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Merge branch 'kmap_atomic' of git://github.com/congwang/linux

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Pull kmap_atomic cleanup from Cong Wang.

It's been in -next for a long time, and it gets rid of the (no longer
used) second argument to k[un]map_atomic().

Fix up a few trivial conflicts in various drivers, and do an "evil
merge" to catch some new uses that have come in since Cong's tree.

* 'kmap_atomic' of git://github.com/congwang/linux: (59 commits)
  feature-removal-schedule.txt: schedule the deprecated form of kmap_atomic() for removal
  highmem: kill all __kmap_atomic() [swarren@nvidia.com: highmem: Fix ARM build break due to __kmap_atomic rename]
  drbd: remove the second argument of k[un]map_atomic()
  zcache: remove the second argument of k[un]map_atomic()
  gma500: remove the second argument of k[un]map_atomic()
  dm: remove the second argument of k[un]map_atomic()
  tomoyo: remove the second argument of k[un]map_atomic()
  sunrpc: remove the second argument of k[un]map_atomic()
  rds: remove the second argument of k[un]map_atomic()
  net: remove the second argument of k[un]map_atomic()
  mm: remove the second argument of k[un]map_atomic()
  lib: remove the second argument of k[un]map_atomic()
  power: remove the second argument of k[un]map_atomic()
  kdb: remove the second argument of k[un]map_atomic()
  udf: remove the second argument of k[un]map_atomic()
  ubifs: remove the second argument of k[un]map_atomic()
  squashfs: remove the second argument of k[un]map_atomic()
  reiserfs: remove the second argument of k[un]map_atomic()
  ocfs2: remove the second argument of k[un]map_atomic()
  ntfs: remove the second argument of k[un]map_atomic()
  ...
This commit is contained in:
Linus Torvalds
2012-03-21 09:40:26 -07:00
parent 69a7aebcf0 317b6e1282
commit 9f3938346a
180 changed files with 921 additions and 969 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/debug/kdb/kdb_support.c
View File

@@ -384,9 +384,9 @@ static int kdb_getphys(void *res, unsigned long addr, size_t size)
if (!pfn_valid(pfn))
return 1;
page = pfn_to_page(pfn);
vaddr = kmap_atomic(page, KM_KDB);
vaddr = kmap_atomic(page);
memcpy(res, vaddr + (addr & (PAGE_SIZE - 1)), size);
kunmap_atomic(vaddr, KM_KDB);
kunmap_atomic(vaddr);
return 0;
}

28
kernel/power/snapshot.c
View File

@@ -1000,20 +1000,20 @@ static void copy_data_page(unsigned long dst_pfn, unsigned long src_pfn)
s_page = pfn_to_page(src_pfn);
d_page = pfn_to_page(dst_pfn);
if (PageHighMem(s_page)) {
src = kmap_atomic(s_page, KM_USER0);
dst = kmap_atomic(d_page, KM_USER1);
src = kmap_atomic(s_page);
dst = kmap_atomic(d_page);
do_copy_page(dst, src);
kunmap_atomic(dst, KM_USER1);
kunmap_atomic(src, KM_USER0);
kunmap_atomic(dst);
kunmap_atomic(src);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
* data modified by kmap_atomic()
*/
safe_copy_page(buffer, s_page);
dst = kmap_atomic(d_page, KM_USER0);
dst = kmap_atomic(d_page);
copy_page(dst, buffer);
kunmap_atomic(dst, KM_USER0);
kunmap_atomic(dst);
} else {
safe_copy_page(page_address(d_page), s_page);
}
@@ -1728,9 +1728,9 @@ int snapshot_read_next(struct snapshot_handle *handle)
*/
void *kaddr;
kaddr = kmap_atomic(page, KM_USER0);
kaddr = kmap_atomic(page);
copy_page(buffer, kaddr);
kunmap_atomic(kaddr, KM_USER0);
kunmap_atomic(kaddr);
handle->buffer = buffer;
} else {
handle->buffer = page_address(page);
@@ -2014,9 +2014,9 @@ static void copy_last_highmem_page(void)
if (last_highmem_page) {
void *dst;
dst = kmap_atomic(last_highmem_page, KM_USER0);
dst = kmap_atomic(last_highmem_page);
copy_page(dst, buffer);
kunmap_atomic(dst, KM_USER0);
kunmap_atomic(dst);
last_highmem_page = NULL;
}
}
@@ -2309,13 +2309,13 @@ swap_two_pages_data(struct page *p1, struct page *p2, void *buf)
{
void *kaddr1, *kaddr2;
kaddr1 = kmap_atomic(p1, KM_USER0);
kaddr2 = kmap_atomic(p2, KM_USER1);
kaddr1 = kmap_atomic(p1);
kaddr2 = kmap_atomic(p2);
copy_page(buf, kaddr1);
copy_page(kaddr1, kaddr2);
copy_page(kaddr2, buf);
kunmap_atomic(kaddr2, KM_USER1);
kunmap_atomic(kaddr1, KM_USER0);
kunmap_atomic(kaddr2);
kunmap_atomic(kaddr1);
}
/**