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xfs: attach inodes to the cluster buffer when dirtied

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Rather than attach inodes to the cluster buffer just when we are
doing IO, attach the inodes to the cluster buffer when they are
dirtied. The means the buffer always carries a list of dirty inodes
that reference it, and we can use that list to make more fundamental
changes to inode writeback that aren't otherwise possible.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Dave Chinner
2020-06-29 14:49:18 -07:00
committed by Darrick J. Wong
parent 71e3e35646
commit 48d55e2ae3
5 changed files with 27 additions and 24 deletions
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9
fs/xfs/libxfs/xfs_trans_inode.c
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@@ -163,13 +163,16 @@ xfs_trans_log_inode(
/*
* We need an explicit buffer reference for the log item but
* don't want the buffer to remain attached to the transaction.
* Hold the buffer but release the transaction reference.
* Hold the buffer but release the transaction reference once
* we've attached the inode log item to the buffer log item
* list.
*/
xfs_buf_hold(bp);
xfs_trans_brelse(tp, bp);
spin_lock(&iip->ili_lock);
iip->ili_item.li_buf = bp;
bp->b_flags |= _XBF_INODES;
list_add_tail(&iip->ili_item.li_bio_list, &bp->b_li_list);
xfs_trans_brelse(tp, bp);
}
/*