f2fs: refactor flush_sit_entries codes for reducing SIT writes

[deliverable/linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index b389ced9090b1fda4544a148d817c538da1521a0..dd7b171a1b164792f7ff06421a41258e9a99696a 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -161,6 +161,15 @@ static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i)
        return before;
 }
 
+static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size,
+                                                               int type)
+{
+       if (type == NAT_JOURNAL)
+               return nats_in_cursum(sum) + size <= NAT_JOURNAL_ENTRIES;
+
+       return sits_in_cursum(sum) + size <= SIT_JOURNAL_ENTRIES;
+}
+
 /*
  * ioctl commands
  */
@@ -375,6 +384,8 @@ struct f2fs_sm_info {
        int nr_discards;                        /* # of discards in the list */
        int max_discards;                       /* max. discards to be issued */
 
+       struct list_head sit_entry_set; /* sit entry set list */
+
        unsigned int ipu_policy;        /* in-place-update policy */
        unsigned int min_ipu_util;      /* in-place-update threshold */