f2fs: add ioctl to expose current features

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This patch adds an ioctl to provide feature information to user.
For exapmle, SQLite can use this ioctl to detect whether f2fs support atomic
write or not.

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 2017-07-21 12:58:59 -07:00

parent dc6febb6bc

commit e65ef20781

2 changed files with 15 additions and 0 deletions

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2

fs/f2fs/f2fs.h

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13

fs/f2fs/file.c

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