f2fs: use generic EFSBADCRC/EFSCORRUPTED

f2fs uses EFAULT as error number to indicate filesystem is corrupted
all the time, but generic filesystems use EUCLEAN for such condition,
we need to change to follow others.

This patch adds two new macros as below to wrap more generic error
code macros, and spread them in code.

EFSBADCRC	EBADMSG		/* Bad CRC detected */
EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

14 files changed, 46 insertions, 37 deletions

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index a5ae1ef1a6d0..2d23671d2034 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -890,6 +890,7 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
 	unsigned int cp_blks = 1 + __cp_payload(sbi);
 	block_t cp_blk_no;
 	int i;
+	int err;
 
 	sbi->ckpt = f2fs_kzalloc(sbi, array_size(blk_size, cp_blks),
 				 GFP_KERNEL);
@@ -917,6 +918,7 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
 	} else if (cp2) {
 		cur_page = cp2;
 	} else {
+		err = -EFSCORRUPTED;
 		goto fail_no_cp;
 	}
 
@@ -929,8 +931,10 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
 		sbi->cur_cp_pack = 2;
 
 	/* Sanity checking of checkpoint */
-	if (f2fs_sanity_check_ckpt(sbi))
+	if (f2fs_sanity_check_ckpt(sbi)) {
+		err = -EFSCORRUPTED;
 		goto free_fail_no_cp;
+	}
 
 	if (cp_blks <= 1)
 		goto done;
@@ -944,8 +948,10 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
 		unsigned char *ckpt = (unsigned char *)sbi->ckpt;
 
 		cur_page = f2fs_get_meta_page(sbi, cp_blk_no + i);
-		if (IS_ERR(cur_page))
+		if (IS_ERR(cur_page)) {
+			err = PTR_ERR(cur_page);
 			goto free_fail_no_cp;
+		}
 		sit_bitmap_ptr = page_address(cur_page);
 		memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size);
 		f2fs_put_page(cur_page, 1);
@@ -960,7 +966,7 @@ free_fail_no_cp:
 	f2fs_put_page(cp2, 1);
 fail_no_cp:
 	kvfree(sbi->ckpt);
-	return -EINVAL;
+	return err;
 }
 
 static void __add_dirty_inode(struct inode *inode, enum inode_type type)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f4e1672bd96e..1e2d924e2ea7 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -455,7 +455,7 @@ 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)))
-		return -EFAULT;
+		return -EFSCORRUPTED;
 
 	trace_f2fs_submit_page_bio(page, fio);
 	f2fs_trace_ios(fio, 0);
@@ -489,7 +489,7 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
 
 	if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
 			__is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
-		return -EFAULT;
+		return -EFSCORRUPTED;
 
 	trace_f2fs_submit_page_bio(page, fio);
 	f2fs_trace_ios(fio, 0);
@@ -789,7 +789,7 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 		dn.data_blkaddr = ei.blk + index - ei.fofs;
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ)) {
-			err = -EFAULT;
+			err = -EFSCORRUPTED;
 			goto put_err;
 		}
 		goto got_it;
@@ -809,7 +809,7 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 			!f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
 						dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
-		err = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto put_err;
 	}
 got_it:
@@ -1155,7 +1155,7 @@ next_block:
 
 	if (__is_valid_data_blkaddr(blkaddr) &&
 		!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
-		err = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto sync_out;
 	}
 
@@ -1625,7 +1625,7 @@ got_it:
 
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
 						DATA_GENERIC_ENHANCE_READ)) {
-			ret = -EFAULT;
+			ret = -EFSCORRUPTED;
 			goto out;
 		}
 	} else {
@@ -1906,7 +1906,7 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
 
 		if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
 						DATA_GENERIC_ENHANCE))
-			return -EFAULT;
+			return -EFSCORRUPTED;
 
 		ipu_force = true;
 		fio->need_lock = LOCK_DONE;
@@ -1933,7 +1933,7 @@ got_it:
 	if (__is_valid_data_blkaddr(fio->old_blkaddr) &&
 		!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
-		err = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto out_writepage;
 	}
 	/*
@@ -2606,7 +2606,7 @@ repeat:
 	} else {
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
 				DATA_GENERIC_ENHANCE_READ)) {
-			err = -EFAULT;
+			err = -EFSCORRUPTED;
 			goto fail;
 		}
 		err = f2fs_submit_page_read(inode, page, blkaddr);
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 0e78edbb8e16..85a1528f319f 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -818,7 +818,7 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
 			f2fs_warn(sbi, "%s: corrupted namelen=%d, run fsck to fix.",
 				  __func__, le16_to_cpu(de->name_len));
 			set_sbi_flag(sbi, SBI_NEED_FSCK);
-			err = -EINVAL;
+			err = -EFSCORRUPTED;
 			goto out;
 		}
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8351fcfda309..d643f05cfa34 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3708,4 +3708,7 @@ static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
 	return false;
 }
 
+#define EFSBADCRC	EBADMSG		/* Bad CRC detected */
+#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
+
 #endif /* _LINUX_F2FS_H */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 51de1bc6faea..c67ff5057472 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1023,7 +1023,7 @@ next_dnode:
 			!f2fs_is_valid_blkaddr(sbi, *blkaddr,
 					DATA_GENERIC_ENHANCE)) {
 			f2fs_put_dnode(&dn);
-			return -EFAULT;
+			return -EFSCORRUPTED;
 		}
 
 		if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index c65f87f11de0..6691f526fa40 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -660,7 +660,7 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
 		dn.data_blkaddr = ei.blk + index - ei.fofs;
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ))) {
-			err = -EFAULT;
+			err = -EFSCORRUPTED;
 			goto put_page;
 		}
 		goto got_it;
@@ -678,7 +678,7 @@ 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 = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto put_page;
 	}
 got_it:
@@ -1454,7 +1454,7 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 
 	if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
 		f2fs_err(sbi, "Should run fsck to repair first.");
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 
 	if (test_opt(sbi, DISABLE_CHECKPOINT)) {
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 0d2764c9912d..3613efca8c00 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -142,7 +142,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
 		set_sbi_flag(fio.sbi, SBI_NEED_FSCK);
 		f2fs_warn(fio.sbi, "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
 			  __func__, dn->inode->i_ino, dn->data_blkaddr);
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 
 	f2fs_bug_on(F2FS_P_SB(page), PageWriteback(page));
@@ -383,7 +383,7 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
 		set_sbi_flag(F2FS_P_SB(page), SBI_NEED_FSCK);
 		f2fs_warn(F2FS_P_SB(page), "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
 			  __func__, dir->i_ino, dn.data_blkaddr);
-		err = -EINVAL;
+		err = -EFSCORRUPTED;
 		goto out;
 	}
 
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 9ea3aedb8213..a33d7a849b2d 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -74,7 +74,7 @@ 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))
-		return -EFAULT;
+		return -EFSCORRUPTED;
 	return 0;
 }
 
@@ -358,7 +358,7 @@ static int do_read_inode(struct inode *inode)
 
 	if (!sanity_check_inode(inode, node_page)) {
 		f2fs_put_page(node_page, 1);
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 
 	/* check data exist */
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 4d9b4c58d8a9..a18b2a895771 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -36,7 +36,7 @@ int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.",
 			  __func__, nid);
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 	return 0;
 }
@@ -1288,7 +1288,7 @@ static int read_node_page(struct page *page, int op_flags)
 	if (PageUptodate(page)) {
 		if (!f2fs_inode_chksum_verify(sbi, page)) {
 			ClearPageUptodate(page);
-			return -EBADMSG;
+			return -EFSBADCRC;
 		}
 		return LOCKED_PAGE;
 	}
@@ -1372,7 +1372,7 @@ repeat:
 	}
 
 	if (!f2fs_inode_chksum_verify(sbi, page)) {
-		err = -EBADMSG;
+		err = -EFSBADCRC;
 		goto out_err;
 	}
 page_hit:
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 72c2c4ba795f..783773e4560d 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -553,7 +553,7 @@ retry_dn:
 		f2fs_warn(sbi, "Inconsistent ofs_of_node, ino:%lu, ofs:%u, %u",
 			  inode->i_ino, ofs_of_node(dn.node_page),
 			  ofs_of_node(page));
-		err = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto err;
 	}
 
@@ -565,13 +565,13 @@ retry_dn:
 
 		if (__is_valid_data_blkaddr(src) &&
 			!f2fs_is_valid_blkaddr(sbi, src, META_POR)) {
-			err = -EFAULT;
+			err = -EFSCORRUPTED;
 			goto err;
 		}
 
 		if (__is_valid_data_blkaddr(dest) &&
 			!f2fs_is_valid_blkaddr(sbi, dest, META_POR)) {
-			err = -EFAULT;
+			err = -EFSCORRUPTED;
 			goto err;
 		}
 
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index ee96e6fb1a50..478284db3065 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2819,7 +2819,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
 
 	if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
 		f2fs_warn(sbi, "Found FS corruption, run fsck to fix.");
-		return -EIO;
+		return -EFSCORRUPTED;
 	}
 
 	/* start/end segment number in main_area */
@@ -3244,7 +3244,7 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		f2fs_warn(sbi, "%s: incorrect segment(%u) type, run fsck to fix.",
 			  __func__, segno);
-		return -EFAULT;
+		return -EFSCORRUPTED;
 	}
 
 	stat_inc_inplace_blocks(fio->sbi);
@@ -4153,7 +4153,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 			f2fs_err(sbi, "Wrong journal entry on segno %u",
 				 start);
 			set_sbi_flag(sbi, SBI_NEED_FSCK);
-			err = -EINVAL;
+			err = -EFSCORRUPTED;
 			break;
 		}
 
@@ -4193,7 +4193,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 		f2fs_err(sbi, "SIT is corrupted node# %u vs %u",
 			 total_node_blocks, valid_node_count(sbi));
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		err = -EINVAL;
+		err = -EFSCORRUPTED;
 	}
 
 	return err;
@@ -4311,7 +4311,7 @@ out:
 				 "Current segment's next free block offset is inconsistent with bitmap, logtype:%u, segno:%u, type:%u, next_blkoff:%u, blkofs:%u",
 				 i, curseg->segno, curseg->alloc_type,
 				 curseg->next_blkoff, blkofs);
-			return -EINVAL;
+			return -EFSCORRUPTED;
 		}
 	}
 	return 0;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 2ae6df03b998..b74602813a05 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -696,7 +696,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
 		f2fs_err(sbi, "Mismatch valid blocks %d vs. %d",
 			 GET_SIT_VBLOCKS(raw_sit), valid_blocks);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 
 	/* check segment usage, and check boundary of a given segment number */
@@ -705,7 +705,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
 		f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
 			 GET_SIT_VBLOCKS(raw_sit), segno);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		return -EINVAL;
+		return -EFSCORRUPTED;
 	}
 	return 0;
 }
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 2a40944d0810..3ac706506ca2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2846,7 +2846,7 @@ static int read_raw_super_block(struct f2fs_sb_info *sbi,
 		if (sanity_check_raw_super(sbi, bh)) {
 			f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
 				 block + 1);
-			err = -EINVAL;
+			err = -EFSCORRUPTED;
 			brelse(bh);
 			continue;
 		}
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index e791741d193b..963242018663 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -346,7 +346,7 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
 
 	*xe = __find_xattr(cur_addr, last_txattr_addr, index, len, name);
 	if (!*xe) {
-		err = -EFAULT;
+		err = -EFSCORRUPTED;
 		goto out;
 	}
 check:
@@ -622,7 +622,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 	/* find entry with wanted name. */
 	here = __find_xattr(base_addr, last_base_addr, index, len, name);
 	if (!here) {
-		error = -EFAULT;
+		error = -EFSCORRUPTED;
 		goto exit;
 	}