f2fs: add info of appended or updated data writes
This patch introduces a inode number list in which represents inodes having
appended data writes or updated data writes after last checkpoint.
This will be used at fsync to determine whether the recovery information
should be written or not.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 4bf2037..430163d 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -326,6 +326,44 @@
spin_unlock(&sbi->ino_lock[type]);
}
+void add_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ /* add new dirty ino entry into list */
+ __add_ino_entry(sbi, ino, type);
+}
+
+void remove_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type)
+{
+ /* remove dirty ino entry from list */
+ __remove_ino_entry(sbi, ino, type);
+}
+
+/* mode should be APPEND_INO or UPDATE_INO */
+bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode)
+{
+ struct ino_entry *e;
+ spin_lock(&sbi->ino_lock[mode]);
+ e = radix_tree_lookup(&sbi->ino_root[mode], ino);
+ spin_unlock(&sbi->ino_lock[mode]);
+ return e ? true : false;
+}
+
+static void release_dirty_inode(struct f2fs_sb_info *sbi)
+{
+ struct ino_entry *e, *tmp;
+ int i;
+
+ for (i = APPEND_INO; i <= UPDATE_INO; i++) {
+ spin_lock(&sbi->ino_lock[i]);
+ list_for_each_entry_safe(e, tmp, &sbi->ino_list[i], list) {
+ list_del(&e->list);
+ radix_tree_delete(&sbi->ino_root[i], e->ino);
+ kmem_cache_free(ino_entry_slab, e);
+ }
+ spin_unlock(&sbi->ino_lock[i]);
+ }
+}
+
int acquire_orphan_inode(struct f2fs_sb_info *sbi)
{
int err = 0;
@@ -897,6 +935,7 @@
if (unlikely(!is_set_ckpt_flags(ckpt, CP_ERROR_FLAG))) {
clear_prefree_segments(sbi);
+ release_dirty_inode(sbi);
F2FS_RESET_SB_DIRT(sbi);
}
}