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(parent: 2aab385) | patch
dm raid: round region_size to power of two
authorJonathan Brassow <jbrassow@redhat.com>
Fri, 21 Dec 2012 20:23:33 +0000 (20:23 +0000)
committerAlasdair G Kergon <agk@redhat.com>
Fri, 21 Dec 2012 20:23:33 +0000 (20:23 +0000)
commit3a0f9aaee02857609d79b20c809c02a8b7c39d06
tree274ae68dfc2d955bb8f9a771388947e947b359b4tree | snapshot
parent2aab38502d0e1bf6cf98183769e35a9ff999dcb1commit | diff
dm raid: round region_size to power of two

If the user does not supply a bitmap region_size to the dm raid target,
a reasonable size is computed automatically.  If this is not a power of 2,
the md code will report an error later.

This patch catches the problem early and rounds the region_size to the
next power of two.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm-raid.c diff | blob | history
Linux kernel for KaRo TX COM modules