On Fri, Dec 15, 2017 at 12:53 AM, Jan Kara <j...@suse.cz> wrote:
> On Thu 14-12-17 22:30:26, Yan, Zheng wrote:
>> On Thu, Dec 14, 2017 at 9:43 PM, Jan Kara <j...@suse.cz> wrote:
>> > On Thu 14-12-17 18:55:27, Yan, Zheng wrote:
>> >> We recently got an Oops
On Thu, Dec 14, 2017 at 9:43 PM, Jan Kara <j...@suse.cz> wrote:
> On Thu 14-12-17 18:55:27, Yan, Zheng wrote:
>> We recently got an Oops report:
>>
>> BUG: unable to handle kernel NULL pointer dereference at (null)
>> IP: jbd2__journal_start+
page)
Cc: sta...@vger.kernel.org
Signed-off-by: "Yan, Zheng" <z...@redhat.com>
---
mm/memory.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/mm/memory.c b/mm/memory.c
index a728bed16c20..db2a50233c49 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4044,6 +4044
tion/filesystems/ext4.txt | 7 +++
> fs/9p/Kconfig | 3 ---
> fs/Kconfig | 6 +-
> fs/btrfs/Kconfig | 3 ---
> fs/ceph/Kconfig | 3 —
Ceph bits looks good.
Acked-by: Yan, Zheng" <z...@redhat.com&
On Fri, Jun 2, 2017 at 10:18 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Fri, Jun 2, 2017 at 2:18 PM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Fri, Jun 2, 2017 at 7:33 PM, Arnd Bergmann <a...@arndb.de> wrote:
>>> On Fri, Jun 2, 2017 at 1:18 PM, Yan, Zheng &
On Fri, Jun 2, 2017 at 7:33 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Fri, Jun 2, 2017 at 1:18 PM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Fri, Jun 2, 2017 at 6:51 PM, Arnd Bergmann <a...@arndb.de> wrote:
>>> On Fri, Jun 2, 2017 at 12:10 PM,
On Fri, Jun 2, 2017 at 6:51 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Fri, Jun 2, 2017 at 12:10 PM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Fri, Jun 2, 2017 at 5:45 PM, Arnd Bergmann <a...@arndb.de> wrote:
>>> On Fri, Jun 2, 2017 at 4:09 AM,
On Fri, Jun 2, 2017 at 5:45 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Fri, Jun 2, 2017 at 4:09 AM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Fri, Jun 2, 2017 at 8:57 AM, Deepa Dinamani <deepa.ker...@gmail.com>
>> wrote:
>>> On Thu, Jun 1, 2017 at 5:
On Fri, Jun 2, 2017 at 8:57 AM, Deepa Dinamani <deepa.ker...@gmail.com> wrote:
> On Thu, Jun 1, 2017 at 5:36 PM, John Stultz <john.stu...@linaro.org> wrote:
>> On Thu, Jun 1, 2017 at 5:26 PM, Yan, Zheng <uker...@gmail.com> wrote:
>>> On Thu, Jun 1, 2017 at 6
On Thu, Jun 1, 2017 at 6:22 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Thu, Jun 1, 2017 at 11:56 AM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Sat, Apr 8, 2017 at 8:57 AM, Deepa Dinamani <deepa.ker...@gmail.com>
>> wrote:
>
>>> diff --git a/driver
On Thu, Jun 1, 2017 at 6:22 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Thu, Jun 1, 2017 at 11:56 AM, Yan, Zheng <uker...@gmail.com> wrote:
>> On Sat, Apr 8, 2017 at 8:57 AM, Deepa Dinamani <deepa.ker...@gmail.com>
>> wrote:
>
>>> diff --git a/driver
->sb->s_time_gran);
This change causes our kernel_untar_tar test case to fail (inode's
ctime goes back). The reason is that there is time drift between the
time stamps got by ktime_get_real_ts() and current_time(). We need to
revert this change until current_time() uses ktime_get_real_ts()
in
(),
sb_start_intwrite() is called when (type __TRANS_FREEZABLE) is true. but
(TRANS_ATTACH __TRANS_FREEZABLE) is false. So we see the bad
bad unlock balance bug.
Yan, Zheng
On 08/22/2013 05:40 PM, Sage Weil wrote:
I just noticed that there is a locking imbalance warning with sb_internal
On Wed, Sep 21, 2011 at 6:06 PM, Liu Bo liubo2...@cn.fujitsu.com wrote:
Hi,
While running my tool(attachment), I would encounter the BUG_ON, and I FAILED
to find where went wrong :(
The tool is with inode_cache option, and mainly do three things:
a. run Chris's synctest in BACKGROUND
b.
On Thu, Sep 22, 2011 at 7:42 AM, David Sterba d...@jikos.cz wrote:
On Wed, Sep 21, 2011 at 06:57:56PM +0800, Yan, Zheng wrote:
modification to fs trees is not allowed after create_pending_snapshots()
Do you have an idea whether there is a reasonable way to catch this in
code? (even if only
Offset field in data extent backref can underflow if clone range ioctl
is used. We can reliably detect the underflow because max file size is
limited to 2^63 and max data extent size is limited by block group size.
Signed-off-by: Zheng Yan zheng.z@intel.com
---
diff --git
On Thu, Aug 25, 2011 at 3:56 PM, Li Zefan l...@cn.fujitsu.com wrote:
We have an offset in file extent to indicate its position in the
corresponding extent item in extent tree. We also have an offset in
extent item to indicate the start position of the file extent that
uses this item.
The
On Fri, Aug 26, 2011 at 10:00 AM, Li Zefan l...@cn.fujitsu.com wrote:
Yan, Zheng wrote:
On Thu, Aug 25, 2011 at 3:56 PM, Li Zefan l...@cn.fujitsu.com wrote:
We have an offset in file extent to indicate its position in the
corresponding extent item in extent tree. We also have an offset
I found another bug. There are codes (btrfs_save_ino_cache) that
modify fs trees after
create_pending_snapshots is called. This can corrupt your fs.
On Mon, Jun 13, 2011 at 3:13 PM, Li Zefan l...@cn.fujitsu.com wrote:
Cc: Josef
I encountered following panic using 'btrfs-unstable + for-linus'
Add a mutex to btrfs_init_reloc_root() to prevent the reloc tree
creation from concurrent execution.
On Mon, Jun 13, 2011 at 3:13 PM, Li Zefan l...@cn.fujitsu.com wrote:
Cc: Josef
I encountered following panic using 'btrfs-unstable + for-linus'
kernel.
I ran btrfs fi bal /test5 command, and
The usage of trans_mutex in relocation code is subtle. It controls
interaction of relocation
with transaction start, transaction commit and snapshot creation.
Simple replacing
trans_mutex with trans_lock is wrong.
On Mon, Jun 13, 2011 at 3:13 PM, Li Zefan l...@cn.fujitsu.com wrote:
Cc: Josef
On Tue, Jun 14, 2011 at 3:55 AM, Chris Mason chris.ma...@oracle.com wrote:
Excerpts from Yan, Zheng's message of 2011-06-13 10:58:35 -0400:
The usage of trans_mutex in relocation code is subtle. It controls
interaction of relocation
with transaction start, transaction commit and snapshot
On Wed, Jun 8, 2011 at 5:46 PM, liubo liubo2...@cn.fujitsu.com wrote:
When we use reloc root to cow or copy a tree block, we do not set the block's
owner, instead we set its header's flag with BTRFS_HEADER_FLAG_RELOC.
So here we should check for root_key's offset.
Signed-off-by: Liu Bo
On Wed, Apr 27, 2011 at 1:20 PM, Brian Parma freec...@cox.net wrote:
I have a 1.5 TB (1,475,720,773,632) partition that I wanted to convert from
ext4 to btrfs. It is currently used as / for ubuntu 10.10.
I booted into 11.04 beta2 and tried a 'btrfs-convert /dev/sdc1', but after
about 20
On Thu, Apr 14, 2011 at 2:54 AM, Josef Bacik jo...@redhat.com wrote:
There have been many sporadic reports of the following panic
[ cut here ]
kernel BUG at fs/btrfs/extent-tree.c:5498!
invalid opcode: [#1] PREEMPT SMP
last sysfs file:
On Sat, Feb 26, 2011 at 7:43 AM, Ilya Dryomov idryo...@gmail.com wrote:
In case of an ENOSPC error from btrfs_relocate_chunk() (line 2202) while
relocating a block group with offset 0 we end up endlessly looping.
This happens because key.offset -= 1 statement then unconditionally
brings us
Mark the cloned backref_node as checked in clone_backref_node()
Signed-off-by: Yan, Zheng zheng.z@intel.com
---
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 045c9c2..bef9c22 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1157,6 +1157,7 @@ static int
please try patch attached below, Thanks.
---
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index b37d723..49d6b13 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1158,6 +1158,7 @@ static int clone_backref_node(struct
btrfs_trans_handle *trans,
On Fri, Jan 21, 2011 at 6:52 AM, Ian! D. Allen idal...@idallen.ca wrote:
Still getting btrfsck errors with this:
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
# ./btrfstest.sh
Using /mnt/sdb1 /dev/sdb1 on /dev/sdb
+ mkfs.btrfs -L BTRFStest /dev/sdb1
WARNING!
On Tue, Jan 18, 2011 at 9:22 PM, Erik Logtenberg e...@logtenberg.eu wrote:
On 01/18/2011 01:54 AM, Yan, Zheng wrote:
On Mon, Jan 17, 2011 at 10:14 PM, Erik Logtenberg e...@logtenberg.eu wrote:
Hi,
btrfs balance results in:
http://pastebin.com/v5j0809M
My system: fully up-to-date Fedora 14
appreciate any
feedback you may have. Thanks,
FYI: Using clone ioctl can do the same thing (except reading data and
computing hash in user space).
Yan, Zheng
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More
HPET doesn't use timer_interrupt() as interrupt handler now. So count of
HPET interrupt isn't recorded in per_cpu(irq_stat, cpu).irq0_irqs. This
confuses NMI watchdog when using HPET as tick device.
Signed-off-by: Yan, Zheng zheng.z@intel.com
---
diff --git a/arch/x86/include/asm/hardirq.h b
Sent this mail to wrong list, sorry for interrupting.
Yan, Zheng
On Wed, Dec 29, 2010 at 9:57 AM, Yan, Zheng zheng.z@linux.intel.com wrote:
HPET doesn't use timer_interrupt() as interrupt handler now. So count of
HPET interrupt isn't recorded in per_cpu(irq_stat, cpu).irq0_irqs
+= cache-reserved_pinned;
cache-reserved_pinned = 0;
cache-ro = 1;
ret = 0;
}
+
spin_unlock(cache-lock);
spin_unlock(sinfo-lock);
return ret;
Looks good for me,
Yan, Zheng
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On Fri, Dec 3, 2010 at 4:16 PM, liubo liubo2...@cn.fujitsu.com wrote:
When the filesystem is readonly, avoid transaction stuff by checking MS_RDONLY
at start transaction time.
Signed-off-by: Liu Bo liubo2...@cn.fujitsu.com
---
fs/btrfs/transaction.c | 3 +++
1 files changed, 3
into unallocated chunk.
need code to check validity of the user input.
Yan, Zheng
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On Tue, Dec 14, 2010 at 9:33 AM, Chris Mason chris.ma...@oracle.com wrote:
Excerpts from Yan, Zheng's message of 2010-11-16 20:38:23 -0500:
On Wed, Nov 17, 2010 at 5:22 AM, Josef Bacik jo...@redhat.com wrote:
There is a bug in find_free_extent where if we don't find a free extent in
the
start + num_bytes = actual_end can happen when compressed page writeback
races
with file truncation. In that case we need unlock and release pages past the end
of file.
Signed-off-by: Yan, Zheng zheng.z@intel.com
---
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8039390..2ea98d8
On Thu, Dec 2, 2010 at 11:42 AM, liubo liubo2...@cn.fujitsu.com wrote:
On 12/01/2010 06:20 PM, liubo wrote:
When the filesystem is readonly, avoid transaction stuff by checking
MS_RDONLY at
start transaction time.
This patch may lead btrfs panic.
Since btrfs allows transaction under
are given. So
instead kill this check and get the proper index for the raid type we want
from
the allocator. Thanks,
Loop through raid types is for handling failure in the middle of raid type
conversion.
Yan, Zheng
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are given. So
instead kill this check and get the proper index for the raid type we want
from
the allocator. Thanks,
Loop through raid types is for handling failure in the middle of raid type
conversion.
Yan, Zheng
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up system chunk
btrfs-convert: extent-tree.c:2529: btrfs_reserve_extent: Assertion
`!(ret)' failed
Abgebrochen
Try btrfs-convert -r /dev/xxx, hopefully it will recover your ext2.
Yan, Zheng
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file to us?
Regards
Yan, Zheng
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in the
changelog for 2.6.35.1 I did not try again with this version.
Do you have more than one machines? would you please setup netconsole
to see what happen.
Thanks
Yan, Zheng
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On Tue, Aug 10, 2010 at 6:20 AM, K. Richard Pixley r...@noir.com wrote:
I've just gotten:
r...@diamonds:~$ time sudo /sbin/btrfsck /dev/sda7
btrfsck: btrfsck.c:585: splice_shared_node: Assertion `!(src ==
src_node-root_cache)' failed.
Aborted
Does this indicate a coding error in btrfsck
miss here means miss for read-ahead because
the page is already in the page cache
Yan, Zheng
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to happen less frequently.
Any known issues I should be aware of?
Thank you for reporting this. I will dig in.
Yan, Zheng
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with no raid, vanilla kernel:
2.6.34.
Nothing to worry about.
Yan, Zheng
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2010/7/15 Miao Xie mi...@cn.fujitsu.com:
Hi, everyone
I found btrfs will hangup when we run the sync command on my
x86_64 box.
The reproduce steps is following:
# mkfs.btrfs -s 8192 -l 8192 -n 8192 /dev/sda1
# mount /dev/sda1 /mnt
# echo 1234567 /mnt/aaa
# sync
(btrfs hangs up)
It
of metadata space. btrfs in 2.6.35 reserves
more metadata space for system use than btrfs in 2.6.34. That's why
these error message only appear on 2.6.35.
Yan, Zheng
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More
, btrfs in 2.6.35 reserves more metadata space for
system use than older btrfs. If the FS has already ran out of metadata space,
using btrfs in 2.6.35 doesn't help.
Yan, Zheng
[ cut here ]
WARNING: at fs/btrfs/extent-tree.c:3441 btrfs_block_rsv_check+0x10c/0x13e
On Thu, Jun 17, 2010 at 7:26 AM, John Wyzer john.wy...@gmx.de wrote:
On 17/06/10 00:45, Yan, Zheng wrote:
On Thu, Jun 17, 2010 at 4:25 AM, John Wyzer john.wy...@gmx.de wrote:
btrfs: fail to dirty inode 6634 error -28
[...] (nothing new coming, only error -28)
Apart from that, I had messages
: [ 209.858441] RSP 88012821b820
Jun 10 21:23:17 bradf-x301 kernel: [ 209.858448] ---[ end trace
32d3e1002acaefc5 ]---
I have already sent a patch for this.
http://www.spinics.net/lists/linux-btrfs/msg05150.html
Yan, Zheng
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Fix a potential null dereference in relocation.c
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/relocation.c 2/fs/btrfs/relocation.c
--- 1/fs/btrfs/relocation.c 2010-05-26 00:13:07.227605825 +0800
+++ 2/fs/btrfs/relocation.c 2010-05-31 16:35:23.489829633 +0800
Tree blocks can live in data block groups in FS converted from extN.
So it's easy to trigger the BUG_ON.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/extent-tree.c 3/fs/btrfs/extent-tree.c
--- 1/fs/btrfs/extent-tree.c2010-05-26 23:55:46.610378078 +0800
+++ 3/fs
On Tue, Jun 1, 2010 at 3:01 AM, Bruce Guenter br...@untroubled.org wrote:
On Wed, May 12, 2010 at 01:02:07PM +0800, Yan, Zheng wrote:
Dropping a tree can be lengthy. It's not good to let sync wait for hours.
For most linux FS, 'sync' just force an transaction/journal commit. I don't
think
On Sat, Mar 20, 2010 at 12:26 PM, Sean Bartell
wingedtachik...@gmail.com wrote:
A filesystem can have disk extents in arbitrary places on the disk, as
well as extents that must be read into memory because they have
compression or encryption btrfs doesn't support. These extents can be
passed to
On Sat, Mar 20, 2010 at 12:24 PM, Sean Bartell
wingedtachik...@gmail.com wrote:
An extent_io_tree is used for all free space information. This allows
removal of ext2_alloc_block and ext2_free_block, and makes
create_ext2_image less ext2-specific.
---
convert.c | 154
On Sat, May 15, 2010 at 12:23 AM, Martin Bueger
mbuer...@edu.uni-klu.ac.at wrote:
Hello,
when I try to resize the FS with btrfsctl -r it works using + or -, hence,
extending or shrinking the FS but when I want to set it to a certain size I
always hit the follwing bug:
[ cut here
prepare for the log code
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/ctree.c 2/fs/btrfs/ctree.c
--- 1/fs/btrfs/ctree.c 2010-04-14 14:49:56.342950744 +0800
+++ 2/fs/btrfs/ctree.c 2010-05-11 14:00:04.122357838 +0800
@@ -279,7 +279,8 @@ int btrfs_block_can_be_shared
split btrfs_alloc_free_block() into btrfs_reserved_tree_block()
and btrfs_alloc_reserved_tree_block().
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 3/fs/btrfs/ctree.h 4/fs/btrfs/ctree.h
--- 3/fs/btrfs/ctree.h 2010-05-11 14:09:45.052107958 +0800
+++ 4/fs/btrfs/ctree.h 2010-05-11
the tree log recover code expects no free space cached before it executes.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 4/fs/btrfs/extent-tree.c 8/fs/btrfs/extent-tree.c
--- 4/fs/btrfs/extent-tree.c2010-05-11 14:15:29.174108554 +0800
+++ 8/fs/btrfs/extent-tree.c2010-05-11
On Tue, May 11, 2010 at 11:45 PM, Bruce Guenter br...@untroubled.org wrote:
On Tue, May 11, 2010 at 08:10:38AM +0800, Yan, Zheng wrote:
This is because the snapshot deleting ioctl only removes the a link.
Right, I understand that. That part is not unexpected, as it works just
like unlink
After the path is released, the generation number got from block
pointer is no long valid. The race may cause disk corruption, because
verify_parent_transid() calls clear_extent_buffer_uptodate() when
generation numbers mismatch.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs
] EIP: [f85f3b7e] relocate_tree_blocks+0x52e/0x590
[btrfs] SS:ESP 0068:cd333c14
[ 298.660150] ---[ end trace fb3e62da0e52a0bd ]---
I have sent a set of patches that address bugs like this.
Yan, Zheng
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The size of reserved space is stored in space_info. If block groups
of different raid types are linked to separate space_info, changing
allocation profile will corrupt reserved space accounting.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h
We already have fs_info-chunk_mutex to avoid concurrent
chunk creation.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h
--- 2/fs/btrfs/ctree.h 2010-04-26 17:24:10.436081649 +0800
+++ 3/fs/btrfs/ctree.h 2010-04-26 17:24:10.441079491 +0800
All code in init_btrfs_i can be moved into btrfs_alloc_inode()
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/inode.c 3/fs/btrfs/inode.c
--- 2/fs/btrfs/inode.c 2010-04-26 17:24:41.254078880 +0800
+++ 3/fs/btrfs/inode.c 2010-04-26 17:24:41.270103836 +0800
@@ -3595,40
Reserve metadata space for extent tree, checksum tree and root tree
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h
--- 2/fs/btrfs/ctree.h 2010-04-26 17:27:31.644829469 +0800
+++ 3/fs/btrfs/ctree.h 2010-04-26 17:27:31.648830941 +0800
@@ -682,21
. This change is important if set/clear_extent_bit involves
multiple extent_state.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/btrfs_inode.h 3/fs/btrfs/btrfs_inode.h
--- 2/fs/btrfs/btrfs_inode.h2010-04-26 17:26:55.450105767 +0800
+++ 3/fs/btrfs/btrfs_inode.h2010-04
reserve metadata space for handling orphan inodes
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/btrfs_inode.h 3/fs/btrfs/btrfs_inode.h
--- 2/fs/btrfs/btrfs_inode.h2010-04-26 17:27:52.113080051 +0800
+++ 3/fs/btrfs/btrfs_inode.h2010-04-26 17:27:52.118079430 +0800
Previous patches make the allocater return -ENOSPC if there is no
unreserved free metadata space. This patch updates tree log code
and various other places to propagate/handle the ENOSPC error.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/disk-io.c 3/fs/btrfs/disk-io.c
Pre-allocate space for data relocation. This can detect ENOPSC
condition caused by fragmentation of free space.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h
--- 2/fs/btrfs/ctree.h 2010-04-26 17:28:20.493839748 +0800
+++ 3/fs/btrfs/ctree.h
Previous patches make the allocater return -ENOSPC if there is
no unreserved free meta space. This patch updates tree log code
and various other places to propagate/handle the ENOSPC error.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 10/fs/btrfs/disk-io.c 11/fs/btrfs/disk-io.c
reserve metadata space for handling orphan inodes
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 9/fs/btrfs/btrfs_inode.h 10/fs/btrfs/btrfs_inode.h
--- 9/fs/btrfs/btrfs_inode.h2010-04-18 10:26:38.326701000 +0800
+++ 10/fs/btrfs/btrfs_inode.h 2010-04-18 10:50:26.564697845 +0800
. This change is important if set/clear_extent_bit involves
multiple extent_state.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 7/fs/btrfs/btrfs_inode.h 8/fs/btrfs/btrfs_inode.h
--- 7/fs/btrfs/btrfs_inode.h2010-04-13 15:44:56.104814000 +0800
+++ 8/fs/btrfs/btrfs_inode.h2010-04
Shrink delay allocated space in a synchronized manner is more
controllable than flushing all delay allocated space in an async
thread.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 3/fs/btrfs/ctree.h 4/fs/btrfs/ctree.h
--- 3/fs/btrfs/ctree.h 2010-04-18 08:13:15.457699211 +0800
The size of reserved space is stored in space_info. If block groups
of different raid types are linked to separate space_info, changing
allocation profile will corrupt reserved space accounting.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/ctree.h 2/fs/btrfs/ctree.h
We already have fs_info-chunk_mutex to avoid concurrent
chunk creation.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h
--- 2/fs/btrfs/ctree.h 2010-04-18 08:12:22.086699485 +0800
+++ 3/fs/btrfs/ctree.h 2010-04-18 08:13:15.457699211 +0800
Introducing contexts for metadata reseravtion has two major
advantages. First, it makes metadata reseravtion more traceable.
Second, it can reclaim freed space and re-add them to the itself
after transaction committed.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 5/fs/btrfs
All code in init_btrfs_i can be moved into btrfs_alloc_inode()
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 4/fs/btrfs/inode.c 5/fs/btrfs/inode.c
--- 4/fs/btrfs/inode.c 2010-04-18 08:13:48.183698829 +0800
+++ 5/fs/btrfs/inode.c 2010-04-18 10:59:07.534719917 +0800
@@ -3595,40
the same time and
end up allocating twice the amount of space, which is why I did the waitqueue
thing. It seems like this is still a possibility with your patch. Thanks,
This is impossible because the very first thing do_chunk_alloc does is
lock the chunk_mutex.
Yan, Zheng
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On Mon, Apr 19, 2010 at 10:48 PM, Josef Bacik jo...@redhat.com wrote:
On Mon, Apr 19, 2010 at 10:46:12PM +0800, Yan, Zheng wrote:
On Mon, Apr 19, 2010 at 9:57 PM, Josef Bacik jo...@redhat.com wrote:
The purpose of maybe_allocate_chunk was that there is no way to know if
some
other CPU
fixed by commit
http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-unstable.git;a=commit;h=9f680ce04ea19dabbbafe01b57b61930a9b70741
Yan, Zheng
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On Thu, Mar 18, 2010 at 4:45 AM, Josef Bacik jo...@redhat.com wrote:
If the amount of free space left in a device is less than what we think should
be the minimum size, just ignore the minimum size and use the amount we have.
I
ran into this running tests on a 600mb volume, the chunk
' parameter for page_cache_sync_readahead is NULL in this case.
Commit 0141450f66c3c12a3aaa869748caa64241885cdf added code that
dereference 'filp'.
Fengguang, would you please fix this.
Regards
Yan, Zheng
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On Fri, Mar 19, 2010 at 9:59 PM, Josef Bacik jo...@redhat.com wrote:
On Fri, Mar 19, 2010 at 11:09:25AM +0800, Yan, Zheng wrote:
On Thu, Mar 18, 2010 at 11:47 PM, Josef Bacik jo...@redhat.com wrote:
A user reported a bug a few weeks back where if he set max_extent=1m and
then
did a dd
);
btrfs_set_file_extent_num_bytes(leaf, fi,
Acked-by: Yan Zheng zheng@oracle.com
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Increase extent buffer's reference count while holding the lock.
Otherwise it can race with try_release_extent_buffer.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/extent_io.c 2/fs/btrfs/extent_io.c
--- 1/fs/btrfs/extent_io.c 2010-01-17 15:48:16.770302026 +0800
On 02/04/2010 04:46 PM, Yan, Zheng wrote:
Increase extent buffer's reference count while holding the lock.
Otherwise it can race with try_release_extent_buffer.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/extent_io.c 2/fs/btrfs/extent_io.c
--- 1/fs/btrfs
to fragments of free space. I'm working on make 'btrfs-vol -b'
return -ENOSPC in this case.
Yan, Zheng
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When dropping a empty tree, walk_down_tree() skips checking
extent information for the tree root. This will triggers a
BUG_ON in walk_up_proc().
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs/extent-tree.c 2/fs/btrfs/extent-tree.c
--- 1/fs/btrfs/extent-tree.c2010-01
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp btrfs-progs-unstable/btrfsck.c btrfs-progs-2/btrfsck.c
--- btrfs-progs-unstable/btrfsck.c 2009-09-28 15:54:55.980479398 +0800
+++ btrfs-progs-2/btrfsck.c 2010-01-31 09:46:24.645485459 +0800
@@ -581,7 +581,6 @@ again
On Mon, Feb 1, 2010 at 3:33 AM, Troy Ablan tab...@gmail.com wrote:
Yan, Zheng wrote:
Please try the patch attached below. It should solve the bug during
mounting
that fs. But I don't know why there are so many link count errors in that fs.
How old is that fs? what was that fs used
this. Would you please run btrsck and mount
that fs again with the debug patch attached below.
Regards
Yan, Zheng
---
diff -urp 1/fs/btrfs/extent-tree.c 2/fs/btrfs/extent-tree.c
--- 1/fs/btrfs/extent-tree.c2010-01-22 12:16:34.203525744 +0800
+++ 2/fs/btrfs/extent-tree.c2010-01-30 20:03
: Chris Mason chris.ma...@oracle.com
Cc: Yan Zheng zheng@oracle.com
Cc: Josef Bacik jba...@redhat.com
Cc: Jens Axboe jens.ax...@oracle.com
Cc: linux-btrfs@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
---
fs/btrfs/disk-io.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions
to save your data is try mounting the FS in readonly mode and
copying the data out.
Yan, Zheng
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changes and add code to open_ctree() to do orphan cleanup for
the default subvol.
Regards
Yan, Zheng
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to offset of device.
Yan, Zheng
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Fix bug reported by Johannes Hirte. The reason of that bug
is btrfs_del_items is called after btrfs_duplicate_item and
btrfs_del_items triggers tree balance. The fix is check that
case and call btrfs_search_slot when needed.
Signed-off-by: Yan Zheng zheng@oracle.com
---
diff -urp 1/fs/btrfs
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