion != 3) {
pr_err("Bad version %d,%d. Mount readonly to go around\n",
(int)superblock->version, (int)superblock->funcversion);
pr_err("please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
@ -666,7 +665,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
hpfs_error(s, "improperly stopped");
}
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
spareblock->dirty = 1;
spareblock->old_wrote = 0;
mark_buffer_dirty(bh2);

2
fs/isofs/inode.c
View File

@ -737,7 +737,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
root_found:
/* We don't support read-write mounts */
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
error = -EACCES;
goto out_freebh;
}

6
fs/jffs2/fs.c
View File

@ -395,14 +395,14 @@ int jffs2_do_remount_fs(struct super_block *sb, int *flags, char *data)
{
struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY))
if (c->flags & JFFS2_SB_FLAG_RO && !sb_rdonly(sb))
return -EROFS;
/* We stop if it was running, then restart if it needs to.
This also catches the case where it was stopped and this
is just a remount to restart it.
Flush the writebuffer, if neccecary, else we loose it */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
jffs2_stop_garbage_collect_thread(c);
mutex_lock(&c->alloc_sem);
jffs2_flush_wbuf_pad(c);
@ -590,7 +590,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
sb->s_blocksize = PAGE_SIZE;
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_magic = JFFS2_SUPER_MAGIC;
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
jffs2_start_garbage_collect_thread(c);
return 0;

2
fs/jffs2/super.c
View File

@ -342,7 +342,7 @@ static void jffs2_put_super (struct super_block *sb)
static void jffs2_kill_sb(struct super_block *sb)
{
struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
jffs2_stop_garbage_collect_thread(c);
kill_mtd_super(sb);
kfree(c);

4
fs/jffs2/wbuf.c
View File

@ -1162,7 +1162,7 @@ static void delayed_wbuf_sync(struct work_struct *work)
struct jffs2_sb_info *c = work_to_sb(work);
struct super_block *sb = OFNI_BS_2SFFJ(c);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
jffs2_dbg(1, "%s()\n", __func__);
jffs2_flush_wbuf_gc(c, 0);
}
@ -1173,7 +1173,7 @@ void jffs2_dirty_trigger(struct jffs2_sb_info *c)
struct super_block *sb = OFNI_BS_2SFFJ(c);
unsigned long delay;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
delay = msecs_to_jiffies(dirty_writeback_interval * 10);

2
fs/jfs/jfs_mount.c
View File

@ -362,7 +362,7 @@ static int chkSuper(struct super_block *sb)
/* validate fs state */
if (j_sb->s_state != cpu_to_le32(FM_CLEAN) &&
!(sb->s_flags & MS_RDONLY)) {
!sb_rdonly(sb)) {
jfs_err("jfs_mount: Mount Failure: File System Dirty.");
rc = -EINVAL;
goto out;

16
fs/jfs/super.c
View File

@ -76,7 +76,7 @@ static void jfs_handle_error(struct super_block *sb)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
updateSuper(sb, FM_DIRTY);
@ -468,7 +468,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
return -EINVAL;
if (newLVSize) {
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
pr_err("JFS: resize requires volume to be mounted read-write\n");
return -EROFS;
}
@ -477,7 +477,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
return rc;
}
if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) {
/*
* Invalidate any previously read metadata. fsck may have
* changed the on-disk data since we mounted r/o
@ -493,7 +493,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
dquot_resume(sb, -1);
return ret;
}
if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) {
rc = dquot_suspend(sb, -1);
if (rc < 0)
return rc;
@ -502,7 +502,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
return rc;
}
if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
rc = jfs_umount_rw(sb);
if (rc)
return rc;
@ -592,7 +592,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
jfs_err("jfs_mount failed w/return code = %d", rc);
goto out_mount_failed;
}
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
sbi->log = NULL;
else {
rc = jfs_mount_rw(sb, 0);
@ -652,7 +652,7 @@ static int jfs_freeze(struct super_block *sb)
struct jfs_log *log = sbi->log;
int rc = 0;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
txQuiesce(sb);
rc = lmLogShutdown(log);
if (rc) {
@ -682,7 +682,7 @@ static int jfs_unfreeze(struct super_block *sb)
struct jfs_log *log = sbi->log;
int rc = 0;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
rc = updateSuper(sb, FM_MOUNT);
if (rc) {
jfs_error(sb, "updateSuper failed\n");

6
fs/minix/inode.c
View File

@ -42,7 +42,7 @@ static void minix_put_super(struct super_block *sb)
int i;
struct minix_sb_info *sbi = minix_sb(sb);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */
sbi->s_ms->s_state = sbi->s_mount_state;
mark_buffer_dirty(sbi->s_sbh);
@ -125,7 +125,7 @@ static int minix_remount (struct super_block * sb, int * flags, char * data)
sync_filesystem(sb);
ms = sbi->s_ms;
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
return 0;
if (*flags & MS_RDONLY) {
if (ms->s_state & MINIX_VALID_FS ||
@ -293,7 +293,7 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
if (!s->s_root)
goto out_no_root;
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */
ms->s_state &= ~MINIX_VALID_FS;
mark_buffer_dirty(bh);

3
fs/namei.c
View File

@ -447,8 +447,7 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask)
umode_t mode = inode->i_mode;
/* Nobody gets write access to a read-only fs. */
if ((sb->s_flags & MS_RDONLY) &&
(S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
if (sb_rdonly(sb) && (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
return -EROFS;
}
return 0;

62
fs/namespace.c
View File

@ -275,7 +275,7 @@ int __mnt_is_readonly(struct vfsmount *mnt)
{
if (mnt->mnt_flags & MNT_READONLY)
return 1;
if (mnt->mnt_sb->s_flags & MS_RDONLY)
if (sb_rdonly(mnt->mnt_sb))
return 1;
return 0;
}
@ -1029,7 +1029,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
if (!mnt)
return ERR_PTR(-ENOMEM);
if (flags & MS_KERNMOUNT)
if (flags & SB_KERNMOUNT)
mnt->mnt.mnt_flags = MNT_INTERNAL;
root = mount_fs(type, flags, name, data);
@ -1061,7 +1061,7 @@ vfs_submount(const struct dentry *mountpoint, struct file_system_type *type,
if (mountpoint->d_sb->s_user_ns != &init_user_ns)
return ERR_PTR(-EPERM);
return vfs_kern_mount(type, MS_SUBMOUNT, name, data);
return vfs_kern_mount(type, SB_SUBMOUNT, name, data);
}
EXPORT_SYMBOL_GPL(vfs_submount);
@ -1592,8 +1592,8 @@ static int do_umount(struct mount *mnt, int flags)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
down_write(&sb->s_umount);
if (!(sb->s_flags & MS_RDONLY))
retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
if (!sb_rdonly(sb))
retval = do_remount_sb(sb, SB_RDONLY, NULL, 0);
up_write(&sb->s_umount);
return retval;
}
@ -2117,7 +2117,7 @@ static void unlock_mount(struct mountpoint *where)
static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)
{
if (mnt->mnt.mnt_sb->s_flags & MS_NOUSER)
if (mnt->mnt.mnt_sb->s_flags & SB_NOUSER)
return -EINVAL;
if (d_is_dir(mp->m_dentry) !=
@ -2131,9 +2131,9 @@ static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)
* Sanity check the flags to change_mnt_propagation.
*/
static int flags_to_propagation_type(int flags)
static int flags_to_propagation_type(int ms_flags)
{
int type = flags & ~(MS_REC | MS_SILENT);
int type = ms_flags & ~(MS_REC | MS_SILENT);
/* Fail if any non-propagation flags are set */
if (type & ~(MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
@ -2147,18 +2147,18 @@ static int flags_to_propagation_type(int flags)
/*
* recursively change the type of the mountpoint.
*/
static int do_change_type(struct path *path, int flag)
static int do_change_type(struct path *path, int ms_flags)
{
struct mount *m;
struct mount *mnt = real_mount(path->mnt);
int recurse = flag & MS_REC;
int recurse = ms_flags & MS_REC;
int type;
int err = 0;
if (path->dentry != path->mnt->mnt_root)
return -EINVAL;
type = flags_to_propagation_type(flag);
type = flags_to_propagation_type(ms_flags);
if (!type)
return -EINVAL;
@ -2280,8 +2280,8 @@ static int change_mount_flags(struct vfsmount *mnt, int ms_flags)
* If you've mounted a non-root directory somewhere and want to do remount
* on it - tough luck.
*/
static int do_remount(struct path *path, int flags, int mnt_flags,
void *data)
static int do_remount(struct path *path, int ms_flags, int sb_flags,
int mnt_flags, void *data)
{
int err;
struct super_block *sb = path->mnt->mnt_sb;
@ -2325,12 +2325,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
return err;
down_write(&sb->s_umount);
if (flags & MS_BIND)
err = change_mount_flags(path->mnt, flags);
if (ms_flags & MS_BIND)
err = change_mount_flags(path->mnt, ms_flags);
else if (!capable(CAP_SYS_ADMIN))
err = -EPERM;
else
err = do_remount_sb(sb, flags, data, 0);
err = do_remount_sb(sb, sb_flags, data, 0);
if (!err) {
lock_mount_hash();
mnt_flags |= mnt->mnt.mnt_flags & ~MNT_USER_SETTABLE_MASK;
@ -2495,7 +2495,7 @@ static bool mount_too_revealing(struct vfsmount *mnt, int *new_mnt_flags);
* create a new mount for userspace and request it to be added into the
* namespace's tree
*/
static int do_new_mount(struct path *path, const char *fstype, int flags,
static int do_new_mount(struct path *path, const char *fstype, int sb_flags,
int mnt_flags, const char *name, void *data)
{
struct file_system_type *type;
@ -2509,7 +2509,7 @@ static int do_new_mount(struct path *path, const char *fstype, int flags,
if (!type)
return -ENODEV;
mnt = vfs_kern_mount(type, flags, name, data);
mnt = vfs_kern_mount(type, sb_flags, name, data);
if (!IS_ERR(mnt) && (type->fs_flags & FS_HAS_SUBTYPE) &&
!mnt->mnt_sb->s_subtype)
mnt = fs_set_subtype(mnt, fstype);
@ -2764,8 +2764,8 @@ long do_mount(const char *dev_name, const char __user *dir_name,
const char *type_page, unsigned long flags, void *data_page)
{
struct path path;
unsigned int mnt_flags = 0, sb_flags;
int retval = 0;
int mnt_flags = 0;
/* Discard magic */
if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
@ -2775,6 +2775,9 @@ long do_mount(const char *dev_name, const char __user *dir_name,
if (data_page)
((char *)data_page)[PAGE_SIZE - 1] = 0;
if (flags & MS_NOUSER)
return -EINVAL;
/* ... and get the mountpoint */
retval = user_path(dir_name, &path);
if (retval)
@ -2784,7 +2787,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
type_page, flags, data_page);
if (!retval && !may_mount())
retval = -EPERM;
if (!retval && (flags & MS_MANDLOCK) && !may_mandlock())
if (!retval && (flags & SB_MANDLOCK) && !may_mandlock())
retval = -EPERM;
if (retval)
goto dput_out;
@ -2806,7 +2809,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
mnt_flags |= MNT_NODIRATIME;
if (flags & MS_STRICTATIME)
mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
if (flags & MS_RDONLY)
if (flags & SB_RDONLY)
mnt_flags |= MNT_READONLY;
/* The default atime for remount is preservation */
@ -2817,12 +2820,15 @@ long do_mount(const char *dev_name, const char __user *dir_name,
mnt_flags |= path.mnt->mnt_flags & MNT_ATIME_MASK;
}
flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
MS_STRICTATIME | MS_NOREMOTELOCK | MS_SUBMOUNT);
sb_flags = flags & (SB_RDONLY |
SB_SYNCHRONOUS |
SB_MANDLOCK |
SB_DIRSYNC |
SB_SILENT |
SB_POSIXACL);
if (flags & MS_REMOUNT)
retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
retval = do_remount(&path, flags, sb_flags, mnt_flags,
data_page);
else if (flags & MS_BIND)
retval = do_loopback(&path, dev_name, flags & MS_REC);
@ -2831,7 +2837,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
else if (flags & MS_MOVE)
retval = do_move_mount(&path, dev_name);
else
retval = do_new_mount(&path, type_page, flags, mnt_flags,
retval = do_new_mount(&path, type_page, sb_flags, mnt_flags,
dev_name, data_page);
dput_out:
path_put(&path);
@ -3281,7 +3287,7 @@ void put_mnt_ns(struct mnt_namespace *ns)
struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
{
struct vfsmount *mnt;
mnt = vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
mnt = vfs_kern_mount(type, SB_KERNMOUNT, type->name, data);
if (!IS_ERR(mnt)) {
/*
* it is a longterm mount, don't release mnt until
@ -3358,7 +3364,7 @@ static bool mnt_already_visible(struct mnt_namespace *ns, struct vfsmount *new,
mnt_flags = mnt->mnt.mnt_flags;
/* Don't miss readonly hidden in the superblock flags */
if (mnt->mnt.mnt_sb->s_flags & MS_RDONLY)
if (sb_rdonly(mnt->mnt.mnt_sb))
mnt_flags |= MNT_LOCK_READONLY;
/* Verify the mount flags are equal to or more permissive

2
fs/nfs/super.c
View File

@ -812,7 +812,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
* Display all mount option settings
*/
seq_printf(m, "\n\topts:\t");
seq_puts(m, root->d_sb->s_flags & MS_RDONLY ? "ro" : "rw");
seq_puts(m, sb_rdonly(root->d_sb) ? "ro" : "rw");
seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : "");
seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");

4
fs/nilfs2/inode.c
View File

@ -174,7 +174,7 @@ static int nilfs_writepages(struct address_space *mapping,
struct inode *inode = mapping->host;
int err = 0;
if (inode->i_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(inode->i_sb)) {
nilfs_clear_dirty_pages(mapping, false);
return -EROFS;
}
@ -191,7 +191,7 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
struct inode *inode = page->mapping->host;
int err;
if (inode->i_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(inode->i_sb)) {
/*
* It means that filesystem was remounted in read-only
* mode because of error or metadata corruption. But we

2
fs/nilfs2/mdt.c
View File

@ -413,7 +413,7 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc)
struct super_block *sb;
int err = 0;
if (inode && (inode->i_sb->s_flags & MS_RDONLY)) {
if (inode && sb_rdonly(inode->i_sb)) {
/*
* It means that filesystem was remounted in read-only
* mode because of error or metadata corruption. But we

19
fs/nilfs2/super.c
View File

@ -136,7 +136,7 @@ void __nilfs_error(struct super_block *sb, const char *function,
va_end(args);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
nilfs_set_error(sb);
if (nilfs_test_opt(nilfs, ERRORS_RO)) {
@ -478,7 +478,7 @@ static void nilfs_put_super(struct super_block *sb)
nilfs_detach_log_writer(sb);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
down_write(&nilfs->ns_sem);
nilfs_cleanup_super(sb);
up_write(&nilfs->ns_sem);
@ -578,7 +578,7 @@ static int nilfs_freeze(struct super_block *sb)
struct the_nilfs *nilfs = sb->s_fs_info;
int err;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
/* Mark super block clean */
@ -592,7 +592,7 @@ static int nilfs_unfreeze(struct super_block *sb)
{
struct the_nilfs *nilfs = sb->s_fs_info;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
down_write(&nilfs->ns_sem);
@ -898,7 +898,7 @@ int nilfs_check_feature_compatibility(struct super_block *sb,
}
features = le64_to_cpu(sbp->s_feature_compat_ro) &
~NILFS_FEATURE_COMPAT_RO_SUPP;
if (!(sb->s_flags & MS_RDONLY) && features) {
if (!sb_rdonly(sb) && features) {
nilfs_msg(sb, KERN_ERR,
"couldn't mount RDWR because of unsupported optional features (%llx)",
(unsigned long long)features);
@ -1083,7 +1083,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
goto failed_unload;
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
err = nilfs_attach_log_writer(sb, fsroot);
if (err)
goto failed_checkpoint;
@ -1095,7 +1095,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
nilfs_put_root(fsroot);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
down_write(&nilfs->ns_sem);
nilfs_setup_super(sb, true);
up_write(&nilfs->ns_sem);
@ -1144,7 +1144,7 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
goto restore_opts;
}
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
goto out;
if (*flags & MS_RDONLY) {
/* Shutting down log writer */
@ -1338,8 +1338,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags,
if ((flags ^ s->s_flags) & MS_RDONLY) {
nilfs_msg(s, KERN_ERR,
"the device already has a %s mount.",
(s->s_flags & MS_RDONLY) ?
"read-only" : "read/write");
sb_rdonly(s) ? "read-only" : "read/write");
err = -EBUSY;
goto failed_super;
}

31
fs/ntfs/super.c
View File

@ -487,7 +487,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
* When remounting read-only, mark the volume clean if no volume errors
* have occurred.
*/
if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) {
static const char *es = ". Cannot remount read-write.";
/* Remounting read-write. */
@ -548,7 +548,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
NVolSetErrors(vol);
return -EROFS;
}
} else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) {
} else if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) {
/* Remounting read-only. */
if (!NVolErrors(vol)) {
if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY))
@ -732,7 +732,7 @@ hotfix_primary_boot_sector:
* on a large sector device contains the whole boot loader or
* just the first 512 bytes).
*/
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
ntfs_warning(sb, "Hot-fix: Recovering invalid primary "
"boot sector from backup copy.");
memcpy(bh_primary->b_data, bh_backup->b_data,
@ -1789,7 +1789,7 @@ static bool load_system_files(ntfs_volume *vol)
static const char *es3 = ". Run ntfsfix and/or chkdsk.";
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -1928,7 +1928,7 @@ get_ctx_vol_failed:
(unsigned)le16_to_cpu(vol->vol_flags));
}
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -1961,7 +1961,7 @@ get_ctx_vol_failed:
es1 = !vol->logfile_ino ? es1a : es1b;
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -2010,7 +2010,7 @@ get_ctx_vol_failed:
es1 = err < 0 ? es1a : es1b;
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -2028,8 +2028,7 @@ get_ctx_vol_failed:
NVolSetErrors(vol);
}
/* If (still) a read-write mount, mark the volume dirty. */
if (!(sb->s_flags & MS_RDONLY) &&
ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) {
if (!sb_rdonly(sb) && ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) {
static const char *es1 = "Failed to set dirty bit in volume "
"information flags";
static const char *es2 = ". Run chkdsk.";
@ -2075,8 +2074,7 @@ get_ctx_vol_failed:
}
#endif
/* If (still) a read-write mount, empty the logfile. */
if (!(sb->s_flags & MS_RDONLY) &&
!ntfs_empty_logfile(vol->logfile_ino)) {
if (!sb_rdonly(sb) && !ntfs_empty_logfile(vol->logfile_ino)) {
static const char *es1 = "Failed to empty $LogFile";
static const char *es2 = ". Mount in Windows.";
@ -2121,7 +2119,7 @@ get_ctx_vol_failed:
static const char *es2 = ". Run chkdsk.";
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -2139,8 +2137,7 @@ get_ctx_vol_failed:
NVolSetErrors(vol);
}
/* If (still) a read-write mount, mark the quotas out of date. */
if (!(sb->s_flags & MS_RDONLY) &&
!ntfs_mark_quotas_out_of_date(vol)) {
if (!sb_rdonly(sb) && !ntfs_mark_quotas_out_of_date(vol)) {
static const char *es1 = "Failed to mark quotas out of date";
static const char *es2 = ". Run chkdsk.";
@ -2165,7 +2162,7 @@ get_ctx_vol_failed:
static const char *es2 = ". Run chkdsk.";
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
ON_ERRORS_CONTINUE))) {
ntfs_error(sb, "%s and neither on_errors="
@ -2183,7 +2180,7 @@ get_ctx_vol_failed:
NVolSetErrors(vol);
}
/* If (still) a read-write mount, stamp the transaction log. */
if (!(sb->s_flags & MS_RDONLY) && !ntfs_stamp_usnjrnl(vol)) {
if (!sb_rdonly(sb) && !ntfs_stamp_usnjrnl(vol)) {
static const char *es1 = "Failed to stamp transaction log "
"($UsnJrnl)";
static const char *es2 = ". Run chkdsk.";
@ -2314,7 +2311,7 @@ static void ntfs_put_super(struct super_block *sb)
* If a read-write mount and no volume errors have occurred, mark the
* volume clean. Also, re-commit all affected inodes.
*/
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!NVolErrors(vol)) {
if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY))
ntfs_warning(sb, "Failed to clear dirty bit "

15
fs/ocfs2/super.c
View File

@ -675,7 +675,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
}
/* We're going to/from readonly mode. */
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
/* Disable quota accounting before remounting RO */
if (*flags & MS_RDONLY) {
ret = ocfs2_susp_quotas(osb, 0);
@ -1063,7 +1063,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
/* Hard readonly mode only if: bdev_read_only, MS_RDONLY,
* heartbeat=none */
if (bdev_read_only(sb->s_bdev)) {
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
status = -EACCES;
mlog(ML_ERROR, "Readonly device detected but readonly "
"mount was not specified.\n");
@ -1098,7 +1098,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
}
if (!ocfs2_is_hard_readonly(osb)) {
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
ocfs2_set_ro_flag(osb, 0);
}
@ -1179,7 +1179,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
/* Now we can initialize quotas because we can afford to wait
* for cluster locks recovery now. That also means that truncation
* log recovery can happen but that waits for proper quota setup */
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
status = ocfs2_enable_quotas(osb);
if (status < 0) {
/* We have to err-out specially here because
@ -2180,8 +2180,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
status = -EINVAL;
goto bail;
}
if (!(osb->sb->s_flags & MS_RDONLY) &&
(i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
mlog(ML_ERROR, "couldn't mount RDWR because of "
"unsupported optional features (%x).\n", i);
status = -EINVAL;
@ -2567,9 +2566,7 @@ static int ocfs2_handle_error(struct super_block *sb)
rv = -EIO;
} else { /* default option */
rv = -EROFS;
if (sb->s_flags & MS_RDONLY &&
(ocfs2_is_soft_readonly(osb) ||
ocfs2_is_hard_readonly(osb)))
if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb)))
return rv;
pr_crit("OCFS2: File system is now read-only.\n");

2
fs/overlayfs/super.c
View File

@ -870,7 +870,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
goto out_free_config;
/* Upper fs should not be r/o */
if (upperpath.mnt->mnt_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(upperpath.mnt->mnt_sb)) {
pr_err("overlayfs: upper fs is r/o, try multi-lower layers mount\n");
err = -EINVAL;
goto out_put_upperpath;

2
fs/proc_namespace.c
View File

@ -178,7 +178,7 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)
} else {
mangle(m, r->mnt_devname ? r->mnt_devname : "none");
}
seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
seq_puts(m, sb_rdonly(sb) ? " ro" : " rw");
err = show_sb_opts(m, sb);
if (err)
goto out;

2
fs/quota/quota.c
View File

@ -753,7 +753,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
case Q_XGETNEXTQUOTA:
return quota_getnextxquota(sb, type, id, addr);
case Q_XQUOTASYNC:
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
/* XFS quotas are fully coherent now, making this call a noop */
return 0;

2
fs/reiserfs/inode.c
View File

@ -1776,7 +1776,7 @@ int reiserfs_write_inode(struct inode *inode, struct writeback_control *wbc)
struct reiserfs_transaction_handle th;
int jbegin_count = 1;
if (inode->i_sb->s_flags & MS_RDONLY)
if (sb_rdonly(inode->i_sb))
return -EROFS;
/*
* memory pressure can sometimes initiate write_inode calls with

2
fs/reiserfs/journal.c
View File

@ -1918,7 +1918,7 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
* we only want to flush out transactions if we were
* called with error == 0
*/
if (!error && !(sb->s_flags & MS_RDONLY)) {
if (!error && !sb_rdonly(sb)) {
/* end the current trans */
BUG_ON(!th->t_trans_id);
do_journal_end(th, FLUSH_ALL);

2
fs/reiserfs/prints.c
View File

@ -386,7 +386,7 @@ void __reiserfs_error(struct super_block *sb, const char *id,
printk(KERN_CRIT "REISERFS error (device %s): %s: %s\n",
sb->s_id, function, error_buf);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return;
reiserfs_info(sb, "Remounting filesystem read-only\n");

18
fs/reiserfs/super.c
View File

@ -121,7 +121,7 @@ void reiserfs_schedule_old_flush(struct super_block *s)
* Avoid scheduling flush when sb is being shut down. It can race
* with journal shutdown and free still queued delayed work.
*/
if (s->s_flags & MS_RDONLY || !(s->s_flags & MS_ACTIVE))
if (sb_rdonly(s) || !(s->s_flags & MS_ACTIVE))
return;
spin_lock(&sbi->old_work_lock);
@ -151,7 +151,7 @@ static int reiserfs_freeze(struct super_block *s)
reiserfs_cancel_old_flush(s);
reiserfs_write_lock(s);
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
int err = journal_begin(&th, s, 1);
if (err) {
reiserfs_block_writes(&th);
@ -599,7 +599,7 @@ static void reiserfs_put_super(struct super_block *s)
* change file system state to current state if it was mounted
* with read-write permissions
*/
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
if (!journal_begin(&th, s, 10)) {
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s),
1);
@ -700,7 +700,7 @@ static void reiserfs_dirty_inode(struct inode *inode, int flags)
int err = 0;
if (inode->i_sb->s_flags & MS_RDONLY) {
if (sb_rdonly(inode->i_sb)) {
reiserfs_warning(inode->i_sb, "clm-6006",
"writing inode %lu on readonly FS",
inode->i_ino);
@ -1525,7 +1525,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
reiserfs_write_unlock(s);
reiserfs_xattr_init(s, *mount_flags);
/* remount read-only */
if (s->s_flags & MS_RDONLY)
if (sb_rdonly(s))
/* it is read-only already */
goto out_ok_unlocked;
@ -1551,7 +1551,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
} else {
/* remount read-write */
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
reiserfs_write_unlock(s);
reiserfs_xattr_init(s, *mount_flags);
goto out_ok_unlocked; /* We are read-write already */
@ -1855,7 +1855,7 @@ static int what_hash(struct super_block *s)
* the super
*/
if (code != UNSET_HASH &&
!(s->s_flags & MS_RDONLY) &&
!sb_rdonly(s) &&
code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
}
@ -2052,7 +2052,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
if (replay_only(s))
goto error_unlocked;
if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
SWARN(silent, s, "clm-7000",
"Detected readonly device, marking FS readonly");
s->s_flags |= MS_RDONLY;
@ -2101,7 +2101,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
else
set_bit(REISERFS_3_6, &sbi->s_properties);
if (!(s->s_flags & MS_RDONLY)) {
if (!sb_rdonly(s)) {
errval = journal_begin(&th, s, 1);
if (errval) {

74
fs/super.c
View File

@ -360,7 +360,7 @@ static int grab_super(struct super_block *s) __releases(sb_lock)
s->s_count++;
spin_unlock(&sb_lock);
down_write(&s->s_umount);
if ((s->s_flags & MS_BORN) && atomic_inc_not_zero(&s->s_active)) {
if ((s->s_flags & SB_BORN) && atomic_inc_not_zero(&s->s_active)) {
put_super(s);
return 1;
}
@ -390,7 +390,7 @@ bool trylock_super(struct super_block *sb)
{
if (down_read_trylock(&sb->s_umount)) {
if (!hlist_unhashed(&sb->s_instances) &&
sb->s_root && (sb->s_flags & MS_BORN))
sb->s_root && (sb->s_flags & SB_BORN))
return true;
up_read(&sb->s_umount);
}
@ -419,7 +419,7 @@ void generic_shutdown_super(struct super_block *sb)
if (sb->s_root) {
shrink_dcache_for_umount(sb);
sync_filesystem(sb);
sb->s_flags &= ~MS_ACTIVE;
sb->s_flags &= ~SB_ACTIVE;
fsnotify_unmount_inodes(sb);
cgroup_writeback_umount();
@ -472,7 +472,7 @@ struct super_block *sget_userns(struct file_system_type *type,
struct super_block *old;
int err;
if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) &&
if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) &&
!(type->fs_flags & FS_USERNS_MOUNT) &&
!capable(CAP_SYS_ADMIN))
return ERR_PTR(-EPERM);
@ -502,7 +502,7 @@ retry:
}
if (!s) {
spin_unlock(&sb_lock);
s = alloc_super(type, (flags & ~MS_SUBMOUNT), user_ns);
s = alloc_super(type, (flags & ~SB_SUBMOUNT), user_ns);
if (!s)
return ERR_PTR(-ENOMEM);
goto retry;
@ -547,11 +547,11 @@ struct super_block *sget(struct file_system_type *type,
* mount through to here so always use &init_user_ns
* until that changes.
*/
if (flags & MS_SUBMOUNT)
if (flags & SB_SUBMOUNT)
user_ns = &init_user_ns;
/* Ensure the requestor has permissions over the target filesystem */
if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN))
if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN))
return ERR_PTR(-EPERM);
return sget_userns(type, test, set, flags, user_ns, data);
@ -594,7 +594,7 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
spin_unlock(&sb_lock);
down_read(&sb->s_umount);
if (sb->s_root && (sb->s_flags & MS_BORN))
if (sb->s_root && (sb->s_flags & SB_BORN))
f(sb, arg);
up_read(&sb->s_umount);
@ -628,7 +628,7 @@ void iterate_supers_type(struct file_system_type *type,
spin_unlock(&sb_lock);
down_read(&sb->s_umount);
if (sb->s_root && (sb->s_flags & MS_BORN))
if (sb->s_root && (sb->s_flags & SB_BORN))
f(sb, arg);
up_read(&sb->s_umount);
@ -664,7 +664,7 @@ rescan:
else
down_write(&sb->s_umount);
/* still alive? */
if (sb->s_root && (sb->s_flags & MS_BORN))
if (sb->s_root && (sb->s_flags & SB_BORN))
return sb;
if (!excl)
up_read(&sb->s_umount);
@ -785,7 +785,7 @@ rescan:
spin_unlock(&sb_lock);
down_read(&sb->s_umount);
/* still alive? */
if (sb->s_root && (sb->s_flags & MS_BORN))
if (sb->s_root && (sb->s_flags & SB_BORN))
return sb;
up_read(&sb->s_umount);
/* nope, got unmounted */
@ -801,13 +801,13 @@ rescan:
/**
* do_remount_sb - asks filesystem to change mount options.
* @sb: superblock in question
* @flags: numeric part of options
* @sb_flags: revised superblock flags
* @data: the rest of options
* @force: whether or not to force the change
*
* Alters the mount options of a mounted file system.
*/
int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force)
{
int retval;
int remount_ro;
@ -816,11 +816,11 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
return -EBUSY;
#ifdef CONFIG_BLOCK
if (!(flags & MS_RDONLY) && bdev_read_only(sb->s_bdev))
if (!(sb_flags & SB_RDONLY) && bdev_read_only(sb->s_bdev))
return -EACCES;
#endif
remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb);
if (remount_ro) {
if (!hlist_empty(&sb->s_pins)) {
@ -831,7 +831,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
return 0;
if (sb->s_writers.frozen != SB_UNFROZEN)
return -EBUSY;
remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb);
}
}
shrink_dcache_sb(sb);
@ -850,7 +850,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
}
if (sb->s_op->remount_fs) {
retval = sb->s_op->remount_fs(sb, &flags, data);
retval = sb->s_op->remount_fs(sb, &sb_flags, data);
if (retval) {
if (!force)
goto cancel_readonly;
@ -859,7 +859,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
sb->s_type->name, retval);
}
}
sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (sb_flags & MS_RMT_MASK);
/* Needs to be ordered wrt mnt_is_readonly() */
smp_wmb();
sb->s_readonly_remount = 0;
@ -892,12 +892,12 @@ static void do_emergency_remount(struct work_struct *work)
sb->s_count++;
spin_unlock(&sb_lock);
down_write(&sb->s_umount);
if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) &&
!(sb->s_flags & MS_RDONLY)) {
if (sb->s_root && sb->s_bdev && (sb->s_flags & SB_BORN) &&
!sb_rdonly(sb)) {
/*
* What lock protects sb->s_flags??
*/
do_remount_sb(sb, MS_RDONLY, NULL, 1);
do_remount_sb(sb, SB_RDONLY, NULL, 1);
}
up_write(&sb->s_umount);
spin_lock(&sb_lock);
@ -1023,7 +1023,7 @@ struct dentry *mount_ns(struct file_system_type *fs_type,
/* Don't allow mounting unless the caller has CAP_SYS_ADMIN
* over the namespace.
*/
if (!(flags & MS_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN))
if (!(flags & SB_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN))
return ERR_PTR(-EPERM);
sb = sget_userns(fs_type, ns_test_super, ns_set_super, flags,
@ -1033,13 +1033,13 @@ struct dentry *mount_ns(struct file_system_type *fs_type,
if (!sb->s_root) {
int err;
err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
err = fill_super(sb, data, flags & SB_SILENT ? 1 : 0);
if (err) {
deactivate_locked_super(sb);
return ERR_PTR(err);
}
sb->s_flags |= MS_ACTIVE;
sb->s_flags |= SB_ACTIVE;
}
return dget(sb->s_root);
@ -1071,7 +1071,7 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
fmode_t mode = FMODE_READ | FMODE_EXCL;
int error = 0;
if (!(flags & MS_RDONLY))
if (!(flags & SB_RDONLY))
mode |= FMODE_WRITE;
bdev = blkdev_get_by_path(dev_name, mode, fs_type);
@ -1089,14 +1089,14 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
error = -EBUSY;
goto error_bdev;
}
s = sget(fs_type, test_bdev_super, set_bdev_super, flags | MS_NOSEC,
s = sget(fs_type, test_bdev_super, set_bdev_super, flags | SB_NOSEC,
bdev);
mutex_unlock(&bdev->bd_fsfreeze_mutex);
if (IS_ERR(s))
goto error_s;
if (s->s_root) {
if ((flags ^ s->s_flags) & MS_RDONLY) {
if ((flags ^ s->s_flags) & SB_RDONLY) {
deactivate_locked_super(s);
error = -EBUSY;
goto error_bdev;
@ -1116,13 +1116,13 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
s->s_mode = mode;
snprintf(s->s_id, sizeof(s->s_id), "%pg", bdev);
sb_set_blocksize(s, block_size(bdev));
error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
if (error) {
deactivate_locked_super(s);
goto error;
}
s->s_flags |= MS_ACTIVE;
s->s_flags |= SB_ACTIVE;
bdev->bd_super = s;
}
@ -1162,12 +1162,12 @@ struct dentry *mount_nodev(struct file_system_type *fs_type,
if (IS_ERR(s))
return ERR_CAST(s);
error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
if (error) {
deactivate_locked_super(s);
return ERR_PTR(error);
}
s->s_flags |= MS_ACTIVE;
s->s_flags |= SB_ACTIVE;
return dget(s->s_root);
}
EXPORT_SYMBOL(mount_nodev);
@ -1188,12 +1188,12 @@ struct dentry *mount_single(struct file_system_type *fs_type,
if (IS_ERR(s))
return ERR_CAST(s);
if (!s->s_root) {
error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
if (error) {
deactivate_locked_super(s);
return ERR_PTR(error);
}
s->s_flags |= MS_ACTIVE;
s->s_flags |= SB_ACTIVE;
} else {
do_remount_sb(s, flags, data, 0);
}
@ -1227,7 +1227,7 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data)
sb = root->d_sb;
BUG_ON(!sb);
WARN_ON(!sb->s_bdi);
sb->s_flags |= MS_BORN;
sb->s_flags |= SB_BORN;
error = security_sb_kern_mount(sb, flags, secdata);
if (error)
@ -1434,12 +1434,12 @@ int freeze_super(struct super_block *sb)
return -EBUSY;
}
if (!(sb->s_flags & MS_BORN)) {
if (!(sb->s_flags & SB_BORN)) {
up_write(&sb->s_umount);
return 0; /* sic - it's "nothing to do" */
}
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
/* Nothing to do really... */
sb->s_writers.frozen = SB_FREEZE_COMPLETE;
up_write(&sb->s_umount);
@ -1502,7 +1502,7 @@ int thaw_super(struct super_block *sb)
return -EINVAL;
}
if (sb->s_flags & MS_RDONLY) {
if (sb_rdonly(sb)) {
sb->s_writers.frozen = SB_UNFROZEN;
goto out;
}

6
fs/sync.c
View File

@ -57,7 +57,7 @@ int sync_filesystem(struct super_block *sb)
/*
* No point in syncing out anything if the filesystem is read-only.
*/
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return 0;
ret = __sync_filesystem(sb, 0);
@ -69,13 +69,13 @@ EXPORT_SYMBOL(sync_filesystem);
static void sync_inodes_one_sb(struct super_block *sb, void *arg)
{
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
sync_inodes_sb(sb);
}
static void sync_fs_one_sb(struct super_block *sb, void *arg)
{
if (!(sb->s_flags & MS_RDONLY) && sb->s_op->sync_fs)
if (!sb_rdonly(sb) && sb->s_op->sync_fs)
sb->s_op->sync_fs(sb, *(int *)arg);
}

2
fs/sysv/balloc.c
View File

@ -231,7 +231,7 @@ trust_sb:
Ecount:
printk("sysv_count_free_blocks: free block count was %d, "
"correcting to %d\n", sb_count, count);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
*sbi->s_free_blocks = cpu_to_fs32(sbi, count);
dirty_sb(sb);
}

2
fs/sysv/ialloc.c
View File

@ -220,7 +220,7 @@ Einval:
printk("sysv_count_free_inodes: "
"free inode count was %d, correcting to %d\n",
sb_count, count);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
*sbi->s_sb_total_free_inodes = cpu_to_fs16(SYSV_SB(sb), count);
dirty_sb(sb);
}

2
fs/sysv/inode.c
View File

@ -70,7 +70,7 @@ static void sysv_put_super(struct super_block *sb)
{
struct sysv_sb_info *sbi = SYSV_SB(sb);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
/* XXX ext2 also updates the state here */
mark_buffer_dirty(sbi->s_bh1);
if (sbi->s_bh1 != sbi->s_bh2)

2
fs/sysv/super.c
View File

@ -216,7 +216,7 @@ static int detect_sysv(struct sysv_sb_info *sbi, struct buffer_head *bh)
if (fs16_to_cpu(sbi, sbd->s_nfree) == 0xffff) {
sbi->s_type = FSTYPE_AFS;
sbi->s_forced_ro = 1;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
printk("SysV FS: SCO EAFS on %s detected, "
"forcing read-only mode.\n",
sb->s_id);

2
fs/ubifs/super.c
View File

@ -1159,7 +1159,7 @@ static int mount_ubifs(struct ubifs_info *c)
long long x, y;
size_t sz;
c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY);
c->ro_mount = !!sb_rdonly(c->vfs_sb);
/* Suppress error messages while probing if MS_SILENT is set */
c->probing = !!(c->vfs_sb->s_flags & MS_SILENT);

14
fs/udf/super.c
View File

@ -673,7 +673,7 @@ static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
sbi->s_dmode = uopt.dmode;
write_unlock(&sbi->s_cred_lock);
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
goto out_unlock;
if (*flags & MS_RDONLY)
@ -1017,7 +1017,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition,
fe = udf_iget_special(sb, &addr);
if (IS_ERR(fe)) {
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
else {
udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
@ -1341,7 +1341,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
* writing to it (we overwrite blocks instead of relocating
* them).
*/
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
ret = -EACCES;
goto out_bh;
}
@ -2205,7 +2205,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
ret = -EINVAL;
goto error_out;
} else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION &&
!(sb->s_flags & MS_RDONLY)) {
!sb_rdonly(sb)) {
ret = -EACCES;
goto error_out;
}
@ -2226,7 +2226,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
UDF_PART_FLAG_READ_ONLY &&
!(sb->s_flags & MS_RDONLY)) {
!sb_rdonly(sb)) {
ret = -EACCES;
goto error_out;
}
@ -2245,7 +2245,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
le16_to_cpu(ts.year), ts.month, ts.day,
ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
}
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
udf_open_lvid(sb);
lvid_open = true;
}
@ -2332,7 +2332,7 @@ static void udf_put_super(struct super_block *sb)
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
unload_nls(sbi->s_nls_map);
#endif
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
udf_close_lvid(sb);
brelse(sbi->s_lvid_bh);
udf_sb_free_partitions(sb);

24
fs/ufs/super.c
View File

@ -278,7 +278,7 @@ void ufs_error (struct super_block * sb, const char * function,
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
usb1->fs_clean = UFS_FSBAD;
ubh_mark_buffer_dirty(USPI_UBH(uspi));
ufs_mark_sb_dirty(sb);
@ -312,7 +312,7 @@ void ufs_panic (struct super_block * sb, const char * function,
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
usb1->fs_clean = UFS_FSBAD;
ubh_mark_buffer_dirty(USPI_UBH(uspi));
ufs_mark_sb_dirty(sb);
@ -742,7 +742,7 @@ static void ufs_put_super(struct super_block *sb)
UFSD("ENTER\n");
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
ufs_put_super_internal(sb);
cancel_delayed_work_sync(&sbi->sync_work);
@ -793,7 +793,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
UFSD("ENTER\n");
#ifndef CONFIG_UFS_FS_WRITE
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
return -EROFS;
}
@ -805,7 +805,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_fs_info = sbi;
sbi->sb = sb;
UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
UFSD("flag %u\n", (int)(sb_rdonly(sb)));
mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
@ -902,7 +902,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_sbsize = super_block_size = 2048;
uspi->s_sbbase = 0;
flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!silent)
pr_info("ufstype=old is supported read-only\n");
sb->s_flags |= MS_RDONLY;
@ -918,7 +918,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_sbbase = 0;
uspi->s_dirblksize = 1024;
flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!silent)
pr_info("ufstype=nextstep is supported read-only\n");
sb->s_flags |= MS_RDONLY;
@ -934,7 +934,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_sbbase = 0;
uspi->s_dirblksize = 1024;
flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!silent)
pr_info("ufstype=nextstep-cd is supported read-only\n");
sb->s_flags |= MS_RDONLY;
@ -950,7 +950,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_sbbase = 0;
uspi->s_dirblksize = 1024;
flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!silent)
pr_info("ufstype=openstep is supported read-only\n");
sb->s_flags |= MS_RDONLY;
@ -965,7 +965,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_sbsize = super_block_size = 2048;
uspi->s_sbbase = 0;
flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
if (!(sb->s_flags & MS_RDONLY)) {
if (!sb_rdonly(sb)) {
if (!silent)
pr_info("ufstype=hp is supported read-only\n");
sb->s_flags |= MS_RDONLY;
@ -1273,7 +1273,7 @@ magic_found:
/*
* Read cylinder group structures
*/
if (!(sb->s_flags & MS_RDONLY))
if (!sb_rdonly(sb))
if (!ufs_read_cylinder_structures(sb))
goto failed;
@ -1328,7 +1328,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
if ((bool)(*mount_flags & MS_RDONLY) == sb_rdonly(sb)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;

10
fs/xfs/xfs_quotaops.c
View File

@ -125,7 +125,7 @@ xfs_fs_set_info(
struct xfs_mount *mp = XFS_M(sb);
struct qc_dqblk newlim;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
@ -175,7 +175,7 @@ xfs_quota_enable(
{
struct xfs_mount *mp = XFS_M(sb);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
@ -190,7 +190,7 @@ xfs_quota_disable(
{
struct xfs_mount *mp = XFS_M(sb);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
@ -208,7 +208,7 @@ xfs_fs_rm_xquota(
struct xfs_mount *mp = XFS_M(sb);
unsigned int flags = 0;
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
if (XFS_IS_QUOTA_ON(mp))
@ -279,7 +279,7 @@ xfs_fs_set_dqblk(
{
struct xfs_mount *mp = XFS_M(sb);
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
return -EROFS;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;

2
fs/xfs/xfs_super.c
View File

@ -210,7 +210,7 @@ xfs_parseargs(
/*
* Copy binary VFS mount flags we are interested in.
*/
if (sb->s_flags & MS_RDONLY)
if (sb_rdonly(sb))
mp->m_flags |= XFS_MOUNT_RDONLY;
if (sb->s_flags & MS_DIRSYNC)
mp->m_flags |= XFS_MOUNT_DIRSYNC;

48
include/linux/fs.h
View File

@ -1270,6 +1270,33 @@ extern void f_delown(struct file *filp);
extern pid_t f_getown(struct file *filp);
extern int send_sigurg(struct fown_struct *fown);
/*
* sb->s_flags. Note that these mirror the equivalent MS_* flags where
* represented in both.
*/
#define SB_RDONLY 1 /* Mount read-only */
#define SB_NOSUID 2 /* Ignore suid and sgid bits */
#define SB_NODEV 4 /* Disallow access to device special files */
#define SB_NOEXEC 8 /* Disallow program execution */
#define SB_SYNCHRONOUS 16 /* Writes are synced at once */
#define SB_MANDLOCK 64 /* Allow mandatory locks on an FS */
#define SB_DIRSYNC 128 /* Directory modifications are synchronous */
#define SB_NOATIME 1024 /* Do not update access times. */
#define SB_NODIRATIME 2048 /* Do not update directory access times */
#define SB_SILENT 32768
#define SB_POSIXACL (1<<16) /* VFS does not apply the umask */
#define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define SB_I_VERSION (1<<23) /* Update inode I_version field */
#define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
/* These sb flags are internal to the kernel */
#define SB_SUBMOUNT (1<<26)
#define SB_NOREMOTELOCK (1<<27)
#define SB_NOSEC (1<<28)
#define SB_BORN (1<<29)
#define SB_ACTIVE (1<<30)
#define SB_NOUSER (1<<31)
/*
* Umount options
*/
@ -1833,7 +1860,7 @@ struct super_operations {
* possible to override it selectively if you really wanted to with some
* ioctl() that is not currently implemented.
*
* Exception: MS_RDONLY is always applied to the entire file system.
* Exception: SB_RDONLY is always applied to the entire file system.
*
* Unfortunately, it is possible to change a filesystems flags with it mounted
* with files in use. This means that all of the inodes will not have their
@ -1842,19 +1869,20 @@ struct super_operations {
*/
#define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg))
#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY)
#define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \
static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; }
#define IS_RDONLY(inode) sb_rdonly((inode)->i_sb)
#define IS_SYNC(inode) (__IS_FLG(inode, SB_SYNCHRONOUS) || \
((inode)->i_flags & S_SYNC))
#define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
#define IS_DIRSYNC(inode) (__IS_FLG(inode, SB_SYNCHRONOUS|SB_DIRSYNC) || \
((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
#define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK)
#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
#define IS_MANDLOCK(inode) __IS_FLG(inode, SB_MANDLOCK)
#define IS_NOATIME(inode) __IS_FLG(inode, SB_RDONLY|SB_NOATIME)
#define IS_I_VERSION(inode) __IS_FLG(inode, SB_I_VERSION)
#define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA)
#define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
#define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE)
#define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL)
#define IS_POSIXACL(inode) __IS_FLG(inode, SB_POSIXACL)
#define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD)
#define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME)
@ -2175,7 +2203,7 @@ static inline int __mandatory_lock(struct inode *ino)
}
/*
* ... and these candidates should be on MS_MANDLOCK mounted fs,
* ... and these candidates should be on SB_MANDLOCK mounted fs,
* otherwise these will be advisory locks
*/
@ -3291,7 +3319,7 @@ static inline int check_sticky(struct inode *dir, struct inode *inode)
static inline void inode_has_no_xattr(struct inode *inode)
{
if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & MS_NOSEC))
if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & SB_NOSEC))
inode->i_flags |= S_NOSEC;
}

6
init/do_mounts.c
View File

@ -373,7 +373,7 @@ static int __init do_mount_root(char *name, char *fs, int flags, void *data)
printk(KERN_INFO
"VFS: Mounted root (%s filesystem)%s on device %u:%u.\n",
s->s_type->name,
s->s_flags & MS_RDONLY ? " readonly" : "",
sb_rdonly(s) ? " readonly" : "",
MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
return 0;
}
@ -420,8 +420,8 @@ retry:
#endif
panic("VFS: Unable to mount root fs on %s", b);
}
if (!(flags & MS_RDONLY)) {
flags |= MS_RDONLY;
if (!(flags & SB_RDONLY)) {
flags |= SB_RDONLY;
goto retry;
}