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xfs: move the buffer retry logic to xfs_buf.c

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Move the buffer retry state machine logic to xfs_buf.c and call it once
from xfs_ioend instead of duplicating it three times for the three kinds
of buffers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2020-09-01 10:55:29 -07:00 • committed by Darrick J. Wong
parent 23fb5a93c2
commit 664ffb8a42
10 changed files with 215 additions and 279 deletions
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6
fs/xfs/xfs_inode.c
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@ -3542,8 +3542,8 @@ xfs_iflush(
*
* What we do is move the bits to the ili_last_fields field. When
* logging the inode, these bits are moved back to the ili_fields field.
* In the xfs_iflush_done() routine we clear ili_last_fields, since we
* know that the information those bits represent is permanently on
* In the xfs_buf_inode_iodone() routine we clear ili_last_fields, since
* we know that the information those bits represent is permanently on
* disk. As long as the flush completes before the inode is logged
* again, then both ili_fields and ili_last_fields will be cleared.
*/
@ -3557,7 +3557,7 @@ flush_out:
/*
* Store the current LSN of the inode so that we can tell whether the
* item has moved in the AIL from xfs_iflush_done().
* item has moved in the AIL from xfs_buf_inode_iodone().
*/
xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
&iip->ili_item.li_lsn);