From: Jaegeuk Kim Date: Thu, 21 Mar 2013 03:53:19 +0000 (+0900) Subject: f2fs: remain nat cache entries for further free nid allocation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fa37241743ac26ba0ac6f54579158c2fae310a5c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git f2fs: remain nat cache entries for further free nid allocation In the checkpoint flow, the f2fs investigates the total nat cache entries. Previously, if an entry has NULL_ADDR, f2fs drops the entry and adds the obsolete nid to the free nid list. However, this free nid will be reused sooner, resulting in its nat entry miss. In order to avoid this, we don't need to drop the nat cache entry at this moment. Reviewed-by: Namjae Jeon Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index f7b03ba9c0d7..0177f9434c25 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1621,11 +1621,11 @@ flush_now: nid_in_journal(sum, offset) = cpu_to_le32(nid); } - if (nat_get_blkaddr(ne) == NULL_ADDR) { + if (nat_get_blkaddr(ne) == NULL_ADDR && + !add_free_nid(NM_I(sbi), nid)) { write_lock(&nm_i->nat_tree_lock); __del_from_nat_cache(nm_i, ne); write_unlock(&nm_i->nat_tree_lock); - add_free_nid(NM_I(sbi), nid); } else { write_lock(&nm_i->nat_tree_lock); __clear_nat_cache_dirty(nm_i, ne);