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authorHugh Dickins <hughd@google.com>2012-03-28 14:42:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 17:14:35 -0700
commitd15cab975459fb6092eeba1be72c13621337784f (patch)
tree5c1d8d18c65a34eb738c97d75f2c44becdff1de3 /kernel
parent29fd66d289f2981e11c550f8b411a6d3d38be0cf (diff)
swapon: check validity of swap_flags
Most system calls taking flags first check that the flags passed in are valid, and that helps userspace to detect when new flags are supported. But swapon never did so: start checking now, to help if we ever want to support more swap_flags in future. It's difficult to get stray bits set in an int, and swapon is not widely used, so this is most unlikely to break any userspace; but we can just revert if it turns out to do so. Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions