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xfs: use bio op accessors 

Separate the op from the rq_flag_bits and have xfs
set/get the bio using bio_set_op_attrs/bio_op.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Mike Christie 2016-06-05 14:31:57 -05:00 committed by Jens Axboe
parent e1b1afa6f8
commit 50bfcd0cbf
2 changed files with 18 additions and 20 deletions
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12
fs/xfs/xfs_aops.c
View File

@ -438,10 +438,8 @@ xfs_submit_ioend(
ioend->io_bio->bi_private = ioend;
ioend->io_bio->bi_end_io = xfs_end_bio;
if (wbc->sync_mode == WB_SYNC_ALL)
ioend->io_bio->bi_rw = WRITE_SYNC;
else
ioend->io_bio->bi_rw = WRITE;
bio_set_op_attrs(ioend->io_bio, REQ_OP_WRITE,
(wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0);
/*
* If we are failing the IO now, just mark the ioend with an
* error and finish it. This will run IO completion immediately
@ -512,10 +510,8 @@ xfs_chain_bio(
bio_chain(ioend->io_bio, new);
bio_get(ioend->io_bio); /* for xfs_destroy_ioend */
if (wbc->sync_mode == WB_SYNC_ALL)
ioend->io_bio->bi_rw = WRITE_SYNC;
else
ioend->io_bio->bi_rw = WRITE;
bio_set_op_attrs(ioend->io_bio, REQ_OP_WRITE,
(wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0);
submit_bio(ioend->io_bio);
ioend->io_bio = new;
}

26
fs/xfs/xfs_buf.c
View File

@ -1127,7 +1127,8 @@ xfs_buf_ioapply_map(
int map,
int *buf_offset,
int *count,
int rw)
int op,
int op_flags)
{
int page_index;
int total_nr_pages = bp->b_page_count;
@ -1166,7 +1167,7 @@ next_chunk:
bio->bi_iter.bi_sector = sector;
bio->bi_end_io = xfs_buf_bio_end_io;
bio->bi_private = bp;
bio->bi_rw = rw;
bio_set_op_attrs(bio, op, op_flags);
for (; size && nr_pages; nr_pages--, page_index++) {
int rbytes, nbytes = PAGE_SIZE - offset;
@ -1210,7 +1211,8 @@ _xfs_buf_ioapply(
struct xfs_buf *bp)
{
struct blk_plug plug;
int rw;
int op;
int op_flags = 0;
int offset;
int size;
int i;
@ -1229,14 +1231,13 @@ _xfs_buf_ioapply(
bp->b_ioend_wq = bp->b_target->bt_mount->m_buf_workqueue;
if (bp->b_flags & XBF_WRITE) {
op = REQ_OP_WRITE;
if (bp->b_flags & XBF_SYNCIO)
rw = WRITE_SYNC;
else
rw = WRITE;
op_flags = WRITE_SYNC;
if (bp->b_flags & XBF_FUA)
rw |= REQ_FUA;
op_flags |= REQ_FUA;
if (bp->b_flags & XBF_FLUSH)
rw |= REQ_FLUSH;
op_flags |= REQ_FLUSH;
/*
* Run the write verifier callback function if it exists. If
@ -1266,13 +1267,14 @@ _xfs_buf_ioapply(
}
}
} else if (bp->b_flags & XBF_READ_AHEAD) {
rw = READA;
op = REQ_OP_READ;
op_flags = REQ_RAHEAD;
} else {
rw = READ;
op = REQ_OP_READ;
}
/* we only use the buffer cache for meta-data */
rw |= REQ_META;
op_flags |= REQ_META;
/*
* Walk all the vectors issuing IO on them. Set up the initial offset
@ -1284,7 +1286,7 @@ _xfs_buf_ioapply(
size = BBTOB(bp->b_io_length);
blk_start_plug(&plug);
for (i = 0; i < bp->b_map_count; i++) {
xfs_buf_ioapply_map(bp, i, &offset, &size, rw);
xfs_buf_ioapply_map(bp, i, &offset, &size, op, op_flags);
if (bp->b_error)
break;
if (size <= 0)