search for: readpages

...ux-2.6.29-rc7.org/fs/ocfs2/aops.c 2009-03-05 13:46:07.000000000 +0900 +++ linux-2.6.29-rc7/fs/ocfs2/aops.c 2009-03-05 13:50:59.000000000 +0900 @@ -1953,15 +1953,16 @@ static int ocfs2_write_end(struct file * } const struct address_space_operations ocfs2_aops = { - .readpage = ocfs2_readpage, - .readpages = ocfs2_readpages, - .writepage = ocfs2_writepage, - .write_begin = ocfs2_write_begin, - .write_end = ocfs2_write_end, - .bmap = ocfs2_bmap, - .sync_page = block_sync_page, - .direct_IO = ocfs2_direct_IO, - .invalidatepage = ocfs2_invalidatepage, - .releasepage = ocfs2_releasepage, - .migratepage...

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 7/9] Guest page hinting: minor fault optimization. On of the challenges of hva is the cost for the state transitions. If the cost gets too big the whole concept of page state information is in question. Therefore it is very important to

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 7/9] Guest page hinting: minor fault optimization. On of the challenges of hva is the cost for the state transitions. If the cost gets too big the whole concept of page state information is in question. Therefore it is very important to

Hi, Got the following on Linux 2.5.37 trying to run apt-get update. MikaL Sep 21 23:10:05 devil kernel: Assertion failure in ext3_get_block() at inode.c:853: "handle != 0" Sep 21 23:10:05 devil kernel: kernel BUG at inode.c:853! Sep 21 23:10:05 devil kernel: invalid operand: 0000 Sep 21 23:10:05 devil kernel: CPU: 1 Sep 21 23:10:05 devil kernel: EIP:

...be cluster coherent. > - quotas > - cluster aware flock <---------------------------------------- > - Directory change notification (F_NOTIFY) > - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease) > - POSIX ACLs > - readpages / writepages (not user visible) If this is an ill-informed question, please enlighten me. I'm following this list for quite some time and have done some tests (quite some time ago) and noticed then that if you write from two machines to the same file at the same moment, the one that is finishe...

.../btrfs/extent_io.c b/fs/btrfs/extent_io.c index 01c21b6..5c8ab6c 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3549,6 +3549,11 @@ int extent_writepages(struct extent_io_tree *tree, return ret; } +struct pagelst { + struct page *page; + struct list_head lst; +}; + int extent_readpages(struct extent_io_tree *tree, struct address_space *mapping, struct list_head *pages, unsigned nr_pages, @@ -3557,19 +3562,51 @@ int extent_readpages(struct extent_io_tree *tree, struct bio *bio = NULL; unsigned page_idx; unsigned long bio_flags = 0; + LIST_HEAD(page_pool); + s...

[PATCH V3 6/8] Cleancache: btrfs hooks for cleancache Filesystems must explicitly enable cleancache by calling cleancache_init_fs anytime a instance of the filesystem is mounted and must save the returned poolid. Btrfs uses its own readpage which must be hooked, but all other cleancache hooks are in the VFS layer including the matching cleancache_flush_fs hook which must be called on unmount.

Hi, We have file readahead to do asyn file read, but has no metadata readahead. For a list of files, their metadata is stored in fragmented disk space and metadata read is a sync operation, which impacts the efficiency of readahead much. The patches try to add meatadata readahead for btrfs. In btrfs, metadata is stored in btree_inode. Ideally, if we could hook the inode to a fd so we could use

This implementation of a virtio balloon driver uses the page cache to "store" pages that have been released to the host. The communication (outside of target counts) is one way--the guest notifies the host when it adds a page to the page cache, allowing the host to madvise(2) with MADV_DONTNEED. Reclaim in the guest is therefore automatic and implicit (via the regular page reclaim).

This implementation of a virtio balloon driver uses the page cache to "store" pages that have been released to the host. The communication (outside of target counts) is one way--the guest notifies the host when it adds a page to the page cache, allowing the host to madvise(2) with MADV_DONTNEED. Reclaim in the guest is therefore automatic and implicit (via the regular page reclaim).

...ng1/fs/Kconfig linux-2.6.16-rc4.ocfs2-staging2/fs/Kconfig --- linux-2.6.16-rc4.ocfs2-staging1/fs/Kconfig 2006-02-21 11:44:53.000000000 -0500 +++ linux-2.6.16-rc4.ocfs2-staging2/fs/Kconfig 2006-02-21 11:44:53.000000000 -0500 @@ -356,18 +356,6 @@ config OCFS2_FS - POSIX ACLs - readpages / writepages (not user visible) -config OCFS2_FS_O2CB - tristate "O2CB Kernelspace Clustering" - depends on OCFS2_FS - default y - help - OCFS2 includes a simple kernelspace clustering package that requires - a very small userspace complement to configure it. However, it is - not...

I'm writing a stackable file system and one of it's features is that it can combine many sparse files into a single view. On ext2/3 I was using bmap to give me the information needed, so for instance, if I created a big sparse file and tacked on some information at the end on ext2/3 I'd get something like blade12:~# ~/a.out abc File: abc Size: 30002 Blocks: 8 Blocksize: 4096 0

pagecache for pages above lower limit but that is a separate question about driver design, I would like to make sure I understand the high level design first. > > > > Note that users could not care less about how a driver > > is implemented internally. > > > > Is there some workload where you see VM working better with > > this than regular balloon? Any

pagecache for pages above lower limit but that is a separate question about driver design, I would like to make sure I understand the high level design first. > > > > Note that users could not care less about how a driver > > is implemented internally. > > > > Is there some workload where you see VM working better with > > this than regular balloon? Any

Oggz 1.0.0 Release ------------------ Oggz comprises liboggz and the tool oggz, which provides commands to inspect, edit and validate Ogg files. The oggz-chop tool can also be used to serve time ranges of Ogg media over HTTP by any web server that supports CGI. liboggz is a C library for reading and writing Ogg files and streams. It offers various features over the reference libogg, including

...fs2_dlm: Call node eviction callbacks from heartbeat handler ocfs2: Remove fs dependency on ocfs2_heartbeat module ocfs2: Remove mount/unmount votes ocfs2: Add data downconvert worker to inode lock ocfs2: Remove data locks ocfs2: Rename ocfs2_meta_[un]lock ocfs2: Readpages support ocfs2: Documentation update ocfs2: Add missing permission checks ocfs2: Support commit= mount option ocfs2: add flock lock type ocfs2: cluster aware flock() ocfs2: bump version number ocfs2: document access rules for blocked_lock_list ocfs2: c...

.... Signed-off-by: Shirish Pargaonkar <shirishpargaonkar at gmail.com> commit b6eb2f2f9f5ce0c64c57e2f59ef2ce80932decca Author: Jeff Layton <jlayton at samba.org> Date: Wed Oct 19 14:25:31 2011 -0400 manpage: document new rsize= behavior With the addition of async readpages in 3.2 kernels, the behavior of the rsize= option has changed. Signed-off-by: Jeff Layton <jlayton at samba.org> commit fa488d9fd2a0d722cfcccea6c84599366b58b0de Author: Jeff Layton <jlayton at samba.org> Date: Sat Nov 12 09:58:02 2011 -0500 cifs.upcall: silence unus...

While testing raid-auto-repair patches I''m going to send out later, I just found the very last bug in my current scrub patch series: Changelog v4->v5: - fixed a deadlock when fixup is taking longer while scrub is about to end Original message follows: ------------------------ This patch set introduces two new features for scrub. They share the backref iteration code which is the

Hi, The following series of patches implements in btrfs an ioctl to do out-of-band deduplication of file extents. To be clear, this means that the file system is mounted and running, but the dedupe is not done during file writes, but after the fact when some userspace software initiates a dedupe. The primary patch is loosely based off of one sent by Josef Bacik back in January, 2011.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.