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Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes

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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Use DEFINE_SPINLOCK
  GFS2: cleanup file_operations mess
  GFS2: Move umount flush rwsem
  GFS2: Fix symlink creation race
  GFS2: Make quotad's waiting interruptible
This commit is contained in:
Linus Torvalds 2009-04-15 09:04:12 -07:00
commit a2c252ebde
6 changed files with 24 additions and 21 deletions
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10
fs/gfs2/glock.c
View File

@ -597,7 +597,6 @@ __acquires(&gl->gl_spin)
GLOCK_BUG_ON(gl, test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags));
down_read(&gfs2_umount_flush_sem);
if (test_bit(GLF_DEMOTE, &gl->gl_flags) &&
gl->gl_demote_state != gl->gl_state) {
if (find_first_holder(gl))
@ -614,15 +613,14 @@ __acquires(&gl->gl_spin)
if (ret == 0)
goto out_unlock;
if (ret == 2)
goto out_sem;
goto out;
gh = find_first_waiter(gl);
gl->gl_target = gh->gh_state;
if (!(gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
do_error(gl, 0); /* Fail queued try locks */
}
do_xmote(gl, gh, gl->gl_target);
out_sem:
up_read(&gfs2_umount_flush_sem);
out:
return;
out_sched:
@ -631,7 +629,7 @@ out_sched:
gfs2_glock_put(gl);
out_unlock:
clear_bit(GLF_LOCK, &gl->gl_flags);
goto out_sem;
goto out;
}
static void glock_work_func(struct work_struct *work)
@ -641,6 +639,7 @@ static void glock_work_func(struct work_struct *work)
if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags))
finish_xmote(gl, gl->gl_reply);
down_read(&gfs2_umount_flush_sem);
spin_lock(&gl->gl_spin);
if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
gl->gl_state != LM_ST_UNLOCKED &&
@ -653,6 +652,7 @@ static void glock_work_func(struct work_struct *work)
}
run_queue(gl, 0);
spin_unlock(&gl->gl_spin);
up_read(&gfs2_umount_flush_sem);
if (!delay ||
queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
gfs2_glock_put(gl);

8
fs/gfs2/inode.c
View File

@ -137,15 +137,15 @@ void gfs2_set_iop(struct inode *inode)
if (S_ISREG(mode)) {
inode->i_op = &gfs2_file_iops;
if (gfs2_localflocks(sdp))
inode->i_fop = gfs2_file_fops_nolock;
inode->i_fop = &gfs2_file_fops_nolock;
else
inode->i_fop = gfs2_file_fops;
inode->i_fop = &gfs2_file_fops;
} else if (S_ISDIR(mode)) {
inode->i_op = &gfs2_dir_iops;
if (gfs2_localflocks(sdp))
inode->i_fop = gfs2_dir_fops_nolock;
inode->i_fop = &gfs2_dir_fops_nolock;
else
inode->i_fop = gfs2_dir_fops;
inode->i_fop = &gfs2_dir_fops;
} else if (S_ISLNK(mode)) {
inode->i_op = &gfs2_symlink_iops;
} else {

14
fs/gfs2/inode.h
View File

@ -101,21 +101,23 @@ void gfs2_dinode_print(const struct gfs2_inode *ip);
extern const struct inode_operations gfs2_file_iops;
extern const struct inode_operations gfs2_dir_iops;
extern const struct inode_operations gfs2_symlink_iops;
extern const struct file_operations *gfs2_file_fops_nolock;
extern const struct file_operations *gfs2_dir_fops_nolock;
extern const struct file_operations gfs2_file_fops_nolock;
extern const struct file_operations gfs2_dir_fops_nolock;
extern void gfs2_set_inode_flags(struct inode *inode);
#ifdef CONFIG_GFS2_FS_LOCKING_DLM
extern const struct file_operations *gfs2_file_fops;
extern const struct file_operations *gfs2_dir_fops;
extern const struct file_operations gfs2_file_fops;
extern const struct file_operations gfs2_dir_fops;
static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
{
return sdp->sd_args.ar_localflocks;
}
#else /* Single node only */
#define gfs2_file_fops NULL
#define gfs2_dir_fops NULL
#define gfs2_file_fops gfs2_file_fops_nolock
#define gfs2_dir_fops gfs2_dir_fops_nolock
static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
{
return 1;

8
fs/gfs2/ops_file.c
View File

@ -705,7 +705,7 @@ static int gfs2_flock(struct file *file, int cmd, struct file_lock *fl)
}
}
const struct file_operations *gfs2_file_fops = &(const struct file_operations){
const struct file_operations gfs2_file_fops = {
.llseek = gfs2_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
@ -723,7 +723,7 @@ const struct file_operations *gfs2_file_fops = &(const struct file_operations){
.setlease = gfs2_setlease,
};
const struct file_operations *gfs2_dir_fops = &(const struct file_operations){
const struct file_operations gfs2_dir_fops = {
.readdir = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
@ -735,7 +735,7 @@ const struct file_operations *gfs2_dir_fops = &(const struct file_operations){
#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
const struct file_operations *gfs2_file_fops_nolock = &(const struct file_operations){
const struct file_operations gfs2_file_fops_nolock = {
.llseek = gfs2_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
@ -751,7 +751,7 @@ const struct file_operations *gfs2_file_fops_nolock = &(const struct file_operat
.setlease = generic_setlease,
};
const struct file_operations *gfs2_dir_fops_nolock = &(const struct file_operations){
const struct file_operations gfs2_dir_fops_nolock = {
.readdir = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,

1
fs/gfs2/ops_inode.c
View File

@ -371,6 +371,7 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
ip = ghs[1].gh_gl->gl_object;
ip->i_disksize = size;
i_size_write(inode, size);
error = gfs2_meta_inode_buffer(ip, &dibh);

4
fs/gfs2/quota.c
View File

@ -81,7 +81,7 @@ struct gfs2_quota_change_host {
static LIST_HEAD(qd_lru_list);
static atomic_t qd_lru_count = ATOMIC_INIT(0);
static spinlock_t qd_lru_lock = SPIN_LOCK_UNLOCKED;
static DEFINE_SPINLOCK(qd_lru_lock);
int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask)
{
@ -1364,7 +1364,7 @@ int gfs2_quotad(void *data)
refrigerator();
t = min(quotad_timeo, statfs_timeo);
prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_UNINTERRUPTIBLE);
prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_INTERRUPTIBLE);
spin_lock(&sdp->sd_trunc_lock);
empty = list_empty(&sdp->sd_trunc_list);
spin_unlock(&sdp->sd_trunc_lock);