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    SubjectSubject: [PATCH 15/16] Squashfs: initrd support
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    Date

    Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
    ---
    init/do_mounts_rd.c | 14 ++++++++++++++
    1 files changed, 14 insertions(+), 0 deletions(-)

    diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
    index fedef93..30086a7 100644
    --- a/init/do_mounts_rd.c
    +++ b/init/do_mounts_rd.c
    @@ -5,6 +5,7 @@
    #include <linux/ext2_fs.h>
    #include <linux/romfs_fs.h>
    #include <linux/cramfs_fs.h>
    +#include <linux/squashfs_fs.h>
    #include <linux/initrd.h>
    #include <linux/string.h>

    @@ -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
    */
    --
    1.5.2.5


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