Pekka J Enberg a écrit :
Thanks for the profile. I still wonder where exactly thouse super-hot
call-sites are...
In this case, it's a typical network server
Each time a packet is sent to or received from network, network stack has to
allocate/free a skb (kmem_cache_alloc()/kmem_cache_free()
Andrew Morton napisał(a):
> Temporarily at
>
> http://userweb.kernel.org/~akpm/2.6.21-rc4-mm1/
>
Some new details about
http://www.ussg.iu.edu/hypermail/linux/kernel/0703.2/1367.html
I can reproduce it by running this on AutoTest
for profiler in ('oprofile', ):
try:
p
On 3/19/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
> > > This is a super-hot path.
At some point in time, I wrote:
> > Super-hot exactly where?
On Tue, 20 Mar 2007, Eric Dumazet wrote:
> Don't be silly Pekka ... We have plenty oprofiles results if you dont trust
> Andrew.
Oh, don't get me wron
On Mon, Mar 19, 2007 at 04:57:37PM +0100, Peter Zijlstra wrote:
> This patch-set implements per device dirty page throttling. Which should solve
> the problem we currently have with one device hogging the dirty limit.
>
> Preliminary testing shows good results:
I just ran some higher throughput n
On Mon, 19 Mar 2007 10:33:42 +0100 Adrian Bunk <[EMAIL PROTECTED]> wrote:
> The return value of kernel_recvmsg() should be assigned to "err", not
> compared with the random value of a never initialized "err"
> (and the "< 0" check wrongly always returned false since == comparisons
> never have a
On Mon, 2007-03-19 at 16:42 -0700, Andrew Morton wrote:
> hm, did you try running this on x86_64?
I don't have any. I only tested it on PowerPC and i386. Others then
provided more exclusions for SPARC and maybe ARM, although I'm not sure
you have the latter yet. It's not hard to add extra exclusio
Pekka Enberg a écrit :
On 3/19/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
This is a super-hot path.
Super-hot exactly where?
Don't be silly Pekka ... We have plenty oprofiles results if you dont trust
Andrew.
CPU: AMD64 processors, speed 1992.52 MHz (estimated)
Counted CPU_CLK_UNHALTED
Hello Adrian,
reverting d9a7ecacac5f8274d2afce09aadcf37bdb42b93a does help.
thanks !
On Mon, 2007-03-19 at 17:34 +0100, Adrian Bunk wrote:
> On Mon, Mar 19, 2007 at 05:27:58PM +0200, Zilvinas Valinskas wrote:
> > Hello,
> >
> > Before 2.6.21-rc4 (vanilla) serial was oopsing if I pull usb-seri
On Sun, 18 Mar 2007 21:50:46 +0100 Stefan Priebe <[EMAIL PROTECTED]> wrote:
> Hello!
>
> We've a very strange Problem with Kernel 2.6.20.x
>
> If i try to access a SCSI or SATA Disk (tested with Adaptec U320
> ASC-29320, ICP Vortex 9024, Promise TX300) the whole server hangs - no
> output - no
[EMAIL PROTECTED] napisał(a):
> The mm snapshot broken-out-2007-03-18-02-44.tar.gz has been uploaded to
>
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/mm/broken-out-2007-03-18-02-44.tar.gz
>
> It contains the following patches against 2.6.21-rc4:
PM: Adding info for No Bus:vcsa7
BUG
Hello,
Andrew Morton wrote:
> On Mon, 19 Mar 2007 13:19:00 +0800 Nicolas Boichat <[EMAIL PROTECTED]> wrote:
>
>
>> This driver provides support for the Apple System Management Controller,
>> which
>> provides an accelerometer (Apple Sudden Motion Sensor), light sensors,
>> temperature sensors,
On Mon, 19 Mar 2007, Bob Tracy wrote:
> I applied all of the 2.6.21-rc2-rc3 incremental patch except for the
> portion applicable to "drivers/ide" files. The problem seems to be
> elsewhere: 2.6.21-rc3 minus the drivers/ide changes still hangs at the
> same spot during the boot process. Any id
On 3/19/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
This is a super-hot path.
Super-hot exactly where?
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Plea
On 3/19/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
The BUG_ON (at least) should probably be moved into CONFIG_DEBUG_SLAB.
No it shouldn't. Letting non-slab pages pass through causes nasty and
hard to debug problems which is why we have the BUG_ONs in the first
place:
http://lkml.org/lkml/200
Hello,
Bob Copeland wrote:
> On 3/14/07, Nicolas Boichat <[EMAIL PROTECTED]> wrote:
>> Hello,
>>
>> I developed, a while ago, a driver the Apple System Management
>> Controller, which provides an accelerometer (Apple Sudden Motion
>> Sensor), light sensors, temperature sensors, keyboard backlight
In todays 2.6.21-rc4+git the following news warning has appeared on my
ppc computer:
CC [M] drivers/ata/libata-core.o
drivers/ata/libata-core.c: In function 'ata_sg_clean':
drivers/ata/libata-core.c:3558: warning: unused variable 'dir'
--
Meelis Roos ([EMAIL PROTECTED])
-
To unsubscribe from
On Mon, Mar 19, 2007 at 11:32:27AM +0100, Marco Berizzi wrote:
> Marco Berizzi wrote:
> > David Chinner wrote:
> >
> >> Ok, so an ipsec change. And I see from the history below it
> >> really has nothing to do with this problem. it seems the problem
> >> has something to do with changes between 2.6
Dell SC1425 x86_64 running in i386 mode (the problem also occurs in
x86_64 mode). Kernel 2.6.21-rc4, gcc 4.1.0. Config extract at end.
Booting with 'console=tty console=ttyS0,9600'. The serial console on
ttyS0 (0x3f8, irq 4) is probed twice, once from serial8250_init() and
again from serial_pnp
On Thu, 15 Mar 2007 15:10:23 +0100 Michal Januszewski <[EMAIL PROTECTED]> wrote:
> On a multiprocessor machine the VT_WAITACTIVE ioctl call may return 0
> if fg_console has already been updated in redraw_screen(), but the
> console switch itself hasn't been completed. Fix this by checking
> fg_co
OGAWA Hirofumi wrote:
"Alexander E. Patrakov" <[EMAIL PROTECTED]> writes:
But, anyway, this is a separate issue that my patch doesn't attempt to
correct. The conclusion so far is that we disagree, and that there are
situations where using utf8 iocharset is the least of all evils, so the
warni
On Mon, 2007-03-19 at 21:27 -0700, Greg KH wrote:
> On Sat, Mar 17, 2007 at 02:26:57PM +0100, Andi Kleen wrote:
> > Arjan van de Ven <[EMAIL PROTECTED]> writes:
> > >
> > > well we can do the handshake to take ownership like we do much later in
> > > boot, but that requires PCI to be there and ful
On Mon, 2007-03-19 at 20:05 -0500, Matt Mackall wrote:
> On Tue, Mar 20, 2007 at 01:42:46AM +0100, Thomas Gleixner wrote:
> > On Mon, 2007-03-19 at 17:32 -0500, Matt Mackall wrote:
> > > This is exactly the same problem as booting on a desktop PC. But
> > > somehow LILO manages. My first Linux box
Rik van Riel wrote:
Split the anonymous and file backed pages out onto their own pageout
queues. This we do not unnecessarily churn through lots of anonymous
pages when we do not want to swap them out anyway.
This should (with additional tuning) be a great step forward in
scalability, allowing
On Mon, Mar 19, 2007 at 08:11:55PM -0700, Linus Torvalds wrote:
> Quite frankly, I was *planning* on merging RSDL very early after 2.6.21,
> but there is one thing that has turned me completely off the whole thing:
>
> - the people involved seem to be totally unwilling to even admit there
>
On Mon, Mar 19, 2007 at 09:44:28PM +0100, Blaisorblade wrote:
> On Sunday 18 March 2007 03:50, Nick Piggin wrote:
> > > >
> > > > Yes, I believe that is the case, however I wonder if that is going to
> > > > be a problem for you to distinguish between write faults for clean
> > > > writable ptes, a
Zachary Amsden wrote:
> For VMI, the default clobber was "cc", and you need a way to allow at
> least that, because saving and restoring flags is too expensive on x86.
According to lore (Andi, I think), asm() always clobbers cc.
> I still don't think this was a good trade. The primary motivatio
On Tue, 2007-20-03 at 01:04 -0400, Lee Revell wrote:
> I think CONFIG_TRY_TO_DISABLE_SMI would be excellent for debugging,
> not to mention people trying to spec out hardware for RT
> applications...
There is a SMI disabling module in RTAI, check the smi-module.c in this:
https://www.rtai.org/RT
Christoph Hellwig wrote:
On Mon, Mar 19, 2007 at 09:11:31PM +1100, Nick Piggin wrote:
I've got the patches in -mm now. I hope they will get merged when the
the next window opens.
I didn't submit the ->page_mkwrite conversion yet, because I didn't
have any callers to look at. It is is slightly
Nick Piggin wrote:
Andrew Morton wrote:
On Tue, 20 Mar 2007 13:47:53 +1100 Nick Piggin
<[EMAIL PROTECTED]> wrote:
Andrew Morton wrote:
Hang on a sec... I'll try fixing the thing before you next make a
release.
Too late. hot-fixes/ awaits thee.
Awww... well thanks very much Micha
Andrew Morton wrote:
On Tue, 20 Mar 2007 13:47:53 +1100 Nick Piggin <[EMAIL PROTECTED]> wrote:
Andrew Morton wrote:
Hang on a sec... I'll try fixing the thing before you next make a
release.
Too late. hot-fixes/ awaits thee.
Awww... well thanks very much Michal for reporting the bug
On Monday 19 March 2007, Greg KH wrote:
>This is the start of the stable review cycle for the 2.6.20.4 release.
>There are 31 patches in this series, all will be posted as a response
>to this one. If anyone has any issues with these being applied, please
>let us know. If anyone is a maintainer of
> I've attached a patch below the optimizes this code path for powerpc,
> but the scheme applies to all architectures aswell. It just rips out all
> the callachin madness, and does as good as it gets in the pagefault
> handler:
NAK, patch on the way to get rid of all the debugger() crap by using
On 3/16/07, Thomas Gleixner <[EMAIL PROTECTED]> wrote:
Yes, this is probably caused by SMM code trying to emulate a PS/2
keyboard from a (maybe connected or not) USB keyboard. Unfortunately we
have no way to disable this BIOS misfeature in the early boot process.
https://mail.rtai.org/pipermail
Temporarily at
http://userweb.kernel.org/~akpm/2.6.21-rc4-mm1/
Will appear later at
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc4/2.6.21-rc4-mm1/
- Restored the RSDL CPU scheduler (a new version thereof)
Boilerplate:
- See the `hot-fixes' directory for any
On Tue, 20 Mar 2007 13:47:53 +1100 Nick Piggin <[EMAIL PROTECTED]> wrote:
> Andrew Morton wrote:
> > On Mon, 19 Mar 2007 17:58:52 -0800 Andrew Morton <[EMAIL PROTECTED]> wrote:
> >
> >
> >>The kernel without Nick's patchset but with the assert runs OK too. Under
> >>the principle of mm-has-been
Christoph Lameter writes:
> +static inline void *quicklist_alloc(int nr, gfp_t flags, void (*ctor)(void
> *))
> +{
...
> + p = (void *)__get_free_page(flags | __GFP_ZERO);
This will cause problems on 64-bit powerpc, at least with 4k pages,
since the pmd and pgd levels only use 1/4 of a pag
On Sat, Mar 17, 2007 at 02:26:57PM +0100, Andi Kleen wrote:
> Arjan van de Ven <[EMAIL PROTECTED]> writes:
> >
> > well we can do the handshake to take ownership like we do much later in
> > boot, but that requires PCI to be there and fully discovered, which we
> > don't have this early.
>
> That
Randy Dunlap wrote:
The we duplicate all the relevant /proc knobs:
cat /proc/sys/vm/dirty_ratio
30
cat /proc/sys/vm/hires-dirty_ratio/
30
Or we do something else ;)
Sounds better. I wasn't very keen on the userspace interface that this
exposed. Will look at those.
Okay... may be I c
On Mon, 2007-03-19 at 18:00 -0800, Zachary Amsden wrote:
> Rusty Russell wrote:
> > *This* was the reason that the current hand-coded calls only clobber %
> > eax. It was a compromise between native (no clobbers) and others (might
> > need a reg).
>
> I still don't think this was a good trade.
..
David Miller <[EMAIL PROTECTED]> writes:
> From: Linus Torvalds <[EMAIL PROTECTED]>
> Date: Mon, 19 Mar 2007 20:18:14 -0700 (PDT)
>
>> > > Please don't subject us to another couple months of hair-pulling only
>> > > to have Linus yank the thing out again, there are certainly more
>> > > useful thi
On Mon, Mar 19, 2007 at 05:48:55PM -0400, Dmitry Torokhov wrote:
> On 3/19/07, Greg KH <[EMAIL PROTECTED]> wrote:
> > -stable review patch. If anyone has any objections, please let us know.
> >
> > --
> >
> > From: Dmitry Torokhov <[EMAIL PROTECTED]>
> >
> > Input: i8042 - fix AUX
On Mon, Mar 19, 2007 at 03:01:25PM -0700, Chris Wright wrote:
> * Greg KH ([EMAIL PROTECTED]) wrote:
> > From: Chris Wright <[EMAIL PROTECTED]>
> >
> > [IPV6] fix ipv6_getsockopt_sticky copy_to_user leak
> >
> > User supplied len < 0 can cause leak of kernel memory.
> > Use unsigned compare inste
From: Linus Torvalds <[EMAIL PROTECTED]>
Date: Mon, 19 Mar 2007 20:18:14 -0700 (PDT)
> > > Please don't subject us to another couple months of hair-pulling only
> > > to have Linus yank the thing out again, there are certainly more
> > > useful things to spend time on :-)
>
> Good call. Dwarf2 un
Tony Vroon wrote:
The first user of ata_ac_issue_prot_with_ledtrigger, the ServerWorks Frodo/
Apple K2 driver. Used by the IDE LED trigger on G5 towers.
Respin of an earlier patch, based on comments by Tejun Heo & Alan Cox.
Just two comments.
1. IMHO, ata_qc_issue_prot_ledtrigger() without 'wi
On Mon, 19 Mar 2007, Andi Kleen wrote:
>
> Initially we had some bugs that accounted for near all failures, but they
> were all fixed in the latest version.
No. The real bugs were that the people involved wouldn't even accept that
unwinding information was inevitably buggy and/or incomplete.
On Mon, 19 Mar 2007, Xavier Bestel wrote:
> > >> Stock scheduler wins easily, no contest.
> > >
> > > What happens when you renice X ?
> >
> > Dunno -- not necessary with the stock scheduler.
>
> Could you try something like renice -10 $(pidof Xorg) ?
Could you try something as simple and acc
Andrew Morton wrote:
On Mon, 19 Mar 2007 17:58:52 -0800 Andrew Morton <[EMAIL PROTECTED]> wrote:
The kernel without Nick's patchset but with the assert runs OK too. Under
the principle of mm-has-been-too-flakey-lately, I'll drop the patches:
mm-debug-check-for-the-fault-vs-invalidate-race.pa
Just trying to generate an example bounce so Intel can fix
their attachment email filters, ignore me.
#!/bin/sh
#
# Usage: git suck path-to-tree
#
# Pull all patches relative to 'origin' from the tree specified
# and apply them to the current directory tree, keeping all changelog
# and authorship
> can anyone suggest me a proper way how to schedule UDP packets to
> transmit at
> some given rate?
>
> E.g., I have two boxes both having 10 GE interfaces. One box is able to
> transmit at 9.9Gbps, the other one is able to receive only at
> about 5.5Gbps.
> Flow control must be turned off for so
From: Adrian Bunk <[EMAIL PROTECTED]>
Date: Sun, 18 Mar 2007 19:49:38 +0100
> Subject: ipv6 crash
> References : http://lkml.org/lkml/2007/3/10/2
> Submitter : Len Brown <[EMAIL PROTECTED]>
> Status : unknown
This is caused by some problem in the router round-robin code in
net/ipv6/route
On Wed, 2007-03-14 at 16:33 -0700, Siddha, Suresh B wrote:
> On Tue, Mar 13, 2007 at 05:08:59AM -0700, Nick Piggin wrote:
> > I would agree that it points to MySQL scalability issues, however the
> > fact that such large gains come from tcmalloc is still interesting.
>
> What glibc version are you
On Saturday, March 17, 2007 2:33 PM, James W. Laferriere wrote:
> Hello All , I am have been having this problem since I
> purchased the
> controller and after changing out the disks I thought were
> the problem .
> I am still getting the continous :
>
> mptscsih: ioc1: attempting
On Mon, 19 Mar 2007 17:58:52 -0800 Andrew Morton <[EMAIL PROTECTED]> wrote:
> The kernel without Nick's patchset but with the assert runs OK too. Under
> the principle of mm-has-been-too-flakey-lately, I'll drop the patches:
>
> mm-debug-check-for-the-fault-vs-invalidate-race.patch
> mm-simplify
Rusty Russell wrote:
On Mon, 2007-03-19 at 11:38 -0700, Linus Torvalds wrote:
On Mon, 19 Mar 2007, Eric W. Biederman wrote:
True. You can use all of the call clobbered registers.
Quite often, the biggest single win of inlining is not so much the code
size (although if done righ
On Mon, 19 Mar 2007 22:37:46 +0100 "Michal Piotrowski" <[EMAIL PROTECTED]>
wrote:
> On 19/03/07, Andrew Morton <[EMAIL PROTECTED]> wrote:
> > On Mon, 19 Mar 2007 20:23:40 +0100
> > Michal Piotrowski <[EMAIL PROTECTED]> wrote:
> >
> > > [EMAIL PROTECTED] napisał(a):
> > > > The mm snapshot broken-
Zachary Amsden wrote:
> Jeremy Fitzhardinge wrote:
>> If we then work out in each direction and see matched push/pops,
>> then we know what registers can be trashed in the call. This also
>> allows us to determine the callsite size, and therefore how much space
>> we need for inlining.
>>
>
>
Jiri wrote:
> Looks like it's related to some change in drivers/ide. As there have been
> only 13 patches in this area between rc2 and rc3, it should take only 3 or
> 4 reboots to figure the offending patch using git-bisect - could you
> please give it a try?
I applied all of the 2.6.21-rc2-rc3
On Tue, 20 Mar 2007, Thomas Gleixner wrote:
> > + error = -ENFILE;
> > + file = get_empty_filp();
> > + if (!file)
> > + goto eexit_1;
>
> make this "return -ENFILE;" please
Done
> > + inode = aino_getinode();
> > + if (IS_ERR(inode)) {
> > + error = PTR_ERR(inode
On Tue, 20 Mar 2007, Eric Dumazet wrote:
> Davide Libenzi a écrit :
>
> > +struct timerfd_ctx {
> > + struct hrtimer tmr;
> > + ktime_t tintv;
> > + spinlock_t lock;
> > + wait_queue_head_t wqh;
> > + unsigned long ticks;
> > +};
>
> > +static struct kmem_cache *timerfd_ctx_cachep;
>
On Mon, 19 Mar 2007 18:03:54 -0700 (PDT) Christoph Lameter <[EMAIL PROTECTED]>
wrote:
> On Mon, 19 Mar 2007, Andrew Morton wrote:
>
> > > See the patch. We are only touching 2 cachelines instead of 32. So even
> > > without considering the page allocator overhead and the slab allocator
> > > o
Jeremy Fitzhardinge wrote:
For example, say we wanted to put a general call for sti into entry.S,
where its expected it won't touch any registers. In that case, we'd
have a sequence like:
push %eax
push %ecx
push %edx
call paravirt_cli
pop %edx
pop %ecx
pop %eax
On Tue, Mar 20, 2007 at 01:42:46AM +0100, Thomas Gleixner wrote:
> On Mon, 2007-03-19 at 17:32 -0500, Matt Mackall wrote:
> > > > If a static volume is simply a non-dynamic volume, then device mapper
> > > > can do that too. And countless other things. Which is not an aside.
> > > > UBI growing to
On Mon, 2007-03-19 at 22:51 +0100, Stefan Prechtel wrote:
> 2007/3/19, Thomas Gleixner <[EMAIL PROTECTED]>:
> > On Mon, 2007-03-19 at 21:35 +0100, Stefan Prechtel wrote:
> > >CPU0 CPU1
> > > 0: 28289 0 local-APIC-edge-fasteio timer
> > > ...
> > > LOC: 28237
On Mon, 19 Mar 2007, Andrew Morton wrote:
> > +
> > +#ifdef CONFIG_QUICKLIST
> > +
> > +#ifndef CONFIG_NR_QUICK
> > +#define CONFIG_NR_QUICK 1
> > +#endif
>
> No, please don't define config items like this. Do it in Kconfig.
They can be set up in the arch specific Kconfig. Ok. I moved the
#ifn
Rik van Riel wrote:
Split the anonymous and file backed pages out onto their own pageout
queues. This we do not unnecessarily churn through lots of anonymous
pages when we do not want to swap them out anyway.
Please take this patch for a spin and let me know what goes well
and what goes wrong
On Mon, 19 Mar 2007, Andrew Morton wrote:
> > See the patch. We are only touching 2 cachelines instead of 32. So even
> > without considering the page allocator overhead and the slab allocator
> > overhead (which will make the situation even better) its superior.
>
> That's not proof, it is han
On Wed, 7 Mar 2007 17:23:05 -0500, "Dmitry Torokhov" <[EMAIL PROTECTED]> wrote:
> It seems that if a process keeps a character device open then other
> processes will also be able to get into filp->f_op->open(inode,filp)
> in chrdev_open() even after a driver called cdev_del() as part of its
> unw
Davide,
On Mon, 2007-03-19 at 16:47 -0700, Davide Libenzi wrote:
> This patch add an anonymous inode source, to be used for files that need
> and inode only in order to create a file*. We do not care of having an
> inode for each file, and we do not even care of having different names in
> the
On Monday 19 March 2007 22:43:20 you wrote:
> Hi,
>
> On Monday, 19 March 2007 13:50, Tobias Doerffel wrote:
> > Hi,
> >
> > Suspend to RAM used to work fine on my computer (Intel Core Duo, 1 GB
> > RAM, Intel 82801G (ICH7-chipset) mainboard, NVIDIA-gfx-card,
> > tg3-ethernet) up to 2.6.20.3. But n
On Mon, 19 Mar 2007 17:44:28 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Mon, 19 Mar 2007, Andrew Morton wrote:
>
> > Please provide proof that quicklists are superior to simply going direct to
> > the page allocator for these pages.
>
> See the patch. We are only touching 2 ca
On Mon, 19 Mar 2007 17:39:15 -0700 Andrew Morton wrote:
> On Mon, 19 Mar 2007 17:27:11 -0700
> Randy Dunlap <[EMAIL PROTECTED]> wrote:
>
> > On Wed, 7 Mar 2007 20:19:15 -0800 Andrew Morton wrote:
> >
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc3/2.6.21-rc3
Split the anonymous and file backed pages out onto their own pageout
queues. This we do not unnecessarily churn through lots of anonymous
pages when we do not want to swap them out anyway.
This should (with additional tuning) be a great step forward in
scalability, allowing Linux to run well on
Hello,
can anyone suggest me a proper way how to schedule UDP packets to transmit at
some given rate?
E.g., I have two boxes both having 10 GE interfaces. One box is able to
transmit at 9.9Gbps, the other one is able to receive only at about 5.5Gbps.
Flow control must be turned off for some other
Tasos Parisinos <[EMAIL PROTECTED]> :
[...]
RSA is slow. syscalls are fast.
Which part of the kernel is supposed to benefit from this code ?
--
Ueimor
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To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at
On Mon, 19 Mar 2007, Andrew Morton wrote:
> Please provide proof that quicklists are superior to simply going direct to
> the page allocator for these pages.
See the patch. We are only touching 2 cachelines instead of 32. So even
without considering the page allocator overhead and the slab alloc
On Mon, 19 Mar 2007 17:27:11 -0700
Randy Dunlap <[EMAIL PROTECTED]> wrote:
> On Wed, 7 Mar 2007 20:19:15 -0800 Andrew Morton wrote:
>
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc3/2.6.21-rc3-mm2/
> >
> > - This is the same as 2.6.21-rc3-mm1, except Con's CPU s
Davide Libenzi a écrit :
+struct timerfd_ctx {
+ struct hrtimer tmr;
+ ktime_t tintv;
+ spinlock_t lock;
+ wait_queue_head_t wqh;
+ unsigned long ticks;
+};
+static struct kmem_cache *timerfd_ctx_cachep;
+ timerfd_ctx_cachep = kmem_cache_create("timerfd_
On Mon, 2007-03-19 at 16:36 -0500, Matt Mackall wrote:
> On Mon, Mar 19, 2007 at 11:06:33PM +0200, Artem Bityutskiy wrote:
> > On Mon, 2007-03-19 at 14:54 -0500, Matt Mackall wrote:
> > > The issue is 14000 lines of patch to make a parallel subsystem.
> >
> > Parallel system exists since very long
On Mon, 2007-03-19 at 17:32 -0500, Matt Mackall wrote:
> > > If a static volume is simply a non-dynamic volume, then device mapper
> > > can do that too. And countless other things. Which is not an aside.
> > > UBI growing to do all the things that device mapper does is exactly
> > > the thing we s
On Mon, 12 Mar 2007 22:19:20 +0100
"Rafael J. Wysocki" <[EMAIL PROTECTED]> wrote:
> Make swsusp use memory bitmaps instead of page flags for marking 'nosave' and
> free pages. This allows us to 'recycle' two page flags that can be used for
> other
> purposes. Also, the memory needed to store th
On Wed, 7 Mar 2007 20:19:15 -0800 Andrew Morton wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc3/2.6.21-rc3-mm2/
>
> - This is the same as 2.6.21-rc3-mm1, except Con's CPU scheduler changes
> were dropped.
>
> This is for A/B comparison purposes, and becau
On Tue, 20 Mar 2007, Oleg Nesterov wrote:
> On 03/19, Davide Libenzi wrote:
> >
> > +static void signalfd_unlock(struct signalfd_ctx *ctx,
> > + struct signalfd_lockctx *lk)
> > +{
> > + unlock_task_sighand(lk->tsk, &lk->flags);
> > +}
>
> Again, this is a matter of taste.
On 03/19, Davide Libenzi wrote:
>
> +static void signalfd_unlock(struct signalfd_ctx *ctx,
> + struct signalfd_lockctx *lk)
> +{
> + unlock_task_sighand(lk->tsk, &lk->flags);
> +}
Again, this is a matter of taste. But I can't understand why signalfd_unlock()
needs "sign
On Tue, 20 Mar 2007, Oleg Nesterov wrote:
> On 03/19, Davide Libenzi wrote:
> >
> > +struct signalfd_lockctx {
> > + struct task_struct *tsk;
> > + struct sighand_struct *sighand;
> > + unsigned long flags;
> > +};
>
> signalfd_lockctx is "private" to signalfd_lock/signalfd_unlock. But
> l
On Mon, 19 Mar 2007 15:37:16 -0800 (PST)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> ...
>
> --- /dev/null 1970-01-01 00:00:00.0 +
> +++ linux-2.6.21-rc3-mm2/include/linux/quicklist.h2007-03-16
> 02:19:15.0 -0700
> @@ -0,0 +1,95 @@
> +#ifndef LINUX_QUICKLIST_H
> +#defin
On 03/19, Davide Libenzi wrote:
>
> +struct signalfd_lockctx {
> + struct task_struct *tsk;
> + struct sighand_struct *sighand;
> + unsigned long flags;
> +};
signalfd_lockctx is "private" to signalfd_lock/signalfd_unlock. But lk->sighand
is used only by signalfd_lock(). I'd suggest to
On Mon, 19 Mar 2007 16:57:55 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Mon, 19 Mar 2007, Andrew Morton wrote:
>
> > Has it been proven that quicklists are superior to simply going direct to
> > the
> > page allocator for these pages?
>
> Yes.
Sigh.
Please provide proof tha
Hiyas,
at the moment, some file in Documentation are utf-8 encoded and some are
latin1 encoded. Therefore I propose to change the default encoding to utf-8,
because this is the encoding that may current linux distributions use.
I can send a patch, if required. If you want to change the encoding
19.03.2007 22:28, Dmitry Torokhov wrote/a écrit:
On 3/15/07, Éric Piel <[EMAIL PROTECTED]> wrote:
Ok, so let me summarize:
There are two kinds of keys on those laptops (for which we are not sure
about the keycode that it should generate):
* Laptop screen on/off
* Display output selection (for
From: Adrian Bunk <[EMAIL PROTECTED]>
Date: Mon, 19 Mar 2007 10:24:03 +0100
> This patch fixes two NULL dereferences spotted by the Coverity checker.
>
> For a better understanding, the "diff -uwp" output (that ignores the
> indentation changes) is:
I'll apply this, thanks Adrian.
-
To unsubscr
On Mon, 2007-03-19 at 11:38 -0700, Linus Torvalds wrote:
>
> On Mon, 19 Mar 2007, Eric W. Biederman wrote:
> >
> > True. You can use all of the call clobbered registers.
>
> Quite often, the biggest single win of inlining is not so much the code
> size (although if done right, that will be sma
On Mon, 19 Mar 2007, Andrew Morton wrote:
> Has it been proven that quicklists are superior to simply going direct to the
> page allocator for these pages?
Yes.
> Would it provide a superior solution if we were to a) stop zeroing out the
> pte's when doing a fullmm==1 teardown and b) go direct
From: Andrew Morton <[EMAIL PROTECTED]>
Date: Mon, 19 Mar 2007 16:53:29 -0700
> Would it provide a superior solution if we were to a) stop zeroing out the
> pte's when doing a fullmm==1 teardown and b) go direct to the page allocator
> for these pages?
While you could avoid zero'ing them out, you
On Mon, 19 Mar 2007 15:37:16 -0800 (PST)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> This patchset introduces an arch independent framework to handle lists
> of recently used page table pages to replace the existing (ab)use of the
> slab for that purpose.
>
> 1. Proven code from the IA64 arch.
This patch wire the signalfd system call to the x86_64 architecture.
Signed-off-by: Davide Libenzi
- Davide
Index: linux-2.6.21-rc3.quilt/include/asm-x86_64/unistd.h
===
--- linux-2.6.21-rc3.quilt.orig/include/asm-x86_64/unist
This patch wire the timerfd system call to the x86_64 architecture.
Signed-off-by: Davide Libenzi
- Davide
Index: linux-2.6.21-rc3.quilt/arch/x86_64/ia32/ia32entry.S
===
--- linux-2.6.21-rc3.quilt.orig/arch/x86_64/ia32/ia32ent
This patch implement the necessary compat code for the signalfd system call.
Signed-off-by: Davide Libenzi
- Davide
Index: linux-2.6.21-rc3.quilt/fs/compat.c
===
--- linux-2.6.21-rc3.quilt.orig/fs/compat.c 2007-03-19 16:03:
This is a very simple and light file descriptor, that can be used as
event wait/dispatch by userspace (both wait and dispatch) and by the
kernel (dispatch only). It can be used instead of pipe(2) in all cases
where those would simply be used to signal events. Their kernel overhead
is much lower tha
This patch wire the eventfd system call to the i386 architecture.
Signed-off-by: Davide Libenzi
- Davide
Index: linux-2.6.21-rc3.quilt/arch/i386/kernel/syscall_table.S
===
--- linux-2.6.21-rc3.quilt.orig/arch/i386/kernel/syscal
This patch wire the eventfd system call to the x86_64 architecture.
Signed-off-by: Davide Libenzi
- Davide
Index: linux-2.6.21-rc3.quilt/arch/x86_64/ia32/ia32entry.S
===
--- linux-2.6.21-rc3.quilt.orig/arch/x86_64/ia32/ia32ent
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