diff options
| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-03-31 13:26:03 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-04-03 17:27:49 +0900 |
| commit | 5ec4e49f9bd753e2a6857a96e01f8ae5ff00b459 (patch) | |
| tree | 25938d3e5e3e5c9bbb37de1ee6c2cd6ad23071a8 /fs/f2fs/checkpoint.c | |
| parent | 33afa7fde0defbb362328233e600e052d0a22cd5 (diff) | |
f2fs: change GC bitmaps to apply the section granularity
This patch removes a bitmap for victim segments selected by foreground GC, and
modifies the other bitmap for victim segments selected by background GC.
1) foreground GC bitmap
: We don't need to manage this, since we just only one previous victim section
number instead of the whole victim history.
The f2fs uses the victim section number in order not to allocate currently
GC'ed section to current active logs.
2) background GC bitmap
: This bitmap is used to avoid selecting victims repeatedly by background GCs.
In addition, the victims are able to be selected by foreground GCs, since
there is no need to read victim blocks during foreground GCs.
By the fact that the foreground GC reclaims segments in a section unit, it'd
be better to manage this bitmap based on the section granularity.
Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index d947e66ee8a..93fd57d491a 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -748,8 +748,6 @@ void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount) flush_nat_entries(sbi); flush_sit_entries(sbi); - reset_victim_segmap(sbi); - /* unlock all the fs_lock[] in do_checkpoint() */ do_checkpoint(sbi, is_umount); |