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author | NeilBrown <neilb@suse.de> | 2012-11-08 16:09:37 -0800 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:49:10 -0500 |
commit | b911a6bdeef5848c468597d040e3407e0aee04ce (patch) | |
tree | 5c71c9c5078634a398d3f0e739e2d8dce732d194 /mm/vmscan.c | |
parent | 471667391a92bf7bf2cd4ff31a3ad88e5dec934b (diff) | |
download | op-kernel-dev-b911a6bdeef5848c468597d040e3407e0aee04ce.zip op-kernel-dev-b911a6bdeef5848c468597d040e3407e0aee04ce.tar.gz |
vfs: d_obtain_alias() needs to use "/" as default name.
NFS appears to use d_obtain_alias() to create the root dentry rather than
d_make_root. This can cause 'prepend_path()' to complain that the root
has a weird name if an NFS filesystem is lazily unmounted. e.g. if
"/mnt" is an NFS mount then
{ cd /mnt; umount -l /mnt ; ls -l /proc/self/cwd; }
will cause a WARN message like
WARNING: at /home/git/linux/fs/dcache.c:2624 prepend_path+0x1d7/0x1e0()
...
Root dentry has weird name <>
to appear in kernel logs.
So change d_obtain_alias() to use "/" rather than "" as the anonymous
name.
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions