From 9f3a080ef19b1c182a8fb1edbfb707fdb811437c Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 14 May 2018 06:34:34 -0700 Subject: xfs: hoist xfs_scrub_agfl_walk to libxfs as xfs_agfl_walk This function is basically a generic AGFL block iterator, so promote it to libxfs ahead of online repair wanting to use it. Signed-off-by: Darrick J. Wong Reviewed-by: Brian Foster --- fs/xfs/scrub/agheader.c | 78 +++++++++---------------------------------------- 1 file changed, 13 insertions(+), 65 deletions(-) (limited to 'fs/xfs/scrub/agheader.c') diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c index 831acc0a328f..1f71793f7db4 100644 --- a/fs/xfs/scrub/agheader.c +++ b/fs/xfs/scrub/agheader.c @@ -38,68 +38,6 @@ #include "scrub/common.h" #include "scrub/trace.h" -/* - * Walk all the blocks in the AGFL. The fn function can return any negative - * error code or XFS_BTREE_QUERY_RANGE_ABORT. - */ -int -xfs_scrub_walk_agfl( - struct xfs_scrub_context *sc, - int (*fn)(struct xfs_scrub_context *, - xfs_agblock_t bno, void *), - void *priv) -{ - struct xfs_agf *agf; - __be32 *agfl_bno; - struct xfs_mount *mp = sc->mp; - unsigned int flfirst; - unsigned int fllast; - int i; - int error; - - agf = XFS_BUF_TO_AGF(sc->sa.agf_bp); - agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, sc->sa.agfl_bp); - flfirst = be32_to_cpu(agf->agf_flfirst); - fllast = be32_to_cpu(agf->agf_fllast); - - /* Nothing to walk in an empty AGFL. */ - if (agf->agf_flcount == cpu_to_be32(0)) - return 0; - - /* first to last is a consecutive list. */ - if (fllast >= flfirst) { - for (i = flfirst; i <= fllast; i++) { - error = fn(sc, be32_to_cpu(agfl_bno[i]), priv); - if (error) - return error; - if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT) - return error; - } - - return 0; - } - - /* first to the end */ - for (i = flfirst; i < xfs_agfl_size(mp); i++) { - error = fn(sc, be32_to_cpu(agfl_bno[i]), priv); - if (error) - return error; - if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT) - return error; - } - - /* the start to last. */ - for (i = 0; i <= fllast; i++) { - error = fn(sc, be32_to_cpu(agfl_bno[i]), priv); - if (error) - return error; - if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT) - return error; - } - - return 0; -} - /* Superblock */ /* Cross-reference with the other btrees. */ @@ -678,6 +616,7 @@ struct xfs_scrub_agfl_info { unsigned int sz_entries; unsigned int nr_entries; xfs_agblock_t *entries; + struct xfs_scrub_context *sc; }; /* Cross-reference with the other btrees. */ @@ -699,12 +638,12 @@ xfs_scrub_agfl_block_xref( /* Scrub an AGFL block. */ STATIC int xfs_scrub_agfl_block( - struct xfs_scrub_context *sc, + struct xfs_mount *mp, xfs_agblock_t agbno, void *priv) { - struct xfs_mount *mp = sc->mp; struct xfs_scrub_agfl_info *sai = priv; + struct xfs_scrub_context *sc = sai->sc; xfs_agnumber_t agno = sc->sa.agno; if (xfs_verify_agbno(mp, agno, agbno) && @@ -715,6 +654,9 @@ xfs_scrub_agfl_block( xfs_scrub_agfl_block_xref(sc, agbno, priv); + if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT) + return XFS_BTREE_QUERY_RANGE_ABORT; + return 0; } @@ -794,6 +736,7 @@ xfs_scrub_agfl( goto out; } memset(&sai, 0, sizeof(sai)); + sai.sc = sc; sai.sz_entries = agflcount; sai.entries = kmem_zalloc(sizeof(xfs_agblock_t) * agflcount, KM_MAYFAIL); @@ -804,7 +747,12 @@ xfs_scrub_agfl( /* Check the blocks in the AGFL. */ xfs_rmap_ag_owner(&sai.oinfo, XFS_RMAP_OWN_AG); - error = xfs_scrub_walk_agfl(sc, xfs_scrub_agfl_block, &sai); + error = xfs_agfl_walk(sc->mp, XFS_BUF_TO_AGF(sc->sa.agf_bp), + sc->sa.agfl_bp, xfs_scrub_agfl_block, &sai); + if (error == XFS_BTREE_QUERY_RANGE_ABORT) { + error = 0; + goto out_free; + } if (error) goto out_free; -- cgit v1.2.3