On Thu, 26 Apr 2007 17:57:40 -0400
Lee Schermerhorn <[EMAIL PROTECTED]> wrote:
> On Thu, 2007-04-26 at 18:34 +0900, KAMEZAWA Hiroyuki wrote:
> > Changelog from V1 -> V2
> > - sysctl name is changed to be relaxed_zone_order
> > - NORMAL->NORMAL->->DM
On Thu, 26 Apr 2007 18:25:10 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Fri, 27 Apr 2007, KAMEZAWA Hiroyuki wrote:
>
> > > DMA memory.
> > >
> > It seems a bit complicated. If we do so, following can occur,
> >
> > Node
Hi, this is version 4. including Lee Schermerhon's good rework.
and automatic configuration at boot time.
(This patch is reworked from V2, so skip V3 changelog.)
ChangeLog V2 -> V4
- automatic configuration is added.
- automatic configuration is now default.
- relaxed_zone_order is renamed to be
ing order(new style, ZONE order)
Node(0)'s NORMAL -> Node(1)'s NORMAL -> Node(0)'s DMA.
means put more priority on zone_type.
And you can specify this option as boot param.
Because autoconfig function does nothing. Default is "Node" order.
Tested on ia64 2-Node NU
Node (A)'s ZONE_DMA/DMA32 occupies 60% of Node(A)'s memory.
otherwise, ZONE_ORDER_ZONE is selected.
Note: a user can specifiy this ordering from boot option.
Signed-Off-By: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
mm/page_alloc.c | 44 +
On Thu, 1 Mar 2007 16:09:15 -0800
Andrew Morton <[EMAIL PROTECTED]> wrote:
> On Thu, 1 Mar 2007 10:12:50 +
> [EMAIL PROTECTED] (Mel Gorman) wrote:
>
> > Any opinion on merging these patches into -mm
> > for wider testing?
>
> I'm a little reluctant to make changes to -mm's core mm unless tho
On Thu, 1 Mar 2007 21:11:58 -0800 (PST)
Linus Torvalds <[EMAIL PROTECTED]> wrote:
> The whole DRAM power story is a bedtime story for gullible children. Don't
> fall for it. It's not realistic. The hardware support for it DOES NOT
> EXIST today, and probably won't for several years. And the real
zones are overkill
> there and anti-fragmentation on its own is good enough). Pages hot-added
> to ZONE_MOVABLE will always be reclaimable or migratable in the case of
> mlock(). Kamezawa Hiroyuki has indicated that his hot-remove patches also
> do something like ZONE_MOVABLE. I would hope t
On Tue, 6 Mar 2007 03:09:27 -0800
Andrew Morton <[EMAIL PROTECTED]> wrote:
> > ==
> >
> > Is "mask" always valid pointer ?
>
> I can only find two `struct irq_chip's in arch/ia64 and they both have a
> .mask. And a .unmask. So perhaps that is a misreading of what oopsed.
>
> There are no cha
This patch fixes boot failure because irq_desc->mask() is NULL.
- Added mask/unmask functions to ia64's irq desc function table.
But I'm not sure this fix is correct or not. please review.
- rename hw_interrupt_type to irq_chip. hw_interrupt_type is old name.
Signed-Off-By: KAME
On Tue, 6 Mar 2007 22:57:10 -0800
Andrew Morton <[EMAIL PROTECTED]> wrote:
> On Wed, 7 Mar 2007 15:23:17 +0900 KAMEZAWA Hiroyuki <[EMAIL PROTECTED]> wrote:
>
> > This patch fixes boot failure because irq_desc->mask() is NULL.
> >
> > - Added mask/unmas
On 2015/09/22 15:23, Ingo Molnar wrote:
> So when memory hotplug removes a piece of physical memory from pagetable
> mappings, it also frees the underlying PGD entry.
>
> This complicates PGD management, so don't do this. We can keep the
> PGD mapped and the PUD table all clear - it's only a singl
On 2015/10/09 19:36, Xishi Qiu wrote:
On 2015/10/9 17:24, Kamezawa Hiroyuki wrote:
On 2015/10/09 15:46, Xishi Qiu wrote:
On 2015/10/9 22:56, Taku Izumi wrote:
Xeon E7 v3 based systems supports Address Range Mirroring
and UEFI BIOS complied with UEFI spec 2.5 can notify which
ranges are
On 2015/10/22 3:17, Luck, Tony wrote:
+ if (reliable_kernelcore) {
+ for_each_memblock(memory, r) {
+ if (memblock_is_mirror(r))
+ continue;
Should we have a safety check here that there is some mirrored memory? If you
giv
Hi, this patch set adds following functions
- page_inode(page) ... returns inode from page, (page->mapping->host)
- page_mapping_cache(page) ... returns addrees_space from page
- page_mapping_anon(page) ... return anon_vma from page
- page_is_pagecache(page) ... returns 1 if the page is page c
ine function page_mapping() refers this.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
include/linux/fs.h |1 +
include/linux/mm.h | 20 +---
include/linux/mm_types.h |2 +-
include/linux/page-cache
Changes page->mapping handling in /mm directory.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
mm/filemap.c| 24 +---
mm/memory.c |6 --
mm/migrate.c| 17 ++---
mm/page-writeback.c |4 ++--
Changes page->mapping hanlding of generic fs routine and kexec.
(other than mm layer..)
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/buffer.c| 43 ++-
fs/libfs.c |2 +-
fs/mpage.c | 13 +++--
kerne
use page_inode() in AFFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/affs/file.c|4 ++--
fs/affs/symlink.c |2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/affs/
Use page->mapping interface in AFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/afs/file.c |7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/afs/file.c
===
--- te
Change page->mapping handling in CIFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/cifs/file.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ci
Change page->mapping handling in CODA
Singed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/coda/symlink.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/coda/symlink.c
===
patches for handling page->mapping in CRAMFS.
Signed-off-by : KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/cramfs/inode.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/cramf
Change page->mapping handling in ecryptfs
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ecryptfs/crypto.c |9 -
fs/ecryptfs/mmap.c | 14 +++---
2 files changed, 11 insertions(+), 12 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ecryptfs
Change page->mapping handling in EFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
Index: test-2.6.23-rc4-mm1/fs/efs/symlink.c
===
--- test-2.6.23-rc4-mm1.orig/fs/efs/symlink.c
+++ test-2.6.23-rc4-mm1/fs/efs/
Change page->mapping handling in ext2
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ext2/dir.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/e
Change page->mapping handling in EXT3
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ext3/inode.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ext
Changes page->mapping handling in EXT4
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ext4/inode.c | 10 +-
fs/ext4/writeback.c | 24
2 files changed, 17 insertions(+), 17 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ext
Changes page->mapping handling in freevxfs.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/freevxfs/vxfs_immed.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/freevxfs/vxf
Changes page->mapping handling in FUSE
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/fuse/file.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/fuse/file.c
===
Changes page->mapping handling in GFS2
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/gfs2/log.c |4 ++--
fs/gfs2/lops.c|2 +-
fs/gfs2/meta_io.c |2 +-
fs/gfs2/ops_address.c | 16
4 files changed, 12 insertions(+), 12
Changes page->mapping handling in HFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/hfs/inode.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/hfs/inode.c
===
--- te
Changes page->mapping handling in HPFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/hpfs/namei.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/hpfs/namei.c
===
Changes page->mapping handling in HFSPLUS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/hfsplus/inode.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/hfsplu
Changes page->mapping handling in ISOFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/isofs/rock.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/isofs/rock.c
===
Changes page->mapping handling in JBD
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/jbd/journal.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/jbd/journal.c
===
Changes page->mapping handling in JFFS2
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/jffs2/file.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/jffs2/file.c
===
Changes page->mapping handling in MINIXFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/minix/dir.c |9 +
1 file changed, 5 insertions(+), 4 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/mi
Changes page->mapping handling in NCPFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ncpfs/symlink.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/ncpfs/
Changes page->mapping handling in JFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/jfs/jfs_metapage.c |8
1 file changed, 4 insertions(+), 4 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/jfs/jfs_m
Changes page->mapping handling in NFS
Singed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/nfs/file.c | 11 ++-
fs/nfs/internal.h |2 +-
fs/nfs/pagelist.c |2 +-
fs/nfs/read.c |4 ++--
fs/nfs/write.c| 35 ++-
Changes page->mapping handling in NTFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ntfs/aops.c | 14 +++---
fs/ntfs/compress.c |2 +-
fs/ntfs/file.c |6 +++---
3 files changed, 11 insertions(+), 11 deletions(-)
Index: test-2.6.23-rc4-mm
Changes page->mapping handling in OCFS2
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ocfs2/aops.c |8
fs/ocfs2/mmap.c |3 ++-
2 files changed, 6 insertions(+), 5 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ocf
of ‘page_inode’
discards qualifiers from pointer target type
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/reiser4/as_ops.c | 34 ---
fs/reiser4/entd.c|6 ++---
fs/reiser4/jnode.c
Changes page->mapping handling in ROMFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/romfs/inode.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: test-2.6.23-rc4-mm1/fs/romfs/inode.c
===
Changes page->mapping handlingi in SYSVFS.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/sysv/dir.c |9 +
1 file changed, 5 insertions(+), 4 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/s
Changes page->mapping handling in UDFFS
Signed-off-by: KAMEZAWA hiroyuki <[EMAIL PROTECTED]>
---
fs/udf/file.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/udf/file.c
===
Changes page->mapping handling in UFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/ufs/dir.c | 10 +-
fs/ufs/util.c |2 +-
2 files changed, 6 insertions(+), 6 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/
Changes page->mapping handling in UNIONFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/unionfs/mmap.c |8
1 file changed, 4 insertions(+), 4 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/union
Change page->mapping handling in XFS
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/xfs/linux-2.6/xfs_aops.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/xfs/linux-2.6/x
On Mon, 10 Sep 2007 11:19:51 +0100
David Woodhouse <[EMAIL PROTECTED]> wrote:
> On Mon, 2007-09-10 at 19:16 +0900, KAMEZAWA Hiroyuki wrote:
> > Changes page->mapping handling in JFFS2
> >
> > Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
>
>
On Tue, 11 Sep 2007 22:31:27 +0100 (IST)
Mel Gorman <[EMAIL PROTECTED]> wrote:
> Using two zonelists per node requires very frequent use of zone_idx(). This
> is costly as it involves a lookup of another structure and a substraction
> operation. As struct zone is always word aligned and normally c
On Thu, 13 Sep 2007 22:19:20 +0200
Richard Knutsson <[EMAIL PROTECTED]> wrote:
> > +static inline int page_is_pagecache(struct page *page)
> >
> Why return it as an 'int' instead of 'bool'?
> > +{
> > + if (!page->mapping || (page->mapping & PAGE_MAPPING_ANON))
> > + return 0;
> > +
On Wed, 26 Sep 2007 01:30:02 +0530
Kamalesh Babulal <[EMAIL PROTECTED]> wrote:
> Hi Andrew,
>
> The 2.6.23-rc8-mm1 kernel linking fails on the powerpc (P5+) box
>
> CC init/version.o
> LD init/built-in.o
> LD .tmp_vmlinux1
> drivers/built-in.o: In function `memory_block_acti
On Wed, 26 Sep 2007 10:32:05 +0900
KAMEZAWA Hiroyuki <[EMAIL PROTECTED]> wrote:
> Maybe my patch is the problem. could you give me your .config ?
>
Ah, memory hot remove is selectable even if the arch doesn't support
itsorry.
ok, this is fix.
Thanks,
-Kame
==
MEMORY_HOTREM
On Wed, 26 Sep 2007 20:31:02 +0100 (BST)
Hugh Dickins <[EMAIL PROTECTED]> wrote:
> Would that waste a little memory? I think not with SLUB,
> but perhaps with SLOB, which packs a little tighter.
>
maybe just depends on the amount of used anon_vma and page_mapping_info etc...
I don't think a syst
On Tue, 25 Sep 2007 16:42:17 -0700
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> +static noinline void vcompound_free(void *addr)
> +{
> + if (in_interrupt()) {
Should be (in_interrupt() || irqs_disabled()) ?
Regards,
-Kame
-
To unsubscribe from this list: send the line "unsubscribe linux-
cpu-hot-add should be fail if cpu is not set in cpu_possible_map.
If go ahead, the system will panic soon.
Especially, arch which requires additional_cpus= parameter should handle this.
Tested on ia64.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
kernel/cpu.c |8 +
On Fri, 28 Sep 2007 10:35:44 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Fri, 28 Sep 2007, KAMEZAWA Hiroyuki wrote:
>
> > On Tue, 25 Sep 2007 16:42:17 -0700
> > Christoph Lameter <[EMAIL PROTECTED]> wrote:
> >
> > > +s
On Mon, 17 Sep 2007 19:47:48 -0700
Andrew Morton <[EMAIL PROTECTED]> wrote:
> On Fri, 31 Aug 2007 19:14:15 +0900 KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
> wrote:
>
> > Makes ZONE_MOVABLE as configurable
> >
> > Based on "zone_ifdef_cleanup_by_renumberi
On Mon, 10 Sep 2007 22:40:49 +0530
Srivatsa Vaddagiri <[EMAIL PROTECTED]> wrote:
> + tg->cfs_rq = kzalloc(sizeof(cfs_rq) * num_possible_cpus(), GFP_KERNEL);
> + if (!tg->cfs_rq)
> + goto err;
> + tg->se = kzalloc(sizeof(se) * num_possible_cpus(), GFP_KERNEL);
> + if (!tg
me other
archs if there are requirements and testers.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
arch/i386/mm/init.c|5
arch/ia64/mm/init.c|3 +-
arch/powerpc/mm/mem.c | 45 -
arc
are requirements and testers.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
arch/i386/mm/init.c|5
arch/ia64/mm/init.c|3 +-
arch/powerpc/mm/mem.c | 45 -
arch/sh/mm/init.c
bool type.
- moved related functions to page-cache.h
- renamed some functions.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
include/linux/fs.h |6 +-
include/linux/mm.h | 40 ---
include/linux/page-cache.h | 118 +
Make use of page-cache.h functions in /mm layer.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
mm/filemap.c| 19 ++-
mm/memory.c |5 +++--
mm/migrate.c|8 ++--
mm/page-writeback.c |4 ++--
mm/rmap.c
Make use of page-cache.h in fs-generic layer.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
fs/buffer.c | 43 ++-
fs/fs-writeback.c |2 +-
fs/libfs.c|2 +-
fs/mpage.c| 13 +++--
4 files chang
On Tue, 18 Sep 2007 20:36:10 -0700
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> Make vunmap return the page array that was used at vmap. This is useful
> if one has no structures to track the page array but simply stores the
> virtual address somewhere. The disposition of the page array can be
>
On Wed, 19 Sep 2007 15:15:58 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Wed, 19 Sep 2007, KAMEZAWA Hiroyuki wrote:
>
> > Hmm, I don't like returning array which someone allocated in past and
> > forgot.
>
> But that is exactly the point. Th
On Thu, 20 Sep 2007 11:26:47 -0700 (PDT)
Christoph Lameter <[EMAIL PROTECTED]> wrote:
> On Wed, 19 Sep 2007, KAMEZAWA Hiroyuki wrote:
>
> > Any comments are welcome.
>
> I am still a bit confused as to what the benefit of this is.
>
Honestly, I have 3 purposes, 2 f
register cpu control if cpu is not in
possible_map.
Works as expected on ia64/cpu-hotplug-by-ACPI case.
Consideration:
handling this issue in cpu_up() is an another way.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
drivers/base/cpu.c | 11 +++
1 file changed, 11 inse
On Fri, 21 Sep 2007 13:48:28 +0200
Peter Zijlstra <[EMAIL PROTECTED]> wrote:
> > Followings are moved
> > * page_mapping() ... returns swapper_space or address_space a page
> > is on.
> > (from mm.h)
> > * page_index() ... returns position of a page in its
On Fri, 21 Sep 2007 18:02:47 +0100 (BST)
Hugh Dickins <[EMAIL PROTECTED]> wrote:
> > 3. I want to *try* page->mapping overriding... store memory resource
> > controller's
> >information in page->mapping. By this, memory controller doesn't enlarge
> > sizeof
> >struct page. (works well
Fixing 2 small issues pointed by Tony Luck.
* removing redundant BUG_ON in __ia64_sync_icache_dcache().
* check pte_present() first.
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
arch/ia64/mm/init.c|2 --
include/asm-ia64/pgtable.h |4 ++--
2 files chan
On Tue, 21 Aug 2007 14:12:02 -0700
"Luck, Tony" <[EMAIL PROTECTED]> wrote:
> > + if (pte_present(pteval) &&// swap out ?
> > + pte_exec(pteval) &&// flush only new executable page.
> > pte_user(pteval) &&// ignore kernel page
> > (!pte_present(*ptep) ||// do_no_page
ned-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
arch/ia64/mm/init.c|2 --
include/asm-ia64/pgtable.h | 17 +++--
2 files changed, 11 insertions(+), 8 deletions(-)
Index: linux-2.6.23-rc2-mm2/include/asm-ia64/
On Wed, 22 Aug 2007 10:08:09 +0800
Shaohua Li <[EMAIL PROTECTED]> wrote:
> commit dc386d4d1e98bb39fb967ee156cd456c802fc692 adds rcu_read_lock, but
> some routines in the lock range might sleep (like lock_buffer,
> aops->writepage), I saw a 'sleep in atomic' warning. It appears the
> patch has seve
On Wed, 22 Aug 2007 10:50:53 +0800
Shaohua Li <[EMAIL PROTECTED]> wrote:
> > At quick glance, above path has no writepage() ops.
> > just replace swap's radix tree entry.
> I missed swap has .migratepage and thought fallback_migrate_page is
> used, then I thought doing rcu lock in PageAnon case is
oding that, just do rcu_lock if the page is Anon.(this is enough.)
Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
---
mm/migrate.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
Index: linux-2.6.23-rc2-mm2/m
Thank you for documentaion. How about adding following topics ?
- Benefit and Purpose. When this function help a user.
- What is accounted as RSS.
- What is accounted as page-cache.
- What are not accoutned now.
- When a page is accounted (charged.)
- about mem_control_type
- When a user can remo
On 2015/04/02 10:36, Gu Zheng wrote:
Hi Kame, TJ,
On 04/01/2015 04:30 PM, Kamezawa Hiroyuki wrote:
On 2015/04/01 12:02, Tejun Heo wrote:
On Wed, Apr 01, 2015 at 11:55:11AM +0900, Kamezawa Hiroyuki wrote:
Now, hot-added cpus will have the lowest free cpu id.
Because of this, in most of
On 2015/03/30 18:49, Gu Zheng wrote:
Hi Kame-san,
On 03/27/2015 12:42 AM, Kamezawa Hiroyuki wrote:
On 2015/03/27 0:18, Tejun Heo wrote:
Hello,
On Thu, Mar 26, 2015 at 01:04:00PM +0800, Gu Zheng wrote:
wq generates the numa affinity (pool->node) for all the possible cpu's
per cpu w
On 2015/04/01 0:28, Tejun Heo wrote:
Hello, Kamezawa.
On Tue, Mar 31, 2015 at 03:09:05PM +0900, Kamezawa Hiroyuki wrote:
But this may be considered as API change for most hot-add users.
Hmm... Why would it be? What can that possibly break?
Now, hot-added cpus will have the lowest free
On 2015/03/30 18:58, Gu Zheng wrote:
> Hi Kame-san,
>
> On 03/27/2015 12:31 AM, Kamezawa Hiroyuki wrote:
>
>> On 2015/03/26 13:55, Gu Zheng wrote:
>>> Hi Kame-san,
>>> On 03/26/2015 11:19 AM, Kamezawa Hiroyuki wrote:
>>>
>>>> On 2015/03
On 2015/04/01 12:02, Tejun Heo wrote:
On Wed, Apr 01, 2015 at 11:55:11AM +0900, Kamezawa Hiroyuki wrote:
Now, hot-added cpus will have the lowest free cpu id.
Because of this, in most of systems which has only cpu-hot-add, cpu-ids are
always
contiguous even after cpu hot add.
In enterprise
On 2015/04/25 5:01, Andrew Morton wrote:
On Fri, 24 Apr 2015 17:58:33 +0800 Gu Zheng wrote:
Since the change to the cpu <--> mapping (map the cpu to the physical
node for all possible at the boot), the node of cpu may be not present,
so we use the best near online node if the node is not prese
(2012/07/11 22:24), Wanpeng Li wrote:
> From: Wanpeng Li
>
> Since hierachical_memory_limit shows "of bytes of memory limit with
> regard to hierarchy under which the memory cgroup is", the count should
> calculate max hierarchy limit when use_hierarchy in order to show hierarchy
> subtree limit.
(2012/07/11 18:32), Sha Zhengju wrote:
On 07/10/2012 05:02 AM, Greg Thelen wrote:
On Thu, Jun 28 2012, Sha Zhengju wrote:
From: Sha Zhengju
This patch adds memcg routines to count dirty pages, which allows memory
controller
to maintain an accurate view of the amount of its dirty memory and c
gned-off-by: Johannes Weiner
> Acked-by: Michal Hocko
Acked-by: KAMEZAWA Hiroyuki
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From: Andrew Morton
Subject: memory-hotplug-fix-kswapd-looping-forever-problem-fix
simplify nr_zone_isolate_freepages(), rework zone_watermark_ok_safe() comment,
simplify set_pageblock_isolate() and restore_pageblock_isolate().
Cc: Aaditya Kumar
Cc: KAMEZAWA Hiroyuki
Cc: Mel Gorman
Cc
(2012/07/19 18:29), Michal Hocko wrote:
On Wed 18-07-12 19:08:54, Wanpeng Li wrote:
use exist interface mem_cgroup_css instead of &mem->css.
This interface has been added to enable mem->css outside of
mm/memcontrol.c (where we define struct mem_cgroup). There is one user
left (hwpoison_filter_
(2012/07/19 18:41), Aneesh Kumar K.V wrote:
Li Zefan writes:
on 2012/7/19 10:55, Aneesh Kumar K.V wrote:
Andrew Morton writes:
On Wed, 18 Jul 2012 11:04:09 +0530
"Aneesh Kumar K.V" wrote:
From: "Aneesh Kumar K.V"
Since we cannot fail in hugetlb_cgroup_move_parent, we don't really
nee
6,6 +1027,7 @@ keep_lumpy:
list_splice(&ret_pages, page_list);
count_vm_events(PGACTIVATE, pgactivate);
+ mem_cgroup_uncharge_end();
I guess placing mem_cgroup_uncharge_end() just after the loop may be better
looking.
Anyway,
Acked-by: KAMEZAWA Hiroyuki
But please show
On 2015/06/11 5:40, Luck, Tony wrote:
I guess, mirrored memory should be allocated if !__GFP_HIGHMEM or !__GFP_MOVABLE
HIGHMEM shouldn't matter - partial memory mirror only makes any sense on X86_64
systems ... 32-bit kernels
don't even boot on systems with 64GB, and the minimum rational confi
On 2015/06/16 2:20, Luck, Tony wrote:
On Mon, Jun 15, 2015 at 05:47:27PM +0900, Kamezawa Hiroyuki wrote:
So, there are 3 ideas.
(1) kernel only from MIRROR / user only from MOVABLE (Tony)
(2) kernel only from MIRROR / user from MOVABLE + MIRROR(ASAP) (AKPM
suggested)
This makes use
On 2015/06/04 21:58, Xishi Qiu wrote:
This patch introduces a new MIGRATE_TYPES called "MIGRATE_MIRROR", it is used
to storage the mirrored pages list.
When cat /proc/pagetypeinfo, you can see the count of free mirrored blocks.
I guess you need to add Mel to CC.
e.g.
euler-linux:~ # cat /pro
On 2015/06/04 21:56, Xishi Qiu wrote:
This patch introduces a new config called "CONFIG_ACPI_MIRROR_MEMORY", it is
used to on/off the feature.
Signed-off-by: Xishi Qiu
---
mm/Kconfig | 8
1 file changed, 8 insertions(+)
diff --git a/mm/Kconfig b/mm/Kconfig
index 390214d..4f2a726 10
On 2015/06/04 21:57, Xishi Qiu wrote:
This patch introduces a new struct called "mirror_info", it is used to storage
the mirror address range which reported by EFI or ACPI.
TBD: call add_mirror_info() to fill it.
Signed-off-by: Xishi Qiu
---
arch/x86/mm/numa.c | 3 +++
include/linux/mm
On 2015/06/04 22:02, Xishi Qiu wrote:
This patch introduces a new gfp flag called "__GFP_MIRROR", it is used to
allocate mirrored pages through buddy system.
Signed-off-by: Xishi Qiu
In Tony's original proposal, the motivation was to mirror all kernel memory.
Is the purpose of this patch mak
On 2015/06/04 22:02, Xishi Qiu wrote:
Add a new interface in path /proc/sys/vm/mirrorable. When set to 1, it means
we should allocate mirrored memory for both user and kernel processes.
Signed-off-by: Xishi Qiu
I can't see why do we need this switch. If this is set, all GFP_HIGHUSER will
use
On 2015/06/04 22:04, Xishi Qiu wrote:
Add the buddy system interface for address range mirroring feature.
Allocate mirrored pages in MIGRATE_MIRROR list. If there is no mirrored pages
left, use other types pages.
Signed-off-by: Xishi Qiu
---
mm/page_alloc.c | 40 ++
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