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-rw-r--r--fs/f2fs/checkpoint.c3
-rw-r--r--fs/f2fs/f2fs.h2
-rw-r--r--fs/f2fs/segment.c4
-rw-r--r--fs/f2fs/super.c5
4 files changed, 13 insertions, 1 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index ff53405aee39..0569097dbd7a 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1114,6 +1114,9 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
if (cpc->reason == CP_RECOVERY)
f2fs_msg(sbi->sb, KERN_NOTICE,
"checkpoint: version = %llx", ckpt_ver);
+
+ /* do checkpoint periodically */
+ sbi->cp_expires = round_jiffies_up(jiffies + HZ * sbi->cp_interval);
out:
mutex_unlock(&sbi->cp_mutex);
trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint");
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 00bd47045c1e..aad4720c516e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -124,6 +124,7 @@ enum {
(SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
#define BATCHED_TRIM_BLOCKS(sbi) \
(BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
+#define DEF_CP_INTERVAL 60 /* 60 secs */
struct cp_control {
int reason;
@@ -734,6 +735,7 @@ struct f2fs_sb_info {
struct rw_semaphore node_write; /* locking node writes */
struct mutex writepages; /* mutex for writepages() */
wait_queue_head_t cp_wait;
+ long cp_expires, cp_interval; /* next expected periodic cp */
struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 6b8edf21a152..1d86a35ae9fe 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -15,6 +15,7 @@
#include <linux/prefetch.h>
#include <linux/kthread.h>
#include <linux/swap.h>
+#include <linux/timer.h>
#include "f2fs.h"
#include "segment.h"
@@ -315,7 +316,8 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
/* checkpoint is the only way to shrink partial cached entries */
if (!available_free_memory(sbi, NAT_ENTRIES) ||
excess_prefree_segs(sbi) ||
- !available_free_memory(sbi, INO_ENTRIES))
+ !available_free_memory(sbi, INO_ENTRIES) ||
+ jiffies > sbi->cp_expires)
f2fs_sync_fs(sbi->sb, true);
}
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ba058d08cb33..cb23d85a4ed3 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -215,6 +215,7 @@ 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(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, cp_interval);
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
@@ -231,6 +232,7 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(max_victim_search),
ATTR_LIST(dir_level),
ATTR_LIST(ram_thresh),
+ ATTR_LIST(cp_interval),
NULL,
};
@@ -1014,6 +1016,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
atomic_set(&sbi->nr_pages[i], 0);
sbi->dir_level = DEF_DIR_LEVEL;
+ sbi->cp_interval = DEF_CP_INTERVAL;
clear_sbi_flag(sbi, SBI_NEED_FSCK);
INIT_LIST_HEAD(&sbi->s_list);
@@ -1350,6 +1353,8 @@ try_onemore:
f2fs_commit_super(sbi, true);
}
+ sbi->cp_expires = round_jiffies_up(jiffies);
+
return 0;
free_kobj: