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authorChristoph Hellwig <hch@lst.de>2010-06-04 11:29:56 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2010-08-09 16:47:31 -0400
commitf4e420dc423148fba637af1ab618fa8896dfb2d6 (patch)
treedf0e81f5f4b8448dd6b3929e5537dcc46e7d7dde /fs/pnode.h
parent282dc178849882289d30e58b54be6b2799b351aa (diff)
downloadlinux-f4e420dc423148fba637af1ab618fa8896dfb2d6.tar.gz
clean up write_begin usage for directories in pagecache
For filesystem that implement directories in pagecache we call block_write_begin with an already allocated page for this code, while the normal regular file write path uses the default block_write_begin behaviour. Get rid of the __foofs_write_begin helper and opencode the normal write_begin call in foofs_write_begin, while adding a new foofs_prepare_chunk helper for the directory code. The added benefit is that foofs_prepare_chunk has a much saner calling convention. Note that the interruptible flag passed into block_write_begin is always ignored if we already pass in a page (see next patch for details), and we never were doing truncations of exessive blocks for this case either so we can switch directly to block_write_begin_newtrunc. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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