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From: Christoph Hellwig <hch@lst.de>
To: Shaohua Li <shli@fb.com>, neilb@suse.de
Cc: linux-raid@vger.kernel.org, Kernel-team@fb.com, dan.j.williams@intel.com
Subject: [PATCH 01/12] raid5-cache: port to 4.3-rc
Date: Sat, 12 Sep 2015 08:17:07 +0200	[thread overview]
Message-ID: <1442038638-6947-2-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1442038638-6947-1-git-send-email-hch@lst.de>

Port for changes in the block layer:  bio endio callers don't get passed
a separate error, and bio_get_nr_vecs is gone.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/md/raid5-cache.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 785749b1..c345479 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -222,7 +222,8 @@ static void __r5l_set_io_unit_state(struct r5l_io_unit *io,
 	io->state = state;
 }
 
-static inline void r5l_log_endio(struct bio *bio, int error)
+/* XXX: totally ignores I/O errors */
+static void r5l_log_endio(struct bio *bio)
 {
 	struct r5l_io_unit *io = bio->bi_private;
 	struct r5l_log *log = io->log;
@@ -288,8 +289,7 @@ static struct r5l_io_unit *r5l_new_meta(struct r5l_log *log)
 	io->meta_offset = sizeof(struct r5l_meta_block);
 	io->seq = log->seq;
 
-	bio = bio_kmalloc(GFP_NOIO | __GFP_NOFAIL,
-		bio_get_nr_vecs(log->rdev->bdev));
+	bio = bio_kmalloc(GFP_NOIO | __GFP_NOFAIL, BIO_MAX_PAGES);
 	io->current_bio = bio;
 	bio->bi_rw = WRITE;
 	bio->bi_bdev = log->rdev->bdev;
@@ -358,8 +358,7 @@ static void r5l_append_payload_page(struct r5l_log *log, struct page *page)
 alloc_bio:
 	if (!io->current_bio) {
 		struct bio *bio;
-		bio = bio_kmalloc(GFP_NOIO | __GFP_NOFAIL,
-			bio_get_nr_vecs(log->rdev->bdev));
+		bio = bio_kmalloc(GFP_NOIO | __GFP_NOFAIL, BIO_MAX_PAGES);
 		bio->bi_rw = WRITE;
 		bio->bi_bdev = log->rdev->bdev;
 		bio->bi_iter.bi_sector = log->log_start;
@@ -518,7 +517,7 @@ int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio)
 	 * don't need to flush again
 	 * */
 	if (bio->bi_iter.bi_size == 0) {
-		bio_endio(bio, 0);
+		bio_endio(bio);
 		return 0;
 	}
 	bio->bi_rw &= ~REQ_FLUSH;
@@ -581,7 +580,7 @@ void r5l_stripe_write_finished(struct stripe_head *sh)
 		__r5l_stripe_write_finished(io);
 }
 
-static void r5l_log_flush_endio(struct bio *bio, int error)
+static void r5l_log_flush_endio(struct bio *bio)
 {
 	struct r5l_log *log = container_of(bio, struct r5l_log,
 		flush_bio);
-- 
1.9.1


  reply	other threads:[~2015-09-12  6:17 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-12  6:17 raid5-cache I/O path improvements V2 Christoph Hellwig
2015-09-12  6:17 ` Christoph Hellwig [this message]
2015-09-12  6:17 ` [PATCH 02/12] raid5-cache: free I/O units earlier Christoph Hellwig
2015-09-15  7:00   ` Neil Brown
2015-09-17  1:50     ` Christoph Hellwig
2015-09-15  8:07   ` Neil Brown
2015-09-17  1:48     ` Christoph Hellwig
2015-09-12  6:17 ` [PATCH 03/12] raid5-cache: rename flushed_ios to finished_ios Christoph Hellwig
2015-09-12  6:17 ` [PATCH 04/12] raid5-cache: factor out a helper to run all stripes for an I/O unit Christoph Hellwig
2015-09-12  6:17 ` [PATCH 05/12] raid5-cache: use FUA writes for the log Christoph Hellwig
2015-09-12  6:17 ` [PATCH 06/12] raid5-cache: clean up r5l_get_meta Christoph Hellwig
2015-09-12  6:17 ` [PATCH 07/12] raid5-cache: refactor bio allocation Christoph Hellwig
2015-09-12  6:17 ` [PATCH 08/12] raid5-cache: take rdev->data_offset into account early on Christoph Hellwig
2015-09-12  6:17 ` [PATCH 09/12] raid5-cache: inline r5l_alloc_io_unit into r5l_new_meta Christoph Hellwig
2015-09-12  6:17 ` [PATCH 10/12] raid5-cache: new helper: r5_reserve_log_entry Christoph Hellwig
2015-09-12  6:17 ` [PATCH 11/12] raid5-cache: small log->seq cleanup Christoph Hellwig
2015-09-12  6:17 ` [PATCH 12/12] raid5-cache: use bio chaining Christoph Hellwig
2015-09-14 19:11 ` raid5-cache I/O path improvements V2 Shaohua Li
2015-09-15  7:23   ` Neil Brown
2015-09-15 21:54     ` Shaohua Li
2015-09-17  1:53       ` Christoph Hellwig
2015-09-28 14:01       ` Christoph Hellwig
2015-09-30  5:39         ` Neil Brown
2015-09-30 15:00           ` Christoph Hellwig

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