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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-12 12:49:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-12 12:49:27 +0200 |
| commit | 1389ac4b976abdc0555280dfc1aa2c3abcc19641 (patch) | |
| tree | 1ec51aa0b1e33201f6f4f3bebc657f9ec65f8539 /mm/highmem.c | |
| parent | 69e13ad56f9e2cd81c4f8bfd6267211c10c14c08 (diff) | |
| parent | fd048088306656824958e7783ffcee27e241b361 (diff) | |
Merge branch 'linus' into x86/signal
Conflicts:
arch/x86/kernel/signal_64.c
Diffstat (limited to 'mm/highmem.c')
| -rw-r--r-- | mm/highmem.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/highmem.c b/mm/highmem.c index e16e1523b68..b36b83b920f 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -70,6 +70,7 @@ static DECLARE_WAIT_QUEUE_HEAD(pkmap_map_wait); static void flush_all_zero_pkmaps(void) { int i; + int need_flush = 0; flush_cache_kmaps(); @@ -101,8 +102,10 @@ static void flush_all_zero_pkmaps(void) &pkmap_page_table[i]); set_page_address(page, NULL); + need_flush = 1; } - flush_tlb_kernel_range(PKMAP_ADDR(0), PKMAP_ADDR(LAST_PKMAP)); + if (need_flush) + flush_tlb_kernel_range(PKMAP_ADDR(0), PKMAP_ADDR(LAST_PKMAP)); } /** |