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authorJosh Poimboeuf <jpoimboe@redhat.com>2015-12-03 16:33:26 -0600
committerJiri Kosina <jkosina@suse.cz>2015-12-04 22:51:07 +0100
commitb56b36ee6751abe7fb3890681e86fc8de2122953 (patch)
treeb95a1d26730cf2389214e303199c25bc160134c9 /drivers/media/common/saa7146/saa7146_video.c
parentfc284d631894d8673d229fad92762b66c9875cab (diff)
download96b-common-b56b36ee6751abe7fb3890681e86fc8de2122953.tar.gz
livepatch: Cleanup module page permission changes
Calling set_memory_rw() and set_memory_ro() for every iteration of the loop in klp_write_object_relocations() is messy, inefficient, and error-prone. Change all the read-only pages to read-write before the loop and convert them back to read-only again afterwards. Suggested-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/media/common/saa7146/saa7146_video.c')
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