diff options
| author | Johan Hovold <johan@kernel.org> | 2014-09-15 18:07:37 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2014-09-15 18:10:34 +0200 |
| commit | 4b7154ba70bb20a3c024faabdd2bc207b550a813 (patch) | |
| tree | 99a6e1204ec5deaca27bcbfc75ca16d3633433f2 /mm/percpu-vm.c | |
| parent | adceac14166da8c466223a35ec59c4a4adeef976 (diff) | |
| parent | 9e82bf014195d6f0054982c463575cdce24292be (diff) | |
Merge tag 'v3.17-rc5' into usb-next
USB fixes in Linux 3.17-rc5 are needed to build on top of for 3.18.
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'mm/percpu-vm.c')
| -rw-r--r-- | mm/percpu-vm.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c index 3707c71ae4cd..51108165f829 100644 --- a/mm/percpu-vm.c +++ b/mm/percpu-vm.c @@ -108,7 +108,7 @@ static int pcpu_alloc_pages(struct pcpu_chunk *chunk, int page_start, int page_end) { const gfp_t gfp = GFP_KERNEL | __GFP_HIGHMEM | __GFP_COLD; - unsigned int cpu; + unsigned int cpu, tcpu; int i; for_each_possible_cpu(cpu) { @@ -116,14 +116,23 @@ static int pcpu_alloc_pages(struct pcpu_chunk *chunk, struct page **pagep = &pages[pcpu_page_idx(cpu, i)]; *pagep = alloc_pages_node(cpu_to_node(cpu), gfp, 0); - if (!*pagep) { - pcpu_free_pages(chunk, pages, populated, - page_start, page_end); - return -ENOMEM; - } + if (!*pagep) + goto err; } } return 0; + +err: + while (--i >= page_start) + __free_page(pages[pcpu_page_idx(cpu, i)]); + + for_each_possible_cpu(tcpu) { + if (tcpu == cpu) + break; + for (i = page_start; i < page_end; i++) + __free_page(pages[pcpu_page_idx(tcpu, i)]); + } + return -ENOMEM; } /** @@ -263,6 +272,7 @@ err: __pcpu_unmap_pages(pcpu_chunk_addr(chunk, tcpu, page_start), page_end - page_start); } + pcpu_post_unmap_tlb_flush(chunk, page_start, page_end); return err; } |