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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-08 11:51:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-08 11:51:05 -0700
commitebb37277796269da36a8bc5d72ed1e8e1fb7d34b (patch)
tree0ded627a62a5cec70b18d12825dd858855c135d3 /drivers/block/drbd/drbd_req.h
parent4de13d7aa8f4d02f4dc99d4609575659f92b3c5a (diff)
parentf50efd2fdbd9b35b11f5778ed85beb764184bda9 (diff)
Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe: "It might look big in volume, but when categorized, not a lot of drivers are touched. The pull request contains: - mtip32xx fixes from Micron. - A slew of drbd updates, this time in a nicer series. - bcache, a flash/ssd caching framework from Kent. - Fixes for cciss" * 'for-3.10/drivers' of git://git.kernel.dk/linux-block: (66 commits) bcache: Use bd_link_disk_holder() bcache: Allocator cleanup/fixes cciss: bug fix to prevent cciss from loading in kdump crash kernel cciss: add cciss_allow_hpsa module parameter drivers/block/mg_disk.c: add CONFIG_PM_SLEEP to suspend/resume functions mtip32xx: Workaround for unaligned writes bcache: Make sure blocksize isn't smaller than device blocksize bcache: Fix merge_bvec_fn usage for when it modifies the bvm bcache: Correctly check against BIO_MAX_PAGES bcache: Hack around stuff that clones up to bi_max_vecs bcache: Set ra_pages based on backing device's ra_pages bcache: Take data offset from the bdev superblock. mtip32xx: mtip32xx: Disable TRIM support mtip32xx: fix a smatch warning bcache: Disable broken btree fuzz tester bcache: Fix a format string overflow bcache: Fix a minor memory leak on device teardown bcache: Documentation updates bcache: Use WARN_ONCE() instead of __WARN() bcache: Add missing #include <linux/prefetch.h> ...
Diffstat (limited to 'drivers/block/drbd/drbd_req.h')
-rw-r--r--drivers/block/drbd/drbd_req.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index c08d22964d06..978cb1addc98 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -88,6 +88,14 @@ enum drbd_req_event {
QUEUE_FOR_NET_READ,
QUEUE_FOR_SEND_OOS,
+ /* An empty flush is queued as P_BARRIER,
+ * which will cause it to complete "successfully",
+ * even if the local disk flush failed.
+ *
+ * Just like "real" requests, empty flushes (blkdev_issue_flush()) will
+ * only see an error if neither local nor remote data is reachable. */
+ QUEUE_AS_DRBD_BARRIER,
+
SEND_CANCELED,
SEND_FAILED,
HANDED_OVER_TO_NETWORK,