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xfs: convert refcount btree cursor to use perags

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Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Dave Chinner 2021-06-02 10:48:24 +10:00 • committed by Dave Chinner
parent fa9c3c1973
commit a81a06211f
9 changed files with 50 additions and 44 deletions
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40
fs/xfs/libxfs/xfs_refcount.c
View file

@ -22,6 +22,7 @@
#include "xfs_bit.h"
#include "xfs_refcount.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
/* Allowable refcount adjustment amounts. */
enum xfs_refc_adjust_op {
@ -1142,30 +1143,30 @@ xfs_refcount_finish_one(
struct xfs_btree_cur *rcur;
struct xfs_buf *agbp = NULL;
int error = 0;
xfs_agnumber_t agno;
xfs_agblock_t bno;
xfs_agblock_t new_agbno;
unsigned long nr_ops = 0;
int shape_changes = 0;
struct xfs_perag *pag;
agno = XFS_FSB_TO_AGNO(mp, startblock);
ASSERT(agno != NULLAGNUMBER);
pag = xfs_perag_get(mp, XFS_FSB_TO_AGNO(mp, startblock));
bno = XFS_FSB_TO_AGBNO(mp, startblock);
trace_xfs_refcount_deferred(mp, XFS_FSB_TO_AGNO(mp, startblock),
type, XFS_FSB_TO_AGBNO(mp, startblock),
blockcount);
if (XFS_TEST_ERROR(false, mp,
XFS_ERRTAG_REFCOUNT_FINISH_ONE))
return -EIO;
if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_REFCOUNT_FINISH_ONE)) {
error = -EIO;
goto out_drop;
}
/*
* If we haven't gotten a cursor or the cursor AG doesn't match
* the startblock, get one now.
*/
rcur = *pcur;
if (rcur != NULL && rcur->bc_ag.agno != agno) {
if (rcur != NULL && rcur->bc_ag.pag != pag) {
nr_ops = rcur->bc_ag.refc.nr_ops;
shape_changes = rcur->bc_ag.refc.shape_changes;
xfs_refcount_finish_one_cleanup(tp, rcur, 0);
@ -1173,12 +1174,12 @@ xfs_refcount_finish_one(
*pcur = NULL;
}
if (rcur == NULL) {
error = xfs_alloc_read_agf(tp->t_mountp, tp, agno,
error = xfs_alloc_read_agf(tp->t_mountp, tp, pag->pag_agno,
XFS_ALLOC_FLAG_FREEING, &agbp);
if (error)
return error;
goto out_drop;
rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, pag);
rcur->bc_ag.refc.nr_ops = nr_ops;
rcur->bc_ag.refc.shape_changes = shape_changes;
}
@ -1188,12 +1189,12 @@ xfs_refcount_finish_one(
case XFS_REFCOUNT_INCREASE:
error = xfs_refcount_adjust(rcur, bno, blockcount, &new_agbno,
new_len, XFS_REFCOUNT_ADJUST_INCREASE, NULL);
*new_fsb = XFS_AGB_TO_FSB(mp, agno, new_agbno);
*new_fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, new_agbno);
break;
case XFS_REFCOUNT_DECREASE:
error = xfs_refcount_adjust(rcur, bno, blockcount, &new_agbno,
new_len, XFS_REFCOUNT_ADJUST_DECREASE, NULL);
*new_fsb = XFS_AGB_TO_FSB(mp, agno, new_agbno);
*new_fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, new_agbno);
break;
case XFS_REFCOUNT_ALLOC_COW:
*new_fsb = startblock + blockcount;
@ -1210,8 +1211,10 @@ xfs_refcount_finish_one(
error = -EFSCORRUPTED;
}
if (!error && *new_len > 0)
trace_xfs_refcount_finish_one_leftover(mp, agno, type,
trace_xfs_refcount_finish_one_leftover(mp, pag->pag_agno, type,
bno, blockcount, new_agbno, *new_len);
out_drop:
xfs_perag_put(pag);
return error;
}
@ -1672,7 +1675,7 @@ xfs_refcount_recover_extent(
int
xfs_refcount_recover_cow_leftovers(
struct xfs_mount *mp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_trans *tp;
struct xfs_btree_cur *cur;
@ -1704,10 +1707,10 @@ xfs_refcount_recover_cow_leftovers(
if (error)
return error;
error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
goto out_trans;
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, pag);
/* Find all the leftover CoW staging extents. */
memset(&low, 0, sizeof(low));
@ -1729,11 +1732,12 @@ xfs_refcount_recover_cow_leftovers(
if (error)
goto out_free;
trace_xfs_refcount_recover_extent(mp, agno, &rr->rr_rrec);
trace_xfs_refcount_recover_extent(mp, pag->pag_agno,
&rr->rr_rrec);
/* Free the orphan record */
agbno = rr->rr_rrec.rc_startblock - XFS_REFC_COW_START;
fsb = XFS_AGB_TO_FSB(mp, agno, agbno);
fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, agbno);
xfs_refcount_free_cow_extent(tp, fsb,
rr->rr_rrec.rc_blockcount);