Alexander Aring 13296b64a8 fs: dlm: fix configfs memory leak ... [ Upstream commit 3d2825c8c6105b0f36f3ff72760799fa2e71420e ] This patch fixes the following memory detected by kmemleak and umount gfs2 filesystem which removed the last lockspace: unreferenced object 0xffff9264f482f600 (size 192): comm "dlm_controld", pid 325, jiffies 4294690276 (age 48.136s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 6e 6f 64 65 73 00 00 00 ........nodes... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000060481d7>] make_space+0x41/0x130 [<000000008d905d46>] configfs_mkdir+0x1a2/0x5f0 [<00000000729502cf>] vfs_mkdir+0x155/0x210 [<000000000369bcf1>] do_mkdirat+0x6d/0x110 [<00000000cc478a33>] do_syscall_64+0x33/0x40 [<00000000ce9ccf01>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 The patch just remembers the "nodes" entry pointer in space as I think it's created as subdirectory when parent "spaces" is created. In function drop_space() we will lost the pointer reference to nds because configfs_remove_default_groups(). However as this subdirectory is always available when "spaces" exists it will just be freed when "spaces" will be freed. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-30 10:38:28 +01:00
..
ast.c	dlm: Don't swamp the CPU with callbacks queued during recovery	2019-02-12 19:46:58 +01:00
ast.h
config.c	fs: dlm: fix configfs memory leak	2020-10-30 10:38:28 +01:00
config.h
debug_fs.c	dlm: Improve a size determination in table_seq_start()	2017-08-07 11:23:09 -05:00
dir.c
dir.h
dlm_internal.h	dlm: remove BUG() before panic()	2020-06-25 15:32:56 +02:00
Kconfig
lock.c	dlm: memory leaks on error path in dlm_user_request()	2019-01-13 09:51:07 +01:00
lock.h
lockspace.c	dlm: Fix kobject memleak	2020-08-19 08:15:02 +02:00
lockspace.h
lowcomms.c	dlm: check if workqueues are NULL before flushing/destroying	2019-07-31 07:27:07 +02:00
lowcomms.h
lvb_table.h
main.c	dlm: audit and remove any unnecessary uses of module.h	2016-10-19 11:00:03 -05:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
member.c	dlm: fix possible call to kfree() for non-initialized pointer	2019-12-13 08:51:14 +01:00
member.h
memory.c	dlm: NULL check before kmem_cache_destroy is not needed	2019-12-13 08:52:07 +01:00
memory.h
midcomms.c
midcomms.h
netlink.c	dlm for 4.10	2016-12-14 08:31:37 -08:00
plock.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
rcom.c	dlm: remove dlm_send_rcom_lookup_dump	2017-10-09 09:29:31 -05:00
rcom.h	dlm: remove dlm_send_rcom_lookup_dump	2017-10-09 09:29:31 -05:00
recover.c	DLM: retry rcom when dlm_wait_function is timed out.	2017-09-25 12:45:21 -05:00
recover.h
recoverd.c	dlm: recheck kthread_should_stop() before schedule()	2017-09-25 12:48:10 -05:00
recoverd.h
requestqueue.c
requestqueue.h
user.c	dlm: fix invalid cluster name warning	2019-12-13 08:52:23 +01:00
user.h
util.c
util.h