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Commit 309f77ad authored by Namhyung Kim's avatar Namhyung Kim Committed by Al Viro
Browse files

fs/buffer.c: call __block_write_begin() if we have page 



If we have the appropriate page already, call __block_write_begin()
directly instead of releasing and regrabbing it inside of
block_write_begin().

Signed-off-by: default avatarNamhyung Kim <namhyung@gmail.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent a3314a0e

fs/buffer.c

+4 −5
Original line number Diff line number Diff line
@@ -2458,11 +2458,10 @@ int nobh_write_begin(struct address_space *mapping, 
	*fsdata = NULL;



	if (page_has_buffers(page)) {

		unlock_page(page);

		page_cache_release(page);

		*pagep = NULL;

		return block_write_begin(mapping, pos, len, flags, pagep,

					 get_block);

		ret = __block_write_begin(page, pos, len, get_block);

		if (unlikely(ret))

			goto out_release;

		return ret;

	}



	if (PageMappedToDisk(page))