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| author | Jan Kara <jack@suse.cz> | 2014-10-30 10:35:00 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-14 09:00:11 -0800 |
| commit | da357d7aab5e47f5a9bd806980f4cbb1e76f523d (patch) | |
| tree | 8df7bcadb9ba7ad5a6f8d4fc7297fee0060249d6 /mm | |
| parent | 09eea6d2a92e092897d6767988e21186d2ed781e (diff) | |
| download | lwn-da357d7aab5e47f5a9bd806980f4cbb1e76f523d.tar.gz lwn-da357d7aab5e47f5a9bd806980f4cbb1e76f523d.zip | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/truncate.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 855c38cd09be..ac18edc30649 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -649,7 +649,6 @@ 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) |