]> nv-tegra.nvidia Code Review - linux-2.6.git/commit
deny partial write for loop dev fd
authorDmitry Monakhov <dmonakhov@sw.ru>
Tue, 16 Oct 2007 08:25:02 +0000 (01:25 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 16 Oct 2007 16:42:55 +0000 (09:42 -0700)
commit8268f5a7415d914fc855a86aa2284ac819dc6b2e
tree13628a6d3cb31f04472c4cccdc741979ecdf0ad0
parentafddba49d18f346e5cc2938b6ed7c512db18ca68
deny partial write for loop dev fd

Partial write can be easily supported by LO_CRYPT_NONE mode, but it is not
easy in LO_CRYPT_CRYPTOAPI case, because of its block nature.  I don't know
who still used cryptoapi, but theoretically it is possible.  So let's leave
things as they are.  Loop device doesn't support partial write before
Nick's "write_begin/write_end" patch set, and let's it behave the same way
after.

Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/block/loop.c