The patch titled
device mapper not reporting no-barrier-support?
has been added to the -mm tree. Its filename is
device-mapper-not-reporting-no-barrier-support.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: device mapper not reporting no-barrier-support?
From: Jens Axboe <jens.axboe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
block/blk-barrier.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff -puN block/blk-barrier.c~device-mapper-not-reporting-no-barrier-support block/blk-barrier.c
--- a/block/blk-barrier.c~device-mapper-not-reporting-no-barrier-support
+++ a/block/blk-barrier.c
@@ -259,8 +259,11 @@ int blk_do_ordered(struct request_queue
static void bio_end_empty_barrier(struct bio *bio, int err)
{
- if (err)
+ if (err) {
+ if (err == -EOPNOTSUPP)
+ set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);
clear_bit(BIO_UPTODATE, &bio->bi_flags);
+ }
complete(bio->bi_private);
}
@@ -309,7 +312,9 @@ int blkdev_issue_flush(struct block_devi
*error_sector = bio->bi_sector;
ret = 0;
- if (!bio_flagged(bio, BIO_UPTODATE))
+ if (bio_flagged(bio, BIO_EOPNOTSUPP))
+ ret = -EOPNOTSUPP;
+ else if (!bio_flagged(bio, BIO_UPTODATE))
ret = -EIO;
bio_put(bio);
_
Patches currently in -mm which might be from jens.axboe@xxxxxxxxxx are
drivers-block-viodasdc-use-field_sizeof.patch
git-block.patch
git-block-git-rejects.patch
remove-ps2esdi.patch
kconfig-cleanup-block-kconfig-help-descriptions.patch
block-fix-shadowed-variable-warning-in-blk-mapc.patch
block-remove-extern-on-function-definition.patch
use-page_cache_xxx-in-fs-splicec.patch
cciss-remove-read_ahead-define-and-use-block-layer-defaults.patch
kconfig-cleanup-block-kconfigiosched-help-descriptions.patch
device-mapper-not-reporting-no-barrier-support.patch
cciss-procfs-updates-to-display-info-about-many-volumes.patch
block-genhdc-check-class_register-return-value.patch
xen-make-blkif_getgeo-static.patch
reiser4.patch
jens-broke-reiser4patch-added-to-mm-tree.patch
reiser4-specify-splice-file-operations.patch
-
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