Re: [PATCH][RFC] Complex filesystem operations: split and join

2010-06-15 Thread Nikanth Karthikesan
Hi OGAWA Hirofumi Thanks a lot for looking at this and reply. On Sunday 13 June 2010 17:12:57 OGAWA Hirofumi wrote: > Nikanth Karthikesan writes: > > I had a need to split a file into smaller files on a thumb drive with no > > free space on it or anywhere else in the system. When the filesystem

btrfs oops in write_all_supers+0x294/0x2b4 [btrfs]

2010-06-15 Thread Jonathan Thackray
Hi, I've been running btrfs fine on my Sheevaplug (ARMv5) for a few months. However, last night, using kernel 2.6.34, I got repeated reboots, with many traces like this in the logs: Jun 15 07:45:49 moley kernel: CPU: 0Not tainted (2.6.34 #3) Jun 15 07:45:49 moley kernel: PC is at __bug

Re: [GIT PULL] Btrfs updates for 2.6.35

2010-06-15 Thread Ed Tomlinson
On Monday 14 June 2010 20:47:35 Chris Mason wrote: > On Mon, Jun 14, 2010 at 03:24:19PM -0400, Ed Tomlinson wrote: > > On Friday 11 June 2010 15:37:31 Chris Mason wrote: > > > Hello everyone, > > > > > > The master branch of the btrfs-unstable tree is a collection of fixes > > > and cleanups, incl

Re: [PATCH][RFC] Complex filesystem operations: split and join

2010-06-15 Thread OGAWA Hirofumi
Nikanth Karthikesan writes: >> I have no objections to such those operations (likewise make hole, >> truncate any range, etc. etc.). > > As far as FAT is concerned, Sparse files would break the on-disk format? Yes. In the case of making hole on FAT, I guess it will return the error, or emulate i

[PATCH 1/1] FS: btrfs, use helpers for rlimits

2010-06-15 Thread Jiri Slaby
Make sure compiler won't do weird things with limits. E.g. fetching them twice may return 2 different values after writable limits are implemented. I.e. either use rlimit helpers added in 3e10e716abf3c71bdb5d86b8f507f9e72236c9cd or ACCESS_ONCE if not applicable. Signed-off-by: Jiri Slaby Cc: Chr

Re: [PATCH][RFC] Complex filesystem operations: split and join

2010-06-15 Thread David Pottage
On 15/06/10 11:41, Nikanth Karthikesan wrote: > I had a one-off use-case, where I had no free-space, which made me > think along this line. > > 1. We have the GNU split tool for example, which I guess, many of us > use to split larger files to be transfered via smaller thumb drives, > for example.

BTRFS is broken with discard request?

2010-06-15 Thread Kyungmin Park
Deal all, Now I got test the btrfs with discard option on MMC (implemented discard request). but I can't test the iozone benchmark test program with I/O error. Of course I disabled the discard option. it works well. and discard handling is tested with VFAT well. So I think BTRFS discard request s