aboutsummaryrefslogtreecommitdiffstats
path: root/fs/hugetlbfs
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2010-02-19 13:14:21 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2010-02-20 10:06:35 -0500
commit8f9941aeccc318f243ab3fa55aaa17f4c1cb33f9 (patch)
treea18890c2ace7ffde0682e29c58230ffc1fcdde15 /fs/hugetlbfs
parentaeaa5ccd6421fbf9e7ded0ac67b12ea2b9fcf51e (diff)
CacheFiles: Fix a race in cachefiles_delete_object() vs rename
cachefiles_delete_object() can race with rename. It gets the parent directory of the object it's asked to delete, then locks it - but rename may have changed the object's parent between the get and the completion of the lock. However, if such a circumstance is detected, we abandon our attempt to delete the object - since it's no longer in the index key path, it won't be seen again by lookups of that key. The assumption is that cachefilesd may have culled it by renaming it to the graveyard for later destruction. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/hugetlbfs')
0 files changed, 0 insertions, 0 deletions