Squashfs: initrd support (b8fed87d) · Commits · e / devices / android_kernel_oneplus_sm8150

init/do_mounts_rd.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@
		#include <linux/string.h>

		#include "do_mounts.h"
		#include "../fs/squashfs/squashfs_fs.h"

		int __initdata rd_prompt = 1;/* 1 = prompt for RAM disk, 0 = don't prompt */

		@@ -41,6 +42,7 @@ static int __init crd_load(int in_fd, int out_fd);
		* ext2
		* romfs
		* cramfs
		* squashfs
		* gzip
		*/
		static int __init
		@@ -51,6 +53,7 @@ identify_ramdisk_image(int fd, int start_block)
		struct ext2_super_block *ext2sb;
		struct romfs_super_block *romfsb;
		struct cramfs_super *cramfsb;
		struct squashfs_super_block *squashfsb;
		int nblocks = -1;
		unsigned char *buf;

		@@ -62,6 +65,7 @@ identify_ramdisk_image(int fd, int start_block)
		ext2sb = (struct ext2_super_block *) buf;
		romfsb = (struct romfs_super_block *) buf;
		cramfsb = (struct cramfs_super *) buf;
		squashfsb = (struct squashfs_super_block *) buf;
		memset(buf, 0xe5, size);

		/*
		@@ -99,6 +103,16 @@ identify_ramdisk_image(int fd, int start_block)
		goto done;
		}

		/* squashfs is at block zero too */
		if (le32_to_cpu(squashfsb->s_magic) == SQUASHFS_MAGIC) {
		printk(KERN_NOTICE
		"RAMDISK: squashfs filesystem found at block %d\n",
		start_block);
		nblocks = (le64_to_cpu(squashfsb->bytes_used) + BLOCK_SIZE - 1)
		>> BLOCK_SIZE_BITS;
		goto done;
		}

		/*
		* Read block 1 to test for minix and ext2 superblock
		*/