f2fs: introduce f2fs_replace_block() for reuse

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Introduce a generic function replace_block base on recover_data_page,
and export it. So with it we can operate file's meta data which is in
CP/SSA area when we invoke fallocate with FALLOC_FL_COLLAPSE_RANGE
flag.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2015-05-06 13:08:06 +08:00 • committed by Jaegeuk Kim

parent d5b692b786

commit 19f106bc03

3 changed files with 27 additions and 10 deletions

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4

fs/f2fs/f2fs.h

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2

fs/f2fs/recovery.c

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31

fs/f2fs/segment.c

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