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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2008-10-07 14:00:12 -0400 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2008-10-13 09:47:43 +1100 |
| commit | 92562927826fceb2f8e69c89e28161b8c1e0b125 (patch) | |
| tree | e44f22406ea4d3753a4834feed7e7d271da28ab8 /mm/shmem.c | |
| parent | 93db628658197aa46bd7f83d429908b6f187ec9c (diff) | |
| download | lwn-92562927826fceb2f8e69c89e28161b8c1e0b125.tar.gz lwn-92562927826fceb2f8e69c89e28161b8c1e0b125.zip | |
integrity: special fs magic
Discussion on the mailing list questioned the use of these
magic values in userspace, concluding these values are already
exported to userspace via statfs and their correct/incorrect
usage is left up to the userspace application.
- Move special fs magic number definitions to magic.h
- Add magic.h include
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'mm/shmem.c')
| -rw-r--r-- | mm/shmem.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index 04fb4f1ab88e..bf66d0191baf 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -50,14 +50,12 @@ #include <linux/migrate.h> #include <linux/highmem.h> #include <linux/seq_file.h> +#include <linux/magic.h> #include <asm/uaccess.h> #include <asm/div64.h> #include <asm/pgtable.h> -/* This magic number is used in glibc for posix shared memory */ -#define TMPFS_MAGIC 0x01021994 - #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long)) #define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE) #define BLOCKS_PER_PAGE (PAGE_CACHE_SIZE/512) |