f2fs: add sysfs entries to select the gc policy

Add sysfs entry gc_idle to control the gc policy. Where
gc_idle = 1 corresponds to selecting a cost benefit approach,
while gc_idle = 2 corresponds to selecting a greedy approach
to garbage collection. The selection is mutually exclusive one
approach will work at any point. If gc_idle = 0, then this
option is disabled.

Cc: Gu Zheng <[email protected]>
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Pankaj Kumar <[email protected]>
Reviewed-by: Gu Zheng <[email protected]>
[Jaegeuk Kim: change the select_gc_type() flow slightly]
Signed-off-by: Jaegeuk Kim <[email protected]>

0 files changed, 0 insertions, 0 deletions