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Commit 6947eea9 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

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: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarShu Tan <shu.tan@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent a66c7b2f

fs/f2fs/checkpoint.c

+4 −3
Original line number Diff line number Diff line
@@ -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;