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Commit bcec2b7f authored by Nathan Scott's avatar Nathan Scott
Browse files

[XFS] Add a chunk of tracing code to diagnose truncate related issues. 



SGI-PV: 938410
SGI-Modid: xfs-linux:xfs-kern:22966a

Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent eedb5530

fs/xfs/linux-2.6/xfs_aops.c

+11 −0
Original line number Diff line number Diff line
@@ -1202,6 +1202,16 @@ out_unlock: 
	return error;

}



STATIC int

linvfs_invalidate_page(

	struct page		*page,

	unsigned long		offset)

{

	xfs_page_trace(XFS_INVALIDPAGE_ENTER,

			page->mapping->host, page, offset);

	return block_invalidatepage(page, offset);

}



/*

 * Called to move a page into cleanable state - and from there

 * to be released. Possibly the page is already clean. We always
@@ -1279,6 +1289,7 @@ struct address_space_operations linvfs_aops = { 
	.writepage		= linvfs_writepage,

	.sync_page		= block_sync_page,

	.releasepage		= linvfs_release_page,

	.invalidatepage		= linvfs_invalidate_page,

	.prepare_write		= linvfs_prepare_write,

	.commit_write		= generic_commit_write,

	.bmap			= linvfs_bmap,

fs/xfs/linux-2.6/xfs_lrw.h

+4 −3
Original line number Diff line number Diff line
@@ -70,9 +70,10 @@ struct xfs_iomap; 
#define	XFS_SENDFILE_ENTER	21

#define	XFS_WRITEPAGE_ENTER	22

#define	XFS_RELEASEPAGE_ENTER	23

#define	XFS_IOMAP_ALLOC_ENTER	24

#define	XFS_IOMAP_ALLOC_MAP	25

#define	XFS_IOMAP_UNWRITTEN	26

#define	XFS_INVALIDPAGE_ENTER	24

#define	XFS_IOMAP_ALLOC_ENTER	25

#define	XFS_IOMAP_ALLOC_MAP	26

#define	XFS_IOMAP_UNWRITTEN	27

extern void xfs_rw_enter_trace(int, struct xfs_iocore *,

				void *, size_t, loff_t, int);

extern void xfs_inval_cached_trace(struct xfs_iocore *,