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xfs: make xfs_trans_get_buf return an error code

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Convert xfs_trans_get_buf() to return numeric error codes like most
everywhere else in xfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2020-01-23 17:01:18 -08:00
parent 9676b54e6e
commit ce92464c18
10 changed files with 67 additions and 62 deletions
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23
fs/xfs/libxfs/xfs_btree.c
View File

@ -688,11 +688,16 @@ xfs_btree_get_bufl(
xfs_trans_t *tp, /* transaction pointer */
xfs_fsblock_t fsbno) /* file system block number */
{
struct xfs_buf *bp;
xfs_daddr_t d; /* real disk block address */
int error;
ASSERT(fsbno != NULLFSBLOCK);
d = XFS_FSB_TO_DADDR(mp, fsbno);
return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0);
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
if (error)
return NULL;
return bp;
}
/*
@ -706,12 +711,17 @@ xfs_btree_get_bufs(
xfs_agnumber_t agno, /* allocation group number */
xfs_agblock_t agbno) /* allocation group block number */
{
struct xfs_buf *bp;
xfs_daddr_t d; /* real disk block address */
int error;
ASSERT(agno != NULLAGNUMBER);
ASSERT(agbno != NULLAGBLOCK);
d = XFS_AGB_TO_DADDR(mp, agno, agbno);
return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0);
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0, &bp);
if (error)
return NULL;
return bp;
}
/*
@ -1270,11 +1280,10 @@ xfs_btree_get_buf_block(
error = xfs_btree_ptr_to_daddr(cur, ptr, &d);
if (error)
return error;
*bpp = xfs_trans_get_buf(cur->bc_tp, mp->m_ddev_targp, d,
mp->m_bsize, 0);
if (!*bpp)
return -ENOMEM;
error = xfs_trans_get_buf(cur->bc_tp, mp->m_ddev_targp, d, mp->m_bsize,
0, bpp);
if (error)
return error;
(*bpp)->b_ops = cur->bc_ops->buf_ops;
*block = XFS_BUF_TO_BLOCK(*bpp);

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

@ -276,6 +276,7 @@ xfs_ialloc_inode_init(
int i, j;
xfs_daddr_t d;
xfs_ino_t ino = 0;
int error;
/*
* Loop over the new block(s), filling in the inodes. For small block
@ -327,12 +328,11 @@ xfs_ialloc_inode_init(
*/
d = XFS_AGB_TO_DADDR(mp, agno, agbno +
(j * M_IGEO(mp)->blocks_per_cluster));
fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
mp->m_bsize *
M_IGEO(mp)->blocks_per_cluster,
XBF_UNMAPPED);
if (!fbuf)
return -ENOMEM;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
mp->m_bsize * M_IGEO(mp)->blocks_per_cluster,
XBF_UNMAPPED, &fbuf);
if (error)
return error;
/* Initialize the inode buffers and log them appropriately. */
fbuf->b_ops = &xfs_inode_buf_ops;

9
fs/xfs/libxfs/xfs_sb.c
View File

@ -1185,13 +1185,14 @@ xfs_sb_get_secondary(
struct xfs_buf **bpp)
{
struct xfs_buf *bp;
int error;
ASSERT(agno != 0 && agno != NULLAGNUMBER);
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp,
error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
XFS_AG_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
XFS_FSS_TO_BB(mp, 1), 0);
if (!bp)
return -ENOMEM;
XFS_FSS_TO_BB(mp, 1), 0, &bp);
if (error)
return error;
bp->b_ops = &xfs_sb_buf_ops;
xfs_buf_oneshot(bp);
*bpp = bp;

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

@ -341,13 +341,17 @@ xrep_init_btblock(
struct xfs_trans *tp = sc->tp;
struct xfs_mount *mp = sc->mp;
struct xfs_buf *bp;
int error;
trace_xrep_init_btblock(mp, XFS_FSB_TO_AGNO(mp, fsb),
XFS_FSB_TO_AGBNO(mp, fsb), btnum);
ASSERT(XFS_FSB_TO_AGNO(mp, fsb) == sc->sa.agno);
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, XFS_FSB_TO_DADDR(mp, fsb),
XFS_FSB_TO_BB(mp, 1), 0);
error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
XFS_FSB_TO_DADDR(mp, fsb), XFS_FSB_TO_BB(mp, 1), 0,
&bp);
if (error)
return error;
xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
xfs_btree_init_block(mp, bp, btnum, 0, 0, sc->sa.agno);
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_BTREE_BUF);

17
fs/xfs/xfs_attr_inactive.c
View File

@ -205,11 +205,12 @@ xfs_attr3_node_inactive(
/*
* Remove the subsidiary block from the cache and from the log.
*/
child_bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp,
error = xfs_trans_get_buf(*trans, mp->m_ddev_targp,
child_blkno,
XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0);
if (!child_bp)
return -EIO;
XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0,
&child_bp);
if (error)
return error;
error = bp->b_error;
if (error) {
xfs_trans_brelse(*trans, child_bp);
@ -298,10 +299,10 @@ xfs_attr3_root_inactive(
/*
* Invalidate the incore copy of the root block.
*/
bp = xfs_trans_get_buf(*trans, mp->m_ddev_targp, blkno,
XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0);
if (!bp)
return -EIO;
error = xfs_trans_get_buf(*trans, mp->m_ddev_targp, blkno,
XFS_FSB_TO_BB(mp, mp->m_attr_geo->fsbcount), 0, &bp);
if (error)
return error;
error = bp->b_error;
if (error) {
xfs_trans_brelse(*trans, bp);

8
fs/xfs/xfs_dquot.c
View File

@ -320,10 +320,10 @@ xfs_dquot_disk_alloc(
dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock);
/* now we can just get the buffer (there's nothing to read yet) */
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, dqp->q_blkno,
mp->m_quotainfo->qi_dqchunklen, 0);
if (!bp)
return -ENOMEM;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, dqp->q_blkno,
mp->m_quotainfo->qi_dqchunklen, 0, &bp);
if (error)
return error;
bp->b_ops = &xfs_dquot_buf_ops;
/*

12
fs/xfs/xfs_inode.c
View File

@ -2546,6 +2546,7 @@ xfs_ifree_cluster(
struct xfs_perag *pag;
struct xfs_ino_geometry *igeo = M_IGEO(mp);
xfs_ino_t inum;
int error;
inum = xic->first_ino;
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, inum));
@ -2574,12 +2575,11 @@ xfs_ifree_cluster(
* complete before we get a lock on it, and hence we may fail
* to mark all the active inodes on the buffer stale.
*/
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
mp->m_bsize * igeo->blocks_per_cluster,
XBF_UNMAPPED);
if (!bp)
return -ENOMEM;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
mp->m_bsize * igeo->blocks_per_cluster,
XBF_UNMAPPED, &bp);
if (error)
return error;
/*
* This buffer may not have been correctly initialised as we

8
fs/xfs/xfs_rtalloc.c
View File

@ -826,12 +826,10 @@ xfs_growfs_rt_alloc(
* Get a buffer for the block.
*/
d = XFS_FSB_TO_DADDR(mp, fsbno);
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
mp->m_bsize, 0);
if (bp == NULL) {
error = -EIO;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
mp->m_bsize, 0, &bp);
if (error)
goto out_trans_cancel;
}
memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
/*

19
fs/xfs/xfs_symlink.c
View File

@ -280,12 +280,10 @@ xfs_symlink(
d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock);
byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount);
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
BTOBB(byte_cnt), 0);
if (!bp) {
error = -ENOMEM;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
BTOBB(byte_cnt), 0, &bp);
if (error)
goto out_trans_cancel;
}
bp->b_ops = &xfs_symlink_buf_ops;
byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt);
@ -423,13 +421,12 @@ xfs_inactive_symlink_rmt(
* Invalidate the block(s). No validation is done.
*/
for (i = 0; i < nmaps; i++) {
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp,
XFS_FSB_TO_DADDR(mp, mval[i].br_startblock),
XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0);
if (!bp) {
error = -ENOMEM;
error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
XFS_FSB_TO_DADDR(mp, mval[i].br_startblock),
XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0,
&bp);
if (error)
goto error_trans_cancel;
}
xfs_trans_binval(tp, bp);
}
/*

13
fs/xfs/xfs_trans.h
View File

@ -173,22 +173,17 @@ int xfs_trans_get_buf_map(struct xfs_trans *tp, struct xfs_buftarg *target,
struct xfs_buf_map *map, int nmaps, xfs_buf_flags_t flags,
struct xfs_buf **bpp);
static inline struct xfs_buf *
static inline int
xfs_trans_get_buf(
struct xfs_trans *tp,
struct xfs_buftarg *target,
xfs_daddr_t blkno,
int numblks,
uint flags)
uint flags,
struct xfs_buf **bpp)
{
struct xfs_buf *bp;
int error;
DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
error = xfs_trans_get_buf_map(tp, target, &map, 1, flags, &bp);
if (error)
return NULL;
return bp;
return xfs_trans_get_buf_map(tp, target, &map, 1, flags, bpp);
}
int xfs_trans_read_buf_map(struct xfs_mount *mp,