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xfs: remove XFS_BUF_TO_AGF 

Just dereference bp->b_addr directly and make the code a little
simpler and more clear.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2020-03-10 08:57:29 -07:00 committed by Darrick J. Wong
parent 370c782b98
commit 9798f615ad
11 changed files with 68 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/xfs/libxfs/xfs_ag.c
View File

@ -243,7 +243,7 @@ xfs_agfblock_init(
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(bp);
struct xfs_agf *agf = bp->b_addr;
xfs_extlen_t tmpsize;
agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
@ -515,7 +515,7 @@ xfs_ag_extend_space(
if (error)
return error;
agf = XFS_BUF_TO_AGF(bp);
agf = bp->b_addr;
be32_add_cpu(&agf->agf_length, len);
ASSERT(agf->agf_length == agi->agi_length);
xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
@ -573,7 +573,7 @@ xfs_ag_get_geometry(
ageo->ag_icount = be32_to_cpu(agi->agi_count);
ageo->ag_ifree = be32_to_cpu(agi->agi_freecount);
agf = XFS_BUF_TO_AGF(agf_bp);
agf = agf_bp->b_addr;
ageo->ag_length = be32_to_cpu(agf->agf_length);
freeblks = pag->pagf_freeblks +
pag->pagf_flcount +

52
fs/xfs/libxfs/xfs_alloc.c
View File

@ -714,7 +714,7 @@ xfs_alloc_update_counters(
struct xfs_buf *agbp,
long len)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
pag->pagf_freeblks += len;
be32_add_cpu(&agf->agf_freeblks, len);
@ -923,13 +923,13 @@ xfs_alloc_cur_finish(
struct xfs_alloc_arg *args,
struct xfs_alloc_cur *acur)
{
struct xfs_agf __maybe_unused *agf = args->agbp->b_addr;
int error;
ASSERT(acur->cnt && acur->bnolt);
ASSERT(acur->bno >= acur->rec_bno);
ASSERT(acur->bno + acur->len <= acur->rec_bno + acur->rec_len);
ASSERT(acur->rec_bno + acur->rec_len <=
be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
ASSERT(acur->rec_bno + acur->rec_len <= be32_to_cpu(agf->agf_length));
error = xfs_alloc_fixup_trees(acur->cnt, acur->bnolt, acur->rec_bno,
acur->rec_len, acur->bno, acur->len, 0);
@ -1027,6 +1027,7 @@ xfs_alloc_ag_vextent_small(
xfs_extlen_t *flenp, /* result length */
int *stat) /* status: 0-freelist, 1-normal/none */
{
struct xfs_agf *agf = args->agbp->b_addr;
int error = 0;
xfs_agblock_t fbno = NULLAGBLOCK;
xfs_extlen_t flen = 0;
@ -1055,8 +1056,7 @@ xfs_alloc_ag_vextent_small(
if (args->minlen != 1 || args->alignment != 1 ||
args->resv == XFS_AG_RESV_AGFL ||
(be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_flcount) <=
args->minleft))
be32_to_cpu(agf->agf_flcount) <= args->minleft)
goto out;
error = xfs_alloc_get_freelist(args->tp, args->agbp, &fbno, 0);
@ -1080,9 +1080,7 @@ xfs_alloc_ag_vextent_small(
}
*fbnop = args->agbno = fbno;
*flenp = args->len = 1;
if (XFS_IS_CORRUPT(args->mp,
fbno >= be32_to_cpu(
XFS_BUF_TO_AGF(args->agbp)->agf_length))) {
if (XFS_IS_CORRUPT(args->mp, fbno >= be32_to_cpu(agf->agf_length))) {
error = -EFSCORRUPTED;
goto error;
}
@ -1204,6 +1202,7 @@ STATIC int /* error */
xfs_alloc_ag_vextent_exact(
xfs_alloc_arg_t *args) /* allocation argument structure */
{
struct xfs_agf __maybe_unused *agf = args->agbp->b_addr;
xfs_btree_cur_t *bno_cur;/* by block-number btree cursor */
xfs_btree_cur_t *cnt_cur;/* by count btree cursor */
int error;
@ -1282,8 +1281,7 @@ xfs_alloc_ag_vextent_exact(
*/
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_CNT);
ASSERT(args->agbno + args->len <=
be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
ASSERT(args->agbno + args->len <= be32_to_cpu(agf->agf_length));
error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen, args->agbno,
args->len, XFSA_FIXUP_BNO_OK);
if (error) {
@ -1662,6 +1660,7 @@ STATIC int /* error */
xfs_alloc_ag_vextent_size(
xfs_alloc_arg_t *args) /* allocation argument structure */
{
struct xfs_agf *agf = args->agbp->b_addr;
xfs_btree_cur_t *bno_cur; /* cursor for bno btree */
xfs_btree_cur_t *cnt_cur; /* cursor for cnt btree */
int error; /* error result */
@ -1852,8 +1851,7 @@ restart:
args->agbno = rbno;
if (XFS_IS_CORRUPT(args->mp,
args->agbno + args->len >
be32_to_cpu(
XFS_BUF_TO_AGF(args->agbp)->agf_length))) {
be32_to_cpu(agf->agf_length))) {
error = -EFSCORRUPTED;
goto error0;
}
@ -2425,7 +2423,7 @@ xfs_agfl_reset(
struct xfs_perag *pag)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
ASSERT(pag->pagf_agflreset);
trace_xfs_agfl_reset(mp, agf, 0, _RET_IP_);
@ -2656,7 +2654,7 @@ xfs_alloc_get_freelist(
xfs_agblock_t *bnop, /* block address retrieved from freelist */
int btreeblk) /* destination is a AGF btree */
{
xfs_agf_t *agf; /* a.g. freespace structure */
struct xfs_agf *agf = agbp->b_addr;
xfs_buf_t *agflbp;/* buffer for a.g. freelist structure */
xfs_agblock_t bno; /* block number returned */
__be32 *agfl_bno;
@ -2668,7 +2666,6 @@ xfs_alloc_get_freelist(
/*
* Freelist is empty, give up.
*/
agf = XFS_BUF_TO_AGF(agbp);
if (!agf->agf_flcount) {
*bnop = NULLAGBLOCK;
return 0;
@ -2746,7 +2743,7 @@ xfs_alloc_log_agf(
sizeof(xfs_agf_t)
};
trace_xfs_agf(tp->t_mountp, XFS_BUF_TO_AGF(bp), fields, _RET_IP_);
trace_xfs_agf(tp->t_mountp, bp->b_addr, fields, _RET_IP_);
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGF_BUF);
@ -2784,18 +2781,15 @@ xfs_alloc_put_freelist(
xfs_agblock_t bno, /* block being freed */
int btreeblk) /* block came from a AGF btree */
{
xfs_agf_t *agf; /* a.g. freespace structure */
struct xfs_mount *mp = tp->t_mountp;
struct xfs_agf *agf = agbp->b_addr;
__be32 *blockp;/* pointer to array entry */
int error;
int logflags;
xfs_mount_t *mp; /* mount structure */
xfs_perag_t *pag; /* per allocation group data */
__be32 *agfl_bno;
int startoff;
agf = XFS_BUF_TO_AGF(agbp);
mp = tp->t_mountp;
if (!agflbp && (error = xfs_alloc_read_agfl(mp, tp,
be32_to_cpu(agf->agf_seqno), &agflbp)))
return error;
@ -2839,13 +2833,12 @@ xfs_agf_verify(
struct xfs_buf *bp)
{
struct xfs_mount *mp = bp->b_mount;
struct xfs_agf *agf = XFS_BUF_TO_AGF(bp);
struct xfs_agf *agf = bp->b_addr;
if (xfs_sb_version_hascrc(&mp->m_sb)) {
if (!uuid_equal(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid))
return __this_address;
if (!xfs_log_check_lsn(mp,
be64_to_cpu(XFS_BUF_TO_AGF(bp)->agf_lsn)))
if (!xfs_log_check_lsn(mp, be64_to_cpu(agf->agf_lsn)))
return __this_address;
}
@ -2931,6 +2924,7 @@ xfs_agf_write_verify(
{
struct xfs_mount *mp = bp->b_mount;
struct xfs_buf_log_item *bip = bp->b_log_item;
struct xfs_agf *agf = bp->b_addr;
xfs_failaddr_t fa;
fa = xfs_agf_verify(bp);
@ -2943,7 +2937,7 @@ xfs_agf_write_verify(
return;
if (bip)
XFS_BUF_TO_AGF(bp)->agf_lsn = cpu_to_be64(bip->bli_item.li_lsn);
agf->agf_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_buf_update_cksum(bp, XFS_AGF_CRC_OFF);
}
@ -3011,7 +3005,7 @@ xfs_alloc_read_agf(
return error;
ASSERT(!(*bpp)->b_error);
agf = XFS_BUF_TO_AGF(*bpp);
agf = (*bpp)->b_addr;
pag = xfs_perag_get(mp, agno);
if (!pag->pagf_init) {
pag->pagf_freeblks = be32_to_cpu(agf->agf_freeblks);
@ -3292,6 +3286,7 @@ __xfs_free_extent(
struct xfs_buf *agbp;
xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, bno);
xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, bno);
struct xfs_agf *agf;
int error;
unsigned int busy_flags = 0;
@ -3305,6 +3300,7 @@ __xfs_free_extent(
error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
if (error)
return error;
agf = agbp->b_addr;
if (XFS_IS_CORRUPT(mp, agbno >= mp->m_sb.sb_agblocks)) {
error = -EFSCORRUPTED;
@ -3312,9 +3308,7 @@ __xfs_free_extent(
}
/* validate the extent size is legal now we have the agf locked */
if (XFS_IS_CORRUPT(mp,
agbno + len >
be32_to_cpu(XFS_BUF_TO_AGF(agbp)->agf_length))) {
if (XFS_IS_CORRUPT(mp, agbno + len > be32_to_cpu(agf->agf_length))) {
error = -EFSCORRUPTED;
goto err;
}

10
fs/xfs/libxfs/xfs_alloc_btree.c
View File

@ -36,7 +36,7 @@ xfs_allocbt_set_root(
int inc)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_agnumber_t seqno = be32_to_cpu(agf->agf_seqno);
int btnum = cur->bc_btnum;
struct xfs_perag *pag = xfs_perag_get(cur->bc_mp, seqno);
@ -87,7 +87,7 @@ xfs_allocbt_free_block(
struct xfs_buf *bp)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_agblock_t bno;
int error;
@ -113,7 +113,7 @@ xfs_allocbt_update_lastrec(
int ptr,
int reason)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
struct xfs_agf *agf = cur->bc_private.a.agbp->b_addr;
xfs_agnumber_t seqno = be32_to_cpu(agf->agf_seqno);
struct xfs_perag *pag;
__be32 len;
@ -226,7 +226,7 @@ xfs_allocbt_init_ptr_from_cur(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *ptr)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
struct xfs_agf *agf = cur->bc_private.a.agbp->b_addr;
ASSERT(cur->bc_private.a.agno == be32_to_cpu(agf->agf_seqno));
@ -482,7 +482,7 @@ xfs_allocbt_init_cursor(
xfs_agnumber_t agno, /* allocation group number */
xfs_btnum_t btnum) /* btree identifier */
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
ASSERT(btnum == XFS_BTNUM_BNO || btnum == XFS_BTNUM_CNT);

1
fs/xfs/libxfs/xfs_format.h
View File

@ -707,7 +707,6 @@ typedef struct xfs_agf {
/* disk block (xfs_daddr_t) in the AG */
#define XFS_AGF_DADDR(mp) ((xfs_daddr_t)(1 << (mp)->m_sectbb_log))
#define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp))
#define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)((bp)->b_addr))
/*
* Size of the unlinked inode hash table in the agi.

12
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@ -35,7 +35,7 @@ xfs_refcountbt_set_root(
int inc)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_agnumber_t seqno = be32_to_cpu(agf->agf_seqno);
struct xfs_perag *pag = xfs_perag_get(cur->bc_mp, seqno);
@ -58,7 +58,7 @@ xfs_refcountbt_alloc_block(
int *stat)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
struct xfs_alloc_arg args; /* block allocation args */
int error; /* error return value */
@ -102,7 +102,7 @@ xfs_refcountbt_free_block(
{
struct xfs_mount *mp = cur->bc_mp;
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_fsblock_t fsbno = XFS_DADDR_TO_FSB(mp, XFS_BUF_ADDR(bp));
int error;
@ -169,7 +169,7 @@ xfs_refcountbt_init_ptr_from_cur(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *ptr)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
struct xfs_agf *agf = cur->bc_private.a.agbp->b_addr;
ASSERT(cur->bc_private.a.agno == be32_to_cpu(agf->agf_seqno));
@ -320,7 +320,7 @@ xfs_refcountbt_init_cursor(
struct xfs_buf *agbp,
xfs_agnumber_t agno)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
ASSERT(agno != NULLAGNUMBER);
@ -420,7 +420,7 @@ xfs_refcountbt_calc_reserves(
if (error)
return error;
agf = XFS_BUF_TO_AGF(agbp);
agf = agbp->b_addr;
agblocks = be32_to_cpu(agf->agf_length);
tree_len = be32_to_cpu(agf->agf_refcount_blocks);
xfs_trans_brelse(tp, agbp);

12
fs/xfs/libxfs/xfs_rmap_btree.c
View File

@ -61,7 +61,7 @@ xfs_rmapbt_set_root(
int inc)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_agnumber_t seqno = be32_to_cpu(agf->agf_seqno);
int btnum = cur->bc_btnum;
struct xfs_perag *pag = xfs_perag_get(cur->bc_mp, seqno);
@ -84,7 +84,7 @@ xfs_rmapbt_alloc_block(
int *stat)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
int error;
xfs_agblock_t bno;
@ -121,7 +121,7 @@ xfs_rmapbt_free_block(
struct xfs_buf *bp)
{
struct xfs_buf *agbp = cur->bc_private.a.agbp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
xfs_agblock_t bno;
int error;
@ -215,7 +215,7 @@ xfs_rmapbt_init_ptr_from_cur(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *ptr)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
struct xfs_agf *agf = cur->bc_private.a.agbp->b_addr;
ASSERT(cur->bc_private.a.agno == be32_to_cpu(agf->agf_seqno));
@ -458,7 +458,7 @@ xfs_rmapbt_init_cursor(
struct xfs_buf *agbp,
xfs_agnumber_t agno)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agbp);
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_NOFS);
@ -569,7 +569,7 @@ xfs_rmapbt_calc_reserves(
if (error)
return error;
agf = XFS_BUF_TO_AGF(agbp);
agf = agbp->b_addr;
agblocks = be32_to_cpu(agf->agf_length);
tree_len = be32_to_cpu(agf->agf_rmap_blocks);
xfs_trans_brelse(tp, agbp);

14
fs/xfs/scrub/agheader.c
View File

@ -358,7 +358,7 @@ static inline void
xchk_agf_xref_freeblks(
struct xfs_scrub *sc)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
xfs_extlen_t blocks = 0;
int error;
@ -378,7 +378,7 @@ static inline void
xchk_agf_xref_cntbt(
struct xfs_scrub *sc)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
xfs_agblock_t agbno;
xfs_extlen_t blocks;
int have;
@ -410,7 +410,7 @@ STATIC void
xchk_agf_xref_btreeblks(
struct xfs_scrub *sc)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
struct xfs_mount *mp = sc->mp;
xfs_agblock_t blocks;
xfs_agblock_t btreeblks;
@ -456,7 +456,7 @@ static inline void
xchk_agf_xref_refcblks(
struct xfs_scrub *sc)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
xfs_agblock_t blocks;
int error;
@ -525,7 +525,7 @@ xchk_agf(
goto out;
xchk_buffer_recheck(sc, sc->sa.agf_bp);
agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
agf = sc->sa.agf_bp->b_addr;
/* Check the AG length */
eoag = be32_to_cpu(agf->agf_length);
@ -711,7 +711,7 @@ xchk_agfl(
goto out;
/* Allocate buffer to ensure uniqueness of AGFL entries. */
agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
agf = sc->sa.agf_bp->b_addr;
agflcount = be32_to_cpu(agf->agf_flcount);
if (agflcount > xfs_agfl_size(sc->mp)) {
xchk_block_set_corrupt(sc, sc->sa.agf_bp);
@ -728,7 +728,7 @@ xchk_agfl(
}
/* Check the blocks in the AGFL. */
error = xfs_agfl_walk(sc->mp, XFS_BUF_TO_AGF(sc->sa.agf_bp),
error = xfs_agfl_walk(sc->mp, sc->sa.agf_bp->b_addr,
sc->sa.agfl_bp, xchk_agfl_block, &sai);
if (error == -ECANCELED) {
error = 0;

14
fs/xfs/scrub/agheader_repair.c
View File

@ -140,7 +140,7 @@ xrep_agf_find_btrees(
struct xrep_find_ag_btree *fab,
struct xfs_buf *agfl_bp)
{
struct xfs_agf *old_agf = XFS_BUF_TO_AGF(agf_bp);
struct xfs_agf *old_agf = agf_bp->b_addr;
int error;
/* Go find the root data. */
@ -181,7 +181,7 @@ xrep_agf_init_header(
struct xfs_agf *old_agf)
{
struct xfs_mount *mp = sc->mp;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agf_bp);
struct xfs_agf *agf = agf_bp->b_addr;
memcpy(old_agf, agf, sizeof(*old_agf));
memset(agf, 0, BBTOB(agf_bp->b_length));
@ -238,7 +238,7 @@ xrep_agf_calc_from_btrees(
{
struct xrep_agf_allocbt raa = { .sc = sc };
struct xfs_btree_cur *cur = NULL;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agf_bp);
struct xfs_agf *agf = agf_bp->b_addr;
struct xfs_mount *mp = sc->mp;
xfs_agblock_t btreeblks;
xfs_agblock_t blocks;
@ -302,7 +302,7 @@ xrep_agf_commit_new(
struct xfs_buf *agf_bp)
{
struct xfs_perag *pag;
struct xfs_agf *agf = XFS_BUF_TO_AGF(agf_bp);
struct xfs_agf *agf = agf_bp->b_addr;
/* Trigger fdblocks recalculation */
xfs_force_summary_recalc(sc->mp);
@ -376,7 +376,7 @@ xrep_agf(
if (error)
return error;
agf_bp->b_ops = &xfs_agf_buf_ops;
agf = XFS_BUF_TO_AGF(agf_bp);
agf = agf_bp->b_addr;
/*
* Load the AGFL so that we can screen out OWN_AG blocks that are on
@ -395,7 +395,7 @@ xrep_agf(
* Spot-check the AGFL blocks; if they're obviously corrupt then
* there's nothing we can do but bail out.
*/
error = xfs_agfl_walk(sc->mp, XFS_BUF_TO_AGF(agf_bp), agfl_bp,
error = xfs_agfl_walk(sc->mp, agf_bp->b_addr, agfl_bp,
xrep_agf_check_agfl_block, sc);
if (error)
return error;
@ -550,7 +550,7 @@ xrep_agfl_update_agf(
struct xfs_buf *agf_bp,
xfs_agblock_t flcount)
{
struct xfs_agf *agf = XFS_BUF_TO_AGF(agf_bp);
struct xfs_agf *agf = agf_bp->b_addr;
ASSERT(flcount <= xfs_agfl_size(sc->mp));

8
fs/xfs/scrub/repair.c
View File

@ -208,8 +208,10 @@ xrep_calc_ag_resblks(
/* Now grab the block counters from the AGF. */
error = xfs_alloc_read_agf(mp, NULL, sm->sm_agno, 0, &bp);
if (!error) {
aglen = be32_to_cpu(XFS_BUF_TO_AGF(bp)->agf_length);
freelen = be32_to_cpu(XFS_BUF_TO_AGF(bp)->agf_freeblks);
struct xfs_agf *agf = bp->b_addr;
aglen = be32_to_cpu(agf->agf_length);
freelen = be32_to_cpu(agf->agf_freeblks);
usedlen = aglen - freelen;
xfs_buf_relse(bp);
}
@ -879,7 +881,7 @@ xrep_find_ag_btree_roots(
ri.sc = sc;
ri.btree_info = btree_info;
ri.agf = XFS_BUF_TO_AGF(agf_bp);
ri.agf = agf_bp->b_addr;
ri.agfl_bp = agfl_bp;
for (fab = btree_info; fab->buf_ops; fab++) {
ASSERT(agfl_bp || fab->rmap_owner != XFS_RMAP_OWN_AG);

7
fs/xfs/xfs_discard.c
View File

@ -31,6 +31,7 @@ xfs_trim_extents(
struct block_device *bdev = mp->m_ddev_targp->bt_bdev;
struct xfs_btree_cur *cur;
struct xfs_buf *agbp;
struct xfs_agf *agf;
struct xfs_perag *pag;
int error;
int i;
@ -47,14 +48,14 @@ xfs_trim_extents(
error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
if (error)
goto out_put_perag;
agf = agbp->b_addr;
cur = xfs_allocbt_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_CNT);
/*
* Look up the longest btree in the AGF and start with it.
*/
error = xfs_alloc_lookup_ge(cur, 0,
be32_to_cpu(XFS_BUF_TO_AGF(agbp)->agf_longest), &i);
error = xfs_alloc_lookup_ge(cur, 0, be32_to_cpu(agf->agf_longest), &i);
if (error)
goto out_del_cursor;
@ -75,7 +76,7 @@ xfs_trim_extents(
error = -EFSCORRUPTED;
goto out_del_cursor;
}
ASSERT(flen <= be32_to_cpu(XFS_BUF_TO_AGF(agbp)->agf_longest));
ASSERT(flen <= be32_to_cpu(agf->agf_longest));
/*
* use daddr format for all range/len calculations as that is

4
fs/xfs/xfs_log_recover.c
View File

@ -5809,7 +5809,6 @@ xlog_recover_check_summary(
struct xlog *log)
{
xfs_mount_t *mp;
xfs_agf_t *agfp;
xfs_buf_t *agfbp;
xfs_buf_t *agibp;
xfs_agnumber_t agno;
@ -5829,7 +5828,8 @@ xlog_recover_check_summary(
xfs_alert(mp, "%s agf read failed agno %d error %d",
__func__, agno, error);
} else {
agfp = XFS_BUF_TO_AGF(agfbp);
struct xfs_agf *agfp = agfbp->b_addr;
freeblks += be32_to_cpu(agfp->agf_freeblks) +
be32_to_cpu(agfp->agf_flcount);
xfs_buf_relse(agfbp);