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block: remove per-queue plugging

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Code has been converted over to the new explicit on-stack plugging,
and delay users have been converted to use the new API for that.
So lets kill off the old plugging along with aops->sync_page().

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Jens Axboe
2011-03-10 08:52:07 +01:00
parent 73c1010119
commit 7eaceaccab
119 changed files with 151 additions and 1269 deletions
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13
fs/xfs/linux-2.6/xfs_buf.c
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@@ -991,7 +991,7 @@ xfs_buf_lock(
if (atomic_read(&bp->b_pin_count) && (bp->b_flags & XBF_STALE))
xfs_log_force(bp->b_target->bt_mount, 0);
if (atomic_read(&bp->b_io_remaining))
blk_run_address_space(bp->b_target->bt_mapping);
blk_flush_plug(current);
down(&bp->b_sema);
XB_SET_OWNER(bp);
@@ -1035,9 +1035,7 @@ xfs_buf_wait_unpin(
set_current_state(TASK_UNINTERRUPTIBLE);
if (atomic_read(&bp->b_pin_count) == 0)
break;
if (atomic_read(&bp->b_io_remaining))
blk_run_address_space(bp->b_target->bt_mapping);
schedule();
io_schedule();
}
remove_wait_queue(&bp->b_waiters, &wait);
set_current_state(TASK_RUNNING);
@@ -1443,7 +1441,7 @@ xfs_buf_iowait(
trace_xfs_buf_iowait(bp, _RET_IP_);
if (atomic_read(&bp->b_io_remaining))
blk_run_address_space(bp->b_target->bt_mapping);
blk_flush_plug(current);
wait_for_completion(&bp->b_iowait);
trace_xfs_buf_iowait_done(bp, _RET_IP_);
@@ -1667,7 +1665,6 @@ xfs_mapping_buftarg(
struct inode *inode;
struct address_space *mapping;
static const struct address_space_operations mapping_aops = {
.sync_page = block_sync_page,
.migratepage = fail_migrate_page,
};
@@ -1948,7 +1945,7 @@ xfsbufd(
count++;
}
if (count)
blk_run_address_space(target->bt_mapping);
blk_flush_plug(current);
} while (!kthread_should_stop());
@@ -1996,7 +1993,7 @@ xfs_flush_buftarg(
if (wait) {
/* Expedite and wait for IO to complete. */
blk_run_address_space(target->bt_mapping);
blk_flush_plug(current);
while (!list_empty(&wait_list)) {
bp = list_first_entry(&wait_list, struct xfs_buf, b_list);