From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/fs/nilfs2/bmap.c | 20 ++++++++++++++------
1 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/kernel/fs/nilfs2/bmap.c b/kernel/fs/nilfs2/bmap.c
index fb5a9a8..8ebb69c 100644
--- a/kernel/fs/nilfs2/bmap.c
+++ b/kernel/fs/nilfs2/bmap.c
@@ -67,20 +67,28 @@
down_read(&bmap->b_sem);
ret = bmap->b_ops->bop_lookup(bmap, key, level, ptrp);
- if (ret < 0) {
- ret = nilfs_bmap_convert_error(bmap, __func__, ret);
+ if (ret < 0)
goto out;
- }
+
if (NILFS_BMAP_USE_VBN(bmap)) {
ret = nilfs_dat_translate(nilfs_bmap_get_dat(bmap), *ptrp,
&blocknr);
if (!ret)
*ptrp = blocknr;
+ else if (ret == -ENOENT) {
+ /*
+ * If there was no valid entry in DAT for the block
+ * address obtained by b_ops->bop_lookup, then pass
+ * internal code -EINVAL to nilfs_bmap_convert_error
+ * to treat it as metadata corruption.
+ */
+ ret = -EINVAL;
+ }
}
out:
up_read(&bmap->b_sem);
- return ret;
+ return nilfs_bmap_convert_error(bmap, __func__, ret);
}
int nilfs_bmap_lookup_contig(struct nilfs_bmap *bmap, __u64 key, __u64 *ptrp,
@@ -355,7 +363,7 @@
/**
* nilfs_bmap_assign - assign a new block number to a block
* @bmap: bmap
- * @bhp: pointer to buffer head
+ * @bh: pointer to buffer head
* @blocknr: block number
* @binfo: block information
*
@@ -519,7 +527,7 @@
break;
case NILFS_IFILE_INO:
lockdep_set_class(&bmap->b_sem, &nilfs_bmap_mdt_lock_key);
- /* Fall through */
+ fallthrough;
default:
bmap->b_ptr_type = NILFS_BMAP_PTR_VM;
bmap->b_last_allocated_key = 0;
--
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