]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: d248901) | patch
dm space map disk: optimise sm_disk_dec_block
authorJoe Thornber <ejt@redhat.com>
Fri, 9 Aug 2013 13:19:32 +0000 (14:19 +0100)
committerMike Snitzer <snitzer@redhat.com>
Sat, 9 Nov 2013 23:20:24 +0000 (18:20 -0500)
commit192ae1e73d475c5721ac86821451072dd6f2550a
tree1d15b08035b871d9fd2fab9df882fdef68330ab1tree | snapshot
parentd248901999f468b78f5df223b28d52ee31479ceecommit | diff
dm space map disk: optimise sm_disk_dec_block

Don't waste time spotting blocks that have been allocated and then freed
in the same transaction.

The extra lookup is expensive, and I don't think it really gives us much.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/persistent-data/dm-space-map-disk.c diff | blob | history
Linux Kernel Source Tree.