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| author | Jeff Mahoney <jeffm@suse.com> | 2009-05-17 01:02:02 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-17 11:45:45 -0700 |
| commit | ceb5edc457f07956c82dccfb54ca8ae7e2a399f0 (patch) | |
| tree | 0b58e5a5e359090e47583ec0b49e7b29af0b2179 | |
| parent | 12abb35a03e32c97235fcefdcf2d851be9f82dc2 (diff) | |
| download | linux-3.10-ceb5edc457f07956c82dccfb54ca8ae7e2a399f0.tar.gz linux-3.10-ceb5edc457f07956c82dccfb54ca8ae7e2a399f0.tar.bz2 linux-3.10-ceb5edc457f07956c82dccfb54ca8ae7e2a399f0.zip | |
reiserfs: deal with NULL xattr root w/ xattrs disabled
This avoids an Oops in open_xa_root that can occur when deleting a file
with xattrs disabled. It assumes that the xattr root will be there, and
that is not guaranteed.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/reiserfs/super.c | 2 | ||||
| -rw-r--r-- | fs/reiserfs/xattr.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 1215a4f50cd..3567fb9e3fb 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -448,13 +448,11 @@ int remove_save_link(struct inode *inode, int truncate) static void reiserfs_kill_sb(struct super_block *s) { if (REISERFS_SB(s)) { -#ifdef CONFIG_REISERFS_FS_XATTR if (REISERFS_SB(s)->xattr_root) { d_invalidate(REISERFS_SB(s)->xattr_root); dput(REISERFS_SB(s)->xattr_root); REISERFS_SB(s)->xattr_root = NULL; } -#endif if (REISERFS_SB(s)->priv_root) { d_invalidate(REISERFS_SB(s)->priv_root); dput(REISERFS_SB(s)->priv_root); diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index cf949646dd5..628075ca82c 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -123,7 +123,9 @@ static struct dentry *open_xa_root(struct super_block *sb, int flags) mutex_lock_nested(&privroot->d_inode->i_mutex, I_MUTEX_XATTR); xaroot = dget(REISERFS_SB(sb)->xattr_root); - if (!xaroot->d_inode) { + if (!xaroot) + xaroot = ERR_PTR(-ENODATA); + else if (!xaroot->d_inode) { int err = -ENODATA; if (xattr_may_create(flags)) err = xattr_mkdir(privroot->d_inode, xaroot, 0700); |