The patch titled
Subject: mm: remove remaining references to NUMA hinting bits and helpers -fix
has been added to the -mm tree. Its filename is
mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix.patch
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From: Mel Gorman <mgorman@xxxxxxx>
Subject: mm: remove remaining references to NUMA hinting bits and helpers -fix
The patch "mm: remove remaining references to NUMA hinting bits and
helpers" was meant to remove NUMA hinting bits and helpers but broke
is_swap_pte. >From the original bug report
For at least the past couple of days tests of libhugetlbfs have
been hanging on mustang in the mlock test running ARMv8 defconfig
with both 32 bit and 64 bit userspace - after the mprotect test
(the one before it) we get no console output for several hours so
it appears that the test has deadlocked. The tail of the log is:
| find_path (2M: 64): PASS
| unlinked_fd (2M: 64): PASS
| readback (2M: 64): PASS
| truncate (2M: 64): PASS
| shared (2M: 64): PASS
| mprotect (2M: 64): PASS
This patch should address the problem and is a fix to the mmotm patch
mm-remove-remaining-references-to-numa-hinting-bits-and-helpers.patch
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
Reported-by: Mark Brown <broonie@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/swapops.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/swapops.h~mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix include/linux/swapops.h
--- a/include/linux/swapops.h~mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix
+++ a/include/linux/swapops.h
@@ -54,7 +54,7 @@ static inline pgoff_t swp_offset(swp_ent
/* check whether a pte points to a swap entry */
static inline int is_swap_pte(pte_t pte)
{
- return !pte_none(pte);
+ return !pte_none(pte) && !pte_present(pte);
}
#endif
_
Patches currently in -mm which might be from mgorman@xxxxxxx are
origin.patch
mm-page_alloc-place-zone_id-check-before-vm_bug_on_page-check.patch
mm-vmscan-wake-up-all-pfmemalloc-throttled-processes-at-once.patch
mm-numa-do-not-dereference-pmd-outside-of-the-lock-during-numa-hinting-fault.patch
mm-add-p-protnone-helpers-for-use-by-numa-balancing.patch
mm-convert-p_numa-users-to-p_protnone_numa.patch
ppc64-add-paranoid-warnings-for-unexpected-dsisr_protfault.patch
mm-convert-p_mknonnuma-and-remaining-page-table-manipulations.patch
mm-remove-remaining-references-to-numa-hinting-bits-and-helpers.patch
mm-remove-remaining-references-to-numa-hinting-bits-and-helpers-fix.patch
mm-numa-do-not-trap-faults-on-the-huge-zero-page.patch
x86-mm-restore-original-pte_special-check.patch
mm-numa-add-paranoid-check-around-pte_protnone_numa.patch
mm-numa-avoid-unnecessary-tlb-flushes-when-setting-numa-hinting-entries.patch
mm-set-page-pfmemalloc-in-prep_new_page.patch
mm-page_alloc-reduce-number-of-alloc_pages-functions-parameters.patch
mm-reduce-try_to_compact_pages-parameters.patch
mm-microoptimize-zonelist-operations.patch
mm-compaction-change-tracepoint-format-from-decimal-to-hexadecimal.patch
mm-compaction-enhance-tracepoint-output-for-compaction-begin-end.patch
mm-compaction-enhance-tracepoint-output-for-compaction-begin-end-v4.patch
mm-compaction-print-current-range-where-compaction-work.patch
mm-compaction-more-trace-to-understand-when-why-compaction-start-finish.patch
mm-compaction-add-tracepoint-to-observe-behaviour-of-compaction-defer.patch
mm-compaction-add-tracepoint-to-observe-behaviour-of-compaction-defer-v4.patch
mm-vmscan-fix-the-page-state-calculation-in-too_many_isolated.patch
mm-vmscan-fix-the-page-state-calculation-in-too_many_isolated-fix.patch
mm-when-stealing-freepages-also-take-pages-created-by-splitting-buddy-page.patch
mm-always-steal-split-buddies-in-fallback-allocations.patch
mm-more-aggressive-page-stealing-for-unmovable-allocations.patch
vmstat-do-not-use-deferrable-delayed-work-for-vmstat_update.patch
mm-incorporate-read-only-pages-into-transparent-huge-pages.patch
mm-incorporate-read-only-pages-into-transparent-huge-pages-v4.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
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