Re: tiny e2fsprogs fix, bitmaps question

2007-04-18 Thread Theodore Tso
On Wed, Apr 18, 2007 at 12:54:44AM -0600, Andreas Dilger wrote: [ I'm quoting out of order here, and cc'ing the linux-ext4 list with permission since I think the topics under discussion have a more general interest. --Ted] Just reading the updated e2fsck.conf.5 man page, and noticed

Re: Performance degradation with FFSB between 2.6.20 and 2.6.21-rc7

2007-04-18 Thread Andrew Morton
On Wed, 18 Apr 2007 15:54:00 +0200 Valerie Clement [EMAIL PROTECTED] wrote: Running benchmark tests (FFSB) on an ext4 filesystem, I noticed a performance degradation (about 15-20 percent) in sequential write tests between 2.6.19-rc6 and 2.6.21-rc4 kernels. I ran the same tests on ext3

Re: Ext3 behavior on power failure

2007-04-18 Thread Bruno Wolff III
On Wed, Mar 28, 2007 at 09:17:27 -0400, John Anthony Kazos Jr. [EMAIL PROTECTED] wrote: If you fsync() your data, you are guaranteed that also your data are safely on disk when fsync returns. So what is the question here? Pardon a newbie's intrusion, but I do know this isn't true. There is

Re: [RFC] add FIEMAP ioctl to efficiently map file allocation

2007-04-18 Thread Andreas Dilger
On Apr 16, 2007 18:01 +1000, Timothy Shimmin wrote: --On 12 April 2007 5:05:50 AM -0600 Andreas Dilger [EMAIL PROTECTED] wrote: struct fiemap_extent { __u64 fe_start; /* starting offset in bytes */ __u64 fe_len; /* length in bytes */ } struct

Re: [RFC] add FIEMAP ioctl to efficiently map file allocation

2007-04-18 Thread Andreas Dilger
On Apr 16, 2007 21:22 +1000, David Chinner wrote: On Thu, Apr 12, 2007 at 05:05:50AM -0600, Andreas Dilger wrote: struct fiemap_extent { __u64 fe_start; /* starting offset in bytes */ __u64 fe_len; /* length in bytes */ } struct fiemap {