From 6947eea957e4c4c873f92a4ee5da7a6ef0012718 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Fri, 29 Nov 2013 16:37:00 +0800 Subject: [PATCH] f2fs: avoid to calculate incorrect max orphan number Because we will write node summaries when do_checkpoint with umount flag, our number of max orphan blocks should minus NR_CURSEG_NODE_TYPE additional. Signed-off-by: Chao Yu Signed-off-by: Shu Tan Signed-off-by: Jaegeuk Kim --- fs/f2fs/checkpoint.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 21e721534965..c7e0572fdede 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -190,12 +190,13 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi) int err = 0; /* - * considering 512 blocks in a segment 5 blocks are needed for cp + * considering 512 blocks in a segment 8 blocks are needed for cp * and log segment summaries. Remaining blocks are used to keep * orphan entries with the limitation one reserved segment - * for cp pack we can have max 1020*507 orphan entries + * for cp pack we can have max 1020*504 orphan entries */ - max_orphans = (sbi->blocks_per_seg - 5) * F2FS_ORPHANS_PER_BLOCK; + max_orphans = (sbi->blocks_per_seg - 2 - NR_CURSEG_TYPE) + * F2FS_ORPHANS_PER_BLOCK; mutex_lock(&sbi->orphan_inode_mutex); if (sbi->n_orphans >= max_orphans) err = -ENOSPC; -- 2.20.1