diff options
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 22 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.h | 3 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_shared.h | 1 | ||||
| -rw-r--r-- | fs/xfs/scrub/agheader.c | 4 |
4 files changed, 27 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index d9b94bd5f689..d9bef41a3f26 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -972,3 +972,25 @@ xfs_fs_geometry( return 0; } + +/* Read a secondary superblock. */ +int +xfs_sb_read_secondary( + struct xfs_mount *mp, + struct xfs_trans *tp, + xfs_agnumber_t agno, + struct xfs_buf **bpp) +{ + struct xfs_buf *bp; + int error; + + ASSERT(agno != 0 && agno != NULLAGNUMBER); + error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, + XFS_AG_DADDR(mp, agno, XFS_SB_BLOCK(mp)), + XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_sb_buf_ops); + if (error) + return error; + xfs_buf_set_ref(bp, XFS_SSB_REF); + *bpp = bp; + return 0; +} diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h index 63dcd2a1a657..5166d78b2c34 100644 --- a/fs/xfs/libxfs/xfs_sb.h +++ b/fs/xfs/libxfs/xfs_sb.h @@ -37,5 +37,8 @@ extern void xfs_sb_quota_from_disk(struct xfs_sb *sbp); #define XFS_FS_GEOM_MAX_STRUCT_VER (4) extern int xfs_fs_geometry(struct xfs_sb *sbp, struct xfs_fsop_geom *geo, int struct_version); +extern int xfs_sb_read_secondary(struct xfs_mount *mp, + struct xfs_trans *tp, xfs_agnumber_t agno, + struct xfs_buf **bpp); #endif /* __XFS_SB_H__ */ diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index 8efc06e62b13..ae99c260adb1 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -112,6 +112,7 @@ void xfs_log_get_max_trans_res(struct xfs_mount *mp, #define XFS_ATTR_BTREE_REF 1 #define XFS_DQUOT_REF 1 #define XFS_REFC_BTREE_REF 1 +#define XFS_SSB_REF 0 /* * Flags for xfs_trans_ichgtime(). diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c index 08a1f013d92c..831acc0a328f 100644 --- a/fs/xfs/scrub/agheader.c +++ b/fs/xfs/scrub/agheader.c @@ -157,9 +157,7 @@ xfs_scrub_superblock( if (agno == 0) return 0; - error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp, - XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), - XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_sb_buf_ops); + error = xfs_sb_read_secondary(mp, sc->tp, agno, &bp); /* * The superblock verifier can return several different error codes * if it thinks the superblock doesn't look right. For a mount these |