diff options
| author | Patrick Farrell <paf@cray.com> | 2013-07-23 00:07:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-23 13:45:08 -0700 |
| commit | 4c2060a8942223ee91764736439085d586538f24 (patch) | |
| tree | 037db63a182292a2361a95b7abe2f7e9c5d15655 /drivers | |
| parent | cb6a2db640d94a9dc29dabb9bf58d4ff2531d42c (diff) | |
staging/lustre/llite: Anonymous dentry incorrectly identified as root
When exporting Lustre via NFS on SLES11SP2, this check incorrectly identifies
anonymous dentries as root dentries. This is due to a change in SLES11SP2
which makes the d_name.name for anonymous dentries the same as that for root
dentries. (Details in LU-3484.)
This changes the check to directly compare the value of the dentry pointer
to the root dentry pointer found in the superblock, rather than using the name.
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3484
Lustre-change: http://review.whamcloud.com/6726
Signed-off-by: Patrick Farrell <paf@cray.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Peng Tao <bergwolf@gmail.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Alexey Shvetsov <alexxy@gentoo.org>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/dcache.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c index a160a840d582..0d49e1bfb6bb 100644 --- a/drivers/staging/lustre/lustre/llite/dcache.c +++ b/drivers/staging/lustre/lustre/llite/dcache.c @@ -295,9 +295,10 @@ void ll_invalidate_aliases(struct inode *inode) dentry->d_name.name, dentry, dentry->d_parent, dentry->d_inode, dentry->d_flags); - if (dentry->d_name.len == 1 && dentry->d_name.name[0] == '/') { - CERROR("called on root (?) dentry=%p, inode=%p " - "ino=%lu\n", dentry, inode, inode->i_ino); + if (unlikely(dentry == dentry->d_sb->s_root)) { + CERROR("%s: called on root dentry=%p, fid="DFID"\n", + ll_get_fsname(dentry->d_sb, NULL, 0), + dentry, PFID(ll_inode2fid(inode))); lustre_dump_dentry(dentry, 1); dump_stack(); } |