[PATCH 3/5] xfs: reduce ilock hold times in xfs_setattr_size

[Dave Chinner]

On Mon, Mar 26, 2012 at 05:14:24PM -0400, Christoph Hellwig wrote:
> We do not need the ilock for most checks done in the beginning of
> xfs_setattr_size.  Replace the long critical section before starting the
> transaction with a smaller one around xfs_zero_eof and an optional one
> inside xfs_qm_dqattach that isn't entered unless using quotas.  While
> this isn't a big optimization for xfs_setattr_size itself it will allow
> pushing the ilock into xfs_zero_eof itself later.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Looks sane to me.

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com