kernel_optimize_test/fs/proc
Vasiliy Kulikov 99663be772 proc: fix mount -t proc -o AAA
The proc_parse_options() call from proc_mount() runs only once at boot
time.  So on any later mount attempt, any mount options are ignored
because ->s_root is already initialized.

As a consequence, "mount -o <options>" will ignore the options.  The
only way to change mount options is "mount -o remount,<options>".

To fix this, parse the mount options unconditionally.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Tested-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-05 15:25:50 -07:00
..
array.c procfs: fix /proc/statm 2012-03-28 17:14:35 -07:00
base.c procfs: mark thread stack correctly in proc/<pid>/maps 2012-03-21 17:54:58 -07:00
cmdline.c
consoles.c console: rename acquire/release_console_sem() to console_lock/unlock() 2011-01-26 10:50:06 +10:00
cpuinfo.c
devices.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
generic.c switch procfs to umode_t use 2012-01-03 22:54:56 -05:00
inode.c switch open-coded instances of d_make_root() to new helper 2012-03-20 21:29:35 -04:00
internal.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl 2012-03-23 18:08:58 -07:00
interrupts.c
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
kcore.c fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static 2012-03-23 16:58:42 -07:00
kmsg.c
loadavg.c
Makefile ns: proc files for namespace naming policy. 2011-05-10 14:31:44 -07:00
meminfo.c fs/proc/meminfo.c: fix compilation error 2011-12-09 07:50:28 -08:00
mmu.c
namespaces.c fs/proc/namespaces.c: prevent crash when ns_entries[] is empty 2012-03-28 17:14:37 -07:00
nommu.c
page.c pagemap: export KPF_THP 2012-03-21 17:54:57 -07:00
proc_devtree.c of/flattree: Drop an uninteresting message to pr_debug level 2011-03-02 13:45:18 -07:00
proc_net.c switch procfs to umode_t use 2012-01-03 22:54:56 -05:00
proc_sysctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl 2012-03-23 18:08:58 -07:00
proc_tty.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
root.c proc: fix mount -t proc -o AAA 2012-04-05 15:25:50 -07:00
softirqs.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
stat.c procfs: add num_to_str() to speed up /proc/stat 2012-03-23 16:58:42 -07:00
task_mmu.c pagemap: remove remaining unneeded spin_lock() 2012-03-29 14:06:43 -07:00
task_nommu.c procfs: mark thread stack correctly in proc/<pid>/maps 2012-03-21 17:54:58 -07:00
uptime.c Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip 2011-12-19 19:23:15 +01:00
version.c
vmcore.c fadump: Introduce cleanup routine to invalidate /proc/vmcore. 2012-02-23 10:50:02 +11:00