Colin Percival 93954c2da3 Check that blkfront devices have a non-zero number of sectors and a ... non-zero sector size. Such a device would be a virtual disk of zero bytes; clearly not useful, and not something we should try to attach. As a fortuitous side effect, checking that these values are non-zero here results in them not *becoming* zero later on the function. This odd behaviour began with r309124 (clang 3.9.0) but is challenging to debug; making any changes to this function whatsoever seems to affect the llvm optimizer behaviour enough to make the unexpected zeroing of the sector_size variable cease. PR: 215209 Security: The potential for variables to unexpectedly become zero has worrying consequences for security in general, but not so much in this particular context.		2016-12-13 06:54:13 +00:00
..
blkfront.c	Check that blkfront devices have a non-zero number of sectors and a	2016-12-13 06:54:13 +00:00
block.h	sys/dev: minor spelling fixes.	2016-05-03 03:41:25 +00:00