diff options
| -rw-r--r-- | fs/xfs/Makefile | 2 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 5 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_fs.h | 4 | ||||
| -rw-r--r-- | fs/xfs/scrub/common.h | 9 | ||||
| -rw-r--r-- | fs/xfs/scrub/rtbitmap.c | 108 | ||||
| -rw-r--r-- | fs/xfs/scrub/scrub.c | 10 | ||||
| -rw-r--r-- | fs/xfs/scrub/scrub.h | 15 |
7 files changed, 152 insertions, 1 deletions
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 174c05d36db5..fad8418791ed 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -159,4 +159,6 @@ xfs-y += $(addprefix scrub/, \ scrub.o \ symlink.o \ ) + +xfs-$(CONFIG_XFS_RT) += scrub/rtbitmap.o endif diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 154c3dd6499b..d4d9bef20c3a 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -315,6 +315,11 @@ static inline bool xfs_sb_good_version(struct xfs_sb *sbp) return false; } +static inline bool xfs_sb_version_hasrealtime(struct xfs_sb *sbp) +{ + return sbp->sb_rblocks > 0; +} + /* * Detect a mismatched features2 field. Older kernels read/wrote * this into the wrong slot, so to be safe we keep them in sync. diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index 7444094072d5..f8bac9299335 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -502,9 +502,11 @@ struct xfs_scrub_metadata { #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ +#define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ +#define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ /* Number of scrub subcommands. */ -#define XFS_SCRUB_TYPE_NR 19 +#define XFS_SCRUB_TYPE_NR 21 /* i: Repair this metadata. */ #define XFS_SCRUB_IFLAG_REPAIR (1 << 0) diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h index 0542e7d4356a..5b561e2e411a 100644 --- a/fs/xfs/scrub/common.h +++ b/fs/xfs/scrub/common.h @@ -101,6 +101,15 @@ int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, struct xfs_inode *ip); int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, struct xfs_inode *ip); +#ifdef CONFIG_XFS_RT +int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); +#else +static inline int +xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip) +{ + return -ENOENT; +} +#endif 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, diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c new file mode 100644 index 000000000000..c6fedb698008 --- /dev/null +++ b/fs/xfs/scrub/rtbitmap.c @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2017 Oracle. All Rights Reserved. + * + * Author: Darrick J. Wong <darrick.wong@oracle.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include "xfs.h" +#include "xfs_fs.h" +#include "xfs_shared.h" +#include "xfs_format.h" +#include "xfs_trans_resv.h" +#include "xfs_mount.h" +#include "xfs_defer.h" +#include "xfs_btree.h" +#include "xfs_bit.h" +#include "xfs_log_format.h" +#include "xfs_trans.h" +#include "xfs_sb.h" +#include "xfs_alloc.h" +#include "xfs_rtalloc.h" +#include "xfs_inode.h" +#include "scrub/xfs_scrub.h" +#include "scrub/scrub.h" +#include "scrub/common.h" +#include "scrub/trace.h" + +/* Set us up with the realtime metadata locked. */ +int +xfs_scrub_setup_rt( + struct xfs_scrub_context *sc, + struct xfs_inode *ip) +{ + struct xfs_mount *mp = sc->mp; + int error = 0; + + /* + * If userspace gave us an AG number or inode data, they don't + * know what they're doing. Get out. + */ + if (sc->sm->sm_agno || sc->sm->sm_ino || sc->sm->sm_gen) + return -EINVAL; + + error = xfs_scrub_setup_fs(sc, ip); + if (error) + return error; + + sc->ilock_flags = XFS_ILOCK_EXCL | XFS_ILOCK_RTBITMAP; + sc->ip = mp->m_rbmip; + xfs_ilock(sc->ip, sc->ilock_flags); + + return 0; +} + +/* Realtime bitmap. */ + +/* Scrub a free extent record from the realtime bitmap. */ +STATIC int +xfs_scrub_rtbitmap_rec( + struct xfs_trans *tp, + struct xfs_rtalloc_rec *rec, + void *priv) +{ + struct xfs_scrub_context *sc = priv; + + if (rec->ar_startblock + rec->ar_blockcount <= rec->ar_startblock || + !xfs_verify_rtbno(sc->mp, rec->ar_startblock) || + !xfs_verify_rtbno(sc->mp, rec->ar_startblock + + rec->ar_blockcount - 1)) + xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0); + return 0; +} + +/* Scrub the realtime bitmap. */ +int +xfs_scrub_rtbitmap( + struct xfs_scrub_context *sc) +{ + int error; + + error = xfs_rtalloc_query_all(sc->tp, xfs_scrub_rtbitmap_rec, sc); + if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error)) + goto out; + +out: + return error; +} + +/* Scrub the realtime summary. */ +int +xfs_scrub_rtsummary( + struct xfs_scrub_context *sc) +{ + /* XXX: implement this some day */ + return -ENOENT; +} diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c index e9c6635f7d5a..7fd5e926e99c 100644 --- a/fs/xfs/scrub/scrub.c +++ b/fs/xfs/scrub/scrub.c @@ -247,6 +247,16 @@ static const struct xfs_scrub_meta_ops meta_scrub_ops[] = { .setup = xfs_scrub_setup_parent, .scrub = xfs_scrub_parent, }, + { /* realtime bitmap */ + .setup = xfs_scrub_setup_rt, + .scrub = xfs_scrub_rtbitmap, + .has = xfs_sb_version_hasrealtime, + }, + { /* realtime summary */ + .setup = xfs_scrub_setup_rt, + .scrub = xfs_scrub_rtsummary, + .has = xfs_sb_version_hasrealtime, + }, }; /* This isn't a stable feature, warn once per day. */ diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h index a26481070eaf..9aff4e2365ec 100644 --- a/fs/xfs/scrub/scrub.h +++ b/fs/xfs/scrub/scrub.h @@ -87,5 +87,20 @@ int xfs_scrub_directory(struct xfs_scrub_context *sc); int xfs_scrub_xattr(struct xfs_scrub_context *sc); int xfs_scrub_symlink(struct xfs_scrub_context *sc); int xfs_scrub_parent(struct xfs_scrub_context *sc); +#ifdef CONFIG_XFS_RT +int xfs_scrub_rtbitmap(struct xfs_scrub_context *sc); +int xfs_scrub_rtsummary(struct xfs_scrub_context *sc); +#else +static inline int +xfs_scrub_rtbitmap(struct xfs_scrub_context *sc) +{ + return -ENOENT; +} +static inline int +xfs_scrub_rtsummary(struct xfs_scrub_context *sc) +{ + return -ENOENT; +} +#endif #endif /* __XFS_SCRUB_SCRUB_H__ */ |