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| author | Jeff Layton <jlayton@redhat.com> | 2007-10-18 03:05:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:22 -0700 |
| commit | cdd6fe6e2f7eb8e940854317613885c33b1fe584 (patch) | |
| tree | e255e989145fe0147d602f36cab776864fb512d0 /fs/reiserfs | |
| parent | 8a0ce7d99a4d19788e017f3138bc59b9962057ae (diff) | |
| download | linux-cdd6fe6e2f7eb8e940854317613885c33b1fe584.tar.gz linux-cdd6fe6e2f7eb8e940854317613885c33b1fe584.tar.bz2 linux-cdd6fe6e2f7eb8e940854317613885c33b1fe584.zip | |
reiserfs: turn of ATTR_KILL_S*ID at beginning of reiserfs_setattr
reiserfs_setattr can call notify_change recursively using the same
iattr struct. This could cause it to trip the BUG() in notify_change.
Fix reiserfs to clear those bits near the beginning of the function.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: "Vladimir V. Saveliev" <vs@namesys.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/reiserfs')
| -rw-r--r-- | fs/reiserfs/inode.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 9ea12004fa57..0804289d355d 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -3061,7 +3061,11 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; int error; - unsigned int ia_valid = attr->ia_valid; + unsigned int ia_valid; + + /* must be turned off for recursive notify_change calls */ + ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); + reiserfs_write_lock(inode->i_sb); if (attr->ia_valid & ATTR_SIZE) { /* version 2 items will be caught by the s_maxbytes check |