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f2fs: move extent_node list operations being coupled with rbtree operation 

This patch moves extent_node list operations to be handled together with
its rbtree operations.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-01-26 09:12:50 -08:00
parent a03f01f267
commit 43a2fa180e
1 changed files with 17 additions and 23 deletions
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40
fs/f2fs/extent_cache.c
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@ -360,10 +360,16 @@ static struct extent_node *__try_merge_extent_node(struct f2fs_sb_info *sbi,
en = next_ex;
}
if (en) {
__try_update_largest_extent(et, en);
et->cached_en = en;
}
if (!en)
return NULL;
__try_update_largest_extent(et, en);
et->cached_en = en;
spin_lock(&sbi->extent_lock);
if (!list_empty(&en->list))
list_move_tail(&en->list, &sbi->extent_list);
spin_unlock(&sbi->extent_lock);
return en;
}
@ -400,6 +406,11 @@ do_insert:
__try_update_largest_extent(et, en);
et->cached_en = en;
/* update in global extent list */
spin_lock(&sbi->extent_lock);
list_add_tail(&en->list, &sbi->extent_list);
spin_unlock(&sbi->extent_lock);
return en;
}
@ -498,13 +509,6 @@ static unsigned int f2fs_update_extent_tree_range(struct inode *inode,
insert_p = NULL;
insert_parent = NULL;
}
/* update in global extent list */
spin_lock(&sbi->extent_lock);
if (en1)
list_add_tail(&en1->list, &sbi->extent_list);
spin_unlock(&sbi->extent_lock);
en = next_en;
}
@ -512,9 +516,8 @@ static unsigned int f2fs_update_extent_tree_range(struct inode *inode,
if (blkaddr) {
set_extent_info(&ei, fofs, blkaddr, len);
en1 = __try_merge_extent_node(sbi, et, &ei, prev_en, next_en);
if (!en1)
en1 = __insert_extent_tree(sbi, et, &ei,
if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
__insert_extent_tree(sbi, et, &ei,
insert_p, insert_parent);
/* give up extent_cache, if split and small updates happen */
@ -524,15 +527,6 @@ static unsigned int f2fs_update_extent_tree_range(struct inode *inode,
et->largest.len = 0;
set_inode_flag(F2FS_I(inode), FI_NO_EXTENT);
}
spin_lock(&sbi->extent_lock);
if (en1) {
if (list_empty(&en1->list))
list_add_tail(&en1->list, &sbi->extent_list);
else
list_move_tail(&en1->list, &sbi->extent_list);
}
spin_unlock(&sbi->extent_lock);
}
if (is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT))