Re: [PATCH] Minor ext3 speedup

2005-01-16 Thread Andrew Morton
Matthew Wilcox [EMAIL PROTECTED] wrote: On Thu, Jan 13, 2005 at 01:15:06PM +0100, Jan Kara wrote: Attached patch removes unnecessary division and modulo from ext3 code paths. It reduces (according to oprofile) the CPU usage measurably under a dbench load (see description of the patch

Re: [RFC] shared subtrees

2005-01-16 Thread J. Bruce Fields
On Thu, Jan 13, 2005 at 10:18:51PM +, Al Viro wrote: 6. mount --move prohibited if what we are moving is in some p-node, otherwise we move as usual to intended mountpoint and create copies for everything that gets propagation from there (as we would do for rbind). Why this

Re: [RFC] shared subtrees

2005-01-16 Thread Al Viro
On Sun, Jan 16, 2005 at 11:02:13AM -0500, J. Bruce Fields wrote: On Thu, Jan 13, 2005 at 10:18:51PM +, Al Viro wrote: 6. mount --move prohibited if what we are moving is in some p-node, otherwise we move as usual to intended mountpoint and create copies for everything that gets

Re: [RFC] shared subtrees

2005-01-16 Thread J. Bruce Fields
On Sun, Jan 16, 2005 at 06:06:56PM +, Al Viro wrote: On Sun, Jan 16, 2005 at 11:02:13AM -0500, J. Bruce Fields wrote: On Thu, Jan 13, 2005 at 10:18:51PM +, Al Viro wrote: 6. mount --move prohibited if what we are moving is in some p-node, otherwise we move as usual to

Re: [RFC] shared subtrees

2005-01-16 Thread Al Viro
On Sun, Jan 16, 2005 at 01:42:09PM -0500, J. Bruce Fields wrote: On Sun, Jan 16, 2005 at 06:06:56PM +, Al Viro wrote: On Sun, Jan 16, 2005 at 11:02:13AM -0500, J. Bruce Fields wrote: On Thu, Jan 13, 2005 at 10:18:51PM +, Al Viro wrote: 6. mount --move prohibited if