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| author | Ram Pai <linuxram@us.ibm.com> | 2018-07-17 15:51:06 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-07-24 13:35:09 +0200 |
| commit | fe6a2804e65969a574377bdb3605afb79e6091a9 (patch) | |
| tree | 91ded5205f3b862ecfaf5d1e8c7000e288886c0c /arch | |
| parent | powerpc/pkeys: Save the pkey registers before fork (diff) | |
| download | linux-fe6a2804e65969a574377bdb3605afb79e6091a9.tar.xz linux-fe6a2804e65969a574377bdb3605afb79e6091a9.zip | |
powerpc/pkeys: Fix calculation of total pkeys.
Total number of pkeys calculation is off by 1. Fix it.
Fixes: 4fb158f65ac5 ("powerpc: track allocation status of all pkeys")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/mm/pkeys.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c index 8f0052b15b84..04f65974e97b 100644 --- a/arch/powerpc/mm/pkeys.c +++ b/arch/powerpc/mm/pkeys.c @@ -92,7 +92,7 @@ int pkey_initialize(void) * arch-neutral code. */ pkeys_total = min_t(int, pkeys_total, - (ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT)); + ((ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT)+1)); if (!pkey_mmu_enabled() || radix_enabled() || !pkeys_total) static_branch_enable(&pkey_disabled); |