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Mostly cleanups, but three bug fixes:

Browse Source 
1. don't pass garbage return codes back up the call chain (Mike Marshall)
 
  2. fix stale inode test (Martin Brandenburg)
 
  3. fix off-by-one errors (Xiongfeng Wang)
 
 Also: add Martin as a reviewer in the Maintainers file.
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Merge tag 'for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "Mostly cleanups, but three bug fixes:

   - don't pass garbage return codes back up the call chain (Mike
     Marshall)

   - fix stale inode test (Martin Brandenburg)

   - fix off-by-one errors (Xiongfeng Wang)

  Also add Martin as a reviewer in the Maintainers file"

* tag 'for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: reverse sense of is-inode-stale test in d_revalidate
  orangefs: simplify orangefs_inode_is_stale
  Orangefs: don't propogate whacky error codes
  orangefs: use correct string length
  orangefs: make orangefs_make_bad_inode static
  orangefs: remove ORANGEFS_KERNEL_DEBUG
  orangefs: remove gossip_ldebug and gossip_lerr
  orangefs: make orangefs_client_debug_init static
  MAINTAINERS: update orangefs list and add myself as reviewer
This commit is contained in:
Linus Torvalds 2018-02-08 12:20:41 -08:00
commit a0f79386a4
9 changed files with 76 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
MAINTAINERS
View File

@ -10331,7 +10331,8 @@ F: fs/ocfs2/
ORANGEFS FILESYSTEM
M: Mike Marshall <hubcap@omnibond.com>
L: pvfs2-developers@beowulf-underground.org (subscribers-only)
R: Martin Brandenburg <martin@omnibond.com>
L: devel@lists.orangefs.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git
S: Supported
F: fs/orangefs/

19
fs/orangefs/dcache.c
View File

@ -33,7 +33,7 @@ static int orangefs_revalidate_lookup(struct dentry *dentry)
new_op->upcall.req.lookup.parent_refn = parent->refn;
strncpy(new_op->upcall.req.lookup.d_name,
dentry->d_name.name,
ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
gossip_debug(GOSSIP_DCACHE_DEBUG,
"%s:%s:%d interrupt flag [%d]\n",
@ -118,8 +118,12 @@ static int orangefs_d_revalidate(struct dentry *dentry, unsigned int flags)
return 0;
/* We do not need to continue with negative dentries. */
if (!dentry->d_inode)
goto out;
if (!dentry->d_inode) {
gossip_debug(GOSSIP_DCACHE_DEBUG,
"%s: negative dentry or positive dentry and inode valid.\n",
__func__);
return 1;
}
/* Now we must perform a getattr to validate the inode contents. */
@ -129,14 +133,7 @@ static int orangefs_d_revalidate(struct dentry *dentry, unsigned int flags)
__FILE__, __func__, __LINE__);
return 0;
}
if (ret == 0)
return 0;
out:
gossip_debug(GOSSIP_DCACHE_DEBUG,
"%s: negative dentry or positive dentry and inode valid.\n",
__func__);
return 1;
return !ret;
}
const struct dentry_operations orangefs_dentry_operations = {

16
fs/orangefs/namei.c
View File

@ -41,7 +41,7 @@ static int orangefs_create(struct inode *dir,
ORANGEFS_TYPE_METAFILE, mode);
strncpy(new_op->upcall.req.create.d_name,
dentry->d_name.name, ORANGEFS_NAME_MAX);
dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
@ -142,7 +142,7 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
new_op->upcall.req.lookup.parent_refn = parent->refn;
strncpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name,
ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: doing lookup on %s under %pU,%d\n",
@ -244,7 +244,7 @@ static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
new_op->upcall.req.remove.parent_refn = parent->refn;
strncpy(new_op->upcall.req.remove.d_name, dentry->d_name.name,
ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
ret = service_operation(new_op, "orangefs_unlink",
get_interruptible_flag(inode));
@ -300,8 +300,8 @@ static int orangefs_symlink(struct inode *dir,
strncpy(new_op->upcall.req.sym.entry_name,
dentry->d_name.name,
ORANGEFS_NAME_MAX);
strncpy(new_op->upcall.req.sym.target, symname, ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
strncpy(new_op->upcall.req.sym.target, symname, ORANGEFS_NAME_MAX - 1);
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
@ -372,7 +372,7 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
ORANGEFS_TYPE_DIRECTORY, mode);
strncpy(new_op->upcall.req.mkdir.d_name,
dentry->d_name.name, ORANGEFS_NAME_MAX);
dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
@ -453,10 +453,10 @@ static int orangefs_rename(struct inode *old_dir,
strncpy(new_op->upcall.req.rename.d_old_name,
old_dentry->d_name.name,
ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
strncpy(new_op->upcall.req.rename.d_new_name,
new_dentry->d_name.name,
ORANGEFS_NAME_MAX);
ORANGEFS_NAME_MAX - 1);
ret = service_operation(new_op,
"orangefs_rename",

4
fs/orangefs/orangefs-debugfs.c
View File

@ -328,7 +328,7 @@ static int help_show(struct seq_file *m, void *v)
/*
* initialize the client-debug file.
*/
int orangefs_client_debug_init(void)
static int orangefs_client_debug_init(void)
{
int rc = -ENOMEM;
@ -1056,7 +1056,7 @@ int orangefs_debugfs_new_debug(void __user *arg)
client_debug_string,
llu(mask_info.mask_value));
} else {
gossip_lerr("Invalid mask type....\n");
gossip_err("Invalid mask type....\n");
return -EINVAL;
}

1
fs/orangefs/orangefs-debugfs.h
View File

@ -1,7 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
int orangefs_debugfs_init(int);
void orangefs_debugfs_cleanup(void);
int orangefs_client_debug_init(void);
int orangefs_prepare_debugfs_help_string(int);
int orangefs_debugfs_new_client_mask(void __user *);
int orangefs_debugfs_new_client_string(void __user *);

10
fs/orangefs/orangefs-kernel.h
View File

@ -56,11 +56,7 @@
#include "orangefs-dev-proto.h"
#ifdef ORANGEFS_KERNEL_DEBUG
#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 10
#else
#define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20
#endif
#define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30
@ -104,11 +100,11 @@ enum orangefs_vfs_op_states {
* orangefs kernel memory related flags
*/
#if ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB))
#if (defined CONFIG_DEBUG_SLAB)
#define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE
#else
#define ORANGEFS_CACHE_CREATE_FLAGS 0
#endif /* ((defined ORANGEFS_KERNEL_DEBUG) && (defined CONFIG_DEBUG_SLAB)) */
#endif
extern int orangefs_init_acl(struct inode *inode, struct inode *dir);
extern const struct xattr_handler *orangefs_xattr_handlers[];
@ -471,8 +467,6 @@ int orangefs_inode_check_changed(struct inode *inode);
int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr);
void orangefs_make_bad_inode(struct inode *inode);
int orangefs_unmount_sb(struct super_block *sb);
bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op);

93
fs/orangefs/orangefs-utils.c
View File

@ -230,25 +230,42 @@ static int orangefs_inode_type(enum orangefs_ds_type objtype)
return -1;
}
static int orangefs_inode_is_stale(struct inode *inode, int new,
static void orangefs_make_bad_inode(struct inode *inode)
{
if (is_root_handle(inode)) {
/*
* if this occurs, the pvfs2-client-core was killed but we
* can't afford to lose the inode operations and such
* associated with the root handle in any case.
*/
gossip_debug(GOSSIP_UTILS_DEBUG,
"*** NOT making bad root inode %pU\n",
get_khandle_from_ino(inode));
} else {
gossip_debug(GOSSIP_UTILS_DEBUG,
"*** making bad inode %pU\n",
get_khandle_from_ino(inode));
make_bad_inode(inode);
}
}
static int orangefs_inode_is_stale(struct inode *inode,
struct ORANGEFS_sys_attr_s *attrs, char *link_target)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
int type = orangefs_inode_type(attrs->objtype);
if (!new) {
/*
* If the inode type or symlink target have changed then this
* inode is stale.
*/
if (type == -1 || !(inode->i_mode & type)) {
orangefs_make_bad_inode(inode);
return 1;
}
if (type == S_IFLNK && strncmp(orangefs_inode->link_target,
link_target, ORANGEFS_NAME_MAX)) {
orangefs_make_bad_inode(inode);
return 1;
}
/*
* If the inode type or symlink target have changed then this
* inode is stale.
*/
if (type == -1 || !(inode->i_mode & type)) {
orangefs_make_bad_inode(inode);
return 1;
}
if (type == S_IFLNK && strncmp(orangefs_inode->link_target,
link_target, ORANGEFS_NAME_MAX)) {
orangefs_make_bad_inode(inode);
return 1;
}
return 0;
}
@ -294,16 +311,18 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
if (ret != 0)
goto out;
type = orangefs_inode_type(new_op->
downcall.resp.getattr.attributes.objtype);
ret = orangefs_inode_is_stale(inode, new,
&new_op->downcall.resp.getattr.attributes,
new_op->downcall.resp.getattr.link_target);
if (ret) {
ret = -ESTALE;
goto out;
if (!new) {
ret = orangefs_inode_is_stale(inode,
&new_op->downcall.resp.getattr.attributes,
new_op->downcall.resp.getattr.link_target);
if (ret) {
ret = -ESTALE;
goto out;
}
}
type = orangefs_inode_type(new_op->
downcall.resp.getattr.attributes.objtype);
switch (type) {
case S_IFREG:
inode->i_flags = orangefs_inode_flags(&new_op->
@ -348,6 +367,12 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
inode->i_link = orangefs_inode->link_target;
}
break;
/* i.e. -1 */
default:
/* XXX: ESTALE? This is what is done if it is not new. */
orangefs_make_bad_inode(inode);
ret = -ESTALE;
goto out;
}
inode->i_uid = make_kuid(&init_user_ns, new_op->
@ -401,7 +426,7 @@ int orangefs_inode_check_changed(struct inode *inode)
if (ret != 0)
goto out;
ret = orangefs_inode_is_stale(inode, 0,
ret = orangefs_inode_is_stale(inode,
&new_op->downcall.resp.getattr.attributes,
new_op->downcall.resp.getattr.link_target);
out:
@ -444,25 +469,6 @@ int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
return ret;
}
void orangefs_make_bad_inode(struct inode *inode)
{
if (is_root_handle(inode)) {
/*
* if this occurs, the pvfs2-client-core was killed but we
* can't afford to lose the inode operations and such
* associated with the root handle in any case.
*/
gossip_debug(GOSSIP_UTILS_DEBUG,
"*** NOT making bad root inode %pU\n",
get_khandle_from_ino(inode));
} else {
gossip_debug(GOSSIP_UTILS_DEBUG,
"*** making bad inode %pU\n",
get_khandle_from_ino(inode));
make_bad_inode(inode);
}
}
/*
* The following is a very dirty hack that is now a permanent part of the
* ORANGEFS protocol. See protocol.h for more error definitions.
@ -537,6 +543,7 @@ int orangefs_normalize_to_errno(__s32 error_code)
*/
} else {
gossip_err("orangefs: orangefs_normalize_to_errno: got error code which is not from ORANGEFS.\n");
error_code = -EINVAL;
}
return error_code;
}

15
fs/orangefs/protocol.h
View File

@ -395,13 +395,6 @@ struct ORANGEFS_dev_map_desc {
/* gossip.h *****************************************************************/
#ifdef GOSSIP_DISABLE_DEBUG
#define gossip_debug(mask, fmt, ...) \
do { \
if (0) \
printk(KERN_DEBUG fmt, ##__VA_ARGS__); \
} while (0)
#else
extern __u64 orangefs_gossip_debug_mask;
/* try to avoid function call overhead by checking masks in macro */
@ -410,13 +403,5 @@ do { \
if (orangefs_gossip_debug_mask & (mask)) \
printk(KERN_DEBUG fmt, ##__VA_ARGS__); \
} while (0)
#endif /* GOSSIP_DISABLE_DEBUG */
/* do file and line number printouts w/ the GNU preprocessor */
#define gossip_ldebug(mask, fmt, ...) \
gossip_debug(mask, "%s: " fmt, __func__, ##__VA_ARGS__)
#define gossip_err pr_err
#define gossip_lerr(fmt, ...) \
gossip_err("%s line %d: " fmt, \
__FILE__, __LINE__, ##__VA_ARGS__)

8
fs/orangefs/super.c
View File

@ -335,7 +335,7 @@ static int orangefs_encode_fh(struct inode *inode,
struct orangefs_object_kref refn;
if (*max_len < len) {
gossip_lerr("fh buffer is too small for encoding\n");
gossip_err("fh buffer is too small for encoding\n");
*max_len = len;
type = 255;
goto out;
@ -383,7 +383,7 @@ static int orangefs_unmount(int id, __s32 fs_id, const char *devname)
op->upcall.req.fs_umount.id = id;
op->upcall.req.fs_umount.fs_id = fs_id;
strncpy(op->upcall.req.fs_umount.orangefs_config_server,
devname, ORANGEFS_MAX_SERVER_ADDR_LEN);
devname, ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
r = service_operation(op, "orangefs_fs_umount", 0);
/* Not much to do about an error here. */
if (r)
@ -478,7 +478,7 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
strncpy(new_op->upcall.req.fs_mount.orangefs_config_server,
devname,
ORANGEFS_MAX_SERVER_ADDR_LEN);
ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
gossip_debug(GOSSIP_SUPER_DEBUG,
"Attempting ORANGEFS Mount via host %s\n",
@ -520,7 +520,7 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
*/
strncpy(ORANGEFS_SB(sb)->devname,
devname,
ORANGEFS_MAX_SERVER_ADDR_LEN);
ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
/* mount_pending must be cleared */
ORANGEFS_SB(sb)->mount_pending = 0;