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authorThomas Gleixner <tglx@cruncher.tec.linutronix.de>2006-05-25 09:57:31 +0200
committerDavid Woodhouse <dwmw2@infradead.org>2006-05-25 12:45:27 +0100
commit7fac464868ec5d80019fa549b8b4516dd1dc9d5c (patch)
tree0b8003852a430e91c31481bf6bb8cec66993199b
parent7314e9e7d57293c58b3e10a25a8a1d9328444187 (diff)
downloadop-kernel-dev-7fac464868ec5d80019fa549b8b4516dd1dc9d5c.zip
op-kernel-dev-7fac464868ec5d80019fa549b8b4516dd1dc9d5c.tar.gz
[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: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--include/linux/mtd/mtd.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index b8ad634..41a984d 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -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;
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