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881adb8535
linux/fs/proc
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Alexey Dobriyan 881adb8535 proc: always do ->release 
Current two-stage scheme of removing PDE emphasizes one bug in proc:

		open
				rmmod
				remove_proc_entry
		close

->release won't be called because ->proc_fops were cleared.  In simple
cases it's small memory leak.

For every ->open, ->release has to be done.  List of openers is introduced
which is traversed at remove_proc_entry() if neeeded.

Discussions with Al long ago (sigh).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:44 -07:00
..
array.c capabilities: remain source compatible with 32-bit raw legacy capability support. 2008-05-31 16:36:16 -07:00
base.c Security: split proc ptrace checking into read vs. attach 2008-07-14 15:01:47 +10:00
generic.c proc: always do ->release 2008-07-25 10:53:44 -07:00
inode-alloc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
inode.c proc: always do ->release 2008-07-25 10:53:44 -07:00
internal.h proc: always do ->release 2008-07-25 10:53:44 -07:00
kcore.c elf: use ELF_CORE_EFLAGS for kcore ELF header flags 2008-07-25 10:53:42 -07:00
kmsg.c move proc_kmsg_operations to fs/proc/internal.h 2008-07-25 10:53:44 -07:00
Makefile [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
mmu.c fs/proc/mmu.c: headers butchery 2007-10-17 08:42:48 -07:00
nommu.c proc: switch to proc_create() 2008-04-29 08:06:17 -07:00
proc_devtree.c [POWERPC] Make struct property's value a void * 2007-04-13 03:55:18 +10:00
proc_misc.c vmallocinfo: add NUMA information 2008-07-24 10:47:17 -07:00
proc_net.c netns: make get_proc_net() static 2008-07-22 14:19:19 -07:00
proc_sysctl.c sysctl: add the ->permissions callback on the ctl_table_root 2008-04-29 08:06:23 -07:00
proc_tty.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
root.c proc: introduce proc_create_data to setup de->data 2008-04-29 08:06:20 -07:00
task_mmu.c proc: fix /proc/*/pagemap some more 2008-07-22 09:59:41 -07:00
task_nommu.c Security: split proc ptrace checking into read vs. attach 2008-07-14 15:01:47 +10:00
vmcore.c aout: remove unnecessary inclusions of {asm, linux}/a.out.h 2008-02-08 09:22:30 -08:00