lists: add "const" qualifier to first arg of list_splice() operations

[linux-2.6-omap-h63xx.git] / include / linux / mtd / mtd.h

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 783fc983417c9786c8d99eecca5dd19a36e4895d..0a13bb35f044fa249c58f54e0ceab9bbe9e01f23 100644 (file)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -152,6 +152,15 @@ struct mtd_info {
        int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
        int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
 
+       /* In blackbox flight recorder like scenarios we want to make successful
+          writes in interrupt context. panic_write() is only intended to be
+          called when its known the kernel is about to panic and we need the
+          write to succeed. Since the kernel is not going to be running for much
+          longer, this function can break locks and delay to ensure the write
+          succeeds (but not sleep). */
+
+       int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
        int (*read_oob) (struct mtd_info *mtd, loff_t from,
                         struct mtd_oob_ops *ops);
        int (*write_oob) (struct mtd_info *mtd, loff_t to,