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
This is a patch purely for comment. There's several things wrong
with it that I need to fix (at minimum, it has too much debugging
output, the __balance_chunk_filters function takes the wrong set of
parameters to make it properly extensible, and the progress counter is
broken).
I'm planning
This is the userspace side of the filtered balance patch, again
purely for comment at this stage. The command-line invocation will
look something like this:
$ sudo btrfs fi bal --filter type=meta,~raid1 /mnt
This will balance all metadata block groups that are not replicated
with RAID1.
I looked through the man page and wiki but didn't see a command to
list all files on a mount point that are compressed.
A command that could do the following would be nice:
Full Pathame Compressed Size Bytes Uncompressed Size Bytes
Compression Ratio
/some/file 1500
Hi,
We have file readahead to do asyn file read, but has no metadata
readahead. For a list of files, their metadata is stored in fragmented
disk space and metadata read is a sync operation, which impacts the
efficiency of readahead much. The patches try to add meatadata readahead
for btrfs. It
Implement btrfs specific .metadata_incore.
In btrfs, all metadata pages are in a special btree_inode, we take pages from
it.
we only account referenced pages here. Say we collect metadata info in one
boot, do metadata readahead in next boot and we might collect metadata
again. The readahead could
Subject: add metadata_readahead ioctl in vfs
Add metadata readahead ioctl in vfs. Filesystem can hook to
super_operations.metadata_readahead to handle filesystem specific task.
Next patch will give an example how btrfs implements it.
Signed-off-by: Shaohua Li shaohua...@intel.com
Reviewed-by:
do validation for extent_buffer if it's skipped before
With metadata readahead, we slightly change the behavior. Before it, we allocate
an extent_buffer (so set page-private), do metadata read and
btree_readpage_end_io_hook() will do validation. After it, we directly do
metadata readahead, and
Excerpts from Yan, Zheng's message of 2011-01-18 00:34:40 -0500:
take offset of start position into account when calculating page count.
Thanks Yan, do you have a test case that exposes this? I'd like to add
it to xfsqa if it makes sense.
-chris
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Boot with meego kernel 2.6.35.9-6.5-adaptation-n900 on n900, an oops happend, I
see similar reporting in lkml:
https://lkml.org/lkml/2010/8/26/103
I just happened once, so I don't know hot to reproduce it.
`addr2line -e vmlinux 0xc0197888` show
fs/btrfs/extent_io.c:3358
ret =
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