similar to: Transparent compression for Btrfs

The 'disable_cb' callback is designed as an optimization to tell the host we don't need callbacks now. As it is not reliable, the debug check is overzealous: it can happen on two CPUs at the same time. Document this. Even if it were reliable, the virtio_net driver doesn't disable callbacks on transmit so the START_USE/END_USE debugging reentrance protection can be easily tripped

The 'disable_cb' callback is designed as an optimization to tell the host we don't need callbacks now. As it is not reliable, the debug check is overzealous: it can happen on two CPUs at the same time. Document this. Even if it were reliable, the virtio_net driver doesn't disable callbacks on transmit so the START_USE/END_USE debugging reentrance protection can be easily tripped

Hi, Here''s an implementation of NFS support for btrfs. It does not work in one particular case as described in http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg00298.html. This uses the btrfs_iget helper introduced previously. Comments ? --- Signed-off-by: Balaji Rao <balajirrao@gmail.com> diff -r 3f0eee804974 Makefile --- a/Makefile Thu Jun 26 10:34:20 2008 -0400

Hi, I`ve find about BtrFS just this week, so I`ve not tested it so far. I`ll do it as soon as I got a spare disk to experiment with. But, I`ve two questions regarding BtrFS. First, do you plan inclusion of BtrFS into mainline kernel and if so, when do you expect this to happen? Second, I would like to see some more benchmarks of BtrFS, so far you provided comparison to Ext3 and XFS, which is

Hi Rusty, I hit a bug in virtio_ring.c:218 when I was stressing virtio_net using kvm with -smp 4. static void vring_disable_cb(struct virtqueue *_vq) { struct vring_virtqueue *vq = to_vvq(_vq); START_USE(vq); --> BUG_ON(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT); vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;

Hi Rusty, I hit a bug in virtio_ring.c:218 when I was stressing virtio_net using kvm with -smp 4. static void vring_disable_cb(struct virtqueue *_vq) { struct vring_virtqueue *vq = to_vvq(_vq); START_USE(vq); --> BUG_ON(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT); vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;

http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2006/10/10/BAGERLM3RR15.DTL Link posted on Slashdot. I guess this may mean that reiser4 will never ever make it into the mainline kernel let alone RHEL/Centos

>>> Hi all >>> >>> Thanks to Milan I am able to get further with xen and reiser4 >>> >>> - In swap line 6 and 7 status_flags.c >>> >>> #include <linux/bio.h> >>> #include <linux/page-flags.h> >>> >>> >>> - PACKED is redefined, but the definitions are the same, so the gcc >>>

Hallo, we have a clinical system that generate lot of files that once written are never changed. This file consume lot of disk and tape space*, so my idea was to compress this files. The problem is that it can happen, that the users have to open this files later. Is there a VFS module for samba that show gzipped** read only files as if they were standard files ? Bye Andreas * Disks are

Hi, Some questions here : 1. Is there a way to compile kernel 2.6.10 or 2.6.9-mm1 with xen 2.0? I tried both (with mkbuildtree from linux-2.6.9-xen-sparse), and both failed (on different places). My primary goal is to use reiser4 on both xen-0 and xen-U kernel, so I''m more interested in -mm kernel. 2. If I use kernel 2.4.27 (xen-U), top doesn''t show correct cpu usage

I've been playing with ocfs2 in local mode, and was really suprised how fast it was. I was playing with extracting a linux distribution on my hardrive that was tar gzipped (GZIP=-1) and extracting it onto a different hard drive. This was with kernel 2.6.28. ocfs2-5m6s reiser4-4m19s reiser3-6m38 jfs-8m18s ext2-4m7s ext3-7m18s xfs-6m29s ext4m55s I noticed the delete times were very slow with

Please be patient with my ignorance if what I am asking is meaningless in any way. I am not too technically knowledgeable about filesystem internals but I am willing to learn. (I thought of posting to linux-ext4 but did not want to intrude within the technical threads with my layman thread.) From Wikipedia > ReiserFS article > Design section: [quote]ext2 and other Berkeley FFS-like

A few months ago we bought a GIS software. It is running under Windows XP Pro. This software has stored its databases in dbf files, located on one samba share. Executables reside on each WinXP Pro client. The software simply uses dbf databases located on samba share. Each session of the gis opens about 500 files. I have four workstations that are allowed to run this software. [kirchner]

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or

Hi, As I use btrfs as root FS, I wanted fstype to be able to recognize it. The following patch add support for this FS. Regards, benjamin Signed-off-by: Benjamin Cama <benoar at free.fr> --- diff --git a/usr/kinit/fstype/btrfs_fs.h b/usr/kinit/fstype/btrfs_fs.h new file mode 100644 index 0000000..e1f933e --- /dev/null +++ b/usr/kinit/fstype/btrfs_fs.h @@ -0,0 +1,51 @@ +#ifndef

I wanted to see how btrfs compares to other filesystems so I have been running bonnie++ on it. While the results are good(much faster then ext2) every once in awhile I get a kernel oops. I am testing on xubuntu 8.10 with the 2.6.27-7-686 kernel using the latest git sources. Most of the time the oops happens within 20min of running bonnie++ but sometimes it takes a few hours. This happens with and

Hi, I am using Flash Dashboard and 3 sets of listbox. When i change my first list box say name i need to dynamically change the second list box and from the second list box when i choose an name i need to change the content according to this in the third list box. How can i pass this datas from database in rails. thanx g.balaji -- Posted via http://www.ruby-forum.com/.

Hi All, i dont what changes i made recently but i am unable to hold the call for more 10 secs between MSN and GS. PSTN to MSN and PSTN to GS and vice versa works fine. i am not behind NAT.Also MSN to MSN works fine too. my SIP details [general] port = 5060 bindaddr = 0.0.0.0 context = bogon-calls ;context = default disallow=all allow=ulaw allow=alaw allow=ilbc allow=gsm ;My SIP phone - GS

Hi - there's a flag for rsync to compress the files in transit - is it possible to compress one side (target) with gzip and have rsync still work correctly? Any help would be appreciated. -- Ken

Hi, I want to disable extended attributes in my zfs on s10u4. I found out that the command to do is zfs set xattr=off <poolname>. But, I do not see this option in s10u4. How can I disable zfs extended attributes on s10u4? I''m not in the zfs-discuss alias. Please respond to me directly. Thanks Balaji