From: Matt Fleming Date: Mon, 22 Oct 2012 14:51:45 +0000 (+0100) Subject: efivarfs: Add unique magic number X-Git-Tag: v3.12-rc1~1777^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=91716322d834cba34f4a7ed5e4a39673eb90862b;p=kernel%2Fkernel-generic.git efivarfs: Add unique magic number Using pstore's superblock magic number is no doubt going to cause problems in the future. Give efivarfs its own magic number. Acked-by: Jeremy Kerr Signed-off-by: Matt Fleming --- diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 2c04434..3b0cf9a 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -991,7 +991,7 @@ int efivarfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; - sb->s_magic = PSTOREFS_MAGIC; + sb->s_magic = EFIVARFS_MAGIC; sb->s_op = &efivarfs_ops; sb->s_time_gran = 1; diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h index e15192c..12f68c7 100644 --- a/include/uapi/linux/magic.h +++ b/include/uapi/linux/magic.h @@ -27,6 +27,7 @@ #define ISOFS_SUPER_MAGIC 0x9660 #define JFFS2_SUPER_MAGIC 0x72b6 #define PSTOREFS_MAGIC 0x6165676C +#define EFIVARFS_MAGIC 0xde5e81e4 #define MINIX_SUPER_MAGIC 0x137F /* minix v1 fs, 14 char names */ #define MINIX_SUPER_MAGIC2 0x138F /* minix v1 fs, 30 char names */