f2fs: update from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
Updated as of commit b3b06a14a26af368dd58f9265cf5a9927067b768
Change-Id: I3dfbbf52d069a397de662058bb72bf96c6393bc6
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 8a116a4..f405bbf 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -25,10 +25,19 @@
/* vector size for gang look-up from nat cache that consists of radix tree */
#define NATVEC_SIZE 64
+#define SETVEC_SIZE 32
/* return value for read_node_page */
#define LOCKED_PAGE 1
+/* For flag in struct node_info */
+enum {
+ IS_CHECKPOINTED, /* is it checkpointed before? */
+ HAS_FSYNCED_INODE, /* is the inode fsynced before? */
+ HAS_LAST_FSYNC, /* has the latest node fsync mark? */
+ IS_DIRTY, /* this nat entry is dirty? */
+};
+
/*
* For node information
*/
@@ -37,12 +46,11 @@
nid_t ino; /* inode number of the node's owner */
block_t blk_addr; /* block address of the node */
unsigned char version; /* version of the node */
+ unsigned char flag; /* for node information bits */
};
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 */
};
@@ -55,18 +63,42 @@
#define nat_get_version(nat) (nat->ni.version)
#define nat_set_version(nat, v) (nat->ni.version = v)
-#define __set_nat_cache_dirty(nm_i, ne) \
- do { \
- ne->checkpointed = false; \
- list_move_tail(&ne->list, &nm_i->dirty_nat_entries); \
- } while (0)
-#define __clear_nat_cache_dirty(nm_i, ne) \
- do { \
- ne->checkpointed = true; \
- list_move_tail(&ne->list, &nm_i->nat_entries); \
- } while (0)
#define inc_node_version(version) (++version)
+static inline void copy_node_info(struct node_info *dst,
+ struct node_info *src)
+{
+ dst->nid = src->nid;
+ dst->ino = src->ino;
+ dst->blk_addr = src->blk_addr;
+ dst->version = src->version;
+ /* should not copy flag here */
+}
+
+static inline void set_nat_flag(struct nat_entry *ne,
+ unsigned int type, bool set)
+{
+ unsigned char mask = 0x01 << type;
+ if (set)
+ ne->ni.flag |= mask;
+ else
+ ne->ni.flag &= ~mask;
+}
+
+static inline bool get_nat_flag(struct nat_entry *ne, unsigned int type)
+{
+ unsigned char mask = 0x01 << type;
+ return ne->ni.flag & mask;
+}
+
+static inline void nat_reset_flag(struct nat_entry *ne)
+{
+ /* these states can be set only after checkpoint was done */
+ set_nat_flag(ne, IS_CHECKPOINTED, true);
+ set_nat_flag(ne, HAS_FSYNCED_INODE, false);
+ set_nat_flag(ne, HAS_LAST_FSYNC, true);
+}
+
static inline void node_info_from_raw_nat(struct node_info *ni,
struct f2fs_nat_entry *raw_ne)
{
@@ -86,13 +118,15 @@
enum mem_type {
FREE_NIDS, /* indicates the free nid list */
NAT_ENTRIES, /* indicates the cached nat entry */
- DIRTY_DENTS /* indicates dirty dentry pages */
+ DIRTY_DENTS, /* indicates dirty dentry pages */
+ INO_ENTRIES, /* indicates inode entries */
+ BASE_CHECK, /* check kernel status */
};
struct nat_entry_set {
- struct list_head set_list; /* link with all nat sets */
+ struct list_head set_list; /* link with other nat sets */
struct list_head entry_list; /* link with dirty nat entries */
- nid_t start_nid; /* start nid of nats in set */
+ nid_t set; /* set number*/
unsigned int entry_cnt; /* the # of nat entries in set */
};
@@ -110,18 +144,19 @@
int state; /* in use or not: NID_NEW or NID_ALLOC */
};
-static inline int next_free_nid(struct f2fs_sb_info *sbi, nid_t *nid)
+static inline void next_free_nid(struct f2fs_sb_info *sbi, nid_t *nid)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct free_nid *fnid;
- if (nm_i->fcnt <= 0)
- return -1;
spin_lock(&nm_i->free_nid_list_lock);
+ if (nm_i->fcnt <= 0) {
+ spin_unlock(&nm_i->free_nid_list_lock);
+ return;
+ }
fnid = list_entry(nm_i->free_nid_list.next, struct free_nid, list);
*nid = fnid->nid;
spin_unlock(&nm_i->free_nid_list_lock);
- return 0;
}
/*
@@ -171,21 +206,26 @@
{
unsigned int block_off = NAT_BLOCK_OFFSET(start_nid);
- if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
- f2fs_clear_bit(block_off, nm_i->nat_bitmap);
- else
- f2fs_set_bit(block_off, nm_i->nat_bitmap);
+ f2fs_change_bit(block_off, nm_i->nat_bitmap);
}
static inline void fill_node_footer(struct page *page, nid_t nid,
nid_t ino, unsigned int ofs, bool reset)
{
struct f2fs_node *rn = F2FS_NODE(page);
+ unsigned int old_flag = 0;
+
if (reset)
memset(rn, 0, sizeof(*rn));
+ else
+ old_flag = le32_to_cpu(rn->footer.flag);
+
rn->footer.nid = cpu_to_le32(nid);
rn->footer.ino = cpu_to_le32(ino);
- rn->footer.flag = cpu_to_le32(ofs << OFFSET_BIT_SHIFT);
+
+ /* should remain old flag bits such as COLD_BIT_SHIFT */
+ rn->footer.flag = cpu_to_le32((ofs << OFFSET_BIT_SHIFT) |
+ (old_flag & OFFSET_BIT_MASK));
}
static inline void copy_node_footer(struct page *dst, struct page *src)
@@ -197,8 +237,7 @@
static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr)
{
- struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
- struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
+ struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
struct f2fs_node *rn = F2FS_NODE(page);
rn->footer.cp_ver = ckpt->checkpoint_ver;