Theodore Ts'o cccd147a57 ext4: optimize ext4_writepage() for attempted 4k delalloc writes
In cases where the file system block size is the same as the page
size, and ext4_writepage() is asked to write out a page which is
either has the unwritten bit set in the extent tree, or which does not
yet have a block assigned due to delayed allocation, we can bail out
early and, unlocking the page earlier and avoiding a round trip
through ext4_bio_write_page() with the attendant calls to
set_page_writeback() and redirty_page_for_writeback().

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-10-03 10:49:23 -04:00
..
2015-09-03 12:57:48 -07:00
2015-09-08 15:35:28 -07:00
2015-08-16 12:35:44 -07:00
2015-09-11 12:23:51 -07:00
2015-08-13 12:32:04 -06:00
2015-09-07 14:02:24 -07:00
2015-09-07 14:02:24 -07:00
2015-08-13 12:32:04 -06:00
2015-09-08 15:35:28 -07:00
2015-08-13 12:32:04 -06:00
2015-08-12 15:28:45 -05:00
2015-08-31 16:27:25 -04:00
2015-09-04 16:54:41 -07:00
2015-08-13 12:32:04 -06:00