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integrity: special fs magic

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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 <[email protected]>
Reviewed-by: James Morris <[email protected]>
Signed-off-by: James Morris <[email protected]>
This commit is contained in:
Mimi Zohar 2008-10-07 14:00:12 -04:00 • committed by James Morris
commit 9256292782
4 changed files with 7 additions and 7 deletions
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4
mm/shmem.c
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@ -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)