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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-25 16:00:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-25 16:00:17 -0700
commite4bc13adfd016fc1036838170288b5680d1a98b0 (patch)
tree8d2cb749397749439732f3a827cb7f2336408337 /drivers/md
parentad90fb97515b732bc27a0109baa10af636c3c8cd (diff)
parent3e1534cf4a2a8278e811e7c84a79da1a02347b8b (diff)
downloadlinux-e4bc13adfd016fc1036838170288b5680d1a98b0.tar.bz2
Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block
Pull cgroup writeback support from Jens Axboe: "This is the big pull request for adding cgroup writeback support. This code has been in development for a long time, and it has been simmering in for-next for a good chunk of this cycle too. This is one of those problems that has been talked about for at least half a decade, finally there's a solution and code to go with it. Also see last weeks writeup on LWN: http://lwn.net/Articles/648292/" * 'for-4.2/writeback' of git://git.kernel.dk/linux-block: (85 commits) writeback, blkio: add documentation for cgroup writeback support vfs, writeback: replace FS_CGROUP_WRITEBACK with SB_I_CGROUPWB writeback: do foreign inode detection iff cgroup writeback is enabled v9fs: fix error handling in v9fs_session_init() bdi: fix wrong error return value in cgwb_create() buffer: remove unusued 'ret' variable writeback: disassociate inodes from dying bdi_writebacks writeback: implement foreign cgroup inode bdi_writeback switching writeback: add lockdep annotation to inode_to_wb() writeback: use unlocked_inode_to_wb transaction in inode_congested() writeback: implement unlocked_inode_to_wb transaction and use it for stat updates writeback: implement [locked_]inode_to_wb_and_lock_list() writeback: implement foreign cgroup inode detection writeback: make writeback_control track the inode being written back writeback: relocate wb[_try]_get(), wb_put(), inode_{attach|detach}_wb() mm: vmscan: disable memcg direct reclaim stalling if cgroup writeback support is in use writeback: implement memcg writeback domain based throttling writeback: reset wb_domain->dirty_limit[_tstmp] when memcg domain size changes writeback: implement memcg wb_domain writeback: update wb_over_bg_thresh() to use wb_domain aware operations ...
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/bcache/request.c1
-rw-r--r--drivers/md/dm.c2
-rw-r--r--drivers/md/dm.h1
-rw-r--r--drivers/md/md.h1
-rw-r--r--drivers/md/raid1.c4
-rw-r--r--drivers/md/raid10.c2
6 files changed, 7 insertions, 4 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 1616f668a4cb..4afb2d26b148 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/hash.h>
#include <linux/random.h>
+#include <linux/backing-dev.h>
#include <trace/events/bcache.h>
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4d6f089a0e9e..d72829922eb6 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2080,7 +2080,7 @@ static int dm_any_congested(void *congested_data, int bdi_bits)
* the query about congestion status of request_queue
*/
if (dm_request_based(md))
- r = md->queue->backing_dev_info.state &
+ r = md->queue->backing_dev_info.wb.state &
bdi_bits;
else
r = dm_table_any_congested(map, bdi_bits);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index e6e66d087b26..7fff744f0865 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -14,6 +14,7 @@
#include <linux/device-mapper.h>
#include <linux/list.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/hdreg.h>
#include <linux/completion.h>
#include <linux/kobject.h>
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 4046a6c6f223..7da6e9c3cb53 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -16,6 +16,7 @@
#define _MD_MD_H
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/kobject.h>
#include <linux/list.h>
#include <linux/mm.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 9157a29c8dbf..f80f1af61ce7 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -745,7 +745,7 @@ static int raid1_congested(struct mddev *mddev, int bits)
struct r1conf *conf = mddev->private;
int i, ret = 0;
- if ((bits & (1 << BDI_async_congested)) &&
+ if ((bits & (1 << WB_async_congested)) &&
conf->pending_count >= max_queued_requests)
return 1;
@@ -760,7 +760,7 @@ static int raid1_congested(struct mddev *mddev, int bits)
/* Note the '|| 1' - when read_balance prefers
* non-congested targets, it can be removed
*/
- if ((bits & (1<<BDI_async_congested)) || 1)
+ if ((bits & (1 << WB_async_congested)) || 1)
ret |= bdi_congested(&q->backing_dev_info, bits);
else
ret &= bdi_congested(&q->backing_dev_info, bits);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index f55c3f35b746..188d8e9a6bdc 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -914,7 +914,7 @@ static int raid10_congested(struct mddev *mddev, int bits)
struct r10conf *conf = mddev->private;
int i, ret = 0;
- if ((bits & (1 << BDI_async_congested)) &&
+ if ((bits & (1 << WB_async_congested)) &&
conf->pending_count >= max_queued_requests)
return 1;