From e1d8602b6cfb757952827d11c7d26f2a1714fe82 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 2 Dec 2024 10:57:25 -0800 Subject: [PATCH] xfs: keep quota directory inode loaded In the same vein as the previous patch, there's no point in the metapath scrub setup function doing a lookup on the quota metadir just so it can validate that lookups work correctly. Instead, retain the quota directory inode in memory for the lifetime of the mount so that we can check this meaningfully. Cc: # v6.13-rc1 Fixes: 128a055291ebbc ("xfs: scrub quota file metapaths") Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig --- fs/xfs/scrub/metapath.c | 37 ++++++-------------------------- fs/xfs/xfs_qm.c | 47 ++++++++++++++++++++++------------------- fs/xfs/xfs_qm.h | 1 + 3 files changed, 32 insertions(+), 53 deletions(-) diff --git a/fs/xfs/scrub/metapath.c b/fs/xfs/scrub/metapath.c index 80467d6bc7638..c678cba1ffc3f 100644 --- a/fs/xfs/scrub/metapath.c +++ b/fs/xfs/scrub/metapath.c @@ -171,23 +171,13 @@ static int xchk_setup_metapath_quotadir( struct xfs_scrub *sc) { - struct xfs_trans *tp; - struct xfs_inode *dp = NULL; - int error; - - error = xfs_trans_alloc_empty(sc->mp, &tp); - if (error) - return error; + struct xfs_quotainfo *qi = sc->mp->m_quotainfo; - error = xfs_dqinode_load_parent(tp, &dp); - xfs_trans_cancel(tp); - if (error) - return error; + if (!qi || !qi->qi_dirip) + return -ENOENT; - error = xchk_setup_metapath_scan(sc, sc->mp->m_metadirip, - kasprintf(GFP_KERNEL, "quota"), dp); - xfs_irele(dp); - return error; + return xchk_setup_metapath_scan(sc, sc->mp->m_metadirip, + kstrdup("quota", GFP_KERNEL), qi->qi_dirip); } /* Scan a quota inode under the /quota directory. */ @@ -197,10 +187,7 @@ xchk_setup_metapath_dqinode( xfs_dqtype_t type) { struct xfs_quotainfo *qi = sc->mp->m_quotainfo; - struct xfs_trans *tp = NULL; - struct xfs_inode *dp = NULL; struct xfs_inode *ip = NULL; - int error; if (!qi) return -ENOENT; @@ -222,20 +209,8 @@ xchk_setup_metapath_dqinode( if (!ip) return -ENOENT; - error = xfs_trans_alloc_empty(sc->mp, &tp); - if (error) - return error; - - error = xfs_dqinode_load_parent(tp, &dp); - xfs_trans_cancel(tp); - if (error) - return error; - - error = xchk_setup_metapath_scan(sc, dp, + return xchk_setup_metapath_scan(sc, qi->qi_dirip, kstrdup(xfs_dqinode_path(type), GFP_KERNEL), ip); - - xfs_irele(dp); - return error; } #else # define xchk_setup_metapath_quotadir(...) (-ENOENT) diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 61ee110b47d7d..3c0189831f14d 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -241,6 +241,10 @@ xfs_qm_destroy_quotainos( xfs_irele(qi->qi_pquotaip); qi->qi_pquotaip = NULL; } + if (qi->qi_dirip) { + xfs_irele(qi->qi_dirip); + qi->qi_dirip = NULL; + } } /* @@ -646,8 +650,7 @@ xfs_qm_init_timelimits( static int xfs_qm_load_metadir_qinos( struct xfs_mount *mp, - struct xfs_quotainfo *qi, - struct xfs_inode **dpp) + struct xfs_quotainfo *qi) { struct xfs_trans *tp; int error; @@ -656,7 +659,7 @@ xfs_qm_load_metadir_qinos( if (error) return error; - error = xfs_dqinode_load_parent(tp, dpp); + error = xfs_dqinode_load_parent(tp, &qi->qi_dirip); if (error == -ENOENT) { /* no quota dir directory, but we'll create one later */ error = 0; @@ -666,21 +669,21 @@ xfs_qm_load_metadir_qinos( goto out_trans; if (XFS_IS_UQUOTA_ON(mp)) { - error = xfs_dqinode_load(tp, *dpp, XFS_DQTYPE_USER, + error = xfs_dqinode_load(tp, qi->qi_dirip, XFS_DQTYPE_USER, &qi->qi_uquotaip); if (error && error != -ENOENT) goto out_trans; } if (XFS_IS_GQUOTA_ON(mp)) { - error = xfs_dqinode_load(tp, *dpp, XFS_DQTYPE_GROUP, + error = xfs_dqinode_load(tp, qi->qi_dirip, XFS_DQTYPE_GROUP, &qi->qi_gquotaip); if (error && error != -ENOENT) goto out_trans; } if (XFS_IS_PQUOTA_ON(mp)) { - error = xfs_dqinode_load(tp, *dpp, XFS_DQTYPE_PROJ, + error = xfs_dqinode_load(tp, qi->qi_dirip, XFS_DQTYPE_PROJ, &qi->qi_pquotaip); if (error && error != -ENOENT) goto out_trans; @@ -696,34 +699,33 @@ out_trans: STATIC int xfs_qm_create_metadir_qinos( struct xfs_mount *mp, - struct xfs_quotainfo *qi, - struct xfs_inode **dpp) + struct xfs_quotainfo *qi) { int error; - if (!*dpp) { - error = xfs_dqinode_mkdir_parent(mp, dpp); + if (!qi->qi_dirip) { + error = xfs_dqinode_mkdir_parent(mp, &qi->qi_dirip); if (error && error != -EEXIST) return error; } if (XFS_IS_UQUOTA_ON(mp) && !qi->qi_uquotaip) { - error = xfs_dqinode_metadir_create(*dpp, XFS_DQTYPE_USER, - &qi->qi_uquotaip); + error = xfs_dqinode_metadir_create(qi->qi_dirip, + XFS_DQTYPE_USER, &qi->qi_uquotaip); if (error) return error; } if (XFS_IS_GQUOTA_ON(mp) && !qi->qi_gquotaip) { - error = xfs_dqinode_metadir_create(*dpp, XFS_DQTYPE_GROUP, - &qi->qi_gquotaip); + error = xfs_dqinode_metadir_create(qi->qi_dirip, + XFS_DQTYPE_GROUP, &qi->qi_gquotaip); if (error) return error; } if (XFS_IS_PQUOTA_ON(mp) && !qi->qi_pquotaip) { - error = xfs_dqinode_metadir_create(*dpp, XFS_DQTYPE_PROJ, - &qi->qi_pquotaip); + error = xfs_dqinode_metadir_create(qi->qi_dirip, + XFS_DQTYPE_PROJ, &qi->qi_pquotaip); if (error) return error; } @@ -768,7 +770,6 @@ xfs_qm_init_metadir_qinos( struct xfs_mount *mp) { struct xfs_quotainfo *qi = mp->m_quotainfo; - struct xfs_inode *dp = NULL; int error; if (!xfs_has_quota(mp)) { @@ -777,20 +778,22 @@ xfs_qm_init_metadir_qinos( return error; } - error = xfs_qm_load_metadir_qinos(mp, qi, &dp); + error = xfs_qm_load_metadir_qinos(mp, qi); if (error) goto out_err; - error = xfs_qm_create_metadir_qinos(mp, qi, &dp); + error = xfs_qm_create_metadir_qinos(mp, qi); if (error) goto out_err; - xfs_irele(dp); + /* The only user of the quota dir inode is online fsck */ +#if !IS_ENABLED(CONFIG_XFS_ONLINE_SCRUB) + xfs_irele(qi->qi_dirip); + qi->qi_dirip = NULL; +#endif return 0; out_err: xfs_qm_destroy_quotainos(mp->m_quotainfo); - if (dp) - xfs_irele(dp); return error; } diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h index e919c7f62f578..35b64bc3a7a86 100644 --- a/fs/xfs/xfs_qm.h +++ b/fs/xfs/xfs_qm.h @@ -55,6 +55,7 @@ struct xfs_quotainfo { struct xfs_inode *qi_uquotaip; /* user quota inode */ struct xfs_inode *qi_gquotaip; /* group quota inode */ struct xfs_inode *qi_pquotaip; /* project quota inode */ + struct xfs_inode *qi_dirip; /* quota metadir */ struct list_lru qi_lru; int qi_dquots; struct mutex qi_quotaofflock;/* to serialize quotaoff */ -- 2.50.1