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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 02:00:17 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 02:00:17 +0300
commite4bc13adfd016fc1036838170288b5680d1a98b0 (patch)
tree8d2cb749397749439732f3a827cb7f2336408337 /drivers/block
parentad90fb97515b732bc27a0109baa10af636c3c8cd (diff)
parent3e1534cf4a2a8278e811e7c84a79da1a02347b8b (diff)
downloadlinux-e4bc13adfd016fc1036838170288b5680d1a98b0.tar.xz
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/block')
-rw-r--r--drivers/block/drbd/drbd_int.h1
-rw-r--r--drivers/block/drbd/drbd_main.c10
-rw-r--r--drivers/block/pktcdvd.c1
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index b905e9888b88..efd19c2da9c2 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -38,6 +38,7 @@
#include <linux/mutex.h>
#include <linux/major.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/genhd.h>
#include <linux/idr.h>
#include <net/tcp.h>
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 81fde9ef7f8e..a1518539b858 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2359,7 +2359,7 @@ static void drbd_cleanup(void)
* @congested_data: User data
* @bdi_bits: Bits the BDI flusher thread is currently interested in
*
- * Returns 1<<BDI_async_congested and/or 1<<BDI_sync_congested if we are congested.
+ * Returns 1<<WB_async_congested and/or 1<<WB_sync_congested if we are congested.
*/
static int drbd_congested(void *congested_data, int bdi_bits)
{
@@ -2376,14 +2376,14 @@ static int drbd_congested(void *congested_data, int bdi_bits)
}
if (test_bit(CALLBACK_PENDING, &first_peer_device(device)->connection->flags)) {
- r |= (1 << BDI_async_congested);
+ r |= (1 << WB_async_congested);
/* Without good local data, we would need to read from remote,
* and that would need the worker thread as well, which is
* currently blocked waiting for that usermode helper to
* finish.
*/
if (!get_ldev_if_state(device, D_UP_TO_DATE))
- r |= (1 << BDI_sync_congested);
+ r |= (1 << WB_sync_congested);
else
put_ldev(device);
r &= bdi_bits;
@@ -2399,9 +2399,9 @@ static int drbd_congested(void *congested_data, int bdi_bits)
reason = 'b';
}
- if (bdi_bits & (1 << BDI_async_congested) &&
+ if (bdi_bits & (1 << WB_async_congested) &&
test_bit(NET_CONGESTED, &first_peer_device(device)->connection->flags)) {
- r |= (1 << BDI_async_congested);
+ r |= (1 << WB_async_congested);
reason = reason == 'b' ? 'a' : 'n';
}
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 09e628dafd9d..4c20c228184c 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -61,6 +61,7 @@
#include <linux/freezer.h>
#include <linux/mutex.h>
#include <linux/slab.h>
+#include <linux/backing-dev.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/scsi.h>