similar to: [PATCH v5 0/3] Btrfs: add IO error device stats

The goal is to detect when drives start to get an increased error rate, when drives should be replaced soon. Therefore statistic counters are added that count IO errors (read, write and flush). Additionally, the software detected errors like checksum errors and corrupted blocks are counted. An ioctl interface is added to get the device statistic counters. A second ioctl is added to atomically get

Fix that when scrub tries to repair an I/O or checksum error and one of the devices containing the mirror is missing, it crashes in bio_add_page because the bdev is a NULL pointer for missing devices. Reported-by: Marco L. Crociani <marco.crociani@gmail.com> Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> --- fs/btrfs/scrub.c | 7 +++++++ 1 file changed, 7 insertions(+)

The biggest one is a fix for fstrim, and there''s a fix for on-disk free space cache. Others are small fixes and cleanups. The last three have been sent weeks ago. The patchset is also available in this repo: git://repo.or.cz/linux-btrfs-devel.git for-chris Note there''s a small confict with Al Viro''s vfs changes. Li Zefan (11): Btrfs: add pinned extents to

Hi all, While developing compile-time instrumentation for ThreadSanitizer (http://code.google.com/p/data-race-test) I need to generate SEME regions without loop and call instructions (I'll call them superblocks hereafter, although some researchers do allow loops in their definition of superblocks). This is necessary to get the largest piece of IR in which the memory operations can be

Three kind of structures need to be freed on close: * All struct btrfs_device managed by fs_devices * The name field for each struct btrfs_device * The above items for seed_devices Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com> --- volumes.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/volumes.c b/volumes.c index

I have been looking into this small test case (Part A) where loop vectorization is disabled due to possible store-load forwarding conflict (Part B). As you can see, due to the presence of dependence distance 2 the loop is vectorizable only for a width of 2. However, the presence of dependence distance 15 (due to y[j-15]) results in store-load forwarding issue as store packet of y[16:17] (iteration

Hi all, I was intending on trying out gjournal on a new disk i've added in my desktop. I had a look to see what the most recent patch provided by Pawel and found http://people.freebsd.org/~pjd/patches/gjournal6_20061024.patch I created the directories as per Pawel's original post (http://lists.freebsd.org/pipermail/freebsd-fs/2006-June/001962.html) and the patch succeeded with no failed

Hi All, I am trying to read group descriptor from disk. I am able to read the superblock structure successfully. But I am not getting successful to get the group descriptor. Here is my code. Please check out what is missing. #include<linux/ext3_fs.h> #include<sys/types.h> #include<sys/stat.h> #include<stdio.h> #include<unistd.h> #include<fcntl.h>

''bh'' is forgot to release if no error is detected Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> --- fs/btrfs/volumes.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 8b9fb8c..69fc902 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -631,6 +631,7 @@ static int

This series introduces a generic readahead interface for btrfs trees. The intention is to use it to speed up scrub in a first run, but balance is another hot candidate. In general, every tree walk could be accompanied by a readahead. Deletion of large files comes to mind, where the fetching of the csums takes most of the time. Also the initial build-ups of free-space-caches and

This series introduces a generic readahead interface for btrfs trees. The intention is to use it to speed up scrub in a first run, but balance is another hot candidate. In general, every tree walk could be accompanied by a readahead. Deletion of large files comes to mind, where the fetching of the csums takes most of the time. Also the initial build-ups of free-space-caches and

Hi, The following patches add support for ext4 and btrfs to PV-GRUB. These patches are taken nearly verbatim from those provided by Fedora and Gentoo. We''ve been using these patches for the PV-GRUB images available in EC2 for some time now with no problems. Changes from v1: - Makefile has been changed to check the exit code from patch - The btrfs patch has been rebased to apply

This series adds an initial implementation for scrub. It works quite straightforward. The usermode issues an ioctl for each device in the fs. For each device, it enumerates the allocated device chunks. For each chunk, the contained extents are enumerated and the data checksums fetched. The extents are read sequentially and the checksums verified. If an error occurs (checksum or EIO), a good copy

Some programs like btrfsck should not be run on a mounted filesystem. This patch adds a check in btrfs_open_devices() for the mount status of every device belonging to the filesystem. The function check_mount() gets improved support for loopback devices. It now detects if the program is run on the file that is being used by the loopback device. Signed-off-by: Andi Drebes

In a multi device setup, the chunk allocator currently always allocates chunks on the devices in the same order. This leads to a very uneven distribution, especially with RAID1 or RAID10 and an uneven number of devices. This patch always sorts the devices before allocating, and allocates the stripes on the devices with the most available space, as long as there is enough space available. In a low

This adds ioctl BTRFS_IOC_GET_FSIDS which reads the fs info through the btrfs-control Signed-off-by: Anand Jain <anand.jain@oracle.com> --- fs/btrfs/super.c | 47 ++++++++++++++++++++++++++++++++++++++----- fs/btrfs/volumes.c | 33 ++++++++++++++++++++++++++++++ fs/btrfs/volumes.h | 2 + include/uapi/linux/btrfs.h | 19 +++++++++++++++++ 4 files changed,

In a multi device setup, the chunk allocator currently always allocates chunks on the devices in the same order. This leads to a very uneven distribution, especially with RAID1 or RAID10 and an uneven number of devices. This patch always sorts the devices before allocating, and allocates the stripes on the devices with the most available space, as long as there is enough space available. In a low

Hello, This patch series adds an initial implementation of restriper (it''s a clever name for relocation framework that allows to do selective profile changing and selective balancing with some goodies like pausing/resuming and reporting progress to the user. Profile changing is global (per-FS) so far, per-subvolume profiles require some discussion and can be implemented in future.

Hi folks PV-GRUB built from Xen 3.3.0 is not able to read from devices without a partition table: | grubdom> root (hd0) | Filesystem type unknown, using whole disk Part of the config: | disk = [ "phy:vg0_sledgehammer/servext_root,xvda,w" ] Device: | # file -s /dev/vg0_sledgehammer/servext_root | /dev/vg0_sledgehammer/servext_root: symbolic link to

Here are 3 patches to avoid undesired aborts of mkfs.btrfs. These are based on top of Chris''s btrfs-progs.git: git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git Thanks, H.Seto Hidetoshi Seto (3): btrfs-progs: error if device for mkfs is too small btrfs-progs: error if device have no space to make primary chunks btrfs-progs: calculate available