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Message-ID: <20250627025944.152334-1-chao@kernel.org>
Date: Fri, 27 Jun 2025 10:59:43 +0800
From: Chao Yu <chao@...nel.org>
To: jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org,
Chao Yu <chao@...nel.org>
Subject: [PATCH] f2fs: account and print more stats during recovery
F2FS-fs (vdc): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
F2FS-fs (vdc): do_recover_data: start to recover dnode
F2FS-fs (vdc): recover_inode: ino = 5, name = testfile.t2, inline = 21
F2FS-fs (vdc): recover_data: ino = 5, nid = 5 (i_size: recover), range (0, 864), recovered = 1, err = 0
F2FS-fs (vdc): do_recover_data: dnode: (recoverable: 256, fsynced: 256, total: 256), recovered: (inode: 256, dentry: 1, dnode: 256), err: 0
Signed-off-by: Chao Yu <chao@...nel.org>
---
fs/f2fs/recovery.c | 38 +++++++++++++++++++++++++++++++-------
1 file changed, 31 insertions(+), 7 deletions(-)
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 51ebed4e1521..f7d2fc86aeb1 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -624,7 +624,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
{
struct dnode_of_data dn;
struct node_info ni;
- unsigned int start, end;
+ unsigned int start = 0, end = 0, index;
int err = 0, recovered = 0;
/* step 1: recover xattr */
@@ -679,7 +679,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
goto err;
}
- for (; start < end; start++, dn.ofs_in_node++) {
+ for (index = start; index < end; index++, dn.ofs_in_node++) {
block_t src, dest;
src = f2fs_data_blkaddr(&dn);
@@ -708,9 +708,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
}
if (!file_keep_isize(inode) &&
- (i_size_read(inode) <= ((loff_t)start << PAGE_SHIFT)))
+ (i_size_read(inode) <= ((loff_t)index << PAGE_SHIFT)))
f2fs_i_size_write(inode,
- (loff_t)(start + 1) << PAGE_SHIFT);
+ (loff_t)(index + 1) << PAGE_SHIFT);
/*
* dest is reserved block, invalidate src block
@@ -765,9 +765,11 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
err:
f2fs_put_dnode(&dn);
out:
- f2fs_notice(sbi, "recover_data: ino = %lx (i_size: %s) recovered = %d, err = %d",
- inode->i_ino, file_keep_isize(inode) ? "keep" : "recover",
- recovered, err);
+ f2fs_notice(sbi, "recover_data: ino = %lx, nid = %x (i_size: %s), "
+ "range (%u, %u), recovered = %d, err = %d",
+ inode->i_ino, nid_of_node(&folio->page),
+ file_keep_isize(inode) ? "keep" : "recover",
+ start, end, recovered, err);
return err;
}
@@ -778,6 +780,14 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
int err = 0;
block_t blkaddr;
unsigned int ra_blocks = RECOVERY_MAX_RA_BLOCKS;
+ unsigned int recoverable_dnode = 0;
+ unsigned int fsynced_dnode = 0;
+ unsigned int total_dnode = 0;
+ unsigned int recovered_inode = 0;
+ unsigned int recovered_dentry = 0;
+ unsigned int recovered_dnode = 0;
+
+ f2fs_notice(sbi, "do_recover_data: start to recover dnode");
/* get node pages in the current segment */
curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
@@ -800,10 +810,12 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
f2fs_folio_put(folio, true);
break;
}
+ recoverable_dnode++;
entry = get_fsync_inode(inode_list, ino_of_node(&folio->page));
if (!entry)
goto next;
+ fsynced_dnode++;
/*
* inode(x) | CP | inode(x) | dnode(F)
* In this case, we can lose the latest inode(x).
@@ -815,6 +827,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
f2fs_folio_put(folio, true);
break;
}
+ recovered_inode++;
}
if (entry->last_dentry == blkaddr) {
err = recover_dentry(entry->inode, &folio->page, dir_list);
@@ -822,12 +835,14 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
f2fs_folio_put(folio, true);
break;
}
+ recovered_dentry++;
}
err = do_recover_data(sbi, entry->inode, folio);
if (err) {
f2fs_folio_put(folio, true);
break;
}
+ recovered_dnode++;
if (entry->blkaddr == blkaddr)
list_move_tail(&entry->list, tmp_inode_list);
@@ -840,9 +855,15 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
f2fs_folio_put(folio, true);
f2fs_ra_meta_pages_cond(sbi, blkaddr, ra_blocks);
+ total_dnode++;
}
if (!err)
err = f2fs_allocate_new_segments(sbi);
+
+ f2fs_notice(sbi, "do_recover_data: dnode: (recoverable: %u, fsynced: %u, "
+ "total: %u), recovered: (inode: %u, dentry: %u, dnode: %u), err: %d",
+ recoverable_dnode, fsynced_dnode, total_dnode, recovered_inode,
+ recovered_dentry, recovered_dnode, err);
return err;
}
@@ -855,6 +876,9 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
unsigned long s_flags = sbi->sb->s_flags;
bool need_writecp = false;
+ f2fs_notice(sbi, "f2fs_recover_fsync_data: recovery fsync data, "
+ "check_only: %d", check_only);
+
if (is_sbi_flag_set(sbi, SBI_IS_WRITABLE))
f2fs_info(sbi, "recover fsync data on readonly fs");
--
2.49.0
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