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block: get rid of bio_rw and READA

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These two are confusing leftover of the old world order, combining
values of the REQ_OP_ and REQ_ namespaces.  For callers that don't
special case we mostly just replace bi_rw with bio_data_dir or
op_is_write, except for the few cases where a switch over the REQ_OP_
values makes more sense.  Any check for READA is replaced with an
explicit check for REQ_RAHEAD.  Also remove the READA alias for
REQ_RAHEAD.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Mike Christie <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2016-07-19 11:28:41 +02:00 • committed by Jens Axboe
commit 70246286e9
26 changed files with 95 additions and 96 deletions
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2
fs/reiserfs/stree.c
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@ -551,7 +551,7 @@ static int search_by_key_reada(struct super_block *s,
if (!buffer_uptodate(bh[j])) {
if (depth == -1)
depth = reiserfs_write_unlock_nested(s);
ll_rw_block(REQ_OP_READ, READA, 1, bh + j);
ll_rw_block(REQ_OP_READ, REQ_RAHEAD, 1, bh + j);
}
brelse(bh[j]);
}