A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

dm mpath: verify __pg_init_all_paths locking assumptions at runtime

Browse source 
Verify at runtime that __pg_init_all_paths() is called with
multipath.lock held if lockdep is enabled.

Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
This commit is contained in:
Bart Van Assche 2017-04-27 10:11:22 -07:00 • committed by Mike Snitzer
commit b194679fac
1 changed files with 2 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/md/dm-mpath.c
View file

@ -298,6 +298,8 @@ static int __pg_init_all_paths(struct multipath *m)
struct pgpath *pgpath;
unsigned long pg_init_delay = 0;
lockdep_assert_held(&m->lock);
if (atomic_read(&m->pg_init_in_progress) || test_bit(MPATHF_PG_INIT_DISABLED, &m->flags))
return 0;