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| author | Christoph Hellwig <hch@lst.de> | 2008-11-28 14:23:37 +1100 |
|---|---|---|
| committer | Niv Sardi <xaiki@sgi.com> | 2008-12-01 11:37:15 +1100 |
| commit | 5e1be0fb1a3950597aeda448698e85b0595a2e92 (patch) | |
| tree | e9cb423d6f253b689a9e0cfb4a1d429de37959cd /fs/xfs/xfs_ag.h | |
| parent | 26c5295135d10fc90cbf160adfda392d91f58279 (diff) | |
| download | linux-5e1be0fb1a3950597aeda448698e85b0595a2e92.tar.gz linux-5e1be0fb1a3950597aeda448698e85b0595a2e92.tar.bz2 linux-5e1be0fb1a3950597aeda448698e85b0595a2e92.zip | |
[XFS] factor out xfs_read_agi helper
Add a helper to read the AGI header and perform basic verification.
Based on hunks from a larger patch from Dave Chinner.
(First sent on Juli 23rd)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_ag.h')
| -rw-r--r-- | fs/xfs/xfs_ag.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index 2bfd86329141..f4a315390c61 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -142,6 +142,9 @@ typedef struct xfs_agi { #define XFS_AGI_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGI_DADDR(mp)) #define XFS_BUF_TO_AGI(bp) ((xfs_agi_t *)XFS_BUF_PTR(bp)) +extern int xfs_read_agi(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_agnumber_t agno, struct xfs_buf **bpp); + /* * The third a.g. block contains the a.g. freelist, an array * of block pointers to blocks owned by the allocation btree code. |