f2fs: add address space operations for data
authorJaegeuk Kim <jaegeuk.kim@samsung.com>
Fri, 2 Nov 2012 08:10:12 +0000 (17:10 +0900)
committerJaegeuk Kim <jaegeuk.kim@samsung.com>
Tue, 11 Dec 2012 04:43:41 +0000 (13:43 +0900)
This adds address space operations for data.

- F2FS supports readpages(), writepages(), and direct_IO().

- Because of out-of-place writes, f2fs_direct_IO() does not write data in place.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

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