Commit 7fac4648 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by David Woodhouse
Browse files

[MTD] Add ECC statistics to struct mtd_info 



FLASH - especially NAND FLASH - will become less reliable
and bit flips more likely. Add an ECC statistics struct
to struct mtd_info to keep track of this.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 7314e9e7

include/linux/mtd/mtd.h

+14 −0
Original line number Diff line number Diff line
@@ -56,6 +56,17 @@ struct mtd_erase_region_info { 
	u_int32_t numblocks;		/* Number of blocks of erasesize in this region */

};



/**

 * struct mtd_ecc_stats - error correction status

 *

 * @corrected:	number of corrected bits

 * @failed:	number of uncorrectable errors

 */

struct mtd_ecc_stats {

	unsigned long corrected;

	unsigned long failed;

};



struct mtd_info {

	u_char type;

	u_int32_t flags;
@@ -153,6 +164,9 @@ struct mtd_info { 


	struct notifier_block reboot_notifier;  /* default mode before reboot */



	/* ECC status information */

	struct mtd_ecc_stats ecc_stats;



	void *priv;



	struct module *owner;