The patch titled pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix has been added to the -mm tree. Its filename is pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Cc: Louis Rilling <Louis.Rilling@xxxxxxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Pavel Emelyanov <xemul@xxxxxxxxxx> Cc: Roland McGrath <roland@xxxxxxxxxx> Cc: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/sched.h | 2 -- 1 file changed, 2 deletions(-) diff -puN include/linux/sched.h~pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix include/linux/sched.h --- a/include/linux/sched.h~pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix +++ a/include/linux/sched.h @@ -1453,9 +1453,7 @@ static inline struct pid *task_tgid(stru * Without tasklist or rcu lock it is not safe to dereference * the result of task_pgrp/task_session even if task == current, * we can race with another thread doing sys_setsid/sys_setpgid. - * */ - static inline struct pid *task_pgrp(struct task_struct *task) { return task->group_leader->pids[PIDTYPE_PGID].pid; _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are origin.patch kprobes-fix-module-compilation-error-with-config_kprobes=n.patch i-need-old-gcc.patch linux-next.patch linux-next-git-rejects.patch next-remove-localversion.patch thinkpad-acpi-split-delayed-leds-stuff-clean-up-code-checkpatch-fixes.patch drivers-consolidate-driver_probe_done-loops-into-one-place-fix.patch drivers-consolidate-driver_probe_done-loops-into-one-place-checkpatch-fixes.patch clocksource-pass-clocksource-to-read-callback.patch drivers-net-mlx4-profilec-fix-min-warning.patch pci-quirks-unhide-overflow-device-on-i828675p-pe-chipsets.patch regulator-minor-cleanup-of-virtual-consumer-fix.patch raw-fix-rawctl-compat-ioctls-breakage-on-amd64-and-itanic.patch scsi-dpt_i2o-is-bust-on-ia64.patch nommu-fix-a-number-of-issues-with-the-per-mm-vma-patch.patch page_fault-retry-with-nopage_retry.patch page_fault-retry-with-nopage_retry-fix-3-fix.patch mm-add-proc-controls-for-pdflush-threads-fix.patch mm-add-proc-controls-for-pdflush-threads-fix-fix.patch proc-pid-maps-dont-show-pgoff-of-pure-anon-vmas-checkpatch-fixes.patch rtc-convert-leap_year-into-an-inline.patch rtc-add-platform-driver-for-efi-fix.patch pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix.patch nilfs2-integrated-block-mapping-remove-nilfs-bmap-wrapper-macros-checkpatch-fixes.patch nilfs2-inode-operations-fix.patch nilfs2-pathname-operations-fix.patch nilfs2-super-block-operations-fix.patch reiser4.patch reiser4-remove-simple_prepare_write-usage-checkpatch-fixes.patch slab-leaks3-default-y.patch put_bh-debug.patch shrink_slab-handle-bad-shrinkers.patch getblk-handle-2tb-devices.patch getblk-handle-2tb-devices-fix.patch undeprecate-pci_find_device.patch notify_change-callers-must-hold-i_mutex.patch drivers-net-bonding-bond_sysfsc-suppress-uninitialized-var-warning.patch w1-build-fix.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html