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authorChristoph Hellwig <hch@lst.de>2010-06-04 13:29:57 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2010-08-10 00:47:32 +0400
commit6e1db88d536adcbbfe562b2d4b7d6425784fff12 (patch)
tree8cfcb5a6190722db6249b2e4978f39247975abcf /fs/sysv/itree.c
parentf4e420dc423148fba637af1ab618fa8896dfb2d6 (diff)
downloadlinux-6e1db88d536adcbbfe562b2d4b7d6425784fff12.tar.xz
introduce __block_write_begin
Split up the block_write_begin implementation - __block_write_begin is a new trivial wrapper for block_prepare_write that always takes an already allocated page and can be either called from block_write_begin or filesystem code that already has a page allocated. Remove the handling of already allocated pages from block_write_begin after switching all callers that do it to __block_write_begin. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/sysv/itree.c')
-rw-r--r--fs/sysv/itree.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 4068f485cfd6..82a005c3d7eb 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -461,8 +461,7 @@ static int sysv_readpage(struct file *file, struct page *page)
int sysv_prepare_chunk(struct page *page, loff_t pos, unsigned len)
{
- return block_write_begin_newtrunc(NULL, page->mapping, pos, len, 0,
- &page, NULL, get_block);
+ return __block_write_begin(page, pos, len, get_block);
}
static int sysv_write_begin(struct file *file, struct address_space *mapping,