From: Vyacheslav Dubeyko Subject: [PATCH] nilfs: add debug messages for recovery module This patch simply adds several pr_debug() messages for debugging recovery code functioning. Signed-off-by: Vyacheslav Dubeyko --- fs/nilfs2/recovery.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c index f1626f5..cb5c0c7 100644 --- a/fs/nilfs2/recovery.c +++ b/fs/nilfs2/recovery.c @@ -435,6 +435,12 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs, int err; int i; + pr_debug("NILFS: nilfs_prepare_segment_for_recovery\n"); + pr_debug("NILFS: ns_segnum %lld, ns_nextnum %lld\n", + nilfs->ns_segnum, nilfs->ns_nextnum); + pr_debug("NILFS: ri_segnum %lld, ri_nextnum %lld\n", + ri->ri_segnum, ri->ri_nextnum); + segnum[0] = nilfs->ns_segnum; segnum[1] = nilfs->ns_nextnum; segnum[2] = ri->ri_segnum; @@ -602,6 +608,11 @@ static int nilfs_do_roll_forward(struct the_nilfs *nilfs, segnum = nilfs_get_segnum_of_block(nilfs, pseg_start); nilfs_get_segment_range(nilfs, segnum, &seg_start, &seg_end); + pr_debug("NILFS: nilfs_do_roll_forward\n"); + pr_debug("NILFS: pseg_start %lld, seg_seq %lld\n", pseg_start, seg_seq); + pr_debug("NILFS: segnum %lld\n", segnum); + pr_debug("NILFS: seg_start %lld, seg_end %lld\n", seg_start, seg_end); + while (segnum != ri->ri_segnum || pseg_start <= ri->ri_pseg_start) { brelse(bh_sum); bh_sum = nilfs_read_log_header(nilfs, pseg_start, &sum); @@ -705,6 +716,8 @@ static void nilfs_finish_roll_forward(struct the_nilfs *nilfs, struct buffer_head *bh; int err; + pr_debug("NILFS: nilfs_finish_roll_forward\n"); + if (nilfs_get_segnum_of_block(nilfs, ri->ri_lsegs_start) != nilfs_get_segnum_of_block(nilfs, ri->ri_super_root)) return; @@ -750,6 +763,8 @@ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs, if (ri->ri_lsegs_start == 0 || ri->ri_lsegs_end == 0) return 0; + pr_debug("NILFS: nilfs_salvage_orphan_logs\n"); + err = nilfs_attach_checkpoint(sb, ri->ri_cno, true, &root); if (unlikely(err)) { printk(KERN_ERR @@ -831,6 +846,10 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, cno = nilfs->ns_last_cno; segnum = nilfs_get_segnum_of_block(nilfs, pseg_start); + pr_debug("NILFS: nilfs_search_super_root\n"); + pr_debug("NILFS: pseg_start %lld, seg_seq %lld\n", pseg_start, seg_seq); + pr_debug("NILFS: cno %lld, segnum %lld\n", cno, segnum); + /* Calculate range of segment */ nilfs_get_segment_range(nilfs, segnum, &seg_start, &seg_end); -- 1.7.9.5