mtd: request locked pages when mmap'ing the FIS table, cures random segfaults in table rewrite until http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2d4dc890b5c8fabd818a8586607e6843c4375e62 is added.

SVN-Revision: 21823

package/mtd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=mtd
-PKG_RELEASE:=12
+PKG_RELEASE:=13
 
 PKG_BUILD_DIR := $(KERNEL_BUILD_DIR)/$(PKG_NAME)
 STAMP_PREPARED := $(STAMP_PREPARED)_$(call confvar,CONFIG_MTD_REDBOOT_PARTS)

package/mtd/src/fis.c

@@ -77,7 +77,7 @@ fis_open(void)
 		goto error;
 
 	fis_erasesize = erasesize;
-	desc = mmap(NULL, erasesize, PROT_READ|PROT_WRITE, MAP_SHARED, fis_fd, 0);
+	desc = mmap(NULL, erasesize, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_LOCKED, fis_fd, 0);
 	if (desc == MAP_FAILED)
 		goto error;