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From:   Zhiguo Niu <zhiguo.niu@unisoc.com>
To:     <jaegeuk@kernel.org>, <chao@kernel.org>
CC:     <linux-f2fs-devel@lists.sourceforge.net>,
        <linux-kernel@vger.kernel.org>, <niuzhiguo84@gmail.com>,
        <zhiguo.niu@unisoc.com>, <ke.wang@unisoc.com>
Subject: [PATCH V2] f2fs: unify the error handling of f2fs_is_valid_blkaddr
Date:   Tue, 12 Dec 2023 13:23:23 +0800
Message-ID: <1702358603-26270-1-git-send-email-zhiguo.niu@unisoc.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

unify the error handling of ERROR_INVALID_BLKADDR in f2fs_is_valid_blkaddr
and remove some redundant codes in f2fs_cache_compressed_page.

Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
---
changes of v2: improve patch according Chao's suggestions.
---
---
 fs/f2fs/checkpoint.c   | 43 +++++++++++++++++++++++--------------------
 fs/f2fs/compress.c     |  4 ----
 fs/f2fs/data.c         | 24 ++++--------------------
 fs/f2fs/extent_cache.c |  7 ++-----
 fs/f2fs/f2fs.h         |  5 ++---
 fs/f2fs/file.c         | 17 +++++------------
 fs/f2fs/gc.c           |  2 --
 fs/f2fs/inode.c        |  5 ++---
 fs/f2fs/node.c         |  2 +-
 fs/f2fs/recovery.c     | 13 ++++++-------
 fs/f2fs/segment.c      |  2 --
 11 files changed, 45 insertions(+), 79 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index b0597a5..d8ff056 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -154,19 +154,17 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
 	if (unlikely(f2fs_cp_error(sbi)))
 		return exist;
 
-	if (exist && type == DATA_GENERIC_ENHANCE_UPDATE) {
-		f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
-			 blkaddr, exist);
-		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		return exist;
-	}
+	if ((exist && type == DATA_GENERIC_ENHANCE_UPDATE) ||
+			(!exist && type == DATA_GENERIC_ENHANCE))
+		goto err;
 
-	if (!exist && type == DATA_GENERIC_ENHANCE) {
-		f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
-			 blkaddr, exist);
-		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		dump_stack();
-	}
+	return exist;
+err:
+	f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
+		blkaddr, exist);
+	set_sbi_flag(sbi, SBI_NEED_FSCK);
+	dump_stack();
+	f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 	return exist;
 }
 
@@ -174,29 +172,29 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type)
 {
 	if (time_to_inject(sbi, FAULT_BLKADDR))
-		return false;
+		goto err;
 
 	switch (type) {
 	case META_NAT:
 		break;
 	case META_SIT:
 		if (unlikely(blkaddr >= SIT_BLK_CNT(sbi)))
-			return false;
+			goto err;
 		break;
 	case META_SSA:
 		if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) ||
 			blkaddr < SM_I(sbi)->ssa_blkaddr))
-			return false;
+			goto err;
 		break;
 	case META_CP:
 		if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr ||
 			blkaddr < __start_cp_addr(sbi)))
-			return false;
+			goto err;
 		break;
 	case META_POR:
 		if (unlikely(blkaddr >= MAX_BLKADDR(sbi) ||
 			blkaddr < MAIN_BLKADDR(sbi)))
-			return false;
+			goto err;
 		break;
 	case DATA_GENERIC:
 	case DATA_GENERIC_ENHANCE:
@@ -213,7 +211,7 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 				  blkaddr);
 			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			dump_stack();
-			return false;
+			goto err;
 		} else {
 			return __is_bitmap_valid(sbi, blkaddr, type);
 		}
@@ -221,13 +219,16 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 	case META_GENERIC:
 		if (unlikely(blkaddr < SEG0_BLKADDR(sbi) ||
 			blkaddr >= MAIN_BLKADDR(sbi)))
-			return false;
+			goto err;
 		break;
 	default:
 		BUG();
 	}
 
 	return true;
+err:
+	f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+	return false;
 }
 
 /*
@@ -256,8 +257,10 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
 	blk_start_plug(&plug);
 	for (; nrpages-- > 0; blkno++) {
 
-		if (!f2fs_is_valid_blkaddr(sbi, blkno, type))
+		if (!f2fs_is_valid_blkaddr(sbi, blkno, type)) {
+			err = -EFSCORRUPTED;
 			goto out;
+		}
 
 		switch (type) {
 		case META_NAT:
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 36e5dab..bd5acb5 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1878,12 +1878,8 @@ void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
 
 	set_page_private_data(cpage, ino);
 
-	if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE_READ))
-		goto out;
-
 	memcpy(page_address(cpage), page_address(page), PAGE_SIZE);
 	SetPageUptodate(cpage);
-out:
 	f2fs_put_page(cpage, 1);
 }
 
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 4e42b5f..14b6ea2 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -740,10 +740,8 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
 
 	if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
 			fio->is_por ? META_POR : (__is_meta_io(fio) ?
-			META_GENERIC : DATA_GENERIC_ENHANCE))) {
-		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
+			META_GENERIC : DATA_GENERIC_ENHANCE)))
 		return -EFSCORRUPTED;
-	}
 
 	trace_f2fs_submit_page_bio(page, fio);
 
@@ -948,10 +946,8 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
 			fio->encrypted_page : fio->page;
 
 	if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
-			__is_meta_io(fio) ? META_GENERIC : DATA_GENERIC)) {
-		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
+			__is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
 		return -EFSCORRUPTED;
-	}
 
 	trace_f2fs_submit_page_bio(page, fio);
 
@@ -1293,8 +1289,6 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ)) {
 			err = -EFSCORRUPTED;
-			f2fs_handle_error(F2FS_I_SB(inode),
-						ERROR_INVALID_BLKADDR);
 			goto put_err;
 		}
 		goto got_it;
@@ -1320,8 +1314,6 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 						dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
-		f2fs_handle_error(F2FS_I_SB(inode),
-					ERROR_INVALID_BLKADDR);
 		goto put_err;
 	}
 got_it:
@@ -1651,7 +1643,6 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag)
 	if (!is_hole &&
 	    !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
-		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		goto sync_out;
 	}
 
@@ -2175,8 +2166,6 @@ static int f2fs_read_single_page(struct inode *inode, struct page *page,
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
 						DATA_GENERIC_ENHANCE_READ)) {
 			ret = -EFSCORRUPTED;
-			f2fs_handle_error(F2FS_I_SB(inode),
-						ERROR_INVALID_BLKADDR);
 			goto out;
 		}
 	} else {
@@ -2309,7 +2298,7 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
 			break;
 
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC)) {
-			ret = -EFAULT;
+			ret = -EFSCORRUPTED;
 			goto out_put_dnode;
 		}
 		cc->nr_cpages++;
@@ -2719,11 +2708,8 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
 	    f2fs_lookup_read_extent_cache_block(inode, page->index,
 						&fio->old_blkaddr)) {
 		if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
-						DATA_GENERIC_ENHANCE)) {
-			f2fs_handle_error(fio->sbi,
-						ERROR_INVALID_BLKADDR);
+						DATA_GENERIC_ENHANCE))
 			return -EFSCORRUPTED;
-		}
 
 		ipu_force = true;
 		fio->need_lock = LOCK_DONE;
@@ -2751,7 +2737,6 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
 		!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
-		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
 		goto out_writepage;
 	}
 
@@ -3718,7 +3703,6 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
 				DATA_GENERIC_ENHANCE_READ)) {
 			err = -EFSCORRUPTED;
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto fail;
 		}
 		err = f2fs_submit_page_read(use_cow ?
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index ad8dfac7..99d0442 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -43,7 +43,6 @@ bool sanity_check_extent_cache(struct inode *inode)
 	if (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC_ENHANCE) ||
 	    !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
 					DATA_GENERIC_ENHANCE)) {
-		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
 			  __func__, inode->i_ino,
 			  ei->blk, ei->fofs, ei->len);
@@ -856,10 +855,8 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei,
 		goto out;
 
 	if (__is_valid_data_blkaddr(blkaddr) &&
-	    !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
-		f2fs_bug_on(sbi, 1);
-		return -EINVAL;
-	}
+	    !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
+		return -EFSCORRUPTED;
 out:
 	/*
 	 * init block age with zero, this can happen when the block age extent
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9043ced..e36630c 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3454,14 +3454,13 @@ static inline int get_inline_xattr_addrs(struct inode *inode)
 
 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type);
+
 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type)
 {
-	if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
+	if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type))
 		f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
 			 blkaddr, type);
-		f2fs_bug_on(sbi, 1);
-	}
 }
 
 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index e503635..3d193a3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -416,7 +416,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 	pgoff_t pgofs, end_offset;
 	loff_t data_ofs = offset;
 	loff_t isize;
-	int err = 0;
+	int err = -ENXIO;
 
 	inode_lock(inode);
 
@@ -466,6 +466,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 				!f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
 					blkaddr, DATA_GENERIC_ENHANCE)) {
 				f2fs_put_dnode(&dn);
+				err = -EFSCORRUPTED;
 				goto fail;
 			}
 
@@ -487,7 +488,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 	return vfs_setpos(file, data_ofs, maxbytes);
 fail:
 	inode_unlock(inode);
-	return -ENXIO;
+	return err;
 }
 
 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
@@ -1197,7 +1198,6 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
 			!f2fs_is_valid_blkaddr(sbi, *blkaddr,
 					DATA_GENERIC_ENHANCE)) {
 			f2fs_put_dnode(&dn);
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			return -EFSCORRUPTED;
 		}
 
@@ -1482,7 +1482,6 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 		if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr,
 					DATA_GENERIC_ENHANCE)) {
 			ret = -EFSCORRUPTED;
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			break;
 		}
 
@@ -3438,10 +3437,8 @@ static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
 		if (!__is_valid_data_blkaddr(blkaddr))
 			continue;
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
-					DATA_GENERIC_ENHANCE))) {
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+					DATA_GENERIC_ENHANCE)))
 			return -EFSCORRUPTED;
-		}
 	}
 
 	while (count) {
@@ -3604,10 +3601,8 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
 		if (!__is_valid_data_blkaddr(blkaddr))
 			continue;
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
-					DATA_GENERIC_ENHANCE))) {
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+					DATA_GENERIC_ENHANCE)))
 			return -EFSCORRUPTED;
-		}
 	}
 
 	while (count) {
@@ -3879,8 +3874,6 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 						DATA_GENERIC_ENHANCE)) {
 				ret = -EFSCORRUPTED;
 				f2fs_put_dnode(&dn);
-				f2fs_handle_error(sbi,
-						ERROR_INVALID_BLKADDR);
 				goto out;
 			}
 
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index f550cde..2f16f7a 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1197,7 +1197,6 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ))) {
 			err = -EFSCORRUPTED;
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto put_page;
 		}
 		goto got_it;
@@ -1216,7 +1215,6 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
 	if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE))) {
 		err = -EFSCORRUPTED;
-		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		goto put_page;
 	}
 got_it:
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 560bfca..05bfb36 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -83,10 +83,9 @@ static int __written_first_block(struct f2fs_sb_info *sbi,
 
 	if (!__is_valid_data_blkaddr(addr))
 		return 1;
-	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) {
-		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
 		return -EFSCORRUPTED;
-	}
+
 	return 0;
 }
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 6c7f6a6..f6c9cef 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -612,7 +612,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
 	blkaddr = le32_to_cpu(ne.block_addr);
 	if (__is_valid_data_blkaddr(blkaddr) &&
 		!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
-		return -EFAULT;
+		return -EFSCORRUPTED;
 
 	/* cache nat entry */
 	cache_nat_entry(sbi, nid, &ne);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index b56d0f1..1a322bb 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -374,7 +374,7 @@ static int sanity_check_node_chain(struct f2fs_sb_info *sbi, block_t blkaddr,
 	for (i = 0; i < 2; i++) {
 		if (!f2fs_is_valid_blkaddr(sbi, *blkaddr_fast, META_POR)) {
 			*is_detecting = false;
-			return 0;
+			return -EFSCORRUPTED;
 		}
 
 		page = f2fs_get_tmp_page(sbi, *blkaddr_fast);
@@ -399,6 +399,7 @@ static int sanity_check_node_chain(struct f2fs_sb_info *sbi, block_t blkaddr,
 	if (*blkaddr_fast == blkaddr) {
 		f2fs_notice(sbi, "%s: Detect looped node chain on blkaddr:%u."
 				" Run fsck to fix it.", __func__, blkaddr);
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		return -EINVAL;
 	}
 	return 0;
@@ -422,7 +423,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
 		struct fsync_inode_entry *entry;
 
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR))
-			return 0;
+			return -EFSCORRUPTED;
 
 		page = f2fs_get_tmp_page(sbi, blkaddr);
 		if (IS_ERR(page)) {
@@ -680,14 +681,12 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 		if (__is_valid_data_blkaddr(src) &&
 			!f2fs_is_valid_blkaddr(sbi, src, META_POR)) {
 			err = -EFSCORRUPTED;
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto err;
 		}
 
 		if (__is_valid_data_blkaddr(dest) &&
 			!f2fs_is_valid_blkaddr(sbi, dest, META_POR)) {
 			err = -EFSCORRUPTED;
-			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto err;
 		}
 
@@ -745,8 +744,6 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 				f2fs_err(sbi, "Inconsistent dest blkaddr:%u, ino:%lu, ofs:%u",
 					dest, inode->i_ino, dn.ofs_in_node);
 				err = -EFSCORRUPTED;
-				f2fs_handle_error(sbi,
-						ERROR_INVALID_BLKADDR);
 				goto err;
 			}
 
@@ -786,8 +783,10 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
 	while (1) {
 		struct fsync_inode_entry *entry;
 
-		if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR))
+		if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR)) {
+			err = -EFSCORRUPTED;
 			break;
+		}
 
 		page = f2fs_get_tmp_page(sbi, blkaddr);
 		if (IS_ERR(page)) {
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 727d016..e427c3c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -334,8 +334,6 @@ static int __f2fs_commit_atomic_write(struct inode *inode)
 					DATA_GENERIC_ENHANCE)) {
 				f2fs_put_dnode(&dn);
 				ret = -EFSCORRUPTED;
-				f2fs_handle_error(sbi,
-						ERROR_INVALID_BLKADDR);
 				goto out;
 			}
 
-- 
1.9.1