/* # of pages to perform readahead before building free nids */
#define FREE_NID_PAGES 4
-/* maximum # of free node ids to produce during build_free_nids */
-#define MAX_FREE_NIDS (NAT_ENTRY_PER_BLOCK * FREE_NID_PAGES)
-
/* maximum readahead size for node during getting data blocks */
#define MAX_RA_NODE 128
-/* maximum cached nat entries to manage memory footprint */
-#define NM_WOUT_THRESHOLD (64 * NAT_ENTRY_PER_BLOCK)
+/* control the memory footprint threshold (10MB per 1GB ram) */
+#define DEF_RAM_THRESHOLD 10
/* vector size for gang look-up from nat cache that consists of radix tree */
#define NATVEC_SIZE 64
struct nat_entry {
struct list_head list; /* for clean or dirty nat list */
bool checkpointed; /* whether it is checkpointed or not */
+ bool fsync_done; /* whether the latest node has fsync mark */
struct node_info ni; /* in-memory node information */
};
#define nat_set_version(nat, v) (nat->ni.version = v)
#define __set_nat_cache_dirty(nm_i, ne) \
- list_move_tail(&ne->list, &nm_i->dirty_nat_entries);
+ do { \
+ ne->checkpointed = false; \
+ list_move_tail(&ne->list, &nm_i->dirty_nat_entries); \
+ } while (0);
#define __clear_nat_cache_dirty(nm_i, ne) \
- list_move_tail(&ne->list, &nm_i->nat_entries);
+ do { \
+ ne->checkpointed = true; \
+ list_move_tail(&ne->list, &nm_i->nat_entries); \
+ } while (0);
#define inc_node_version(version) (++version)
static inline void node_info_from_raw_nat(struct node_info *ni,
ni->version = raw_ne->version;
}
+static inline void raw_nat_from_node_info(struct f2fs_nat_entry *raw_ne,
+ struct node_info *ni)
+{
+ raw_ne->ino = cpu_to_le32(ni->ino);
+ raw_ne->block_addr = cpu_to_le32(ni->blk_addr);
+ raw_ne->version = ni->version;
+}
+
+enum mem_type {
+ FREE_NIDS, /* indicates the free nid list */
+ NAT_ENTRIES, /* indicates the cached nat entry */
+ DIRTY_DENTS /* indicates dirty dentry pages */
+};
+
/*
* For free nid mangement
*/
{
unsigned int ofs = ofs_of_node(node_page);
- if (ofs == XATTR_NODE_OFFSET)
+ if (f2fs_has_xattr_block(ofs))
return false;
if (ofs == 3 || ofs == 4 + NIDS_PER_BLOCK ||
{
struct f2fs_node *rn = F2FS_NODE(p);
- wait_on_page_writeback(p);
+ f2fs_wait_on_page_writeback(p, NODE);
if (i)
rn->i.i_nid[off - NODE_DIR1_BLOCK] = cpu_to_le32(nid);