Wu Fengguang 1b430beee5 writeback: remove nonblocking/encountered_congestion references ... This removes more dead code that was somehow missed by commit 0d99519efe (writeback: remove unused nonblocking and congestion checks). There are no behavior change except for the removal of two entries from one of the ext4 tracing interface. The nonblocking checks in ->writepages are no longer used because the flusher now prefer to block on get_request_wait() than to skip inodes on IO congestion. The latter will lead to more seeky IO. The nonblocking checks in ->writepage are no longer used because it's redundant with the WB_SYNC_NONE check. We no long set ->nonblocking in VM page out and page migration, because a) it's effectively redundant with WB_SYNC_NONE in current code b) it's old semantic of "Don't get stuck on request queues" is mis-behavior: that would skip some dirty inodes on congestion and page out others, which is unfair in terms of LRU age. Inspired by Christoph Hellwig. Thanks! Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: David Howells <dhowells@redhat.com> Cc: Sage Weil <sage@newdream.net> Cc: Steve French <sfrench@samba.org> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-10-26 16:52:05 -07:00
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acpi
asm-generic	[S390] add support for nonquiescing sske	2010-10-25 16:10:15 +02:00
crypto	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-10-24 13:41:39 -07:00
drm
keys
linux	oom: add per-mm oom disable count	2010-10-26 16:52:05 -07:00
math-emu
media	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-10-25 07:59:01 -07:00
mtd
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-10-23 11:47:02 -07:00
pcmcia	pcmcia: IOCARD is also required for using IRQs	2010-10-22 08:46:36 +02:00
rdma
rxrpc
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-10-22 20:30:48 -07:00
sound	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	2010-10-25 08:32:05 -07:00
trace	writeback: remove nonblocking/encountered_congestion references	2010-10-26 16:52:05 -07:00
video	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	2010-10-25 08:32:05 -07:00
xen
Kbuild