raid5-cache: add trim support for log
authorShaohua Li <shli@fb.com>
Fri, 9 Oct 2015 04:54:06 +0000 (21:54 -0700)
committerNeilBrown <neilb@suse.com>
Sun, 1 Nov 2015 02:48:29 +0000 (13:48 +1100)
commit4b482044d24f3db2e11607d0a18f64b3a326972d
treeaaa53c2f74e98baec8af07194ffa6005df095b0e
parent9efdca16e0182eca489a519f576019fd9c0c1b25
raid5-cache: add trim support for log

Since superblock is updated infrequently, we do a simple trim of log
disk (a synchronous trim)

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>
drivers/md/raid5-cache.c