Kernel

[Patch 1/4] Allow arch-specific cleanup before breakpoint unregistration
On Tue, 25 May 2010 at 14:43:56 +0530, K.Prasad wrote: Certain architectures (such as PowerPC Book III S) have a need to cleanup data-structures before the breakpoint is unregistered. This patch introduces an arch-specific hook in release_bp_slot() along with a weak definition in the form of a stub funciton... 25 May 2010 08:01

net/dccp: Use memdup_user
| Signed-off-by: Julia Lawall <julia(a)diku.dk> Acked-by: Gerrit Renker <gerrit(a)erg.abdn.ac.uk> | | --- | net/dccp/proto.c | 11 +++-------- | 1 file changed, 3 insertions(+), 8 deletions(-) | | diff --git a/net/dccp/proto.c b/net/dccp/proto.c | index b03ecf6..f79bcef 100644 | --- a/net/dccp/proto.c | ++... 31 May 2010 04:22

acquire_console_mutex: WARNING: at 2.6.33.4-rt20/kernel/mutex-debug.c:65 mutex_remove_waiter+0xe8/0x11c()
On Tuesday 25 May 2010, Olaf Hering wrote: I get this warning when busybox /sbin/init opens the console. It does not happen when CONFIG_PREEMPT_RT is enabled. Any ideas how to fix it for CONFIG_PREEMPT_DESKTOP? [ 16.450000] ------------[ cut here ]------------ [ 16.450000] WARNING: at /work/rt/li... 31 May 2010 07:35

vfs: Add no_nrwrite_index_update writeback control flag
On Mon, May 24, 2010 at 03:28:06PM -0700, Greg KH wrote: 2.6.27-stable review patch. If anyone has any objections, please let us know. NACK. This has been shown to cause severe writeback regression for other filesystems and is beeing reverted in mianline. -- To unsubscribe from this list: send the line "unsu... 25 May 2010 22:21

writeback: pay attention to wbc->nr_to_write in write_cache_pages
On Tue, May 25, 2010 at 08:54:10PM +1000, Dave Chinner wrote: This commit adds a ->writepage tracepoint inside write_cache_pages() (how the above trace was generated) and does the revert manually leaving the subsequent The tracepoint really should be a separate commit, probably ordered before the ext4 revert.... 4 Jun 2010 04:51

[PATCH 4/6] writeback: pay attention to wbc->nr_to_write in write_cache_pages
From: Dave Chinner <dchinner(a)redhat.com> If a filesystem writes more than one page in ->writepage, write_cache_pages fails to notice this and continues to attempt writeback when wbc->nr_to_write has gone negative - this trace was captured from XFS: wbc_writeback_start: towrt=1024 wbc_writepage: towrt... 25 May 2010 08:01

[PATCH 0/6] writeback: tracing and fixes
This series contains the initial writeback tracing patches from Jens, as well as the extensions I added to provide visibility into writeback control structures as the are used by the writeback code. The visibility given is sufficient to understand what is happening in the writeback path - what path is writing dat... 25 May 2010 08:01

[PATCH 5/6] xfs: remove nr_to_write writeback windup.
From: Dave Chinner <dchinner(a)redhat.com> Now that the background flush code has been fixed, we shouldn't need to silently multiply the wbc->nr_to_write to get good writeback. Remove that code. Signed-off-by: Dave Chinner <dchinner(a)redhat.com> --- fs/xfs/linux-2.6/xfs_aops.c | 8 -------- 1 files changed,... 25 May 2010 08:01

[PATCH 6/6] writeback: limit write_cache_pages integrity scanning to current EOF
From: Dave Chinner <dchinner(a)redhat.com> sync can currently take a really long time if a concurrent writer is extending a file. The problem is that the dirty pages on the address space grow in the same direction as write_cache_pages scans, so if the writer keeps ahead of writeback, the writeback will not termina... 25 May 2010 08:01

kobject: free memory if netlink_kernel_create() fails
Dan Carpenter <error27(a)gmail.com> writes: There is a kfree(ue_sk) missing on the error path if netlink_kernel_create() fails. Signed-off-by: Dan Carpenter <error27(a)gmail.com> Reviewed-by: "Eric W. Biederman" <ebiederm(a)xmission.com> Oops. diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c ... 26 May 2010 11:21