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authorAlexey Dobriyan <adobriyan@openvz.org>2007-02-10 01:44:39 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-11 10:51:24 -0800
commit3ee75ac3c0f4904633322b7d9b111566fbc4a7d3 (patch)
tree2456021d63e95e92ce6bfae2e1f9d83c1843319d /include
parent8b6312f4dcc1efe7975731b6c47dd134282bd9ac (diff)
[PATCH] sysctl_{,ms_}jiffies: fix oldlen semantics
currently it's 1) if *oldlenp == 0, don't writeback anything 2) if *oldlenp >= table->maxlen, don't writeback more than table->maxlen bytes and rewrite *oldlenp don't look at underlying type granularity 3) if 0 < *oldlenp < table->maxlen, *cough* string sysctls don't writeback more than *oldlenp bytes. OK, that's because sizeof(char) == 1 int sysctls writeback anything in (0, table->maxlen] range Though accept integers divisible by sizeof(int) for writing. sysctl_jiffies and sysctl_ms_jiffies don't writeback anything but sizeof(int), which violates 1) and 2). So, make sysctl_jiffies and sysctl_ms_jiffies accept a) *oldlenp == 0, not doing writeback b) *oldlenp >= sizeof(int), writing one integer. -EINVAL still returned for *oldlenp == 1, 2, 3. Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions