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| author | Steve French <sfrench@us.ibm.com> | 2011-01-10 02:18:16 +0300 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2011-01-10 02:18:16 +0300 |
| commit | acc6f11272ce4f77c40b1a6292eb198fd6aaf8c3 (patch) | |
| tree | 2da3a61b6726707a89f1cf93446aabd2fb00e1f0 /mm/util.c | |
| parent | 7e12eddb73d4f288b0339ee13832a34d6bc4fd90 (diff) | |
| parent | 0c21e3aaf6ae85bee804a325aa29c325209180fd (diff) | |
| download | linux-acc6f11272ce4f77c40b1a6292eb198fd6aaf8c3.tar.xz | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
fs/cifs/dir.c
Diffstat (limited to 'mm/util.c')
| -rw-r--r-- | mm/util.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/mm/util.c b/mm/util.c index 73dac81e9f78..f126975ef23e 100644 --- a/mm/util.c +++ b/mm/util.c @@ -186,27 +186,6 @@ void kzfree(const void *p) } EXPORT_SYMBOL(kzfree); -int kern_ptr_validate(const void *ptr, unsigned long size) -{ - unsigned long addr = (unsigned long)ptr; - unsigned long min_addr = PAGE_OFFSET; - unsigned long align_mask = sizeof(void *) - 1; - - if (unlikely(addr < min_addr)) - goto out; - if (unlikely(addr > (unsigned long)high_memory - size)) - goto out; - if (unlikely(addr & align_mask)) - goto out; - if (unlikely(!kern_addr_valid(addr))) - goto out; - if (unlikely(!kern_addr_valid(addr + size - 1))) - goto out; - return 1; -out: - return 0; -} - /* * strndup_user - duplicate an existing string from user space * @s: The string to duplicate |