The patch titled
ia64: use bitmap_find_next_zero_area
has been added to the -mm tree. Its filename is
ia64-use-bitmap_find_next_zero_area.patch
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------------------------------------------------------
Subject: ia64: use bitmap_find_next_zero_area
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN arch/ia64/sn/pci/tioca_provider.c~ia64-use-bitmap_find_next_zero_area arch/ia64/sn/pci/tioca_provider.c
--- a/arch/ia64/sn/pci/tioca_provider.c~ia64-use-bitmap_find_next_zero_area
+++ a/arch/ia64/sn/pci/tioca_provider.c
@@ -9,6 +9,7 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
+#include <linux/bitmap.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/addrs.h>
#include <asm/sn/io.h>
@@ -369,7 +370,7 @@ tioca_dma_d48(struct pci_dev *pdev, u64
static dma_addr_t
tioca_dma_mapped(struct pci_dev *pdev, unsigned long paddr, size_t req_size)
{
- int i, ps, ps_shift, entry, entries, mapsize, last_entry;
+ int ps, ps_shift, entry, entries, mapsize;
u64 xio_addr, end_xio_addr;
struct tioca_common *tioca_common;
struct tioca_kernel *tioca_kern;
@@ -410,23 +411,13 @@ tioca_dma_mapped(struct pci_dev *pdev, u
map = tioca_kern->ca_pcigart_pagemap;
mapsize = tioca_kern->ca_pcigart_entries;
- entry = find_first_zero_bit(map, mapsize);
- while (entry < mapsize) {
- last_entry = find_next_bit(map, mapsize, entry);
-
- if (last_entry - entry >= entries)
- break;
-
- entry = find_next_zero_bit(map, mapsize, last_entry);
- }
-
- if (entry > mapsize) {
+ entry = bitmap_find_next_zero_area(map, mapsize, 0, entries, 0);
+ if (entry >= mapsize) {
kfree(ca_dmamap);
goto map_return;
}
- for (i = 0; i < entries; i++)
- set_bit(entry + i, map);
+ bitmap_set(map, entry, entries);
bus_addr = tioca_kern->ca_pciap_base + (entry * ps);
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
linux-next.patch
bitmap-introduce-bitmap_set-bitmap_clear-bitmap_find_next_zero_area.patch
iommu-helper-use-bitmap-library.patch
isp1362-hcd-use-bitmap_find_next_zero_area.patch
mlx4-use-bitmap_find_next_zero_area.patch
sparc-use-bitmap_find_next_zero_area.patch
ia64-use-bitmap_find_next_zero_area.patch
genalloc-use-bitmap_find_next_zero_area.patch
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