f2fs: fix to avoid overflow when left shifting page offset

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We use following method to calculate size with current page index:
size = index << PAGE_SHIFT
If type of index has only 32-bits size, left shifting will incur overflow,
which makes result incorrect.

So let's cast index with 64-bits type to avoid such issue.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2017-01-25 10:52:39 +08:00 • committed by Jaegeuk Kim

parent ba38c27eb9

commit dba79f38bc

1 changed files with 3 additions and 2 deletions

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fs/f2fs/recovery.c

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