diff options
author | Kumar Gala <galak@freescale.com> | 2005-04-16 18:24:20 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:24:20 -0400 |
commit | 7a1e335085ead05da08f791340f58b493126894d (patch) | |
tree | 5b1a763061d68caef26ec85d55404d868bab7a74 /include/asm-m32r/errno.h | |
parent | 0c541b4406a68e74d94ddb667c69d9e03bce8681 (diff) |
[PATCH] ppc32: Fix pte_update for 64-bit PTEs
While the existing pte_update code handled atomically modifying a 64-bit PTE,
it did not return all 64-bits of the PTE before it was modified. This causes
problems in some places that expect the full PTE to be returned, like
ptep_get_and_clear().
Created a new pte_update function that is conditional on CONFIG_PTE_64BIT. It
atomically reads the low PTE word which all PTE flags are required to be in
and returns a premodified full 64-bit PTE.
Since we now have an explicit 64-bit PTE version of pte_update we can also
remove the hack that existed to get the low PTE word regardless of size.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-m32r/errno.h')
0 files changed, 0 insertions, 0 deletions