diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2016-01-18 18:32:58 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:50 +0200 |
| commit | 8f490ca2f086eeabb99cdcfeff3818d7b9f27ad2 (patch) | |
| tree | b78907f2392c515bee56cea59faf62afef99432c /fs/f2fs | |
| parent | 66f0cee35954ba3fa83ea50353dd5adb12e8e349 (diff) | |
f2fs: export dirty_nats_ratio in sysfs
This patch exports a new sysfs entry 'dirty_nat_ratio' to control threshold
of dirty nat entries, if current ratio exceeds configured threshold,
checkpoint will be triggered in f2fs_balance_fs_bg for flushing dirty nats.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Conflicts:
Documentation/ABI/testing/sysfs-fs-f2fs
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 1 | ||||
| -rw-r--r-- | fs/f2fs/node.h | 2 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 2 |
4 files changed, 5 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index df95598be..3e109890e 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -514,6 +514,7 @@ struct f2fs_nm_info { nid_t next_scan_nid; /* the next nid to be scanned */ unsigned int ram_thresh; /* control the memory footprint */ unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ + unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ /* NAT cache management */ struct radix_tree_root nat_root;/* root of the nat entry cache */ diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 97a29b423..8f3f7479a 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -2000,6 +2000,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi) nm_i->nat_cnt = 0; nm_i->ram_thresh = DEF_RAM_THRESHOLD; nm_i->ra_nid_pages = DEF_RA_NID_PAGES; + nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD; INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); INIT_LIST_HEAD(&nm_i->free_nid_list); diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index bd119c0ed..56c451921 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -123,7 +123,7 @@ static inline void raw_nat_from_node_info(struct f2fs_nat_entry *raw_ne, static inline bool excess_dirty_nats(struct f2fs_sb_info *sbi) { return NM_I(sbi)->dirty_nat_cnt >= NM_I(sbi)->max_nid * - DEF_DIRTY_NAT_RATIO_THRESHOLD / 100; + NM_I(sbi)->dirty_nats_ratio / 100; } enum mem_type { diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 0b9bb2bfe..3f1878aec 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -215,6 +215,7 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); +F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]); @@ -236,6 +237,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(dir_level), ATTR_LIST(ram_thresh), ATTR_LIST(ra_nid_pages), + ATTR_LIST(dirty_nats_ratio), ATTR_LIST(cp_interval), ATTR_LIST(idle_interval), NULL, |