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[XFS] move the AIl traversal over to a consistent interface

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With the new cursor interface, it makes sense to make all the traversing
code use the cursor interface and make the old one go away. This means
more of the AIL interfacing is done by passing struct xfs_ail pointers
around the place instead of struct xfs_mount pointers.

We can replace the use of xfs_trans_first_ail() in xfs_log_need_covered()
as it is only checking if the AIL is empty. We can do that with a call to
xfs_trans_ail_tail() instead, where a zero LSN returned indicates and
empty AIL...

SGI-PV: 988143

SGI-Modid: xfs-linux-melb:xfs-kern:32348a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
David Chinner 2008-10-30 17:39:00 +11:00 • committed by Lachlan McIlroy
parent 27d8d5fe0e
commit 5b00f14fbd
5 changed files with 58 additions and 92 deletions
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1
fs/xfs/xfs_trans.h
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@ -971,7 +971,6 @@ void xfs_trans_cancel(xfs_trans_t *, int);
int xfs_trans_ail_init(struct xfs_mount *);
void xfs_trans_ail_destroy(struct xfs_mount *);
void xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *);
void xfs_trans_unlocked_item(struct xfs_mount *,
xfs_log_item_t *);
xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,