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| author |   Chao Yu <yuchao0@huawei.com> | 2021-05-20 19:51:50 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2021-06-23 01:09:35 -0700 |
| commit | 6ce19aff0b8cd386860855185c6cd79337fc4d2b (patch) | |
| tree | 437802d6394317335ddcf02d21ff95425d97a200 /fs/f2fs/debug.c | |
| parent | f2fs: clean up /sys/fs/f2fs/<disk>/features (diff) | |
| download | linux-dev-6ce19aff0b8cd386860855185c6cd79337fc4d2b.tar.xz linux-dev-6ce19aff0b8cd386860855185c6cd79337fc4d2b.zip | |
f2fs: compress: add compress_inode to cache compressed blocks
Support to use address space of inner inode to cache compressed block,
in order to improve cache hit ratio of random read.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/debug.c')
| -rw-r--r-- | fs/f2fs/debug.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index c03949a7ccff..833325038ef3 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -152,6 +152,12 @@ static void update_general_status(struct f2fs_sb_info *sbi) si->node_pages = NODE_MAPPING(sbi)->nrpages; if (sbi->meta_inode) si->meta_pages = META_MAPPING(sbi)->nrpages; +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (sbi->compress_inode) { + si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages; + si->compress_page_hit = atomic_read(&sbi->compress_page_hit); + } +#endif si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT]; si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT]; si->sits = MAIN_SEGS(sbi); @@ -309,6 +315,12 @@ get_cache: si->page_mem += (unsigned long long)npages << PAGE_SHIFT; } +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (sbi->compress_inode) { + unsigned npages = COMPRESS_MAPPING(sbi)->nrpages; + si->page_mem += (unsigned long long)npages << PAGE_SHIFT; + } +#endif } static int stat_show(struct seq_file *s, void *v) @@ -476,6 +488,7 @@ static int stat_show(struct seq_file *s, void *v) "volatile IO: %4d (Max. %4d)\n", si->inmem_pages, si->aw_cnt, si->max_aw_cnt, si->vw_cnt, si->max_vw_cnt); + seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); seq_printf(s, " - nodes: %4d in %4d\n", si->ndirty_node, si->node_pages); seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", |