| commit | 71f530c0cbe1d180d527ef4dec4013e8bcee37c3 | |
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | |
| Wed, 7 Apr 2010 04:39:36 +0000 (7 14:39 +1000) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 5 Jul 2010 18:22:20 +0000 (5 11:22 -0700) | ||
| tree | fc3634f108df9d82d54cf7f17c132c8902f9607b | treesnapshot (tar.gz zip) |
| parent | f7055d7153c523b65848e08ed7f8f27071d03730 | commitdiff |
powerpc: Fix ioremap_flags() with book3e pte definition
commit 55052eeca6d71d76f7c3f156c0501814d8e5e6d3 upstream.
We can't just clear the user read permission in book3e pte, because
that will also clear supervisor read permission. This surely isn't
desired. Fix the problem by adding the supervisor read back.
BenH: Slightly simplified the ifdef and applied to ppc64 too
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 55052eeca6d71d76f7c3f156c0501814d8e5e6d3 upstream.
We can't just clear the user read permission in book3e pte, because
that will also clear supervisor read permission. This surely isn't
desired. Fix the problem by adding the supervisor read back.
BenH: Slightly simplified the ifdef and applied to ppc64 too
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| arch/powerpc/mm/pgtable_32.c | diffblobblamehistory | |
| arch/powerpc/mm/pgtable_64.c | diffblobblamehistory |