If we can reuse nids as many as possible, we can mitigate producing obsolete
node pages in the page cache.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/node.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 6e10c2a..3cc32b8 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -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 */
--
2.1.1
------------------------------------------------------------------------------
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