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authorMikulas Patocka <mpatocka@redhat.com>2008-08-15 10:20:02 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:03 +0200
commit5df97b91b5d7ed426034fcc84cb6e7cf682b8838 (patch)
tree727b9fb778f72d2b1ff44c007fb5209bacf67f4a /fs/bio.c
parentb8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5 (diff)
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drop vmerge accounting
Remove hw_segments field from struct bio and struct request. Without virtual merge accounting they have no purpose. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/bio.c')
-rw-r--r--fs/bio.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 4ac7c59d1c6..bee4deca774 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -208,14 +208,6 @@ inline int bio_phys_segments(struct request_queue *q, struct bio *bio)
return bio->bi_phys_segments;
}
-inline int bio_hw_segments(struct request_queue *q, struct bio *bio)
-{
- if (unlikely(!bio_flagged(bio, BIO_SEG_VALID)))
- blk_recount_segments(q, bio);
-
- return bio->bi_hw_segments;
-}
-
/**
* __bio_clone - clone a bio
* @bio: destination bio
@@ -350,7 +342,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
*/
while (bio->bi_phys_segments >= q->max_phys_segments
- || bio->bi_hw_segments >= q->max_hw_segments) {
+ || bio->bi_phys_segments >= q->max_hw_segments) {
if (retried_segments)
return 0;
@@ -399,7 +391,6 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
bio->bi_vcnt++;
bio->bi_phys_segments++;
- bio->bi_hw_segments++;
done:
bio->bi_size += len;
return len;
@@ -1381,7 +1372,6 @@ EXPORT_SYMBOL(bio_init);
EXPORT_SYMBOL(__bio_clone);
EXPORT_SYMBOL(bio_clone);
EXPORT_SYMBOL(bio_phys_segments);
-EXPORT_SYMBOL(bio_hw_segments);
EXPORT_SYMBOL(bio_add_page);
EXPORT_SYMBOL(bio_add_pc_page);
EXPORT_SYMBOL(bio_get_nr_vecs);