commit 21c3ea18819b5f650c75f59a0457415bc05d2b17
author Christoph Hellwig <hch@lst.de> Mon Apr 13 11:38:29 2015 +1000
committer Dave Chinner <david@fromorbit.com> Mon Apr 13 11:38:29 2015 +1000
tree 4a6ffaa3bed47bc57441c3ffe9d2f1e55a8b197d
parent 66db8104968ad8c0bf5a45a100ae586ddfadc1e1

xfs: unlock i_mutex in xfs_break_layouts

We want to drop all I/O path locks when recalling layouts, and that includes
i_mutex for the write path.  Without this we get stuck processe when recalls
take too long.

[dchinner: fix build with !CONFIG_PNFS]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

fs/xfs/xfs_pnfs.h

diff --git a/fs/xfs/xfs_pnfs.h b/fs/xfs/xfs_pnfs.h
index b7fbfce..8147ac1 100644
--- a/fs/xfs/xfs_pnfs.h
+++ b/fs/xfs/xfs_pnfs.h
@@ -8,9 +8,10 @@
 int xfs_fs_commit_blocks(struct inode *inode, struct iomap *maps, int nr_maps,
 		struct iattr *iattr);
 
-int xfs_break_layouts(struct inode *inode, uint *iolock);
+int xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex);
 #else
-static inline int xfs_break_layouts(struct inode *inode, uint *iolock)
+static inline int
+xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex)
 {
 	return 0;
 }