diff options
| author | Upinder Malhi <umalhi@cisco.com> | 2014-01-09 14:48:45 -0800 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-01-14 00:44:46 -0800 |
| commit | c5f855e08a97edc107c4a3b73809ed629c1dcac1 (patch) | |
| tree | ead6f88f161884d02fc73070e6bee0b85b8042a2 /drivers/infiniband | |
| parent | 6a54d9f9a04ed35e6615a47974c1ef02ff3a62cb (diff) | |
| download | linux-c5f855e08a97edc107c4a3b73809ed629c1dcac1.tar.bz2 | |
IB/usnic: Use for_each_sg instead of a for-loop
Use for_each_sg() instead of an explicit for-loop to iterate over
scatter-gather list.
Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/usnic/usnic_uiom.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index c841a752dbd0..ae6934c0d05a 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -80,13 +80,14 @@ static void usnic_uiom_put_pages(struct list_head *chunk_list, int dirty) { struct usnic_uiom_chunk *chunk, *tmp; struct page *page; + struct scatterlist *sg; int i; dma_addr_t pa; list_for_each_entry_safe(chunk, tmp, chunk_list, list) { - for (i = 0; i < chunk->nents; i++) { - page = sg_page(&chunk->page_list[i]); - pa = sg_phys(&chunk->page_list[i]); + for_each_sg(chunk->page_list, sg, chunk->nents, i) { + page = sg_page(sg); + pa = sg_phys(sg); if (dirty) set_page_dirty_lock(page); put_page(page); @@ -100,6 +101,7 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, int dmasync, struct list_head *chunk_list) { struct page **page_list; + struct scatterlist *sg; struct usnic_uiom_chunk *chunk; unsigned long locked; unsigned long lock_limit; @@ -165,11 +167,10 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, chunk->nents = min_t(int, ret, USNIC_UIOM_PAGE_CHUNK); sg_init_table(chunk->page_list, chunk->nents); - for (i = 0; i < chunk->nents; ++i) { - sg_set_page(&chunk->page_list[i], - page_list[i + off], - PAGE_SIZE, 0); - pa = sg_phys(&chunk->page_list[i]); + for_each_sg(chunk->page_list, sg, chunk->nents, i) { + sg_set_page(sg, page_list[i + off], + PAGE_SIZE, 0); + pa = sg_phys(sg); usnic_dbg("va: 0x%lx pa: %pa\n", cur_base + i*PAGE_SIZE, &pa); } |