MFC of 263062:
Avoid segment fault when attempting to clean up cylinder group
buffer cache.
PR: 187221
Submitted by: Petr Lampa <lampa@fit.vutbr.cz>
Obtained from: Petr Lampa <lampa@fit.vutbr.cz>
MFC after: 1 week
MFC of 262488:
Arguments for malloc and calloc should be size_t, not int.
Use proper bounds check when trying to free cached memory.
Spotted by: Xin Li
Tested by: Dmitry Sivachenko
MFC after: 2 weeks
git-svn-id: svn://svn.freebsd.org/base/stable/10@263629
ccf9f872-aa2e-dd11-9fc8-
001c23d0bc1f