linux

iv/linux

History

Michał Kępień 7bea605692 mtd: add ECC error accounting for each read request

Extend struct mtd_req_stats with two new fields holding the number of
corrected bitflips and uncorrectable errors detected during a read
operation.  This is a prerequisite for ultimately passing those counters
to user space, where they can be useful to applications for making
better-informed choices about moving data around.

Unlike 'max_bitflips' (which is set - in a common code path - to the
return value of a function called while the MTD device's mutex is held),
these counters have to be maintained in each MTD driver which defines
the '_read_oob' callback because the statistics need to be calculated
while the MTD device's mutex is held.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220629125737.14418-4-kernel@kempniu.pl

2022-09-21 10:38:09 +02:00

bcm47xxsflash.c

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06 09:45:59 +01:00

bcm47xxsflash.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

block2mtd.c

mtd: move from strlcpy with unused retval to strscpy

2022-09-19 18:14:53 +02:00

docg3.c

mtd: add ECC error accounting for each read request