f2fs: introduce a flag to represent each nat entry information
This patch introduces a flag in the nat entry structure to merge various
information such as checkpointed and fsync_done marks.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b32eb56..d19d6b1 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -131,7 +131,7 @@
read_lock(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, nid);
- if (e && !e->checkpointed)
+ if (e && !get_nat_flag(e, IS_CHECKPOINTED))
is_cp = 0;
read_unlock(&nm_i->nat_tree_lock);
return is_cp;
@@ -146,7 +146,7 @@
read_lock(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, nid);
if (e)
- fsync_done = e->fsync_done;
+ fsync_done = get_nat_flag(e, HAS_FSYNC_MARK);
read_unlock(&nm_i->nat_tree_lock);
return fsync_done;
}
@@ -159,7 +159,7 @@
write_lock(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, nid);
if (e)
- e->fsync_done = false;
+ set_nat_flag(e, HAS_FSYNC_MARK, false);
write_unlock(&nm_i->nat_tree_lock);
}
@@ -176,7 +176,7 @@
}
memset(new, 0, sizeof(struct nat_entry));
nat_set_nid(new, nid);
- new->checkpointed = true;
+ set_nat_flag(new, IS_CHECKPOINTED, true);
list_add_tail(&new->list, &nm_i->nat_entries);
nm_i->nat_cnt++;
return new;
@@ -249,7 +249,7 @@
/* update fsync_mark if its inode nat entry is still alive */
e = __lookup_nat_cache(nm_i, ni->ino);
if (e)
- e->fsync_done = fsync_done;
+ set_nat_flag(e, HAS_FSYNC_MARK, fsync_done);
write_unlock(&nm_i->nat_tree_lock);
}
@@ -1349,7 +1349,8 @@
read_lock(&nm_i->nat_tree_lock);
ne = __lookup_nat_cache(nm_i, nid);
if (ne &&
- (!ne->checkpointed || nat_get_blkaddr(ne) != NULL_ADDR))
+ (!get_nat_flag(ne, IS_CHECKPOINTED) ||
+ nat_get_blkaddr(ne) != NULL_ADDR))
allocated = true;
read_unlock(&nm_i->nat_tree_lock);
if (allocated)
