On Wed, 23 Feb 2011, Ted Ts'o wrote: > On Tue, Feb 15, 2011 at 06:06:25PM +0100, Lukas Czerner wrote: > > Discard granularity tells us the minimum size of extent to be discarded. > > Use that information to adjust minlen properly in FITRIM code. Smaller > > extents will be ignored anyway, so we can optimize by not even trying to > > discard them. > > > > Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx> > > Applied to the ext4 patch queue, with a rewritten commit description. > > "Always write with a deep sympathy for the reader" > > - Ted > > ext4: Adjust minlen with discard_granularity in the FITRIM ioctl > > From: Lukas Czerner <lczerner@xxxxxxxxxx> > > Discard granularity tells us the minimum size of extent that can be > discard by the device. If the user supplies a minimum extent that > should be discarded (range.minlen) which is smaller than the discard > granularity, increase minlen to the discard granularity, since there's > no point submitting trim requests that the device will reject anyway. > > Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx> > Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> > Hi Ted, thanks for merging and for the description. My English still needs a lot of practice :) Thanks! -Lukas -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
