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authorShaohua Li <shli@fb.com>2017-09-21 20:23:35 +0300
committerShaohua Li <shli@fb.com>2017-09-28 06:07:40 +0300
commit393debc23c7820211d1c8253dd6a8408a7628fe7 (patch)
treef7306f2a4c7e664e27758edfafb23616ca0c90f2 /drivers/md/md.h
parent4a704d6db0ee4a349d5d523813a718e429b4914d (diff)
downloadlinux-393debc23c7820211d1c8253dd6a8408a7628fe7.tar.xz
md: separate request handling
With commit cc27b0c78c79, pers->make_request could bail out without handling the bio. If that happens, we should retry. The commit fixes md_make_request but not other call sites. Separate the request handling part, so other call sites can use it. Reported-by: Nate Dailey <nate.dailey@stratus.com> Fix: cc27b0c78c79(md: fix deadlock between mddev_suspend() and md_write_start()) Cc: stable@vger.kernel.org Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 561d22b9a9a8..d8287d3cd1bf 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -692,6 +692,7 @@ extern void md_stop_writes(struct mddev *mddev);
extern int md_rdev_init(struct md_rdev *rdev);
extern void md_rdev_clear(struct md_rdev *rdev);
+extern void md_handle_request(struct mddev *mddev, struct bio *bio);
extern void mddev_suspend(struct mddev *mddev);
extern void mddev_resume(struct mddev *mddev);
extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,