The patch titled
fs-convert-core-functions-to-zero_user_page-pass-kmap-type
has been removed from the -mm tree. Its filename was
fs-convert-core-functions-to-zero_user_page-pass-kmap-type.patch
This patch was dropped because it was folded into fs-convert-core-functions-to-zero_user_page.patch
------------------------------------------------------
Subject: fs-convert-core-functions-to-zero_user_page-pass-kmap-type
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Nate Diller <nate.diller@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/loop.c | 2 +-
fs/buffer.c | 21 ++++++++++++---------
fs/direct-io.c | 2 +-
fs/mpage.c | 6 ++++--
include/linux/highmem.h | 29 +++++++++++++++++------------
mm/filemap_xip.c | 2 +-
6 files changed, 36 insertions(+), 26 deletions(-)
diff -puN drivers/block/loop.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type drivers/block/loop.c
--- a/drivers/block/loop.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/drivers/block/loop.c
@@ -250,7 +250,7 @@ static int do_lo_send_aops(struct loop_d
*/
printk(KERN_ERR "loop: transfer error block %llu\n",
(unsigned long long)index);
- zero_user_page(page, offset, size);
+ zero_user_page(page, offset, size, KM_USER0);
}
flush_dcache_page(page);
ret = aops->commit_write(file, page, offset,
diff -puN fs/buffer.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type fs/buffer.c
--- a/fs/buffer.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/fs/buffer.c
@@ -1848,7 +1848,7 @@ static int __block_prepare_write(struct
break;
if (buffer_new(bh)) {
clear_buffer_new(bh);
- zero_user_page(page, block_start, bh->b_size);
+ zero_user_page(page, block_start, bh->b_size, KM_USER0);
set_buffer_uptodate(bh);
mark_buffer_dirty(bh);
}
@@ -1936,7 +1936,8 @@ int block_read_full_page(struct page *pa
SetPageError(page);
}
if (!buffer_mapped(bh)) {
- zero_user_page(page, i * blocksize, blocksize);
+ zero_user_page(page, i * blocksize, blocksize,
+ KM_USER0);
if (!err)
set_buffer_uptodate(bh);
continue;
@@ -2100,7 +2101,8 @@ int cont_prepare_write(struct page *page
PAGE_CACHE_SIZE, get_block);
if (status)
goto out_unmap;
- zero_user_page(page, zerofrom, PAGE_CACHE_SIZE-zerofrom);
+ zero_user_page(page, zerofrom, PAGE_CACHE_SIZE - zerofrom,
+ KM_USER0);
generic_commit_write(NULL, new_page, zerofrom, PAGE_CACHE_SIZE);
unlock_page(new_page);
page_cache_release(new_page);
@@ -2127,7 +2129,7 @@ int cont_prepare_write(struct page *page
if (status)
goto out1;
if (zerofrom < offset) {
- zero_user_page(page, zerofrom, offset-zerofrom);
+ zero_user_page(page, zerofrom, offset - zerofrom, KM_USER0);
__block_commit_write(inode, page, zerofrom, offset);
}
return 0;
@@ -2326,7 +2328,7 @@ failed:
* Error recovery is pretty slack. Clear the page and mark it dirty
* so we'll later zero out any blocks which _were_ allocated.
*/
- zero_user_page(page, 0, PAGE_CACHE_SIZE);
+ zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
SetPageUptodate(page);
set_page_dirty(page);
return ret;
@@ -2395,7 +2397,7 @@ int nobh_writepage(struct page *page, ge
* the page size, the remaining memory is zeroed when mapped, and
* writes to that region are not written out to the file."
*/
- zero_user_page(page, offset, PAGE_CACHE_SIZE - offset);
+ zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
out:
ret = mpage_writepage(page, get_block, wbc);
if (ret == -EAGAIN)
@@ -2429,7 +2431,8 @@ int nobh_truncate_page(struct address_sp
to = (offset + blocksize) & ~(blocksize - 1);
ret = a_ops->prepare_write(NULL, page, offset, to);
if (ret == 0) {
- zero_user_page(page, offset, PAGE_CACHE_SIZE - offset);
+ zero_user_page(page, offset, PAGE_CACHE_SIZE - offset,
+ KM_USER0);
/*
* It would be more correct to call aops->commit_write()
* here, but this is more efficient.
@@ -2508,7 +2511,7 @@ int block_truncate_page(struct address_s
goto unlock;
}
- zero_user_page(page, offset, length);
+ zero_user_page(page, offset, length, KM_USER0);
mark_buffer_dirty(bh);
err = 0;
@@ -2554,7 +2557,7 @@ int block_write_full_page(struct page *p
* the page size, the remaining memory is zeroed when mapped, and
* writes to that region are not written out to the file."
*/
- zero_user_page(page, offset, PAGE_CACHE_SIZE - offset);
+ zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
return __block_write_full_page(inode, page, get_block, wbc);
}
diff -puN fs/direct-io.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type fs/direct-io.c
--- a/fs/direct-io.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/fs/direct-io.c
@@ -888,7 +888,7 @@ do_holes:
goto out;
}
zero_user_page(page, block_in_page << blkbits,
- 1 << blkbits);
+ 1 << blkbits, KM_USER0);
dio->block_in_file++;
block_in_page++;
goto next_block;
diff -puN fs/mpage.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type fs/mpage.c
--- a/fs/mpage.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/fs/mpage.c
@@ -285,7 +285,8 @@ do_mpage_readpage(struct bio *bio, struc
if (first_hole != blocks_per_page) {
zero_user_page(page, first_hole << blkbits,
- PAGE_CACHE_SIZE - (first_hole << blkbits));
+ PAGE_CACHE_SIZE - (first_hole << blkbits),
+ KM_USER0);
if (first_hole == 0) {
SetPageUptodate(page);
unlock_page(page);
@@ -584,7 +585,8 @@ page_is_mapped:
if (page->index > end_index || !offset)
goto confused;
- zero_user_page(page, offset, PAGE_CACHE_SIZE - offset);
+ zero_user_page(page, offset, PAGE_CACHE_SIZE - offset,
+ KM_USER0);
}
/*
diff -puN include/linux/highmem.h~fs-convert-core-functions-to-zero_user_page-pass-kmap-type include/linux/highmem.h
--- a/include/linux/highmem.h~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/include/linux/highmem.h
@@ -136,22 +136,27 @@ static inline void clear_highpage(struct
/*
* Same but also flushes aliased cache contents to RAM.
+ *
+ * This must be a macro because KM_USER0 and friends aren't defined if
+ * !CONFIG_HIGHMEM
*/
-static inline void zero_user_page(struct page *page, unsigned int offset, unsigned int size)
-{
- void *kaddr;
-
- BUG_ON(offset + size > PAGE_SIZE);
+#define zero_user_page(page, offset, size, km_type) \
+ do { \
+ void *kaddr; \
+ \
+ BUG_ON((offset) + (size) > PAGE_SIZE); \
+ \
+ kaddr = kmap_atomic(page, km_type); \
+ memset((char *)kaddr + (offset), 0, (size)); \
+ flush_dcache_page(page); \
+ kunmap_atomic(kaddr, (km_type)); \
+ } while (0)
- kaddr = kmap_atomic(page, KM_USER0);
- memset((char *)kaddr + offset, 0, size);
- flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
-}
-static inline void memclear_highpage_flush(struct page *page, unsigned int offset, unsigned int size)
+static inline void memclear_highpage_flush(struct page *page,
+ unsigned int offset, unsigned int size)
{
- return zero_user_page(page, offset, size);
+ zero_user_page(page, offset, size, KM_USER0);
}
#ifndef __HAVE_ARCH_COPY_USER_HIGHPAGE
diff -puN mm/filemap_xip.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type mm/filemap_xip.c
--- a/mm/filemap_xip.c~fs-convert-core-functions-to-zero_user_page-pass-kmap-type
+++ a/mm/filemap_xip.c
@@ -463,7 +463,7 @@ xip_truncate_page(struct address_space *
else
return PTR_ERR(page);
}
- zero_user_page(page, offset, length);
+ zero_user_page(page, offset, length, KM_USER0);
return 0;
}
EXPORT_SYMBOL_GPL(xip_truncate_page);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
slub-add-support-for-dynamic-cacheline-size-determination.patch
swsusp-clean-up-print.patch
display-all-possible-partitions-when-the-root-filesystem-failed-to-mount.patch
nbd-check-the-return-value-of-sysfs_create_file.patch
mutex_lock_interruptible-add-__must_check.patch
afs-implement-basic-file-write-support.patch
define-and-use-new-eventscpu_lock_acquire-and-cpu_lock_release.patch
eliminate-lock_cpu_hotplug-in-kernel-schedc.patch
call-cpu_chain-with-cpu_down_failed-if-cpu_down_prepare-failed.patch
kthread-dont-depend-on-work-queues-take-2.patch
fix-kthread_create-vs-freezer-theoretical-race.patch
make-cancel_rearming_delayed_work-reliable.patch
declare-struct-ktime.patch
make-futex_wait-use-an-hrtimer-for-timeout.patch
fs-convert-core-functions-to-zero_user_page.patch
fs-convert-core-functions-to-zero_user_page-pass-kmap-type.patch
fs-convert-core-functions-to-zero_user_page-fix-2.patch
ntfs-use-zero_user_page-fix.patch
rename-thread_info-to-stack.patch
-
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