KOSAKI Motohiro bd6daba909 procfs: make errno values consistent when open pident vs exit(2) race occurs ... proc_pident_instantiate() has following call flow. proc_pident_lookup() proc_pident_instantiate() proc_pid_make_inode() And, proc_pident_lookup() has following error handling. const struct pid_entry *p, *last; error = ERR_PTR(-ENOENT); if (!task) goto out_no_task; Then, proc_pident_instantiate should return ENOENT too when racing against exit(2) occur. EINAL has two bad reason. - it implies caller is wrong. bad the race isn't caller's mistake. - man 2 open don't explain EINVAL. user often don't handle it. Note: Other proc_pid_make_inode() caller already use ENOENT properly. Acked-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-05-29 08:40:02 -07:00
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array.c	proc: avoid information leaks to non-privileged processes	2009-05-04 15:14:23 -07:00
base.c	procfs: make errno values consistent when open pident vs exit(2) race occurs	2009-05-29 08:40:02 -07:00
cmdline.c
cpuinfo.c
devices.c
generic.c	proc 1/2: do PDE usecounting even for ->read_proc, ->write_proc	2009-03-31 01:14:27 +04:00
inode.c	proc 2/2: remove struct proc_dir_entry::owner	2009-03-31 01:14:44 +04:00
internal.h	proc 1/2: do PDE usecounting even for ->read_proc, ->write_proc	2009-03-31 01:14:27 +04:00
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c	mm: fix Committed_AS underflow on large NR_CPUS environment	2009-05-02 15:36:10 -07:00
mmu.c
nommu.c	trivial: fix typo "kernal" -> "kernel"	2009-03-30 15:21:57 +02:00
page.c	proc: fix kflags to uflags copying in /proc/kpageflags	2009-03-11 07:43:33 -07:00
proc_devtree.c
proc_net.c	proc: stop using BKL	2009-01-05 12:27:44 +03:00
proc_sysctl.c	constify dentry_operations: procfs	2009-03-27 14:44:01 -04:00
proc_tty.c	proc tty: remove struct tty_operations::read_proc	2009-04-01 08:59:10 -07:00
root.c	Convert obvious places to deactivate_locked_super()	2009-05-09 10:49:40 -04:00
stat.c	[S390] /proc/stat idle field for idle cpus	2009-04-23 13:58:17 +02:00
task_mmu.c	pagemap: require aligned-length, non-null reads of /proc/pid/pagemap	2009-05-02 15:36:09 -07:00
task_nommu.c	nommu: fix typo vma->pg_off to vma->vm_pgoff	2009-04-08 10:21:44 -07:00
uptime.c	Revert "proc: revert /proc/uptime to ->read_proc hook"	2009-03-31 01:14:58 +04:00
version.c
vmcore.c	vmcore: remove saved_max_pfn check	2009-01-08 08:31:14 -08:00