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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2010-10-28 00:34:08 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-28 03:03:12 +0200
commit9b1bf12d5d51bca178dea21b04a0805e29d60cf1 (patch)
tree902a2c0e5882a2152da59a589958d6426dc84643 /firmware
parentsignals: annotate lock context change on ptrace_stop() (diff)
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signals: move cred_guard_mutex from task_struct to signal_struct
Oleg Nesterov pointed out we have to prevent multiple-threads-inside-exec itself and we can reuse ->cred_guard_mutex for it. Yes, concurrent execve() has no worth. Let's move ->cred_guard_mutex from task_struct to signal_struct. It naturally prevent multiple-threads-inside-exec. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'firmware')
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