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lightnvm: prevent target type module removal when in use

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If target type module e.g. pblk here is unloaded (rmmod) while module
is in use (after creating target) system crashes.  We fix this by
using module API refcnt.

Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Rakesh Pandit 2017-10-13 14:45:50 +02:00 • committed by Jens Axboe
parent 47bc227dee
commit 900148296b
3 changed files with 6 additions and 0 deletions
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1
include/linux/lightnvm.h
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@ -460,6 +460,7 @@ struct nvm_tgt_type {
/* For internal use */
struct list_head list;
struct module *owner;
};
extern struct nvm_tgt_type *nvm_find_target_type(const char *, int);