diff mbox

[v1,09/27] target: avoid to access .bi_vcnt directly

Message ID 1460635375-28282-10-git-send-email-tom.leiming@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ming Lei April 14, 2016, 12:02 p.m. UTC 
When the bio is full, bio_add_pc_page() will return zero,
so use this way to handle full bio.

Also replace access to .bi_vcnt for pr_debug() with bio_segments().

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
 drivers/target/target_core_pscsi.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index de18790..66320e8 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -945,13 +945,9 @@  pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 
 			rc = bio_add_pc_page(pdv->pdv_sd->request_queue,
 					bio, page, bytes, off);
-			if (rc != bytes)
-				goto fail;
-
 			pr_debug("PSCSI: bio->bi_vcnt: %d nr_vecs: %d\n",
-				bio->bi_vcnt, nr_vecs);
-
-			if (bio->bi_vcnt > nr_vecs) {
+				bio_segments(bio), nr_vecs);
+			if (rc != bytes) {
 				pr_debug("PSCSI: Reached bio->bi_vcnt max:"
 					" %d i: %d bio: %p, allocating another"
 					" bio\n", bio->bi_vcnt, i, bio);