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xfs: kill xfs_itruncate_start

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xfs_itruncate_start is a rather length wrapper that evaluates to a call
to xfs_ioend_wait and xfs_tosspages, and only has two callers.

Instead of using the complicated checks left over from IRIX where we
can to truncate the pagecache just call xfs_tosspages
(aka truncate_inode_pages) directly as we want to get rid of all data
after i_size, and truncate_inode_pages handles incorrect alignments
and too large offsets just fine.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Christoph Hellwig
2011-07-08 14:34:30 +02:00
parent 681b120018
commit 857b9778d8
4 changed files with 4 additions and 231 deletions
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11
fs/xfs/xfs_inode.h
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@@ -457,16 +457,6 @@ static inline void xfs_ifunlock(xfs_inode_t *ip)
extern struct lock_class_key xfs_iolock_reclaimable;
/*
* Flags for xfs_itruncate_start().
*/
#define XFS_ITRUNC_DEFINITE 0x1
#define XFS_ITRUNC_MAYBE 0x2
#define XFS_ITRUNC_FLAGS \
{ XFS_ITRUNC_DEFINITE, "DEFINITE" }, \
{ XFS_ITRUNC_MAYBE, "MAYBE" }
/*
* For multiple groups support: if S_ISGID bit is set in the parent
* directory, group of new file is set to that of the parent, and
@@ -501,7 +491,6 @@ uint xfs_ip2xflags(struct xfs_inode *);
uint xfs_dic2xflags(struct xfs_dinode *);
int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
struct xfs_bmap_free *);
int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
xfs_fsize_t, int, int);
int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);