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authorJan Kara <jack@suse.cz>2014-10-30 10:35:00 +1100
committerBen Hutchings <ben@decadent.org.uk>2014-12-14 16:24:01 +0000
commit9b0899aa3d6f6a65ac3af131193be792e29373e9 (patch)
parentb955a6aa610cc33e208129b3991deaf624b09594 (diff)
mm: Remove false WARN_ON from pagecache_isize_extended()
commit f55fefd1a5a339b1bd08c120b93312d6eb64a9fb upstream. The WARN_ON checking whether i_mutex is held in pagecache_isize_extended() was wrong because some filesystems (e.g. XFS) use different locks for serialization of truncates / writes. So just remove the check. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index ef13a0753996..143883a59046 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -608,7 +608,6 @@ void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
struct page *page;
pgoff_t index;
- WARN_ON(!mutex_is_locked(&inode->i_mutex));
WARN_ON(to > inode->i_size);
if (from >= to || bsize == PAGE_CACHE_SIZE)