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xfs: remove XFS_BUF_TO_SBP

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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: Brian Foster <bfoster@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@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 08:57:30 -07:00 committed by Darrick J. Wong
parent 9798f615ad
commit 3e6e8afd3a
8 changed files with 15 additions and 15 deletions
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2
fs/xfs/libxfs/xfs_ag.c
View File

@ -231,7 +231,7 @@ xfs_sbblock_init(
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp);
struct xfs_dsb *dsb = bp->b_addr;
xfs_sb_to_disk(dsb, &mp->m_sb);
dsb->sb_inprogress = 1;

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

@ -560,7 +560,6 @@ xfs_is_quota_inode(struct xfs_sb *sbp, xfs_ino_t ino)
#define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */
#define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
#define XFS_BUF_TO_SBP(bp) ((xfs_dsb_t *)((bp)->b_addr))
#define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)XFS_BB_TO_FSBT(mp,d))
#define XFS_DADDR_TO_FSB(mp,d) XFS_AGB_TO_FSB(mp, \

17
fs/xfs/libxfs/xfs_sb.c
View File

@ -220,7 +220,7 @@ xfs_validate_sb_common(
struct xfs_buf *bp,
struct xfs_sb *sbp)
{
struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp);
struct xfs_dsb *dsb = bp->b_addr;
uint32_t agcount = 0;
uint32_t rem;
@ -681,7 +681,7 @@ xfs_sb_read_verify(
{
struct xfs_sb sb;
struct xfs_mount *mp = bp->b_mount;
struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp);
struct xfs_dsb *dsb = bp->b_addr;
int error;
/*
@ -707,7 +707,7 @@ xfs_sb_read_verify(
* Check all the superblock fields. Don't byteswap the xquota flags
* because _verify_common checks the on-disk values.
*/
__xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp), false);
__xfs_sb_from_disk(&sb, dsb, false);
error = xfs_validate_sb_common(mp, bp, &sb);
if (error)
goto out_error;
@ -730,7 +730,7 @@ static void
xfs_sb_quiet_read_verify(
struct xfs_buf *bp)
{
struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp);
struct xfs_dsb *dsb = bp->b_addr;
if (dsb->sb_magicnum == cpu_to_be32(XFS_SB_MAGIC)) {
/* XFS filesystem, verify noisily! */
@ -748,13 +748,14 @@ xfs_sb_write_verify(
struct xfs_sb sb;
struct xfs_mount *mp = bp->b_mount;
struct xfs_buf_log_item *bip = bp->b_log_item;
struct xfs_dsb *dsb = bp->b_addr;
int error;
/*
* Check all the superblock fields. Don't byteswap the xquota flags
* because _verify_common checks the on-disk values.
*/
__xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp), false);
__xfs_sb_from_disk(&sb, dsb, false);
error = xfs_validate_sb_common(mp, bp, &sb);
if (error)
goto out_error;
@ -766,7 +767,7 @@ xfs_sb_write_verify(
return;
if (bip)
XFS_BUF_TO_SBP(bp)->sb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
dsb->sb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
xfs_buf_update_cksum(bp, XFS_SB_CRC_OFF);
return;
@ -927,7 +928,7 @@ xfs_log_sb(
mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree);
mp->m_sb.sb_fdblocks = percpu_counter_sum(&mp->m_fdblocks);
xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
xfs_sb_to_disk(bp->b_addr, &mp->m_sb);
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);
xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb) - 1);
}
@ -1007,7 +1008,7 @@ xfs_update_secondary_sbs(
bp->b_ops = &xfs_sb_buf_ops;
xfs_buf_oneshot(bp);
xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
xfs_sb_to_disk(bp->b_addr, &mp->m_sb);
xfs_buf_delwri_queue(bp, &buffer_list);
xfs_buf_relse(bp);

2
fs/xfs/scrub/agheader.c
View File

@ -92,7 +92,7 @@ xchk_superblock(
if (!xchk_process_error(sc, agno, XFS_SB_BLOCK(mp), &error))
return error;
sb = XFS_BUF_TO_SBP(bp);
sb = bp->b_addr;
/*
* Verify the geometries match. Fields that are permanently

2
fs/xfs/scrub/agheader_repair.c
View File

@ -49,7 +49,7 @@ xrep_superblock(
/* Copy AG 0's superblock to this one. */
xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
xfs_sb_to_disk(bp->b_addr, &mp->m_sb);
/* Write this to disk. */
xfs_trans_buf_set_type(sc->tp, bp, XFS_BLFT_SB_BUF);

2
fs/xfs/xfs_log_recover.c
View File

@ -5636,7 +5636,7 @@ xlog_do_recover(
/* Convert superblock from on-disk format */
sbp = &mp->m_sb;
xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(bp));
xfs_sb_from_disk(sbp, bp->b_addr);
xfs_buf_relse(bp);
/* re-initialise in-core superblock and geometry structures */

2
fs/xfs/xfs_mount.c
View File

@ -310,7 +310,7 @@ reread:
/*
* Initialize the mount structure from the superblock.
*/
xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(bp));
xfs_sb_from_disk(sbp, bp->b_addr);
/*
* If we haven't validated the superblock, do so now before we try

2
fs/xfs/xfs_trans.c
View File

@ -450,7 +450,7 @@ xfs_trans_apply_sb_deltas(
int whole = 0;
bp = xfs_trans_getsb(tp, tp->t_mountp);
sbp = XFS_BUF_TO_SBP(bp);
sbp = bp->b_addr;
/*
* Check that superblock mods match the mods made to AGF counters.