>From de3426d6495f4b44b14c09b7c7202e9a86d864b9 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 16 Oct 2014 12:58:42 +0200 Subject: [PATCH] mm: Remove false WARN_ON from pagecache_isize_extended() 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 --- mm/truncate.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/truncate.c b/mm/truncate.c index 261eaf6e5a19..c646084e5eec 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -755,7 +755,6 @@ 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) -- 1.8.1.4