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authorOleg Nesterov <oleg@tv-sign.ru>2006-09-29 02:01:12 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 09:18:21 -0700
commit28324d1df646521256e83389244adcce98e89ff2 (patch)
treeaaa81642185611b4996daeba7d65e6b3c3eb05a7 /mm/swapfile.c
parentc394cc9fbb367f87faa2228ec2eabacd2d4701c6 (diff)
[PATCH] select_bad_process(): kill a bogus PF_DEAD/TASK_DEAD check
The only one usage of TASK_DEAD outside of last schedule path, select_bad_process: for_each_task(p) { if (!p->mm) continue; ... if (p->state == TASK_DEAD) continue; ... TASK_DEAD state is set at the end of do_exit(), this means that p->mm was already set == NULL by exit_mm(), so this task was already rejected by 'if (!p->mm)' above. Note also that the caller holds tasklist_lock, this means that p can't pass exit_notify() and then set TASK_DEAD when p->mm != NULL. Also, remove open-coded is_init(). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/swapfile.c')
0 files changed, 0 insertions, 0 deletions