Eric W. Biederman cd6a3ce9ec [PATCH] proc: Close the race of a process dying durning lookup ... proc_lookup and task exiting are not synchronized, although some of the previous code may have suggested that. Every time before we reuse a dentry namei.c calls d_op->derevalidate which prevents us from reusing a stale dcache entry. Unfortunately it does not prevent us from returning a stale dcache entry. This race has been explicitly plugged in proc_pid_lookup but there is nothing to confine it to just that proc lookup function. So to prevent the race I call revalidate explictily in all of the proc lookup functions after I call d_add, and report an error if the revalidate does not succeed. Years ago Al Viro did something similar but those changes got lost in the churn. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-06-26 09:58:25 -07:00
..
array.c
base.c	[PATCH] proc: Close the race of a process dying durning lookup	2006-06-26 09:58:25 -07:00
generic.c	[PATCH] mark f_ops const in the inode	2006-03-28 09:16:05 -08:00
inode-alloc.txt
inode.c	[PATCH] proc: Replace proc_inode.type with proc_inode.fd	2006-06-26 09:58:24 -07:00
internal.h	[PATCH] proc: Move proc_maps_operations into task_mmu.c	2006-06-26 09:58:24 -07:00
kcore.c	[PATCH] Make most file operations structs in fs/ const	2006-03-28 09:16:06 -08:00
kmsg.c	[PATCH] Make most file operations structs in fs/ const	2006-03-28 09:16:06 -08:00
Makefile
mmu.c
nommu.c
proc_devtree.c
proc_misc.c	[PATCH] Simplify proc/devices and fix early termination regression	2006-03-31 12:18:53 -08:00
proc_tty.c
root.c	[PATCH] VFS: Permit filesystem to override root dentry on mount	2006-06-23 07:42:45 -07:00
task_mmu.c	[PATCH] proc: Move proc_maps_operations into task_mmu.c	2006-06-26 09:58:24 -07:00
task_nommu.c	[PATCH] proc: Move proc_maps_operations into task_mmu.c	2006-06-26 09:58:24 -07:00
vmcore.c	[PATCH] kdump proc vmcore size oveflow fix	2006-04-11 06:18:42 -07:00