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xfs: cleanup the xfs_iomap_write_* helpers 

Remove passing the BMAPI_* flags to these helpers, in
xfs_iomap_write_direct the check BMAPI_DIRECT was always true, and
in the xfs_iomap_write_delay path is was never checked at all.
Remove the nmap return value as we never make use of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2010-12-10 08:42:19 +00:00 committed by Alex Elder
parent 6ac7248ec5
commit 405f804294
1 changed files with 15 additions and 30 deletions
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45
fs/xfs/xfs_iomap.c
View File

@ -51,11 +51,11 @@
#define XFS_WRITE_IMAPS XFS_BMAP_MAX_NMAP
STATIC int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
int, struct xfs_bmbt_irec *, int *);
STATIC int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t, int,
struct xfs_bmbt_irec *, int *);
struct xfs_bmbt_irec *, int);
STATIC int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t,
struct xfs_bmbt_irec *);
STATIC int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t, size_t,
struct xfs_bmbt_irec *, int *);
struct xfs_bmbt_irec *);
int
xfs_iomap(
@ -134,12 +134,12 @@ xfs_iomap(
}
if (flags & BMAPI_DIRECT) {
error = xfs_iomap_write_direct(ip, offset, count, flags,
imap, nimaps);
error = xfs_iomap_write_direct(ip, offset, count, imap,
*nimaps);
} else {
error = xfs_iomap_write_delay(ip, offset, count, flags,
imap, nimaps);
error = xfs_iomap_write_delay(ip, offset, count, imap);
}
if (!error) {
trace_xfs_iomap_alloc(ip, offset, count, flags, imap);
}
@ -155,13 +155,10 @@ xfs_iomap(
break;
}
error = xfs_iomap_write_allocate(ip, offset, count,
imap, nimaps);
error = xfs_iomap_write_allocate(ip, offset, count, imap);
break;
}
ASSERT(*nimaps <= 1);
out:
if (lockmode)
xfs_iunlock(ip, lockmode);
@ -241,9 +238,8 @@ xfs_iomap_write_direct(
xfs_inode_t *ip,
xfs_off_t offset,
size_t count,
int flags,
xfs_bmbt_irec_t *imap,
int *nmaps)
int nmaps)
{
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t offset_fsb;
@ -279,7 +275,7 @@ xfs_iomap_write_direct(
if (error)
goto error_out;
} else {
if (*nmaps && (imap->br_startblock == HOLESTARTBLOCK))
if (nmaps && (imap->br_startblock == HOLESTARTBLOCK))
last_fsb = MIN(last_fsb, (xfs_fileoff_t)
imap->br_blockcount +
imap->br_startoff);
@ -331,7 +327,7 @@ xfs_iomap_write_direct(
xfs_trans_ijoin(tp, ip);
bmapi_flag = XFS_BMAPI_WRITE;
if ((flags & BMAPI_DIRECT) && (offset < ip->i_size || extsz))
if (offset < ip->i_size || extsz)
bmapi_flag |= XFS_BMAPI_PREALLOC;
/*
@ -370,7 +366,6 @@ xfs_iomap_write_direct(
goto error_out;
}
*nmaps = 1;
return 0;
error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
@ -379,7 +374,6 @@ error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
error1: /* Just cancel transaction */
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
*nmaps = 0; /* nothing set-up here */
error_out:
return XFS_ERROR(error);
@ -396,7 +390,6 @@ xfs_iomap_eof_want_preallocate(
xfs_inode_t *ip,
xfs_off_t offset,
size_t count,
int ioflag,
xfs_bmbt_irec_t *imap,
int nimaps,
int *prealloc)
@ -440,9 +433,7 @@ xfs_iomap_write_delay(
xfs_inode_t *ip,
xfs_off_t offset,
size_t count,
int ioflag,
xfs_bmbt_irec_t *ret_imap,
int *nmaps)
xfs_bmbt_irec_t *ret_imap)
{
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t offset_fsb;
@ -470,7 +461,7 @@ xfs_iomap_write_delay(
offset_fsb = XFS_B_TO_FSBT(mp, offset);
error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,
ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
imap, XFS_WRITE_IMAPS, &prealloc);
if (error)
return error;
@ -523,8 +514,6 @@ retry:
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
*nmaps = 1;
return 0;
}
@ -543,8 +532,7 @@ xfs_iomap_write_allocate(
xfs_inode_t *ip,
xfs_off_t offset,
size_t count,
xfs_bmbt_irec_t *imap,
int *retmap)
xfs_bmbt_irec_t *imap)
{
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t offset_fsb, last_block;
@ -557,8 +545,6 @@ xfs_iomap_write_allocate(
int error = 0;
int nres;
*retmap = 0;
/*
* Make sure that the dquots are there.
*/
@ -680,7 +666,6 @@ xfs_iomap_write_allocate(
if ((offset_fsb >= imap->br_startoff) &&
(offset_fsb < (imap->br_startoff +
imap->br_blockcount))) {
*retmap = 1;
XFS_STATS_INC(xs_xstrat_quick);
return 0;
}