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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-29 22:24:44 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-30 08:03:14 -0700 |
| commit | 51863d7dd77dd27a35b12b37c7caf8679903b6ae (patch) | |
| tree | 462c165bfb2c16e70390f79688244cfa2a1d2abe /fs | |
| parent | fs: xfs: Change return type to vm_fault_t (diff) | |
| download | linux-dev-51863d7dd77dd27a35b12b37c7caf8679903b6ae.tar.xz linux-dev-51863d7dd77dd27a35b12b37c7caf8679903b6ae.zip | |
xfs: grab the per-ag structure whenever relevant
Grab and hold the per-AG data across a scrub run whenever relevant.
This helps us avoid repeated trips through rcu and the radix tree
in the repair code.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/scrub/common.c | 17 | ||||
| -rw-r--r-- | fs/xfs/scrub/common.h | 1 | ||||
| -rw-r--r-- | fs/xfs/scrub/scrub.h | 1 |
3 files changed, 19 insertions, 0 deletions
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c index 518bff2be0c9..d3e5adc96411 100644 --- a/fs/xfs/scrub/common.c +++ b/fs/xfs/scrub/common.c @@ -541,6 +541,10 @@ xfs_scrub_ag_free( xfs_trans_brelse(sc->tp, sa->agi_bp); sa->agi_bp = NULL; } + if (sa->pag) { + xfs_perag_put(sa->pag); + sa->pag = NULL; + } sa->agno = NULLAGNUMBER; } @@ -568,6 +572,19 @@ xfs_scrub_ag_init( return xfs_scrub_ag_btcur_init(sc, sa); } +/* + * Grab the per-ag structure if we haven't already gotten it. Teardown of the + * xfs_scrub_ag will release it for us. + */ +void +xfs_scrub_perag_get( + struct xfs_mount *mp, + struct xfs_scrub_ag *sa) +{ + if (!sa->pag) + sa->pag = xfs_perag_get(mp, sa->agno); +} + /* Per-scrubber setup functions */ /* diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h index a660087b606e..fbb91a7144fd 100644 --- a/fs/xfs/scrub/common.h +++ b/fs/xfs/scrub/common.h @@ -123,6 +123,7 @@ xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip) void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, struct xfs_scrub_ag *sa); +void xfs_scrub_perag_get(struct xfs_mount *mp, struct xfs_scrub_ag *sa); int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno, struct xfs_buf **agi, struct xfs_buf **agf, struct xfs_buf **agfl); diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h index 2f89a84a0e10..636424d5e2ee 100644 --- a/fs/xfs/scrub/scrub.h +++ b/fs/xfs/scrub/scrub.h @@ -51,6 +51,7 @@ struct xfs_scrub_meta_ops { /* Buffer pointers and btree cursors for an entire AG. */ struct xfs_scrub_ag { xfs_agnumber_t agno; + struct xfs_perag *pag; /* AG btree roots */ struct xfs_buf *agf_bp; |