This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "XFS development tree".
The branch, for-linus has been updated
8e749e3 xfs: add AIL pushing tracepoints
0030807 xfs: revert to using a kthread for AIL pushing
17b3847 xfs: force the log if we encounter pinned buffers in .iop_pushbuf
bc6e588 xfs: do not update xa_last_pushed_lsn for locked items
from 2d2422aebc037095f77551119f795449d29befed (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
commit 8e749e30958c1e592b4001a4a186d2b133df0aa0
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue Oct 11 15:14:11 2011 +0000
xfs: add AIL pushing tracepoints
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit 0030807c66f058230bcb20d2573bcaf28852e804
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue Oct 11 11:14:10 2011 -0400
xfs: revert to using a kthread for AIL pushing
Currently we have a few issues with the way the workqueue code is used to
implement AIL pushing:
- it accidentally uses the same workqueue as the syncer action, and thus
can be prevented from running if there are enough sync actions active
in the system.
- it doesn't use the HIGHPRI flag to queue at the head of the queue of
work items
At this point I'm not confident enough in getting all the workqueue flags and
tweaks right to provide a perfectly reliable execution context for AIL
pushing, which is the most important piece in XFS to make forward progress
when the log fills.
Revert back to use a kthread per filesystem which fixes all the above issues
at the cost of having a task struct and stack around for each mounted
filesystem. In addition this also gives us much better ways to diagnose
any issues involving hung AIL pushing and removes a small amount of code.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reported-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Tested-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit 17b38471c3c07a49f0bbc2ecc2e92050c164e226
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue Oct 11 15:14:09 2011 +0000
xfs: force the log if we encounter pinned buffers in .iop_pushbuf
We need to check for pinned buffers even in .iop_pushbuf given that inode
items flush into the same buffers that may be pinned directly due operations
on the unlinked inode list operating directly on buffers. To do this add a
return value to .iop_pushbuf that tells the AIL push about this and use
the existing log force mechanisms to unpin it.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reported-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Tested-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit bc6e588a8971aa74c02e42db4d6e0248679f3738
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue Oct 11 15:14:08 2011 +0000
xfs: do not update xa_last_pushed_lsn for locked items
If an item was locked we should not update xa_last_pushed_lsn and thus skip
it when restarting the AIL scan as we need to be able to lock and write it
out as soon as possible. Otherwise heavy lock contention might starve AIL
pushing too easily, especially given the larger backoff once we moved
xa_last_pushed_lsn all the way to the target lsn.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reported-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Tested-by: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/xfs_buf_item.c | 3 +-
fs/xfs/xfs_dquot_item.c | 10 ++++--
fs/xfs/xfs_inode_item.c | 10 ++++--
fs/xfs/xfs_linux.h | 2 +
fs/xfs/xfs_super.c | 13 +------
fs/xfs/xfs_trace.h | 37 +++++++++++++++++++
fs/xfs/xfs_trans.h | 2 +-
fs/xfs/xfs_trans_ail.c | 91 +++++++++++++++++++++++++++++------------------
fs/xfs/xfs_trans_priv.h | 8 +----
9 files changed, 114 insertions(+), 62 deletions(-)
hooks/post-receive
--
XFS development tree
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
