[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, 13 Jul 2009 11:03:03 +0800 Li Zefan l...@cn.fujitsu.com wrote: Ben Blum wrote: Quick vmalloc vs kmalloc fix to the case where array size is too large Separates all pidlist allocation requests to a separate function that judges based on the requested size whether or not the array

[Devel] Re: [PATCH 0/2] CGroups: cgroup member list enhancement/fix

* men...@google.com men...@google.com [2009-07-10 16:58:23]: On Sat, Jul 4, 2009 at 11:38 PM, Balbir Singhbal...@linux.vnet.ibm.com wrote: Paul, I don't see an interface to migrate all procs or at-least I can't read it in the changelog. As discussed in the containers mini-summit in

[Devel] [PATCH] Save and restore the [compat_]robust_list member of the task struct.

These lists record which futexes the task holds. To keep the overhead of robust futexes low the list is kept in userspace. When the task exits the kernel carefully walks these lists to recover held futexes that other tasks may be attempting to acquire with FUTEX_WAIT. Because they point to

[Devel] [PATCH] cr_tests: futex: Fix mktree usage in run.sh

Restore the pids since robust and pi futexes rely on the pids to determine which task has the futex. Also use --copy-status to ensure that the exit code from the restarted processes propagate to run.sh Signed-off-by: Matt Helsley matth...@us.ibm.com --- I believe this is the most important fix

[Devel] [PATCH 01/36] Add the checkpoint operation for affs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/affs/dir.c |1 + fs/affs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/affs/dir.c b/fs/affs/dir.c index 8ca8f3a..6cc5e43 100644 --- a/fs/affs/dir.c +++

[Devel] [PATCH 09/36] Add the checkpoint operation for hfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/hfs/dir.c |1 + fs/hfs/inode.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c index 7c69b98..8d90a24 100644 --- a/fs/hfs/dir.c +++ b/fs/hfs/dir.c @@

[Devel] [PATCH 10/36] Add the checkpoint operation for hfsplus files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/hfsplus/dir.c |1 + fs/hfsplus/inode.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c index 5f40236..41fbf2d 100644 --- a/fs/hfsplus/dir.c

[Devel] [PATCH 23/36] Add the checkpoint operation for sysv filesystem files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Christoph Hellwig h...@infradead.org Cc: linux-fsde...@vger.kernel.org --- fs/sysv/dir.c |1 + fs/sysv/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c index 4e50286..53acd29

[Devel] [PATCH 27/36] Add checkpoint operation for efs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/efs/dir.c |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/efs/dir.c b/fs/efs/dir.c index 7ee6f7e..da344b8 100644 --- a/fs/efs/dir.c +++ b/fs/efs/dir.c @@ -13,6 +13,7 @@ const struct file_operations

[Devel] [PATCH 05/36] Add the checkpoint operation for cramfs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/cramfs/inode.c |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index dd3634e..0927503 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@

[Devel] [PATCH 12/36] Add the checkpoint operation for hppfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/hppfs/hppfs.c |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index a5089a6..f132fa2 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@

[Devel] [PATCH 19/36] Add the checkpoint operation for qnx4 files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/qnx4/dir.c |1 + fs/qnx4/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c index 003c68f..ca99e01 100644 --- a/fs/qnx4/dir.c +++

[Devel] [PATCH 03/36] Add the checkpoint operation for bfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/bfs/dir.c |1 + fs/bfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c index 54bd07d..6143810 100644 --- a/fs/bfs/dir.c +++ b/fs/bfs/dir.c @@

[Devel] [PATCH 11/36] Add the checkpoint operation for hpfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/hpfs/dir.c |1 + fs/hpfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c index 6916c41..e88bde6 100644 --- a/fs/hpfs/dir.c +++

[Devel] [PATCH 08/36] Add the checkpoint operation for freevxfs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/freevxfs/vxfs_lookup.c |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c index aee049c..3a09132 100644 ---

[Devel] [PATCH 17/36] Add the checkpoint operation for ntfs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Anton Altaparmakov ai...@cantab.net Cc: linux-ntfs-...@lists.sourceforge.net Cc: linux-fsde...@vger.kernel.org --- fs/ntfs/dir.c |1 + fs/ntfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/ntfs/dir.c

[Devel] [PATCH 34/36] Add the checkpoint operation to exofs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Boaz Harrosh bharr...@panasas.com Cc: Avishay Traeger avis...@gmail.com Cc: linux-fsdevel linux-fsde...@vger.kernel.org --- fs/exofs/dir.c |1 + fs/exofs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git

[Devel] [PATCH 31/36] Add checkpoint operations for ufs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/ufs/dir.c |1 + fs/ufs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c index 6f671f1..9379010 100644 --- a/fs/ufs/dir.c +++ b/fs/ufs/dir.c @@ -668,4 +668,5 @@ const struct

[Devel] [PATCH 06/36] Add the checkpoint operation for ecryptfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/ecryptfs/file.c|2 ++ fs/ecryptfs/miscdev.c |1 + 2 files changed, 3 insertions(+), 0 deletions(-) diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 9e94405..e6d2523 100644 ---

[Devel] [PATCH 28/36] Add the checkpoint operation for generic, read-only files. At present, some/all files of the following filesystems use this generic definition:

freevxfs, romfs, efs, cramfs, isofs, squashfs, befs This generic filesystem operation definition includes a seek operation and is thus restartable given the generic checkpoint operation. Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/read_write.c |1 + 1 files changed, 1

[Devel] [PATCH 0/36] checkpoint/restart: opened files of generic, non-extX filesystems

These patches extend the use of the generic file checkpoint operation to non-extX filesystems which have lseek operations that ensure we can save and restore the files for later use. Note that this does not include things like FUSE, network filesystems, or pseudo-filesystem kernel interfaces.

[Devel] [PATCH 15/36] Add the checkpoint operation for jfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Dave Kleikamp sha...@austin.ibm.com Cc: jfs-discuss...@lists.sourceforge.net Cc: linux-fsde...@vger.kernel.org --- fs/jfs/file.c |1 + fs/jfs/namei.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/jfs/file.c

[Devel] [PATCH 29/36] Add checkpoint operation for minix filesystem files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/minix/dir.c |1 + fs/minix/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/minix/dir.c b/fs/minix/dir.c index d407e7a..9cf04af 100644 --- a/fs/minix/dir.c +++ b/fs/minix/dir.c @@ -23,6 +23,7 @@ const

[Devel] [PATCH 21/36] Add the checkpoint operation for romfs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/romfs/mmap-nommu.c |1 + fs/romfs/super.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index f0511e8..03c24d9 100644 ---

[Devel] [PATCH 26/36] Add the checkpoint operation for xfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: xfs-mast...@oss.sgi.com Cc: x...@oss.sgi.com Cc: linux-fsde...@vger.kernel.org --- fs/xfs/linux-2.6/xfs_file.c |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c

[Devel] [PATCH 20/36] Add the checkpoint operation for reiserfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: reiserfs-de...@vger.kernel.org Cc: linux-fsde...@vger.kernel.org --- fs/reiserfs/dir.c |1 + fs/reiserfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c index

[Devel] [PATCH 16/36] Add the checkpoint operation for regular nfs files and directories. Skip the various /proc files for now.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Trond Myklebust trond.mykleb...@netapp.com Cc: linux-...@vger.kernel.org Cc: linux-fsde...@vger.kernel.org --- fs/nfs/dir.c |1 + fs/nfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/nfs/dir.c

[Devel] [PATCH 35/36] Add the checkpoint operation to nilfs2 files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: KONISHI Ryusuke konishi.ryus...@lab.ntt.co.jp Cc: us...@nilfs.org Cc: linux-fsde...@vger.kernel.org --- fs/nilfs2/dir.c |2 +- fs/nilfs2/file.c |1 + 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/fs/nilfs2/dir.c

[Devel] [PATCH 07/36] Add the checkpoint operation for fat files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/fat/dir.c |1 + fs/fat/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/fat/dir.c b/fs/fat/dir.c index 38ff75a..a144f64 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@

[Devel] [PATCH 13/36] Add the checkpoint operation for iso directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/isofs/dir.c |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c index 8ba5441..848059d 100644 --- a/fs/isofs/dir.c +++ b/fs/isofs/dir.c @@ -273,6 +273,7 @@

[Devel] [PATCH 33/36] Add the checkpoint operation for adfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/adfs/dir.c |1 + fs/adfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c index 23aa52f..7106f32 100644 --- a/fs/adfs/dir.c +++

[Devel] [PATCH 18/36] Add the checkpoint operation for openromfs directories. Explicitly skip the properties for now.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/openpromfs/inode.c |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c index ffcd04f..d1f0677 100644 --- a/fs/openpromfs/inode.c +++

[Devel] [PATCH 22/36] Add the checkpoint operation for squashfs directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Phillip Lougher phil...@lougher.demon.co.uk Cc: linux-fsde...@vger.kernel.org --- fs/squashfs/dir.c |3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/fs/squashfs/dir.c b/fs/squashfs/dir.c index 566b0ea..b0c5336 100644

[Devel] [PATCH 25/36] Add the checkpoint operation for udf filesystem files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Jan Kara j...@suse.cz Cc: linux-fsde...@vger.kernel.org --- fs/udf/dir.c |1 + fs/udf/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/udf/dir.c b/fs/udf/dir.c index 61d9a76..6586dbe 100644 ---

[Devel] [PATCH 24/36] Add the checkpoint operation for ubifs files and directories.

I think the debug files will also work with the generic file checkpoint helper but it needs a bit more investigation to be certain. Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: Artem Bityutskiy dedek...@infradead.org Cc: Adrian Hunter ext-adrian.hun...@nokia.com Cc:

[Devel] [PATCH 32/36] Add checkpoint operations for ramfs files. NOTE: since simple_dir_operations are shared between multiple filesystems including ramfs, it's not currently possible to checkpoint op

Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/ramfs/file-mmu.c |1 + fs/ramfs/file-nommu.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c index 78f613c..4430239 100644 --- a/fs/ramfs/file-mmu.c +++

[Devel] [PATCH 30/36] Add checkpoint operations for omfs files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com --- fs/omfs/dir.c |1 + fs/omfs/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c index c7275cf..5ed9cb3 100644 --- a/fs/omfs/dir.c +++ b/fs/omfs/dir.c @@ -502,4 +502,5 @@ struct

[Devel] [PATCH 14/36] Add the checkpoint operation for jffs2 files and directories.

Signed-off-by: Matt Helsley matth...@us.ibm.com Cc: linux-fsde...@vger.kernel.org --- fs/jffs2/dir.c |1 + fs/jffs2/file.c |1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c index 6f60cc9..c2b6487 100644 --- a/fs/jffs2/dir.c +++

[Devel] [cr][git]linux-cr branch, ckpt-v17-rc1, updated. v2.6.27-rc5-45619-g4cbbabe

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 linux-cr. The branch, ckpt-v17-rc1 has been updated via 4cbbabe2c7c1ba884c685654cf52f9f1a79320a0 (commit) from

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, Jul 13, 2009 at 2:03 AM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: why not using vmalloc() always ? Thanks, -Kame The idea behind this patch is that in most cases, we want to use kmalloc for performance, but sometimes the array will be too big. See the previous

[Devel] Re: [PATCH] io-controller: implement per group request allocation limitation

On Fri, Jul 10, 2009 at 09:56:21AM +0800, Gui Jianfeng wrote: Hi Vivek, This patch exports a cgroup based per group request limits interface. and removes the global one. Now we can use this interface to perform different request allocation limitation for different groups. Thanks Gui. Few

[Devel] Re: [PATCH 0/2] CGroups: cgroup member list enhancement/fix

On Mon, Jul 13, 2009 at 5:11 AM, Balbir Singhbal...@linux.vnet.ibm.com wrote: How about lazy migration? Mark a group as to move when the kernel sees it next for scheduling. Waiting for the next scheduling point might be too long, since a thread can block for arbitrary amounts of time and

[Devel] Re: BUG in tty_open when using containers and ptrace

Quoting Grzegorz Nosek (r...@localdomain.pl): You are only seeing this with containers ? Well, that's how I could reproduce it, didn't try any other way. Multiple devpts instances don't matter here, but quite possibly namespaces do. I've tried but failed to reproduce. Do you have a script

[Devel] Re: [PATCH 2/2] c/r: Add AF_INET support (v3)

JD Why? It seems that this would cause checkpoints to fail JD unexpectedly, Well, there are other places where the checkpoint will fail with EBUSY because something is in a transitional state. JD and is probably unnecessary in a migration scenario, because the JD peer will retransmit the

[Devel] Re: BUG in tty_open when using containers and ptrace

On Mon, Jul 13, 2009 at 02:02:11PM -0500, Serge E. Hallyn wrote: I've tried but failed to reproduce. Do you have a script or a more precise recipe you can share? I do have a script but all it does is starting and shutting down a container in a loop. I can strip down and publish the virtualbox

[Devel] Re: BUG in tty_open when using containers and ptrace

Quoting Grzegorz Nosek (r...@localdomain.pl): On Mon, Jul 13, 2009 at 02:02:11PM -0500, Serge E. Hallyn wrote: I've tried but failed to reproduce. Do you have a script or a more precise recipe you can share? I do have a script but all it does is starting and shutting down a container in

[Devel] Re: [PATCH] io-controller: implement per group request allocation limitation

Vivek Goyal wrote, on 07/13/2009 12:03 PM: On Fri, Jul 10, 2009 at 09:56:21AM +0800, Gui Jianfeng wrote: Hi Vivek, This patch exports a cgroup based per group request limits interface. and removes the global one. Now we can use this interface to perform different request allocation

[Devel] Re: [PATCH 1/1] Memory usage limit notification addition to memcg

KAMEZAWA Hiroyuki wrote: On Wed, 08 Jul 2009 18:43:48 -0700 Vladislav D. Buzov vbu...@embeddedalley.com wrote: KAMEZAWA Hiroyuki wrote: 2 points. - Do we have to check this always we account ? What are the options? Every N pages? How to select N? I think you

[Devel] Re: [PATCH 1/1] Memory usage limit notification addition to memcg

On Tue, Jul 7, 2009 at 5:56 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: I know people likes to wait for file descriptor to get notification in these days. Can't we have event file descriptor in cgroup layer and make it reusable for other purposes ? I agree - rather than

[Devel] Re: BUG in tty_open when using containers and ptrace

On Mon, Jul 13, 2009 at 03:26:10PM -0500, Serge E. Hallyn wrote: The container init is /bin/sh, and you while [ 1 ]; do virsh --connect lxc:/// start vm1 virsh --connect lxc:/// destroy vm1 done ? (I thought there was something about stracing the container init too, so i was

[Devel] [cr][git]linux-cr branch, ckpt-v17-rc1, updated. v2.6.27-rc5-45621-ge428694

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 linux-cr. The branch, ckpt-v17-rc1 has been updated via e428694a8f6857a10afbd99660bc695c353aa74b (commit) via

[Devel] Re: [PATCH] user-cr: Support kernel builds done with O=

Got it. I added another change to allow taking the headers from the install directory (variable: KERNELHDR, defaulf it $(KERNELSRC)/usr/include). Hopefully I didn't break anything... Oren. Matt Helsley wrote: Support kernel builds such as: make O=../kbuild bzImage The Makefile

[Devel] Re: [PATCH 1/9] [RFC] Support named cgroups hierarchies

On Thu, Jul 2, 2009 at 7:32 PM, Li Zefanl...@cn.fujitsu.com wrote: cgroup_set_super() is called with spinlock held, so we can't do kmalloc(GFP_KERNEL). Good point. I'll have to go back to pre-allocating the root before calling sget() Paul ___

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, 13 Jul 2009 11:27:43 -0400 Benjamin Blum bb...@google.com wrote: On Mon, Jul 13, 2009 at 2:03 AM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: why not using vmalloc() always ? Thanks, -Kame The idea behind this patch is that in most cases, we want to use

[Devel] [PATCH 2/2] Memory usage limit notification addition to memcg (v3)

This patch updates the Memory Controller Control Group to add a configurable memory usage limit notification. The feature was presented at the April 2009 Embedded Linux Conference. Signed-off-by: Vladislav Buzov vbu...@embeddedalley.com Signed-off-by: Dan Malek d...@embeddedalley.com ---

[Devel] [PATCH 0/2] Memory usage limit notification feature (v3)

The following sequence of patches introduce memory usage limit notification capability to the Memory Controller cgroup. This is v3 of the implementation. The major difference between previous version is it is based on the the Resource Counter extension to notify the Resource Controller when the

[Devel] [PATCH 1/2] Resource usage threshold notification addition to res_counter (v3)

This patch updates the Resource Counter to add a configurable resource usage threshold notification mechanism. Signed-off-by: Vladislav Buzov vbu...@embeddedalley.com Signed-off-by: Dan Malek d...@embeddedalley.com --- Documentation/cgroups/resource_counter.txt | 21 -

[Devel] Re: [PATCH 0/2] Memory usage limit notification feature (v3)

On Mon, Jul 13, 2009 at 5:16 PM, Vladislav Buzovvbu...@embeddedalley.com wrote: The following sequence of patches introduce memory usage limit notification capability to the Memory Controller cgroup. This is v3 of the implementation. The major difference between previous version is it is

[Devel] Re: [PATCH 0/2] Memory usage limit notification feature (v3)

On Mon, Jul 13, 2009 at 5:16 PM, Vladislav Buzovvbu...@embeddedalley.com wrote: The following sequence of patches introduce memory usage limit notification capability to the Memory Controller cgroup. This is v3 of the implementation. The major difference between previous version is

[Devel] Re: [PATCH 1/2] Resource usage threshold notification addition to res_counter (v3)

On Mon, 13 Jul 2009 17:16:20 -0700 Vladislav Buzov vbu...@embeddedalley.com wrote: This patch updates the Resource Counter to add a configurable resource usage threshold notification mechanism. Signed-off-by: Vladislav Buzov vbu...@embeddedalley.com Signed-off-by: Dan Malek

[Devel] Re: [PATCH 1/2] Resource usage threshold notification addition to res_counter (v3)

As I mentioned in another thread, I think that associating the threshold with the res_counter rather than with each individual waiter is a mistake, since it creates global state and makes it hard to have multiple waiters on the same cgroup. Paul On Mon, Jul 13, 2009 at 5:16 PM, Vladislav

[Devel] Re: [PATCH 1/2] Resource usage threshold notification addition to res_counter (v3)

On Mon, 13 Jul 2009 17:36:40 -0700 Paul Menage men...@google.com wrote: As I mentioned in another thread, I think that associating the threshold with the res_counter rather than with each individual waiter is a mistake, since it creates global state and makes it hard to have multiple waiters

[Devel] Re: [PATCH 8/9] [RFC] Example multi-bindable subsystem: a per-cgroup notes field

On Fri, Jul 3, 2009 at 1:58 AM, Li Zefanl...@cn.fujitsu.com wrote: If it's not per cgroup, it can be a global value. No it can't, since the notes subsystem can be mounted on multiple hierarchies simultaneously. But why not make it per cgroup? Setting notes.size to a large value allows

[Devel] Re: [PATCH 1/1] Memory usage limit notification addition to memcg

Paul Menage wrote: On Tue, Jul 7, 2009 at 5:56 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: I know people likes to wait for file descriptor to get notification in these days. Can't we have event file descriptor in cgroup layer and make it reusable for other purposes ?

[Devel] Re: [PATCH 1/1] Memory usage limit notification addition to memcg

On Mon, 13 Jul 2009 18:00:53 -0700 Vladislav D. Buzov vbu...@embeddedalley.com wrote: Paul Menage wrote: On Tue, Jul 7, 2009 at 5:56 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: I know people likes to wait for file descriptor to get notification in these days. Can't

[Devel] Re: [PATCH 1/1] Memory usage limit notification addition to memcg

On Tue, Jul 7, 2009 at 5:56 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: I know people likes to wait for file descriptor to get notification in these days. Can't we have event file descriptor in cgroup layer and make it reusable for other purposes ? I agree -

[Devel] Re: [PATCH 1/2] Resource usage threshold notification addition to res_counter (v3)

On Mon, 13 Jul 2009 18:29:01 -0700 Vladislav D. Buzov vbu...@embeddedalley.com wrote: KAMEZAWA Hiroyuki wrote: On Mon, 13 Jul 2009 17:16:20 -0700 Vladislav Buzov vbu...@embeddedalley.com wrote: This patch updates the Resource Counter to add a configurable resource usage

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, Jul 13, 2009 at 4:49 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: IIUC, this place, .../procs interface is not so important for performance as to being allowed this ugly conding. It's not just the calling thread that suffers from the overhead - we've seen performance hits

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, 13 Jul 2009 20:50:33 -0700 Paul Menage men...@google.com wrote: On Mon, Jul 13, 2009 at 4:49 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: IIUC, this place, .../procs interface is not so important for performance as to being allowed this ugly conding. It's not just

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, Jul 13, 2009 at 8:53 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: Hmm, ok...then, if too much pids, you hit vmalloc()/vfree() problem again. So, it's not good idea to use vmalloc/vfree here after all. Agreed, using vmalloc()/vfree() isn't a perfect solution, but at least

[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

On Mon, 13 Jul 2009 21:04:32 -0700 Paul Menage men...@google.com wrote: On Mon, Jul 13, 2009 at 8:53 PM, KAMEZAWA Hiroyukikamezawa.hir...@jp.fujitsu.com wrote: Hmm, ok...then, if too much pids, you hit vmalloc()/vfree() problem again. So, it's not good idea to use vmalloc/vfree here after

[Devel] Re: [PATCH 0/2] CGroups: cgroup member list enhancement/fix

* men...@google.com men...@google.com [2009-07-13 09:26:26]: On Mon, Jul 13, 2009 at 5:11 AM, Balbir Singhbal...@linux.vnet.ibm.com wrote: How about lazy migration? Mark a group as to move when the kernel sees it next for scheduling. Waiting for the next scheduling point might be too