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f2fs: reuse nids more aggressively

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If we can reuse nids as many as possible, we can mitigate producing obsolete
node pages in the page cache.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2015-08-14 17:57:29 -07:00
parent 26d5859974
commit 2683446646
1 changed files with 4 additions and 0 deletions
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4
fs/f2fs/node.c
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@ -306,6 +306,10 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) {
unsigned char version = nat_get_version(e);
nat_set_version(e, inc_node_version(version));
/* in order to reuse the nid */
if (nm_i->next_scan_nid > ni->nid)
nm_i->next_scan_nid = ni->nid;
}
/* change address */