From: Jan Kara Date: Thu, 6 Nov 2014 21:29:25 +0000 (+1100) Subject: mm: Fix comment before truncate_setsize() X-Git-Tag: v3.18-rc4~13^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=77783d06427293b2d711c45cfd4abc6494a1af9c;p=profile%2Fcommon%2Fplatform%2Fkernel%2Flinux-artik7.git mm: Fix comment before truncate_setsize() XFS doesn't always hold i_mutex when calling truncate_setsize() and it uses a different lock to serialize truncates and writes. So fix the comment before truncate_setsize(). Reported-by: Jan Beulich Signed-off-by: Jan Kara Signed-off-by: Dave Chinner --- diff --git a/mm/truncate.c b/mm/truncate.c index c646084..f1e4d60 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -715,8 +715,9 @@ EXPORT_SYMBOL(truncate_pagecache); * necessary) to @newsize. It will be typically be called from the filesystem's * setattr function when ATTR_SIZE is passed in. * - * Must be called with inode_mutex held and before all filesystem specific - * block truncation has been performed. + * Must be called with a lock serializing truncates and writes (generally + * i_mutex but e.g. xfs uses a different lock) and before all filesystem + * specific block truncation has been performed. */ void truncate_setsize(struct inode *inode, loff_t newsize) {