f2fs: avoid race for summary information
authorJaegeuk Kim <jaegeuk.kim@samsung.com>
Sun, 31 Mar 2013 23:32:21 +0000 (08:32 +0900)
committerJaegeuk Kim <jaegeuk.kim@samsung.com>
Wed, 3 Apr 2013 08:27:51 +0000 (17:27 +0900)
In order to do GC more reliably, I'd like to lock the vicitm summary page
until its GC is completed, and also prevent any checkpoint process.

Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

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