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[PATCH] Function btree_get_extent: Incorrect if-else if statement
The btree_get_extent function (in file disk-io.c) calls the add_extent_mapping (in file extent_map.c). The add_extent_mapping function can return two values: 0 or -EEXIST. After the call, it is used an if-else if statement. If the result is ...
Message posted on the August 9th, 2010 - 6:50 AM ET
[PATCH 00/33] AIO cleanups/performance improvements
This is a respin of the AIO patches that have been in Andrew's tree, with all the various fixes squashed. Two differences from the code that was in Andrew's tree: * The "block: Prep work for batch completion" patch is new - previously, ...
Message posted on the March 21st, 2013 - 11:40 AM ET
[PATCH RESEND v1 00/16] vfs: hot data tracking
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> HI, guys, This patchset has been done scalability or performance tests by fs_mark, ffsb and compilebench. I have done the perf testing on Linux 3.7.0-rc8+ with Intel(R) Core(TM) i7-3770 CPU @ ...
Message posted on the December 20th, 2012 - 9:50 AM ET
getdents - ext4 vs btrfs performance
Hi All, Long story short: We've found that operations on a directory structure holding many dirs takes ages on ext4. The Question: Why there's that huge difference in ext4 and btrfs? See below test results for real values. Background: I had to ...
Message posted on the February 29th, 2012 - 8:40 AM ET
[GIT PULL] Btrfs updates
Hi everyone, The for-linus branch of the btrfs unstable tree: git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git for-linus Has our current queue of fixes. Josef's is the biggest pile, mostly in the allocator. Josef and I ...
Message posted on the June 12th, 2011 - 8:00 AM ET
[PATCH 1/6] fs: add hole punching to fallocate
Hole punching has already been implemented by XFS and OCFS2, and has the potential to be implemented on both BTRFS and EXT4 so we need a generic way to get to this feature. The simplest way in my mind is to add FALLOC_FL_PUNCH_HOLE to fallocate() ...
Message posted on the November 8th, 2010 - 3:50 PM ET
[PATCH V2 0/3] improve the performance of some memory copy functions
Changes from V1 to V2: - change the version of GPL from version 2.1 to version 2 When I looked into the performance problem of the btrfs, I found some memory copy functions of the kernel(such as: x86_64's memmove)is very inefficient, but the glibc ...
Message posted on the September 2nd, 2010 - 1:50 AM ET
Re: PATCH 3/6 - direct-io: do not merge logically non-contiguous requests
On Fri, May 21, 2010 at 15:37:45AM -0400, Josef Bacik wrote: On Fri, May 21, 2010 at 11:21:11AM -0400, Christoph Hellwig wrote: On Wed, May 19, 2010 at 04:24:51PM -0400, Josef Bacik wrote: > Btrfs cannot handle having logically non-contiguous ...
Message posted on the August 6th, 2010 - 7:00 AM ET
[PATCH 2/2] ntfs: use add_to_page_cache_lru
While I discuss exportable add_to_page_cache_lru, http://marc.info/?l=linux-mm&m7047788612445&w=2 I found that http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg04472.html. Let's change to use it in ntfs. == CUT_HERE = Quote from ...
Message posted on the April 5th, 2010 - 11:50 AM ET
[PATCH v2] btrfs: Remove all sysfs entries
Seems that currently none of the sysfs are created any more, so just remove sysfs support entirely. Fixes compiling warnings in 3.0rc3 Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com> Oops, forgot to amend the compiling fix diff ...
Message posted on the June 15th, 2011 - 4:50 AM ET
Bug#691568: btrfs: can't have many hardlinks to a given inode in a given directory
Source: linux Version: 3.2.32-1 Severity: wishlist Justification: difficult Tags: upstream patch moreinfo Hi, As described at [1], btrfs limits (to less than 200 or so) on the number of hard links to a single inode in a given directory. This is ...
Message posted on the October 27th, 2012 - 5:50 AM ET
[PATCH] fs: encode_fh: return FILEID_INVALID if invalid fid_type
This patch is a follow up on below patch: [PATCH] exportfs: add FILEID_INVALID to indicate invalid fid_type https://patchwork.kernel.org/patch/1385131/ Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Vivek Trivedi ...
Message posted on the August 31st, 2012 - 12:50 PM ET
[PATCH 00/46] rcu-walk and dcache scaling
git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin.git vfs-scale-working Here is an new set of vfs patches for review, not that there was much interest last time they were posted. It is structured like: * preparation patches * ...
Message posted on the November 27th, 2010 - 5:40 AM ET
[SRM] Dpkg update in stable to fix bug with btrfs?
Hello, after someone got bitten by #575891 while running a lenny chroot on a btrfs filesystem, Julien Cristau suggested me to try to fix this bug in stable. Would you accept a stable upload with the attached patch ? It's a relatively simple ...
Message posted on the October 20th, 2010 - 5:20 PM ET