[PATCH 0/6] buffered write IO controller in balance_dirty_pages()

Here is one possible solution to "buffered write IO controller", based on Linux v3.3 git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux.git buffered-write-io-controller Features: - support blkio.weight - support ...

Message posted on the March 28th, 2012 - 10:30 AM ET

[RFC] [PATCH v3 0/8] Provide cgroup isolation for buffered writes.

This patchset adds tracking to the page_cgroup structure for which cgroup has dirtied a page, and uses that information to provide isolation between cgroups performing writeback. I know that there is some discussion to remove request descriptor ...

Message posted on the March 30th, 2011 - 01:00 pm ET

[PATCH] printk: Add printk_flush() to force buffered text to console

Fengguang Wu had a config that caused the system to lockup. It reported: [ 6.086395] type 00 audit(1339501575.085:1): initialized [ 6.116356] Kprobe smoke test started [ 6.125915] Kprobe smoke test passed successfully [ 6.127478] ...

Message posted on the June 21st, 2012 - 08:00 pm ET

[PATCH 0/8][V2] blk-throttle: Throttle buffered WRITEs in balance_dirty_pages()

Hi, This is V2 of the patches. First version is posted here. https://lkml.org/lkml/2011/6/3/375 There are no changes from first version except that I have rebased it to for-3.1/core branch of Jens's block tree. I have been trying to find ways to ...

Message posted on the June 28th, 2011 - 12:00 pm ET

[RFC PATCH 0/8] blk-throttle: Throttle buffered WRITE in balance_dirty_pages()

Hi, I have been trying to find ways to solve two problems with block IO controller cgroups. - Current throttling logic in IO controller does not throttle buffered WRITES. Well it does throttle all the WRITEs at device and by that time buffered ...

Message posted on the June 03rd, 2011 - 05:10 pm ET

[RFC] [PATCH v2 0/8] Provide cgroup isolation for buffered writes.

This patchset adds tracking to the page_cgroup structure for which cgroup has dirtied a page, and uses that information to provide isolation between cgroups performing writeback. I know that there is some discussion to remove request descriptor ...

Message posted on the March 22nd, 2011 - 06:20 pm ET

[PATCH 1/6] fs: allow short direct-io reads to be completed via buffered IO

This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or ...

Message posted on the May 21st, 2010 - 01:10 pm ET

[PATCH 1/6] fs: allow short direct-io reads to be completed via buffered IO V2

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while ...

Message posted on the May 19th, 2010 - 04:30 pm ET

[PATCH 1/5] fs: allow short direct-io reads to be completed via buffered IO V2

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while ...

Message posted on the May 18th, 2010 - 05:10 pm ET

[PATCH 1/3] fs: allow short direct-io reads to be completed via buffered IO V2

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while ...

Message posted on the May 06th, 2010 - 03:00 pm ET

[PATCH] printk: Add printk_flush() to force buffered text to console

Fengguang Wu had a config that caused the system to lockup. It reported: [ 6.086395] type 00 audit(1339501575.085:1): initialized [ 6.116356] Kprobe smoke test started [ 6.125915] Kprobe smoke test passed successfully [ 6.127478] ...

Message posted on the June 14th, 2012 - 12:50 am ET

[PATCH 0/6] target: Reenable buffered FILEIO + add iscsi-target MXDSL logic

From: Nicholas Bellinger <nab@linux-iscsi.org> Hi folks, This following series is destined for v3.7-rc1 code, and re-adds support for buffered FILEIO + emulate_write_cache=1 emulation removed in v3.5, as well as fixing up a long standing ...

Message posted on the September 30th, 2012 - 02:10 am ET

[PATCH] fs: make sure to invalidate pages if we fall back on buffered reads

Since BTRFS can fallback on buffered reads after having done some direct reads, we need to make sure to invalidate any pages that we may have read by doing buffered IO. This shouldn't have shown up as a visible user problem, it's just for ...

Message posted on the June 08th, 2010 - 10:30 am ET

[PATCH 1/3] fs: allow short direct-io reads to be completed via buffered IO

This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or ...

Message posted on the May 04th, 2010 - 09:50 am ET

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