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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2017-04-14 07:45:16 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-27 22:20:27 +1000 |
| commit | fd893fe56a1307d348fe5c077eb9b654288ce0c5 (patch) | |
| tree | 6c2f204a6203864550dce7f2fd6be8565a6a0f00 /arch/powerpc | |
| parent | 6c01bbd2cf8cbc1906818b402b10bca2283c4e7e (diff) | |
| download | linux-fd893fe56a1307d348fe5c077eb9b654288ce0c5.tar.bz2 | |
powerpc/mm: Fix missing page attributes in page table dump
On some targets, _PAGE_RW is 0 and this is _PAGE_RO which is used.
There is also _PAGE_SHARED that is missing.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/dump_linuxpagetables.c | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index fb8380a2d8d5..85bc9875c3be 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -13,6 +13,7 @@ #define _PAGE_BIT_SWAP_TYPE 0 #define _PAGE_RO 0 +#define _PAGE_SHARED 0 #define _PAGE_EXEC 0x00001 /* execute permission */ #define _PAGE_WRITE 0x00002 /* write access allowed */ diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c index bb136ac6ac55..ec4906994726 100644 --- a/arch/powerpc/mm/dump_linuxpagetables.c +++ b/arch/powerpc/mm/dump_linuxpagetables.c @@ -121,8 +121,13 @@ static const struct flag_info flag_array[] = { .set = "user", .clear = " ", }, { +#if _PAGE_RO == 0 .mask = _PAGE_RW, .val = _PAGE_RW, +#else + .mask = _PAGE_RO, + .val = 0, +#endif .set = "rw", .clear = "ro", }, { @@ -222,6 +227,10 @@ static const struct flag_info flag_array[] = { .mask = _PAGE_SPECIAL, .val = _PAGE_SPECIAL, .set = "special", + }, { + .mask = _PAGE_SHARED, + .val = _PAGE_SHARED, + .set = "shared", } }; |