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[XFS] merge xfs_imap into xfs_dilocate

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xfs_imap is the only caller of xfs_dilocate and doesn't add any significant
value.  Merge the two functions and document the various cases we have for
inode cluster lookup in the new xfs_imap.

Also remove the unused im_agblkno and im_ioffset fields from struct xfs_imap
while we're at it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
This commit is contained in:
Christoph Hellwig
2008-11-28 14:23:41 +11:00
committed by Niv Sardi
parent a194189503
commit 94e1b69d1a
5 changed files with 88 additions and 120 deletions
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10
fs/xfs/xfs_ialloc.h
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@@ -20,6 +20,7 @@
struct xfs_buf;
struct xfs_dinode;
struct xfs_imap;
struct xfs_mount;
struct xfs_trans;
@@ -104,17 +105,14 @@ xfs_difree(
xfs_ino_t *first_ino); /* first inode in deleted cluster */
/*
* Return the location of the inode in bno/len/off,
* for mapping it into a buffer.
* Return the location of the inode in imap, for mapping it into a buffer.
*/
int
xfs_dilocate(
xfs_imap(
struct xfs_mount *mp, /* file system mount structure */
struct xfs_trans *tp, /* transaction pointer */
xfs_ino_t ino, /* inode to locate */
xfs_fsblock_t *bno, /* output: block containing inode */
int *len, /* output: num blocks in cluster*/
int *off, /* output: index in block of inode */
struct xfs_imap *imap, /* location map structure */
uint flags); /* flags for inode btree lookup */
/*