On Tue, Mar 19, 2013 at 02:13:38PM +0100, Lukas Czerner wrote: > Currently when inserting extent in ext4_ext_insert_extent() we would > only try to to see if we can append new extent to the found extent. If > we can not, then we proceed with adding new extent into the extent tree, > but then possibly merging it back again. > > We can avoid this situation by trying to append and prepend new extent > to the existing ones. However since the new extent can be on either > sides of the existing extent, we have to pick the right extent to try to > append/prepend to. > > This patch adds the conditions to pick the right extent to > append/prepend to and adds the actual prepending condition as well. This > will also eliminate the need to use "reserved" block for possibly > growing extent tree. > > Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx> Thanks, added to the dev branch for testing. - Ted -- 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
