f2fs: don't mix to use union values in extent_info

Let's explicitly use the defined values in block_age case only.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index 3aa2f82..cc3fed0 100644 (file)
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -881,7 +881,8 @@ static unsigned long long __calculate_block_age(unsigned long long new,
 }
 
 /* This returns a new age and allocated blocks in ei */
-static int __get_new_block_age(struct inode *inode, struct extent_info *ei)
+static int __get_new_block_age(struct inode *inode, struct extent_info *ei,
+                                               block_t blkaddr)
 {
        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
        loff_t f_size = i_size_read(inode);
@@ -894,7 +895,7 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei)
         * block here.
         */
        if ((f_size >> PAGE_SHIFT) == ei->fofs && f_size & (PAGE_SIZE - 1) &&
-                       ei->blk == NEW_ADDR)
+                       blkaddr == NEW_ADDR)
                return -EINVAL;
 
        if (__lookup_extent_tree(inode, ei->fofs, ei, EX_BLOCK_AGE)) {
@@ -915,14 +916,14 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei)
                return 0;
        }
 
-       f2fs_bug_on(sbi, ei->blk == NULL_ADDR);
+       f2fs_bug_on(sbi, blkaddr == NULL_ADDR);
 
        /* the data block was allocated for the first time */
-       if (ei->blk == NEW_ADDR)
+       if (blkaddr == NEW_ADDR)
                goto out;
 
-       if (__is_valid_data_blkaddr(ei->blk) &&
-                       !f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC_ENHANCE)) {
+       if (__is_valid_data_blkaddr(blkaddr) &&
+           !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
                f2fs_bug_on(sbi, 1);
                return -EINVAL;
        }
@@ -953,8 +954,7 @@ static void __update_extent_cache(struct dnode_of_data *dn, enum extent_type typ
                else
                        ei.blk = dn->data_blkaddr;
        } else if (type == EX_BLOCK_AGE) {
-               ei.blk = dn->data_blkaddr;
-               if (__get_new_block_age(dn->inode, &ei))
+               if (__get_new_block_age(dn->inode, &ei, dn->data_blkaddr))
                        return;
        }
        __update_extent_tree_range(dn->inode, &ei, type);