Steven asked for per group periods in order to get closer to RMA or EDF
scheduling.
Use the fancy new hrtimers to provide a per group period
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h|2
kernel/sched.c | 225
We need to teach no_hz about the rt throttling because its tick driven.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h|2 ++
kernel/sched.c | 23 ++-
kernel/sched_rt.c| 30 --
kernel/time
Could you please fold this into the 6/7 patch.
It reverts a wandering chunk (the 32768 thing), but more importantly
it fixes !FAIR_GROUP_SCHED compilation.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched.c | 10 +++---
1 file changed, 7 insertions(+), 3 deletions
On Sat, 2008-01-05 at 18:12 +1100, Herbert Xu wrote:
On Fri, Jan 04, 2008 at 09:30:49AM +0100, Ingo Molnar wrote:
[ 1310.670986] =
[ 1310.671690] [ INFO: possible recursive locking detected ]
[ 1310.672097] 2.6.24-rc6 #1
[
On Sat, 2008-01-05 at 17:53 +0100, Peter Zijlstra wrote:
On Sat, 2008-01-05 at 18:12 +1100, Herbert Xu wrote:
On Fri, Jan 04, 2008 at 09:30:49AM +0100, Ingo Molnar wrote:
[ 1310.670986] =
[ 1310.671690] [ INFO: possible recursive locking
On Sun, 2008-01-06 at 14:13 +0100, Jörn Engel wrote:
Ingo, Peter, does either of you actually care about this problem? In
the last round when I debugged this problem there was a notable lack of
reaction from either of you.
Yeah I do, I just know very little about the module stuff and
Change the rt_ratio interface to rt_runtime_us, to match rt_period_us.
This avoids picking a granularity for the ratio.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h |8 +++
kernel/sched.c| 116 ++
kernel
don't start the load_balance_monitor when there is only a single cpu.
rename the kthread because its currently longer than TASK_COMM_LEN
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
Index: linux-2.6/kernel
Use a simple Ealiest Deadline First implementation to schedule the realtime
groups.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h |1
kernel/sched.c| 13 +
kernel/sched_rt.c | 115 +++---
3 files
Steven mentioned the fun case where a lock holding task will be throttled.
Simple fix: allow groups that have boosted tasks to run anyway.
This is ofcourse not quite correct. Needs more tricks.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched.c|3 +++
kernel/sched_rt.c
We need to teach no_hz about the rt throttling because its tick driven.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h|2 ++
kernel/sched.c | 23 ++-
kernel/sched_rt.c| 30 --
kernel/time
this time compile tested on all 16 combinations of:
CONFIG_SMP
CONFIG_FAIR_GROUP_SCHED
CONFIG_HIGH_RES_TIMERS
CONFIG_NO_HZ
ran some but not all combinations
--
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More
In order to more easily allow for the scheduler to use timers, clean up
the locking a bit.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/hrtimer.c | 109 +++
kernel/time/tick-sched.c |8 ---
2 files changed, 102 insertions
hrtimer_wakeup creates a
base-lock
rq-lock
lock dependancy. Avoid this by switching to HRTIMER_CB_IRQSAFE_NO_SOFTIRQ
which doesn't hold base-lock.
This fully untangles hrtimer locks from the scheduler locks, and allows
hrtimer usage in the scheduler proper.
Signed-off-by: Peter Zijlstra
Disable the period updates for inactive groups.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched.c| 158 --
kernel/sched_rt.c | 54 ++
2 files changed, 53 insertions(+), 159 deletions(-)
Index: linux-2.6
Currently all highres=off timers are run from softirq context, but
HRTIMER_CB_IRQSAFE_NO_SOFTIRQ timers expect to run from irq context.
Fix this up by splitting it similar to the highres=on case.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/hrtimer.h |5 -
kernel
Only reschedule if the new group has a higher prio task.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched_rt.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
Index: linux-2.6/kernel/sched_rt.c
Steven asked for per group periods in order to get closer to RMA or EDF
scheduling.
Use the fancy new hrtimers to provide a per group period
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h|2
kernel/sched.c | 229
On Mon, 2007-10-08 at 10:39 -0700, Greg KH wrote:
On Mon, Oct 08, 2007 at 07:36:10PM +0200, Peter Zijlstra wrote:
On Mon, 2007-10-08 at 10:24 -0700, Greg KH wrote:
On Fri, Oct 05, 2007 at 11:31:26AM +0200, Peter Zijlstra wrote:
Stable team,
please consider this patch
On Fri, 2007-10-26 at 17:43 +0800, Zhang, Yanmin wrote:
I tested 2.6.24-rc1 on my x86_64 machine which has 2 quad-core processors.
Comparing with 2.6.23, aim7 has about -30% regression. I did a bisect and
found
patch
On Wed, 2007-10-03 at 15:35 +0200, Kay Sievers wrote:
On Wed, 2007-10-03 at 12:37 +0200, Peter Zijlstra wrote:
On Wed, 2007-10-03 at 12:15 +0200, Kay Sievers wrote:
On Tue, 2007-10-02 at 22:05 +1000, Nick Piggin wrote:
On Tuesday 02 October 2007 21:40, Peter Zijlstra wrote:
On Tue
On Fri, 2007-10-26 at 17:33 +0200, Kay Sievers wrote:
On Fri, 2007-10-26 at 17:22 +0200, Peter Zijlstra wrote:
On Fri, 2007-10-26 at 17:10 +0200, Kay Sievers wrote:
On Fri, 2007-10-26 at 16:48 +0200, Peter Zijlstra wrote:
I appreciate the sysfs people their opinion that /sys/bdi
On Fri, 2007-10-26 at 17:22 +0200, Ingo Molnar wrote:
* Martin Knoblauch [EMAIL PROTECTED] wrote:
Hi ,
just to give some feedback on 2.6.24-rc1. For some time I am tracking
IO/writeback problems that hurt system responsiveness big-time. I
tested Peters stuff together with
On Fri, 2007-10-26 at 17:10 +0200, Kay Sievers wrote:
On Fri, 2007-10-26 at 16:48 +0200, Peter Zijlstra wrote:
I appreciate the sysfs people their opinion that /sys/bdi/ might not be the
best from their POV, however I'm not seeing where to hook the BDI object
from
so that it all makes
This crashes and burns on bootup, but I'm too tired to figure out what I
did wrong... will give it another try tomorrow..
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
block/genhd.c |2
fs/fuse/inode.c |2
fs/nfs/client.c |2
include
On Fri, 2007-10-26 at 22:04 +0200, Peter Zijlstra wrote:
This crashes and burns on bootup, but I'm too tired to figure out what I
did wrong... will give it another try tomorrow..
Ok, can't sleep.. took a look. I have several problems here.
The thing that makes it go *boom* is the __ATTR_NULL
On Fri, 2007-10-26 at 19:40 -0700, Greg KH wrote:
On Sat, Oct 27, 2007 at 03:18:08AM +0200, Peter Zijlstra wrote:
On Fri, 2007-10-26 at 22:04 +0200, Peter Zijlstra wrote:
This crashes and burns on bootup, but I'm too tired to figure out what I
did wrong... will give it another try
Hi,
I had me a little look at bdi usage in networked filesystems.
NFS, CIFS, (smbfs), AFS, CODA and NCP
And of those, NFS is the only one that I could find that creates
backing_dev_info structures. The rest seems to fall back to
default_backing_dev_info.
With my recent per bdi dirty limit
On Sat, 2007-10-27 at 17:12 +0200, Jiri Kosina wrote:
On Sat, 27 Oct 2007, Gabriel C wrote:
I found that today in dmesg after booting current git (
ec3b67c11df42362ccda81261d62829042f223f0 ) :
...
[ 592.752777]
[ 592.752781]
[
On Sat, 2007-10-27 at 11:22 -0400, Jan Harkes wrote:
On Sat, Oct 27, 2007 at 11:34:26AM +0200, Peter Zijlstra wrote:
I had me a little look at bdi usage in networked filesystems.
NFS, CIFS, (smbfs), AFS, CODA and NCP
And of those, NFS is the only one that I could find that creates
On Sat, 2007-10-27 at 09:02 -0700, Greg KH wrote:
Ah, I see a few problems. Here, try this version instead. It's
compile-tested only, and should be a lot simpler.
Note, we still are not setting the parent to the new bdi structure
properly, so the devices will show up in
On Sat, 2007-10-27 at 08:47 -0700, Arjan van de Ven wrote:
On Sat, 27 Oct 2007 17:12:41 +0200 (CEST)
Jiri Kosina [EMAIL PROTECTED] wrote:
On Sat, 27 Oct 2007, Gabriel C wrote:
I found that today in dmesg after booting current git (
ec3b67c11df42362ccda81261d62829042f223f0 ) :
On Sun, 2007-10-28 at 00:14 +0400, Alexey Dobriyan wrote:
On Sat, Oct 27, 2007 at 09:20:43PM +0200, Roman Zippel wrote:
On Sun, 21 Oct 2007, Alexey Dobriyan wrote:
So far remedies were:
a) grep(1) -- obviously fragile. I tried at some point grepping for
spin_lock_irqsave(), found
On Sat, 2007-10-27 at 16:02 -0500, Steve French wrote:
On 10/27/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
Hi,
I had me a little look at bdi usage in networked filesystems.
NFS, CIFS, (smbfs), AFS, CODA and NCP
And of those, NFS is the only one that I could find that creates
On Sat, 2007-10-27 at 23:08 +0200, Kay Sievers wrote:
On Sat, 2007-10-27 at 09:02 -0700, Greg KH wrote:
Ah, I see a few problems. Here, try this version instead. It's
compile-tested only, and should be a lot simpler.
Note, we still are not setting the parent to the new bdi structure
On Sat, 2007-10-27 at 23:30 +0200, Peter Zijlstra wrote:
On Sat, 2007-10-27 at 16:02 -0500, Steve French wrote:
On 10/27/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
Hi,
I had me a little look at bdi usage in networked filesystems.
NFS, CIFS, (smbfs), AFS, CODA and NCP
On Mon, 2007-10-29 at 01:17 -0700, Jaya Kumar wrote:
On 10/29/07, Andrew Morton [EMAIL PROTECTED] wrote:
On Mon, 22 Oct 2007 16:40:57 +0200 Stefani Seibold [EMAIL PROTECTED]
wrote:
The problem original occurs with the fb_defio driver
(driver/video/fb_defio.c).
This driver use
On Mon, 2007-10-29 at 11:11 +0100, Peter Zijlstra wrote:
On Mon, 2007-10-29 at 01:17 -0700, Jaya Kumar wrote:
On 10/29/07, Andrew Morton [EMAIL PROTECTED] wrote:
On Mon, 22 Oct 2007 16:40:57 +0200 Stefani Seibold [EMAIL PROTECTED]
wrote:
The problem original occurs
On Mon, 2007-10-29 at 01:17 -0700, Jaya Kumar wrote:
On 10/29/07, Andrew Morton [EMAIL PROTECTED] wrote:
On Mon, 22 Oct 2007 16:40:57 +0200 Stefani Seibold [EMAIL PROTECTED]
wrote:
The problem original occurs with the fb_defio driver
(driver/video/fb_defio.c).
This driver use
On Mon, 2007-10-29 at 13:51 -0400, Jaya Kumar wrote:
On 10/29/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
On Mon, 2007-10-29 at 01:17 -0700, Jaya Kumar wrote:
An aside, I just tested that deferred IO works fine on 2.6.22.10/pxa255.
I understood from the thread that PeterZ is looking
On Mon, 2007-10-29 at 21:41 +0100, Ingo Molnar wrote:
* Christian Borntraeger [EMAIL PROTECTED] wrote:
- return clock_t_to_cputime(utime);
+ p-prev_utime = max(p-prev_utime, clock_t_to_cputime(utime));
+ return p-prev_utime;
}
[...]
I dont think it will work. It will make
On Mon, 2007-10-29 at 19:17 +0100, Peter Zijlstra wrote:
On Mon, 2007-10-29 at 13:51 -0400, Jaya Kumar wrote:
On 10/29/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
On Mon, 2007-10-29 at 01:17 -0700, Jaya Kumar wrote:
An aside, I just tested that deferred IO works fine on 2.6.22.10/pxa255
On Mon, 2007-10-29 at 21:22 -0400, Jaya Kumar wrote:
On 10/29/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
[ also, remap_vmalloc_range() suffers similar issues, only file and anon
have proper rmap ]
I'm not sure we want full rmap for remap_pfn/vmalloc_range, but perhaps
we could
On Tue, 2007-10-30 at 12:39 +, Hugh Dickins wrote:
On Tue, 30 Oct 2007, Stefani Seibold wrote:
the question is how can i get all pte's from a vmalloc'ed memory. Due to
the zeroed mapping pointer i dont see how to do this?
The mapping pointer is zeroed because you've done nothing to
On Tue, 2007-10-30 at 09:16 -0400, Jaya Kumar wrote:
On 10/30/07, Peter Zijlstra [EMAIL PROTECTED] wrote:
So page-index does what you want it to, identify which part of the
framebuffer this particular page belongs to.
Ok. I'm attempting to walk the code sequence. Here's what I think
On Tue, 2007-10-30 at 15:47 +, Hugh Dickins wrote:
On Tue, 30 Oct 2007, Peter Zijlstra wrote:
On Tue, 2007-10-30 at 09:16 -0400, Jaya Kumar wrote:
- defio mmap adds this vma to private list (equivalent of
address_space or anon_vma)
- foreach vma { foreach page
GFP_NOFS is not enough, since swap traffic is IO, hence fall back to GFP_NOIO.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/pagelist.c |2 +-
fs/nfs/write.c|6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
Index: linux-2.6/fs/nfs/write.c
Provide a method to get the upper bound on the pages needed to allocate
a given number of objects from a given kmem_cache.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/slab.h |3 +
mm/slub.c| 82 +++
2 files
Move around the swap entry methods in preparation for use from
page methods.
Also provide a function to obtain the swap_info_struct backing
a swap cache page.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/mm.h |8
include/linux/swap.h| 48
Restrict objects from reserve slabs (ALLOC_NO_WATERMARKS) to allocation
contexts that are entitled to it.
Care is taken to only touch the SLUB slow path.
This is done to ensure reserve pages don't leak out and get consumed.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux
to charge SKB data
against in the fallback path.
The consumers for these reserves are sockets marked with:
SOCK_MEMALLOC
Such sockets are to be used to service the VM (iow. to swap over). They
must be handled kernel side, exposing such a socket to user-space is a BUG.
Signed-off-by: Peter Zijlstra
Provide means to reserve a specific amount of pages.
The emergency pool is separated from the min watermark because ALLOC_HARDER
and ALLOC_HIGH modify the watermark in a relative way and thus do not ensure
a strict minimum.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux
For now just use the -writepage() path for swap traffic. Trond would like
to see -swap_page() or some such additional a_op.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/write.c | 23 +++
1 file changed, 23 insertions(+)
Index: linux-2.6/fs/nfs/write.c
the
expected result, even for PG_swapcache pages.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/mm.h | 26 ++
include/linux/pagemap.h |2 +-
2 files changed, 27 insertions(+), 1 deletion(-)
Index: linux-2.6/include/linux/mm.h
Tag pages allocated from the reserves with a non-zero page-reserve.
This allows us to distinguish and account reserve pages.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/mm_types.h |1 +
mm/page_alloc.c |4 +++-
2 files changed, 4 insertions(+), 1 deletion
Replace all relevant occurences of page-index and page-mapping in the NFS
client with the new page_file_index() and page_file_mapping() functions.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/file.c |8
fs/nfs/internal.h |7 ---
fs/nfs/pagelist.c |6
Avoid memory getting stuck waiting for userspace, drop all emergency packets.
This of course requires the regular storage route to not include an NF_QUEUE
target ;-)
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
net/netfilter/core.c |3 +++
1 file changed, 3 insertions(+)
Index: linux
overhead to be limited to the later kind.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/mm_types.h |1
include/linux/skbuff.h | 25 +-
net/core/skbuff.c| 173 +--
3 files changed, 173 insertions(+), 26 deletions
Wrap calling sk-sk_backlog_rcv() in a function. This will allow extending the
generic sk_backlog_rcv behaviour.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net/sock.h |5 +
net/core/sock.c |4 ++--
net/ipv4/tcp.c |2 +-
net/ipv4/tcp_timer.c |2
In order to make sure emergency packets receive all memory needed to proceed
ensure processing of emergency SKBs happens under PF_MEMALLOC.
Use the (new) sk_backlog_rcv() wrapper to ensure this for backlog processing.
Skip taps, since those are user-space again.
Signed-off-by: Peter Zijlstra
that the
VM relies on it, and the address_space should take adequate measures (like
reserving memory for mempools or the like).
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
Documentation/filesystems/Locking |9 +
include/linux/buffer_head.h |2 -
include/linux/fs.h
Toss all emergency packets not for a SOCK_MEMALLOC socket. This ensures our
precious memory reserve doesn't get stuck waiting for user-space.
The correctness of this approach relies on the fact that networks must be
assumed lossy.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net
Factor out the gfp to alloc_flags mapping so it can be used in other places.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/internal.h | 11 ++
mm/page_alloc.c | 98
2 files changed, 67 insertions(+), 42 deletions
__GFP_MEMALLOC will allow the allocation to disregard the watermarks,
much like PF_MEMALLOC.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/gfp.h |3 ++-
mm/page_alloc.c |4 +++-
2 files changed, 5 insertions(+), 2 deletions(-)
Index: linux-2.6/include/linux
Currently conv routines will only generate -EINVAL, allow for other
errors to be propagetd.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sysctl.c | 11 ++-
1 file changed, 6 insertions(+), 5 deletions(-)
Index: linux-2.6/kernel/sysctl.c
Add some packet-split receive hooks.
For one this allows to do NUMA node affine page allocs. Later on these hooks
will be extended to do emergency reserve allocations for fragments.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
drivers/net/e1000/e1000_main.c |8 ++--
drivers/net
Introduce sk_allocation(), this function allows to inject sock specific
flags to each sock related allocation.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net/sock.h|7 ++-
net/ipv4/tcp_output.c | 11 ++-
net/ipv6/tcp_ipv6.c | 14 +-
3 files
There is a small race between the procfs caller and the memory hotplug caller
of setup_per_zone_pages_min(). Not a big deal, but the next patch will add yet
another caller. Time to close the gap.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/page_alloc.c | 16 +---
1 file
Generic reserve management code.
It provides methods to reserve and charge. Upon this, generic alloc/free style
reserve pools could be build, which could fully replace mempool_t
functionality.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/reserve.h | 54 +
mm/Makefile
the SOCK_MEMALLOC sockets from the rmem limit.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net/sock.h |7 ---
net/core/stream.c |5 +++--
2 files changed, 7 insertions(+), 5 deletions(-)
Index: linux-2.6/include/net/sock.h
races with invalidate_inode_pages2() to deal with.
And since we cannot set PG_private we cannot use page-private (which is
already used by PG_swapcache pages anyway) to store the nfs_page. Thus
augment the new nfs_page_find_request logic.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs
Hi,
Another posting of the full swap over NFS series.
[ I tried just posting the first part last time around, but
that just gets more confusion by lack of a general picture ]
[ patches against 2.6.23-mm1, also to be found online at:
With the introduction of the shared dirty page accounting in .19, NFS should
not be able to surpise the VM with all dirty pages. Thus it should always be
able to free some memory. Hence no more need for mempools.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/read.c | 15
and the early (re)setting of SOCK_MEMALLOC should allow us to receive the
packets
required for the TCP connection buildup.
(swapping continues over a server reset during heavy network traffic)
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/Kconfig | 18
fs
Allow the mempool to use the memalloc reserves when all else fails and
the allocation context would otherwise allow it.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/mempool.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
Index: linux-2.6/mm/mempool.c
Allow PF_MEMALLOC to be set in softirq context. When running softirqs from
a borrowed context save current-flags, ksoftirqd will have its own
task_struct.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sched.h |4
kernel/softirq.c |3 +++
mm/page_alloc.c
Failing to allocate a cache entry will only harm performance not correctness.
Do not consume valuable reserve pages for something like that.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
Acked-by: James Morris [EMAIL PROTECTED]
---
security/selinux/avc.c |2 +-
1 file changed, 1 insertion
reserve
protocol TX pages
network RX reserve
+ IPv6 route cache
+ IPv4 route cache
SKB data reserve
+ IPv6 fragment cache
+ IPv4 fragment cache
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/sysctl.h
GFP_ATOMIC failures are rather common, no not warn about them.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/inode.c |2 +-
fs/nfs/write.c | 10 ++
2 files changed, 11 insertions(+), 1 deletion(-)
Index: linux-2.6/fs/nfs/inode.c
Change ALLOC_NO_WATERMARK page allocation such that the reserves are system
wide - which they are per setup_per_zone_pages_min(), when we scrape the
barrel, do it properly.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/page_alloc.c |6 ++
1 file changed, 6 insertions(+)
Index
On Tue, 2007-10-30 at 13:24 -0400, Mathieu Desnoyers wrote:
* Jeff Garzik ([EMAIL PROTECTED]) wrote:
...
Pick a shorter word like probes or profile or what... or better yet...
just leave most things in their current directories.
...
How about something along the
kinst or ki
On Tue, 2007-10-30 at 14:26 -0700, Stephen Hemminger wrote:
On Tue, 30 Oct 2007 17:04:24 +0100
Peter Zijlstra [EMAIL PROTECTED] wrote:
In order to make sure emergency packets receive all memory needed to proceed
ensure processing of emergency SKBs happens under PF_MEMALLOC.
Use
On Tue, 2007-10-30 at 21:37 -0700, David Miller wrote:
From: Nick Piggin [EMAIL PROTECTED]
Date: Wed, 31 Oct 2007 14:26:32 +1100
Is it really worth all the added complexity of making swap
over NFS files work, given that you could use a network block
device instead?
Don't be misled.
-by: Peter Zijlstra [EMAIL PROTECTED]
---
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 3b4efbe..0f34c91 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -94,6 +94,7 @@ static int two = 2;
static int zero;
static int one_hundred = 100;
+static int int_max = INT_MAX;
/* this is needed
On Wed, 2007-10-31 at 14:37 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Restrict objects from reserve slabs (ALLOC_NO_WATERMARKS) to allocation
contexts that are entitled to it.
Care is taken to only touch the SLUB slow path.
This is done
On Wed, 2007-10-31 at 14:43 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Provide a method to get the upper bound on the pages needed to allocate
a given number of objects from a given kmem_cache.
Fair enough, but just to make it a bit easier, can
On Wed, 2007-10-31 at 14:51 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Allow PF_MEMALLOC to be set in softirq context. When running softirqs from
a borrowed context save current-flags, ksoftirqd will have its own
task_struct.
What's
On Wed, 2007-10-31 at 14:52 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Change ALLOC_NO_WATERMARK page allocation such that the reserves are system
wide - which they are per setup_per_zone_pages_min(), when we scrape the
barrel, do it properly
On Wed, 2007-10-31 at 08:50 +, Christoph Hellwig wrote:
On Tue, Oct 30, 2007 at 09:37:53PM -0700, David Miller wrote:
Don't be misled. Swapping over NFS is just a scarecrow for the
seemingly real impetus behind these changes which is network storage
stuff like iSCSI.
So can we
On Wed, 2007-10-31 at 12:18 +0100, Pavel Machek wrote:
Hi!
So please get the VM bits for swap over network blockdevices in first,
Trouble with that part is that we don't have any sane network block
devices atm, NBD is utter crap, and iSCSI is too complex to be called
sane.
Hey,
On Wed, 2007-10-31 at 14:26 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Hi,
Another posting of the full swap over NFS series.
Hi,
Is it really worth all the added complexity of making swap
over NFS files work, given that you could use a network
On Wed, 2007-10-31 at 21:46 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 21:42, Peter Zijlstra wrote:
On Wed, 2007-10-31 at 14:37 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Restrict objects from reserve slabs (ALLOC_NO_WATERMARKS
On Wed, 2007-10-31 at 22:25 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 23:17, Peter Zijlstra wrote:
On Wed, 2007-10-31 at 21:46 +1100, Nick Piggin wrote:
And I'd prevent these ones from doing so.
Without keeping track of reserve pages, which doesn't feel
too clean
On Wed, 2007-10-31 at 08:16 -0400, Jeff Garzik wrote:
Thoughts:
1) I absolutely agree that NFS is far more prominent and useful than any
network block device, at the present time.
2) Nonetheless, swap over NFS is a pretty rare case. I view this work
as interesting, but I really don't
On Wed, 2007-10-31 at 21:49 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 21:42, Peter Zijlstra wrote:
On Wed, 2007-10-31 at 14:51 +1100, Nick Piggin wrote:
On Wednesday 31 October 2007 03:04, Peter Zijlstra wrote:
Allow PF_MEMALLOC to be set in softirq context. When running
On Wed, 2007-10-31 at 13:54 +0100, Peter Zijlstra wrote:
On Wed, 2007-10-31 at 22:25 +1100, Nick Piggin wrote:
What I'm saying is that the slab allocator slowpath should always
just check watermarks against the current task. Instead of this
-reserve stuff.
So what you say is to allocate
Hi,
Commit: b9dca1e0fcb696716840a3bc8f20a6941b484dbf
seems to me that by calling enqueue_fair_task() from task_new_fair() is
wrong. The wakeup=1 in enqueue_fair_task() will cause all non-top
sched_entities to be re-positioned by place_entity().
Although the current implementation thereof seems
On Wed, 2007-10-31 at 11:44 -0400, Gregory Haskins wrote:
Hi Greg,
Here is the backported version of the patch. I applied it on top of
2.6.22.10. Let me know if you have any issues.
-Greg
Thanks Gregory!
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
Add a few comments to place_entity().
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
kernel/sched_fair.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
Index: linux-2.6/kernel/sched_fair.c
===
--- linux
-by: Peter Zijlstra [EMAIL PROTECTED]
CC: Srivatsa Vaddagiri [EMAIL PROTECTED]
---
kernel/sched_fair.c | 42 +++---
1 file changed, 31 insertions(+), 11 deletions(-)
Index: linux-2.6/kernel/sched_fair.c
401 - 500 of 42291 matches
Mail list logo
