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| author | Mikulas Patocka <mpatocka@redhat.com> | 2013-07-10 23:41:16 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2013-07-10 23:41:16 +0100 |
| commit | 220cd058d9b66b940105e0a32324f06d557deba7 (patch) | |
| tree | aa6a9ca04528df50e3af0782458ac3bf4648f6a4 | |
| parent | b1bf2de07271932326af847a3c6a01fdfd29d4be (diff) | |
| download | linux-stable-220cd058d9b66b940105e0a32324f06d557deba7.tar.gz linux-stable-220cd058d9b66b940105e0a32324f06d557deba7.tar.bz2 linux-stable-220cd058d9b66b940105e0a32324f06d557deba7.zip | |
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>
| -rw-r--r-- | drivers/md/dm-bufio.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-ioctl.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 0387e05cdb98..9588b864d311 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -349,7 +349,7 @@ static void *alloc_buffer_data(struct dm_bufio_client *c, gfp_t gfp_mask, if (gfp_mask & __GFP_NORETRY) noio_flag = memalloc_noio_save(); - ptr = __vmalloc(c->block_size, gfp_mask, PAGE_KERNEL); + ptr = __vmalloc(c->block_size, gfp_mask | __GFP_HIGHMEM, PAGE_KERNEL); if (gfp_mask & __GFP_NORETRY) memalloc_noio_restore(noio_flag); diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 81a79b739e97..12f04868e899 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1646,7 +1646,7 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl *param_kern if (!dmi) { unsigned noio_flag; noio_flag = memalloc_noio_save(); - dmi = __vmalloc(param_kernel->data_size, GFP_NOIO | __GFP_REPEAT | __GFP_HIGH, PAGE_KERNEL); + dmi = __vmalloc(param_kernel->data_size, GFP_NOIO | __GFP_REPEAT | __GFP_HIGH | __GFP_HIGHMEM, PAGE_KERNEL); memalloc_noio_restore(noio_flag); if (dmi) *param_flags |= DM_PARAMS_VMALLOC; |