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authorChristoph Hellwig2010-10-06 10:47:23 +0200
committerAl Viro2010-10-25 21:18:20 -0400
commitebdec241d509cf69f6ebf1ecdc036359d3dbe154 (patch)
treee3c23f9b213936cb8501c83f55522a01f4a69aca /fs/buffer.c
parent56b0dacfa2b8416815a2f2a5f4f51e46be4cf14c (diff)
fs: kill block_prepare_write
__block_write_begin and block_prepare_write are identical except for slightly different calling conventions. Convert all callers to the __block_write_begin calling conventions and drop block_prepare_write. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 7f0b9b083f77..a7b8f3c59a4e 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1834,9 +1834,11 @@ void page_zero_new_buffers(struct page *page, unsigned from, unsigned to)
}
EXPORT_SYMBOL(page_zero_new_buffers);
-int block_prepare_write(struct page *page, unsigned from, unsigned to,
+int __block_write_begin(struct page *page, loff_t pos, unsigned len,
get_block_t *get_block)
{
+ unsigned from = pos & (PAGE_CACHE_SIZE - 1);
+ unsigned to = from + len;
struct inode *inode = page->mapping->host;
unsigned block_start, block_end;
sector_t block;
@@ -1916,7 +1918,7 @@ int block_prepare_write(struct page *page, unsigned from, unsigned to,
}
return err;
}
-EXPORT_SYMBOL(block_prepare_write);
+EXPORT_SYMBOL(__block_write_begin);
static int __block_commit_write(struct inode *inode, struct page *page,
unsigned from, unsigned to)
@@ -1953,15 +1955,6 @@ static int __block_commit_write(struct inode *inode, struct page *page,
return 0;
}
-int __block_write_begin(struct page *page, loff_t pos, unsigned len,
- get_block_t *get_block)
-{
- unsigned start = pos & (PAGE_CACHE_SIZE - 1);
-
- return block_prepare_write(page, start, start + len, get_block);
-}
-EXPORT_SYMBOL(__block_write_begin);
-
/*
* block_write_begin takes care of the basic task of block allocation and
* bringing partial write blocks uptodate first.
@@ -2379,7 +2372,7 @@ block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
else
end = PAGE_CACHE_SIZE;
- ret = block_prepare_write(page, 0, end, get_block);
+ ret = __block_write_begin(page, 0, end, get_block);
if (!ret)
ret = block_commit_write(page, 0, end);