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mtd: char: Get rid of Big MTD Lock

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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
This commit is contained in:
Alexander Sverdlin
2021-02-17 22:18:45 +01:00
committed by Miquel Raynal
parent ecd400ce5f
commit 1ad5528882
3 changed files with 10 additions and 6 deletions
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include/linux/mtd/mtd.h
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@@ -229,6 +229,7 @@ struct mtd_part {
*/
struct mtd_master {
struct mutex partitions_lock;
struct mutex chrdev_lock;
unsigned int suspended : 1;
};