search for: unlock_pages

Hello. That's what I've got from ld: /usr/lib/libxenguest.a(xg_private.o): In function `unlock_pages': (.text+0x490): multiple definition of `unlock_pages' /usr/lib/libxenctrl.a(xc_private.o):(.text+0x6a0): first defined here /usr/lib/libxenguest.a(xg_private.o): In function `lock_pages': (.text+0x4d0): multiple definition of `lock_pages' /usr/lib/libxenctrl.a(xc_private.o):(.text+...

Currently ocfs2_start_trans/ocfs2_commit_trans are in lock_page/unlock_page. This may cause dead lock. Here is the situation: write -> lock_page -> ocfs2_start_trans -> ocfs2_commit_trans -> unlock_page ocfs2_start_trans/ocfs2_commit_trans calls jbd2_journal_start/jbd2_journal_stop which may also call lock_page. So if the page operated is unfortunately the same with the page to be

fix lock_pages()/unlock_pages(). The resion is sometimes wrongly calculated. It results in unexpected hypercall failure. -- yamahata _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

On Tue, Apr 23, 2019 at 04:45:28PM -0700, Nadav Amit wrote: > Introduce interfaces for ballooning enqueueing and dequeueing of a list > of pages. These interfaces reduce the overhead of storing and restoring > IRQs by batching the operations. In addition they do not panic if the > list of pages is empty. > > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Cc:

Introduce interfaces for ballooning enqueueing and dequeueing of a list of pages. These interfaces reduce the overhead of storing and restoring IRQs by batching the operations. In addition they do not panic if the list of pages is empty. Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason Wang <jasowang at redhat.com> Cc: linux-mm at kvack.org Cc: virtualization at

Introduce interfaces for ballooning enqueueing and dequeueing of a list of pages. These interfaces reduce the overhead of storing and restoring IRQs by batching the operations. In addition they do not panic if the list of pages is empty. Cc: Jason Wang <jasowang at redhat.com> Cc: linux-mm at kvack.org Cc: virtualization at lists.linux-foundation.org Acked-by: Michael S. Tsirkin <mst at

On Wed, Feb 06, 2019 at 03:57:03PM -0800, Nadav Amit wrote: > Introduce interfaces for ballooning enqueueing and dequeueing of a list > of pages. These interfaces reduce the overhead of storing and restoring > IRQs by batching the operations. In addition they do not panic if the > list of pages is empty. > > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Cc:

On Thu, Mar 28, 2019 at 01:07:15AM +0000, Nadav Amit wrote: > Introduce interfaces for ballooning enqueueing and dequeueing of a list > of pages. These interfaces reduce the overhead of storing and restoring > IRQs by batching the operations. In addition they do not panic if the > list of pages is empty. > > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Cc:

Hi all, this series removes most users of the write_one_page API. These helpers internally call ->writepage which we are gradually removing from the kernel. Changes since v2: - more minix error handling fixes Changes since v1: - drop the btrfs changes (queue up in the btrfs tree) - drop the finaly move to jfs (can't be done without the btrfs patches) - fix the existing minix code to

...le definition of `lock_pages'' /usr/lib/gcc/x86_64-linux-gnu/4.2.3/../../../../lib/libxenguest.a(xg_private.o):/home/sthibault/xen-unstable-stubdom.hg/tools/libxc/xg_private.c:15: first defined here /usr/lib/gcc/x86_64-linux-gnu/4.2.3/../../../../lib/libxenctrl.a(xc_private.o): In function `unlock_pages'': /home/sthibault/xen-unstable-stubdom.hg/tools/libxc/xc_private.c:142: multiple definition of `unlock_pages'' /usr/lib/gcc/x86_64-linux-gnu/4.2.3/../../../../lib/libxenguest.a(xg_private.o):/home/sthibault/xen-unstable-stubdom.hg/tools/libxc/xg_private.c:24: first defined here Si...

On Mon, Dec 28, 2015 at 08:35:13AM +0900, Minchan Kim wrote: > In balloon_page_dequeue, pages_lock should cover the loop > (ie, list_for_each_entry_safe). Otherwise, the cursor page could > be isolated by compaction and then list_del by isolation could > poison the page->lru.{prev,next} so the loop finally could > access wrong address like this. This patch fixes the bug. >

On Mon, Dec 28, 2015 at 08:35:13AM +0900, Minchan Kim wrote: > In balloon_page_dequeue, pages_lock should cover the loop > (ie, list_for_each_entry_safe). Otherwise, the cursor page could > be isolated by compaction and then list_del by isolation could > poison the page->lru.{prev,next} so the loop finally could > access wrong address like this. This patch fixes the bug. >

From: Gioh Kim <gurugio at hanmail.net> Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for

From: Gioh Kim <gurugio at hanmail.net> Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for

Hi Minchan, [auto build test WARNING on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 coccinelle warnings: (new ones prefixed by >>) >>

Hi Minchan, [auto build test WARNING on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 coccinelle warnings: (new ones prefixed by >>) >>

On Tue, Jul 7, 2015 at 7:36 AM, Gioh Kim <gioh.kim at lge.com> wrote: > From: Gioh Kim <gurugio at hanmail.net> > > Add framework to register callback functions and check page mobility. > There are some modes for page isolation so that isolate interface > has arguments of page address and isolation mode while putback > interface has only page address as argument. >

On Tue, Jul 7, 2015 at 7:36 AM, Gioh Kim <gioh.kim at lge.com> wrote: > From: Gioh Kim <gurugio at hanmail.net> > > Add framework to register callback functions and check page mobility. > There are some modes for page isolation so that isolate interface > has arguments of page address and isolation mode while putback > interface has only page address as argument. >

On Fri, Jan 08, 2016 at 02:56:14PM -0500, Rafael Aquini wrote: > On Fri, Jan 01, 2016 at 11:36:13AM +0200, Michael S. Tsirkin wrote: > > On Mon, Dec 28, 2015 at 08:35:13AM +0900, Minchan Kim wrote: > > > In balloon_page_dequeue, pages_lock should cover the loop > > > (ie, list_for_each_entry_safe). Otherwise, the cursor page could > > > be isolated by compaction

On Fri, Jan 08, 2016 at 02:56:14PM -0500, Rafael Aquini wrote: > On Fri, Jan 01, 2016 at 11:36:13AM +0200, Michael S. Tsirkin wrote: > > On Mon, Dec 28, 2015 at 08:35:13AM +0900, Minchan Kim wrote: > > > In balloon_page_dequeue, pages_lock should cover the loop > > > (ie, list_for_each_entry_safe). Otherwise, the cursor page could > > > be isolated by compaction