f2fs: add reserved blocks for root user

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This patch allows root to reserve some blocks via mount option.

"-o reserve_root=N" means N x 4KB-sized blocks for root only.

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

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This commit is contained in:

Jaegeuk Kim 2017-12-27 15:05:52 -08:00

parent 2c1905042c

commit 7e65be49ed

3 changed files with 54 additions and 6 deletions

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20

fs/f2fs/f2fs.h

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37

fs/f2fs/super.c

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3

fs/f2fs/sysfs.c

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