Hi,
> Hi, I got an oops this morning with btrfs on the Ubuntu 2.6.31
> kernel. I mounted with compress and thread_pool=4. This is on a
> 64 bit quad AMD machine.
>
> [614439.132228] [] ? btrfs_set_acl+0x87/0x230
Could you tell us what line of the source code that is? This shoul
On Thu, Sep 17, 2009 at 05:04:11PM -0500, Steven Pratt wrote:
> Chris Mason wrote:
> >On Thu, Sep 17, 2009 at 04:17:14PM -0400, Chris Mason wrote:
> >>[ crashes on runs involving unmounts ]
> >>
> >>The run is still going here, but it has survived longer than before.
> >>I'm trying with Yan Zheng's
Hi,
I got an oops this morning with btrfs on the Ubuntu 2.6.31 kernel. I mounted
with compress and thread_pool=4. This is on a 64 bit quad AMD machine.
Sep 18 04:00:07 caper kernel: [614439.131866] BUG: unable to handle kernel NULL
pointer dereference at 0004
Sep 18 04:00:07 caper
resend Aaron Straus's patch
Signed-off-by: Yan Zheng
---
diff --git a/btrfsctl.c b/btrfsctl.c
index b323818..66c4e89 100644
--- a/btrfsctl.c
+++ b/btrfsctl.c
@@ -46,7 +46,7 @@ static inline int ioctl(int fd, int define, void *arg) {
return 0; }
static void print_usage(void)
{
printf("
This patch adds semantic checks for links to snapshot/subvolume and
root back/forward references.
Signed-off-by: Yan Zheng
---
diff -urp btrfs-progs-unstable/btrfsck.c btrfs-progs-1/btrfsck.c
--- btrfs-progs-unstable/btrfsck.c 2009-06-12 21:33:43.467764155 +0800
+++ btrfs-progs-1/btrfsck.c
This patch adds snapshot/subvolume destroy ioctl. Subvolume that
isn't being used and doesn't contains links to other subvolumes
can be destroyed.
Signed-off-by: Yan Zheng
---
diff -urp 4/fs/btrfs/ctree.h 5/fs/btrfs/ctree.h
--- 4/fs/btrfs/ctree.h 2009-09-18 15:48:21.807350311 +0800
+++ 5/fs/btr
btrfs allows subvolumes and snapshots anywhere in the directory tree.
If we snapshot a subvolume that contains a link to other subvolume
called subvolA, subvolA can be accessed through both the original
subvolume and the snapshot. This is similar to creating hard link to
directory, and has the very
The new back reference format does not allow reusing objectid of
deleted snapshot/subvol. So we use ++highest_objectid to allocate
objectid for new snapshot/subvol.
Now we use ++highest_objectid to allocate objectid for both new inode
and new snapshot/subvolume, so this patch removes 'find hole' c
This patch contains two changes to avoid unnecessary tree block reads during
snapshot dropping. First, check tree block's reference count and flags before
reading the tree block. if reference count > 1 and there is no need to update
backrefs, we can avoid reading the tree block. Second, save when s
