Eric Lee / smarc-ti-linux-kernel

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Commit 220cd058d9b66b940105e0a32324f06d557deba7

Authored by Mikulas Patocka
Committed by Alasdair G Kergon
1 parent b1bf2de072
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

dm: use __GFP_HIGHMEM in __vmalloc 

Use __GFP_HIGHMEM in __vmalloc.

Pages allocated with __vmalloc can be allocated in high memory that is not
directly mapped to kernel space, so use __GFP_HIGHMEM just like vmalloc
does. This patch reduces memory pressure slightly because pages can be
allocated in the high zone.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

Showing 2 changed files with 2 additions and 2 deletions Side-by-side Diff

drivers/md/dm-bufio.c
Diff comments   View file @ 220cd05
... ... @@ -349,7 +349,7 @@
349 349 if (gfp_mask & __GFP_NORETRY)
350 350 noio_flag = memalloc_noio_save();
351 351  
352   - ptr = __vmalloc(c->block_size, gfp_mask, PAGE_KERNEL);
  352 + ptr = __vmalloc(c->block_size, gfp_mask | __GFP_HIGHMEM, PAGE_KERNEL);
353 353  
354 354 if (gfp_mask & __GFP_NORETRY)
355 355 memalloc_noio_restore(noio_flag);
drivers/md/dm-ioctl.c
Diff comments   View file @ 220cd05
... ... @@ -1646,7 +1646,7 @@
1646 1646 if (!dmi) {
1647 1647 unsigned noio_flag;
1648 1648 noio_flag = memalloc_noio_save();
1649   - dmi = __vmalloc(param_kernel->data_size, GFP_NOIO | __GFP_REPEAT | __GFP_HIGH, PAGE_KERNEL);
  1649 + dmi = __vmalloc(param_kernel->data_size, GFP_NOIO | __GFP_REPEAT | __GFP_HIGH | __GFP_HIGHMEM, PAGE_KERNEL);
1650 1650 memalloc_noio_restore(noio_flag);
1651 1651 if (dmi)
1652 1652 *param_flags |= DM_PARAMS_VMALLOC;