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authorOleg Nesterov <oleg@redhat.com>2013-04-30 15:28:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 17:04:07 -0700
commit12eaaf309a798973d215f7f21aa5a67a760ed7c8 (patch)
tree6be40c0ec42f7cf8eb5d09c31e1f36cc21499720 /Documentation/gpio.txt
parent830e0fc967a7ee5013d5d1cf6a3cea71a8868466 (diff)
downloadlinux-12eaaf309a798973d215f7f21aa5a67a760ed7c8.tar.bz2
set_task_comm: kill the pointless memset() + wmb()
set_task_comm() does memset() + wmb() before strlcpy(). This buys nothing and to add to the confusion, the comment is wrong. - We do not need memset() to be "safe from non-terminating string reads", the final char is always zero and we never change it. - wmb() is paired with nothing, it cannot prevent from printing the mixture of the old/new data unless the reader takes the lock. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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