diff options
| author | Jan Kara <jack@suse.cz> | 2014-10-30 10:35:00 +1100 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-02-02 17:05:24 +0800 |
| commit | 66cc8f8440666b4ef0996ec76d9a208f5b54970f (patch) | |
| tree | bcae66ac84c2d10174c528fd0c9299fb93fa696c | |
| parent | cadd269d90b521f43fb0717439a2f252e2f27fcd (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: Zefan Li <lizefan@huawei.com>
| -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 708a499c49a8..57625f7ed8e1 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -607,7 +607,6 @@ 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) |