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f2fs: drop duplicate radix tree lookup of nat_entry_set 

The nat entry is listed from the set list for freeing,
it's duplicate to do radix tree lookup again.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
[Jaegeuk Kim: remove unnecessary f2fs_bug_on]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Kinglong Mee 2017-02-28 21:34:47 +08:00 committed by Jaegeuk Kim
parent 20fda56b01
commit 0b28b71e29
1 changed files with 6 additions and 12 deletions
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18
fs/f2fs/node.c
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@ -177,18 +177,12 @@ static void __set_nat_cache_dirty(struct f2fs_nm_info *nm_i,
}
static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i,
struct nat_entry *ne)
struct nat_entry_set *set, struct nat_entry *ne)
{
nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid);
struct nat_entry_set *head;
head = radix_tree_lookup(&nm_i->nat_set_root, set);
if (head) {
list_move_tail(&ne->list, &nm_i->nat_entries);
set_nat_flag(ne, IS_DIRTY, false);
head->entry_cnt--;
nm_i->dirty_nat_cnt--;
}
list_move_tail(&ne->list, &nm_i->nat_entries);
set_nat_flag(ne, IS_DIRTY, false);
set->entry_cnt--;
nm_i->dirty_nat_cnt--;
}
static unsigned int __gang_lookup_nat_set(struct f2fs_nm_info *nm_i,
@ -2407,7 +2401,7 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
}
raw_nat_from_node_info(raw_ne, &ne->ni);
nat_reset_flag(ne);
__clear_nat_cache_dirty(NM_I(sbi), ne);
__clear_nat_cache_dirty(NM_I(sbi), set, ne);
if (nat_get_blkaddr(ne) == NULL_ADDR) {
add_free_nid(sbi, nid, false);
spin_lock(&NM_I(sbi)->nid_list_lock);