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xfs: refactor the btree cursor allocation logic in xchk_ag_btcur_init 

Change xchk_ag_btcur_init to allocate all cursors first and only then
check if we should delete them again because the btree is to damaged.

This allows reusing the sick_mask in struct xfs_btree_ops and simplifies
the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-02-22 12:39:48 -08:00 committed by Darrick J. Wong
parent 7f47734ad6
commit 4803992619
3 changed files with 44 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
fs/xfs/scrub/common.c
View File

@ -588,46 +588,50 @@ xchk_ag_btcur_init(
{
struct xfs_mount *mp = sc->mp;
if (sa->agf_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_BNO)) {
if (sa->agf_bp) {
/* Set up a bnobt cursor for cross-referencing. */
sa->bno_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
sa->pag, XFS_BTNUM_BNO);
}
xchk_ag_btree_del_cursor_if_sick(sc, &sa->bno_cur,
XFS_SCRUB_TYPE_BNOBT);
if (sa->agf_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_CNT)) {
/* Set up a cntbt cursor for cross-referencing. */
sa->cnt_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
sa->pag, XFS_BTNUM_CNT);
xchk_ag_btree_del_cursor_if_sick(sc, &sa->cnt_cur,
XFS_SCRUB_TYPE_CNTBT);
/* Set up a rmapbt cursor for cross-referencing. */
if (xfs_has_rmapbt(mp)) {
sa->rmap_cur = xfs_rmapbt_init_cursor(mp, sc->tp,
sa->agf_bp, sa->pag);
xchk_ag_btree_del_cursor_if_sick(sc, &sa->rmap_cur,
XFS_SCRUB_TYPE_RMAPBT);
}
/* Set up a refcountbt cursor for cross-referencing. */
if (xfs_has_reflink(mp)) {
sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
sa->agf_bp, sa->pag);
xchk_ag_btree_del_cursor_if_sick(sc, &sa->refc_cur,
XFS_SCRUB_TYPE_REFCNTBT);
}
}
/* Set up a inobt cursor for cross-referencing. */
if (sa->agi_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_INO)) {
if (sa->agi_bp) {
/* Set up a inobt cursor for cross-referencing. */
sa->ino_cur = xfs_inobt_init_cursor(sa->pag, sc->tp, sa->agi_bp,
XFS_BTNUM_INO);
}
xchk_ag_btree_del_cursor_if_sick(sc, &sa->ino_cur,
XFS_SCRUB_TYPE_INOBT);
/* Set up a finobt cursor for cross-referencing. */
if (sa->agi_bp && xfs_has_finobt(mp) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_FINO)) {
sa->fino_cur = xfs_inobt_init_cursor(sa->pag, sc->tp, sa->agi_bp,
XFS_BTNUM_FINO);
}
/* Set up a rmapbt cursor for cross-referencing. */
if (sa->agf_bp && xfs_has_rmapbt(mp) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_RMAP)) {
sa->rmap_cur = xfs_rmapbt_init_cursor(mp, sc->tp, sa->agf_bp,
sa->pag);
}
/* Set up a refcountbt cursor for cross-referencing. */
if (sa->agf_bp && xfs_has_reflink(mp) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_REFC)) {
sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
sa->agf_bp, sa->pag);
/* Set up a finobt cursor for cross-referencing. */
if (xfs_has_finobt(mp)) {
sa->fino_cur = xfs_inobt_init_cursor(sa->pag, sc->tp,
sa->agi_bp, XFS_BTNUM_FINO);
xchk_ag_btree_del_cursor_if_sick(sc, &sa->fino_cur,
XFS_SCRUB_TYPE_FINOBT);
}
}
}

54
fs/xfs/scrub/health.c
View File

@ -248,13 +248,13 @@ xchk_update_health(
}
/* Is the given per-AG btree healthy enough for scanning? */
bool
xchk_ag_btree_healthy_enough(
void
xchk_ag_btree_del_cursor_if_sick(
struct xfs_scrub *sc,
struct xfs_perag *pag,
xfs_btnum_t btnum)
struct xfs_btree_cur **curp,
unsigned int sm_type)
{
unsigned int mask = 0;
unsigned int mask = (*curp)->bc_ops->sick_mask;
/*
* We always want the cursor if it's the same type as whatever we're
@ -263,41 +263,8 @@ xchk_ag_btree_healthy_enough(
* Otherwise, we're only interested in the btree for cross-referencing.
* If we know the btree is bad then don't bother, just set XFAIL.
*/
switch (btnum) {
case XFS_BTNUM_BNO:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_BNOBT)
return true;
mask = XFS_SICK_AG_BNOBT;
break;
case XFS_BTNUM_CNT:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_CNTBT)
return true;
mask = XFS_SICK_AG_CNTBT;
break;
case XFS_BTNUM_INO:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_INOBT)
return true;
mask = XFS_SICK_AG_INOBT;
break;
case XFS_BTNUM_FINO:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_FINOBT)
return true;
mask = XFS_SICK_AG_FINOBT;
break;
case XFS_BTNUM_RMAP:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_RMAPBT)
return true;
mask = XFS_SICK_AG_RMAPBT;
break;
case XFS_BTNUM_REFC:
if (sc->sm->sm_type == XFS_SCRUB_TYPE_REFCNTBT)
return true;
mask = XFS_SICK_AG_REFCNTBT;
break;
default:
ASSERT(0);
return true;
}
if (sc->sm->sm_type == sm_type)
return;
/*
* If we just repaired some AG metadata, sc->sick_mask will reflect all
@ -309,12 +276,11 @@ xchk_ag_btree_healthy_enough(
type_to_health_flag[sc->sm->sm_type].group == XHG_AG)
mask &= ~sc->sick_mask;
if (xfs_ag_has_sickness(pag, mask)) {
if (xfs_ag_has_sickness((*curp)->bc_ag.pag, mask)) {
sc->sm->sm_flags |= XFS_SCRUB_OFLAG_XFAIL;
return false;
xfs_btree_del_cursor(*curp, XFS_BTREE_NOERROR);
*curp = NULL;
}
return true;
}
/*

4
fs/xfs/scrub/health.h
View File

@ -8,8 +8,8 @@
unsigned int xchk_health_mask_for_scrub_type(__u32 scrub_type);
void xchk_update_health(struct xfs_scrub *sc);
bool xchk_ag_btree_healthy_enough(struct xfs_scrub *sc, struct xfs_perag *pag,
xfs_btnum_t btnum);
void xchk_ag_btree_del_cursor_if_sick(struct xfs_scrub *sc,
struct xfs_btree_cur **curp, unsigned int sm_type);
void xchk_mark_healthy_if_clean(struct xfs_scrub *sc, unsigned int mask);
bool xchk_file_looks_zapped(struct xfs_scrub *sc, unsigned int mask);
int xchk_health_record(struct xfs_scrub *sc);