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Oleg Nesterov 24336eaeec pids: introduce change_pid() helper ... Based on Eric W. Biederman's idea. Without tasklist_lock held task_session()/task_pgrp() can return NULL if the caller races with setprgp()/setsid() which does detach_pid() + attach_pid(). This can happen even if task == current. Intoduce the new helper, change_pid(), which should be used instead. This way the caller always sees the special pid != NULL, either old or new. Also change the prototype of attach_pid(), it always returns 0 and nobody check the returned value. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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acpi	…
asm-alpha	kernel: Move arches to use common unaligned access	17 years ago
asm-arm	pxafb: preliminary smart panel interface support	17 years ago
asm-avr32	kernel: Move arches to use common unaligned access	17 years ago
asm-blackfin	kernel: Move arches to use common unaligned access	17 years ago
asm-cris	kernel: Move arches to use common unaligned access	17 years ago
asm-frv	kernel: Move arches to use common unaligned access	17 years ago
asm-generic	kernel: Move arches to use common unaligned access	17 years ago
asm-h8300	kernel: Move arches to use common unaligned access	17 years ago
asm-ia64	signals: ia64 renumber TIF_RESTORE_SIGMASK	17 years ago
asm-m32r	kernel: Move arches to use common unaligned access	17 years ago
asm-m68k	kernel: Move arches to use common unaligned access	17 years ago
asm-m68knommu	kernel: Move arches to use common unaligned access	17 years ago
asm-mips	kernel: Move arches to use common unaligned access	17 years ago
asm-mn10300	kernel: Move arches to use common unaligned access	17 years ago
asm-parisc	kernel: Move arches to use common unaligned access	17 years ago
asm-powerpc	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	17 years ago
asm-ppc	…
asm-s390	signals: s390: renumber TIF_RESTORE_SIGMASK	17 years ago
asm-sh	kernel: Move arches to use common unaligned access	17 years ago
asm-sparc	kernel: Move arches to use common unaligned access	17 years ago
asm-sparc64	kernel: Move arches to use common unaligned access	17 years ago
asm-um	kernel: Move arches to use common unaligned access	17 years ago
asm-v850	kernel: Move arches to use common unaligned access	17 years ago
asm-x86	signals: x86 TS_RESTORE_SIGMASK	17 years ago
asm-xtensa	kernel: Move arches to use common unaligned access	17 years ago
crypto	…
keys	…
linux	pids: introduce change_pid() helper	17 years ago
math-emu	…
media	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb	17 years ago
mtd	…
net	Merge branch 'audit.b50' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current	17 years ago
pcmcia	…
rdma	IB: expand ib_umem_get() prototype	17 years ago
rxrpc	…
scsi	IB/iser: Count FMR alignment violations per session	17 years ago
sound	[ALSA] Add MPU401_INFO_NO_ACK bitflag	17 years ago
video	…
xen	…
Kbuild	…