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authorOleg Nesterov <oleg@redhat.com>2010-05-26 14:43:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:46 -0700
commitffdf91856c812646aa276711fa7e3ad80b00764a (patch)
tree0a6d0e6e1edb78aee411c3fb302c43acf34dc7d6 /kernel/fork.c
parentd30fda355188272430d3865db2ff9e24b4135ae3 (diff)
ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checks
Preparation to make task->signal immutable, no functional changes. It doesn't matter which pointer we check under tasklist to ensure the task was not released, ->signal or ->sighand. But we are going to make ->signal refcountable, change the code to use ->sighand. Note: this code doesn't need this check and tasklist_lock at all, it should be converted to use lock_task_sighand(). And, the code under SIGNAL_STOP_STOPPED check looks wrong. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Roland McGrath <roland@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
0 files changed, 0 insertions, 0 deletions