diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-10-15 09:34:16 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-22 16:40:31 -0700 |
| commit | 21324204e4ca4cd25506bc4608730dcf5fd5bc25 (patch) | |
| tree | 96effca4e4912f614969602db644de49b65694a5 /fs/xfs/scrub | |
| parent | 519d81956ee277b4419c723adfb154603c2565ba (diff) | |
xfs: fix quotaoff mutex usage now that we don't support disabling it
Prior to commit 40b52225e58c ("xfs: remove support for disabling quota
accounting on a mounted file system"), we used the quotaoff mutex to
protect dquot operations against quotaoff trying to pull down dquots as
part of disabling quota.
Now that we only support turning off quota enforcement, the quotaoff
mutex only protects changes in m_qflags/sb_qflags. We don't need it to
protect dquots, which means we can remove it from setqlimits and the
dquot scrub code. While we're at it, fix the function that forces
quotacheck, since it should have been taking the quotaoff mutex.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/scrub')
| -rw-r--r-- | fs/xfs/scrub/quota.c | 4 | ||||
| -rw-r--r-- | fs/xfs/scrub/repair.c | 3 | ||||
| -rw-r--r-- | fs/xfs/scrub/scrub.c | 4 | ||||
| -rw-r--r-- | fs/xfs/scrub/scrub.h | 1 |
4 files changed, 5 insertions, 7 deletions
diff --git a/fs/xfs/scrub/quota.c b/fs/xfs/scrub/quota.c index d6c1b00a4fc8..3c7506c7553c 100644 --- a/fs/xfs/scrub/quota.c +++ b/fs/xfs/scrub/quota.c @@ -48,10 +48,10 @@ xchk_setup_quota( dqtype = xchk_quota_to_dqtype(sc); if (dqtype == 0) return -EINVAL; - sc->flags |= XCHK_HAS_QUOTAOFFLOCK; - mutex_lock(&sc->mp->m_quotainfo->qi_quotaofflock); + if (!xfs_this_quota_on(sc->mp, dqtype)) return -ENOENT; + error = xchk_setup_fs(sc); if (error) return error; diff --git a/fs/xfs/scrub/repair.c b/fs/xfs/scrub/repair.c index 8f3cba14ada3..1e7b6b209ee8 100644 --- a/fs/xfs/scrub/repair.c +++ b/fs/xfs/scrub/repair.c @@ -25,6 +25,7 @@ #include "xfs_ag.h" #include "xfs_ag_resv.h" #include "xfs_quota.h" +#include "xfs_qm.h" #include "scrub/scrub.h" #include "scrub/common.h" #include "scrub/trace.h" @@ -912,11 +913,13 @@ xrep_force_quotacheck( if (!(flag & sc->mp->m_qflags)) return; + mutex_lock(&sc->mp->m_quotainfo->qi_quotaofflock); sc->mp->m_qflags &= ~flag; spin_lock(&sc->mp->m_sb_lock); sc->mp->m_sb.sb_qflags &= ~flag; spin_unlock(&sc->mp->m_sb_lock); xfs_log_sb(sc->tp); + mutex_unlock(&sc->mp->m_quotainfo->qi_quotaofflock); } /* diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c index 51e4c61916d2..3e4607dfc661 100644 --- a/fs/xfs/scrub/scrub.c +++ b/fs/xfs/scrub/scrub.c @@ -173,10 +173,6 @@ xchk_teardown( mnt_drop_write_file(sc->file); if (sc->flags & XCHK_REAPING_DISABLED) xchk_start_reaping(sc); - if (sc->flags & XCHK_HAS_QUOTAOFFLOCK) { - mutex_unlock(&sc->mp->m_quotainfo->qi_quotaofflock); - sc->flags &= ~XCHK_HAS_QUOTAOFFLOCK; - } if (sc->buf) { kmem_free(sc->buf); sc->buf = NULL; diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h index 80e5026bba44..3de5287e98d8 100644 --- a/fs/xfs/scrub/scrub.h +++ b/fs/xfs/scrub/scrub.h @@ -88,7 +88,6 @@ struct xfs_scrub { /* XCHK state flags grow up from zero, XREP state flags grown down from 2^31 */ #define XCHK_TRY_HARDER (1 << 0) /* can't get resources, try again */ -#define XCHK_HAS_QUOTAOFFLOCK (1 << 1) /* we hold the quotaoff lock */ #define XCHK_REAPING_DISABLED (1 << 2) /* background block reaping paused */ #define XREP_ALREADY_FIXED (1 << 31) /* checking our repair work */ |