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[ Upstream commit8c890c4c60] We can control the scanning window granularity for GC migration. For more frequent scanning and GC on zoned devices, we need a fine grained control knob for it. Signed-off-by: Daeho Jeong <daehojeong@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Stable-dep-of:5cc69a27ab("f2fs: forcibly migrate to secure space for zoned device file pinning") Signed-off-by: Sasha Levin <sashal@kernel.org>