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[XFS] use NULL for pointer initialisation instead of zero-cast-to-ptr

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SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:26562a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
Nathan Scott 2006-09-28 10:58:40 +10:00 committed by Tim Shimmin
parent 8801bb99e4
commit 1121b219bf
4 changed files with 15 additions and 15 deletions
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8
fs/xfs/xfs_alloc_btree.c
View file

@ -670,7 +670,7 @@ xfs_alloc_insrec(
}
#endif
nbno = NULLAGBLOCK;
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
/*
* If the block is full, we can't insert the new entry until we
* make the block un-full.
@ -981,7 +981,7 @@ xfs_alloc_lookup(
*/
bp = cur->bc_bufs[level];
if (bp && XFS_BUF_ADDR(bp) != d)
bp = (xfs_buf_t *)0;
bp = NULL;
if (!bp) {
/*
* Need to get a new buffer. Read it, then
@ -2044,7 +2044,7 @@ xfs_alloc_insert(
nbno = NULLAGBLOCK;
nrec.ar_startblock = cpu_to_be32(cur->bc_rec.a.ar_startblock);
nrec.ar_blockcount = cpu_to_be32(cur->bc_rec.a.ar_blockcount);
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
pcur = cur;
/*
* Loop going up the tree, starting at the leaf level.
@ -2076,7 +2076,7 @@ xfs_alloc_insert(
*/
if (ncur) {
pcur = ncur;
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
}
} while (nbno != NULLAGBLOCK);
*stat = i;

10
fs/xfs/xfs_bmap_btree.c
View file

@ -352,7 +352,7 @@ xfs_bmbt_delrec(
XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
XFS_BMBT_TRACE_ARGI(cur, level);
ptr = cur->bc_ptrs[level];
tcur = (xfs_btree_cur_t *)0;
tcur = NULL;
if (ptr == 0) {
XFS_BMBT_TRACE_CURSOR(cur, EXIT);
*stat = 0;
@ -755,7 +755,7 @@ xfs_bmbt_insrec(
ASSERT(level < cur->bc_nlevels);
XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
XFS_BMBT_TRACE_ARGIFR(cur, level, *bnop, recp);
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
key.br_startoff = cpu_to_be64(xfs_bmbt_disk_get_startoff(recp));
optr = ptr = cur->bc_ptrs[level];
if (ptr == 0) {
@ -1126,7 +1126,7 @@ xfs_bmbt_lookup(
d = XFS_FSB_TO_DADDR(mp, fsbno);
bp = cur->bc_bufs[level];
if (bp && XFS_BUF_ADDR(bp) != d)
bp = (xfs_buf_t *)0;
bp = NULL;
if (!bp) {
if ((error = xfs_btree_read_bufl(mp, tp, fsbno,
0, &bp, XFS_BMAP_BTREE_REF))) {
@ -2170,7 +2170,7 @@ xfs_bmbt_insert(
level = 0;
nbno = NULLFSBLOCK;
xfs_bmbt_disk_set_all(&nrec, &cur->bc_rec.b);
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
pcur = cur;
do {
if ((error = xfs_bmbt_insrec(pcur, level++, &nbno, &nrec, &ncur,
@ -2197,7 +2197,7 @@ xfs_bmbt_insert(
}
if (ncur) {
pcur = ncur;
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
}
} while (nbno != NULLFSBLOCK);
XFS_BMBT_TRACE_CURSOR(cur, EXIT);

4
fs/xfs/xfs_ialloc.c
View file

@ -458,7 +458,7 @@ xfs_ialloc_ag_select(
*/
if (XFS_FORCED_SHUTDOWN(mp)) {
up_read(&mp->m_peraglock);
return (xfs_buf_t *)0;
return NULL;
}
agno++;
if (agno >= agcount)
@ -466,7 +466,7 @@ xfs_ialloc_ag_select(
if (agno == pagno) {
if (flags == 0) {
up_read(&mp->m_peraglock);
return (xfs_buf_t *)0;
return NULL;
}
flags = 0;
}

8
fs/xfs/xfs_ialloc_btree.c
View file

@ -600,7 +600,7 @@ xfs_inobt_insrec(
}
#endif
nbno = NULLAGBLOCK;
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
/*
* If the block is full, we can't insert the new entry until we
* make the block un-full.
@ -878,7 +878,7 @@ xfs_inobt_lookup(
*/
bp = cur->bc_bufs[level];
if (bp && XFS_BUF_ADDR(bp) != d)
bp = (xfs_buf_t *)0;
bp = NULL;
if (!bp) {
/*
* Need to get a new buffer. Read it, then
@ -1933,7 +1933,7 @@ xfs_inobt_insert(
nrec.ir_startino = cpu_to_be32(cur->bc_rec.i.ir_startino);
nrec.ir_freecount = cpu_to_be32(cur->bc_rec.i.ir_freecount);
nrec.ir_free = cpu_to_be64(cur->bc_rec.i.ir_free);
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
pcur = cur;
/*
* Loop going up the tree, starting at the leaf level.
@ -1965,7 +1965,7 @@ xfs_inobt_insert(
*/
if (ncur) {
pcur = ncur;
ncur = (xfs_btree_cur_t *)0;
ncur = NULL;
}
} while (nbno != NULLAGBLOCK);
*stat = i;