The patch titled
flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix update
has been added to the -mm tree. Its filename is
flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix-update.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix update
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
* add pte_present_exec_user()
* remove pte_user
* fixed comments.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-ia64/pgtable.h | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff -puN include/asm-ia64/pgtable.h~flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix-update include/asm-ia64/pgtable.h
--- a/include/asm-ia64/pgtable.h~flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix-update
+++ a/include/asm-ia64/pgtable.h
@@ -297,7 +297,6 @@ ia64_phys_addr_valid (unsigned long addr
/*
* The following have defined behavior only work if pte_present() is true.
*/
-#define pte_user(pte) ((pte_val(pte) & _PAGE_PL_MASK) == _PAGE_PL_3)
#define pte_write(pte) ((unsigned) (((pte_val(pte) & _PAGE_AR_MASK) >> _PAGE_AR_SHIFT) - 2) <= 4)
#define pte_exec(pte) ((pte_val(pte) & _PAGE_AR_RX) != 0)
#define pte_dirty(pte) ((pte_val(pte) & _PAGE_D) != 0)
@@ -324,14 +323,20 @@ ia64_phys_addr_valid (unsigned long addr
* set_pte() is also called by the kernel, but we can expect that the kernel
* flushes icache explicitly if necessary.
*/
+#define pte_present_exec_user(pte)\
+ ((pte_val(pte) & (_PAGE_P | _PAGE_PL_MASK | _PAGE_AR_RX)) == \
+ (_PAGE_P | _PAGE_PL_3 | _PAGE_AR_RX))
+
extern void __ia64_sync_icache_dcache(pte_t pteval);
static inline void set_pte(pte_t *ptep, pte_t pteval)
{
- if (pte_present(pteval) &&// swap out ?
- pte_exec(pteval) && // flush only new executable page.
- pte_user(pteval) && // ignore kernel page
- (!pte_present(*ptep) ||// do_no_page or swap in, migration,
- pte_pfn(*ptep) != pte_pfn(pteval))) // do_wp_page(), page copy
+ /* page is present && page is user && page is executable
+ * && (page swapin or new page or page migraton
+ * || copy_on_write with page copying.)
+ */
+ if (pte_present_exec_user(pteval) &&
+ (!pte_present(*ptep) ||
+ pte_pfn(*ptep) != pte_pfn(pteval)))
/* load_module() calles flush_icache_range() explicitly*/
__ia64_sync_icache_dcache(pteval);
*ptep = pteval;
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
sparsemem-clean-up-spelling-error-in-comments.patch
sparsemem-record-when-a-section-has-a-valid-mem_map.patch
generic-virtual-memmap-support-for-sparsemem.patch
generic-virtual-memmap-support-for-sparsemem-fix.patch
x86_64-sparsemem_vmemmap-2m-page-size-support.patch
x86_64-sparsemem_vmemmap-2m-page-size-support-ensure-end-of-section-memmap-is-initialised.patch
x86_64-sparsemem_vmemmap-vmemmap-x86_64-convert-to-new-helper-based-initialisation.patch
ia64-sparsemem_vmemmap-16k-page-size-support.patch
ia64-sparsemem_vmemmap-16k-page-size-support-convert-to-new-helper-based-initialisation.patch
sparc64-sparsemem_vmemmap-support.patch
sparc64-sparsemem_vmemmap-support-vmemmap-convert-to-new-config-options.patch
ppc64-sparsemem_vmemmap-support.patch
ppc64-sparsemem_vmemmap-support-convert-to-new-config-options.patch
memoryless-nodes-generic-management-of-nodemasks-for-various-purposes.patch
memoryless-nodes-introduce-mask-of-nodes-with-memory.patch
memoryless-nodes-introduce-mask-of-nodes-with-memory-fix.patch
memoryless-nodes-fix-interleave-behavior-for-memoryless-nodes.patch
memoryless-nodes-oom-use-n_high_memory-map-instead-of-constructing-one-on-the-fly.patch
memoryless-nodes-no-need-for-kswapd.patch
memoryless-nodes-slab-support.patch
memoryless-nodes-slub-support.patch
memoryless-nodes-uncached-allocator-updates.patch
memoryless-nodes-allow-profiling-data-to-fall-back-to-other-nodes.patch
memoryless-nodes-update-memory-policy-and-page-migration.patch
memoryless-nodes-add-n_cpu-node-state.patch
memoryless-nodes-drop-one-memoryless-node-boot-warning.patch
memoryless-nodes-fix-gfp_thisnode-behavior.patch
memoryless-nodes-use-n_high_memory-for-cpusets.patch
flush-cache-before-installing-new-page-at-migraton.patch
flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte.patch
flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix.patch
flush-icache-before-set_pte-on-ia64-flush-icache-at-set_pte-fix-update.patch
memory-unplug-v7-memory-hotplug-cleanup.patch
memory-unplug-v7-page-isolation.patch
memory-unplug-v7-page-offline.patch
memory-unplug-v7-ia64-interface.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
