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authorFrom: Christoph Hellwig <hch@lst.de>2008-11-28 14:23:38 +1100
committerNiv Sardi <xaiki@sgi.com>2008-12-01 11:37:20 +1100
commit4805621a37d9b2b16641b5c68597651419e9e252 (patch)
treea3c63689100a8c7ca2eb72efe4036f7863c34e12 /fs/xfs/xfs_ag.h
parent5e1be0fb1a3950597aeda448698e85b0595a2e92 (diff)
[XFS] factor out xfs_read_agf helper
Add a helper to read the AGF 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.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index f4a315390c61..f2e21817a226 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -91,6 +91,8 @@ typedef struct xfs_agf {
#define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp))
#define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)XFS_BUF_PTR(bp))
+extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp,
+ xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
/*
* Size of the unlinked inode hash table in the agi.