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f2fs: check dirty_nat_cnt before flushing nat entries in journal 

It's meaningless to check dirty_nat_cnt after re-dirtying nat entries in
journal. And although there are rooms for dirty nat entires if dirty_nat_cnt
is zero, it's also meaningless to check __has_cursum_space.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Changman Lee 2014-11-25 12:44:23 +09:00 committed by Jaegeuk Kim
parent 5f72739583
commit 20d047c876
1 changed files with 3 additions and 4 deletions
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7
fs/f2fs/node.c
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@ -171,7 +171,7 @@ retry:
static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i,
struct nat_entry *ne)
{
nid_t set = ne->ni.nid / NAT_ENTRY_PER_BLOCK;
nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid);
struct nat_entry_set *head;
head = radix_tree_lookup(&nm_i->nat_set_root, set);
@ -1945,6 +1945,8 @@ void flush_nat_entries(struct f2fs_sb_info *sbi)
nid_t set_idx = 0;
LIST_HEAD(sets);
if (!nm_i->dirty_nat_cnt)
return;
/*
* if there are no enough space in journal to store dirty nat
* entries, remove all entries from journal and merge them
@ -1953,9 +1955,6 @@ void flush_nat_entries(struct f2fs_sb_info *sbi)
if (!__has_cursum_space(sum, nm_i->dirty_nat_cnt, NAT_JOURNAL))
remove_nats_in_journal(sbi);
if (!nm_i->dirty_nat_cnt)
return;
while ((found = __gang_lookup_nat_set(nm_i,
set_idx, NATVEC_SIZE, setvec))) {
unsigned idx;