Commit 77783d06 authored by Jan Kara's avatar Jan Kara Committed by Dave Chinner

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: default avatarJan Beulich <JBeulich@suse.com>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent 5d11fb4b
......@@ -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)
{
......
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