Since max_nid value was minus three in previous commit:
'b63da15e8b475245026bdf2096853683f189706b', Our last three nids could not be
used ever, but 0/node nid/meta nid is still occupied.
And also our ra_meta_pages() could not readahead the last block of NAT.
Let's fix the wrong calculation of this value, and left the reserved nids there.
Signed-off-by: Chao Yu <chao2...@samsung.com>
---
fs/f2fs/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 84f9b7b..3f0bb50 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1860,7 +1860,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg);
/* not used nids: 0, node, meta, (and root counted as valid node) */
- nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks - 3;
+ nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks;
nm_i->fcnt = 0;
nm_i->nat_cnt = 0;
nm_i->ram_thresh = DEF_RAM_THRESHOLD;
--
1.7.9.5
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