mtd: char: Get rid of Big MTD Lock
Get rid of central chrdev MTD lock, which prevents simultaneous operations
on completely independent physical MTD chips. Replace it with newly
introduced per-master mutex.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210217211845.43364-2-alexander.sverdlin@nokia.com
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 2d6423d..0b09597 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -773,6 +773,7 @@ static void mtd_set_dev_defaults(struct mtd_info *mtd)
INIT_LIST_HEAD(&mtd->partitions);
mutex_init(&mtd->master.partitions_lock);
+ mutex_init(&mtd->master.chrdev_lock);
}
/**