diff options
| author |   David S. Miller <davem@davemloft.net> | 2019-06-17 19:48:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-17 20:20:36 -0700 |
| commit | 13091aa30535b719e269f20a7bc34002bf5afae5 (patch) | |
| tree | bd17956c3ce606a119fadbd43bfa1c0c10006984 /arch/mips/mm/mmap.c | |
| parent | Merge branch 'UDP-GSO-audit-tests' (diff) | |
| parent | Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff) | |
| download | linux-dev-13091aa30535b719e269f20a7bc34002bf5afae5.tar.xz linux-dev-13091aa30535b719e269f20a7bc34002bf5afae5.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes,
nothing really interesting to report.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/mm/mmap.c')
| -rw-r--r-- | arch/mips/mm/mmap.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c index 2f616ebeb7e0..50ee7213b432 100644 --- a/arch/mips/mm/mmap.c +++ b/arch/mips/mm/mmap.c @@ -201,8 +201,13 @@ unsigned long arch_randomize_brk(struct mm_struct *mm) return ret; } -int __virt_addr_valid(const volatile void *kaddr) +bool __virt_addr_valid(const volatile void *kaddr) { + unsigned long vaddr = (unsigned long)vaddr; + + if ((vaddr < PAGE_OFFSET) || (vaddr >= MAP_BASE)) + return false; + return pfn_valid(PFN_DOWN(virt_to_phys(kaddr))); } EXPORT_SYMBOL_GPL(__virt_addr_valid); |