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Date: Tue, 12 Dec 2023 09:51:24 +0800
From: Zhiguo Niu <niuzhiguo84@...il.com>
To: Chao Yu <chao@...nel.org>
Cc: Zhiguo Niu <zhiguo.niu@...soc.com>, jaegeuk@...nel.org,
linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, ke.wang@...soc.com
Subject: Re: [PATCH] f2fs: unify the error handling of f2fs_is_valid_blkaddr
Dear Chao
On Tue, Dec 12, 2023 at 9:32 AM Chao Yu <chao@...nel.org> wrote:
>
> On 2023/12/1 13:42, Zhiguo Niu wrote:
> > unify the error handling of f2fs_is_valid_blkaddr and remove some
> > redundant codes in f2fs_cache_compressed_page.
>
> What about moving f2fs_handle_error(ERROR_INVALID_BLKADDR) into
> f2fs_is_valid_blkaddr() for cleanup?
Thanks for your suggestion and I think it is a good opinion. I will
update this patch.
>
> Thanks,
>
> >
> > Signed-off-by: Zhiguo Niu <zhiguo.niu@...soc.com>
> > ---
> > fs/f2fs/checkpoint.c | 6 +++++-
> > fs/f2fs/compress.c | 8 +++-----
> > fs/f2fs/data.c | 3 ++-
> > fs/f2fs/extent_cache.c | 7 ++++---
> > fs/f2fs/f2fs.h | 6 ++++--
> > fs/f2fs/file.c | 10 +++++++---
> > fs/f2fs/node.c | 7 +++++--
> > fs/f2fs/recovery.c | 15 +++++++++++----
> > 8 files changed, 41 insertions(+), 21 deletions(-)
> >
> > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > index b0597a5..47a1335 100644
> > --- a/fs/f2fs/checkpoint.c
> > +++ b/fs/f2fs/checkpoint.c
> > @@ -158,6 +158,7 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
> > f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
> > blkaddr, exist);
> > set_sbi_flag(sbi, SBI_NEED_FSCK);
> > + dump_stack();
> > return exist;
> > }
> >
> > @@ -256,8 +257,11 @@ 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;
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > goto out;
> > + }
> >
> > switch (type) {
> > case META_NAT:
> > diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
> > index 36e5dab..15d5035 100644
> > --- a/fs/f2fs/compress.c
> > +++ b/fs/f2fs/compress.c
> > @@ -1853,8 +1853,10 @@ void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
> > if (!test_opt(sbi, COMPRESS_CACHE))
> > return;
> >
> > - if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE_READ))
> > + if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE_READ)) {
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > return;
> > + }
> >
> > if (!f2fs_available_free_memory(sbi, COMPRESS_PAGE))
> > return;
> > @@ -1878,12 +1880,8 @@ 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..e1a37ea 100644
> > --- a/fs/f2fs/data.c
> > +++ b/fs/f2fs/data.c
> > @@ -2309,7 +2309,8 @@ 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;
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > goto out_put_dnode;
> > }
> > cc->nr_cpages++;
> > diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
> > index ad8dfac7..33e5632 100644
> > --- a/fs/f2fs/extent_cache.c
> > +++ b/fs/f2fs/extent_cache.c
> > @@ -43,7 +43,7 @@ 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_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > 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);
> > @@ -857,8 +857,9 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei,
> >
> > if (__is_valid_data_blkaddr(blkaddr) &&
> > !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
> > - f2fs_bug_on(sbi, 1);
> > - return -EINVAL;
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > + return -EFSCORRUPTED;
> > +
> > }
> > out:
> > /*
> > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> > index 9043ced..a4b8d86 100644
> > --- a/fs/f2fs/f2fs.h
> > +++ b/fs/f2fs/f2fs.h
> > @@ -3454,13 +3454,16 @@ 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);
> > +void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
> > +
> > static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
> > block_t blkaddr, int 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);
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > +
> > }
> > }
> >
> > @@ -3587,7 +3590,6 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
> > void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag);
> > void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
> > bool irq_context);
> > -void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
> > void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error);
> > int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
> > int f2fs_sync_fs(struct super_block *sb, int sync);
> > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> > index e503635..5a7dd87 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 +466,8 @@ 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;
> > + f2fs_handle_error(F2FS_I_SB(inode), ERROR_INVALID_BLKADDR);
> > goto fail;
> > }
> >
> > @@ -487,7 +489,7 @@ 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)
> > @@ -593,8 +595,10 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
> >
> > if (__is_valid_data_blkaddr(blkaddr)) {
> > if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
> > - DATA_GENERIC_ENHANCE))
> > + DATA_GENERIC_ENHANCE)) {
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > continue;
> > + }
> > if (compressed_cluster)
> > valid_blocks++;
> > }
> > diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
> > index 6c7f6a6..e50a093 100644
> > --- a/fs/f2fs/node.c
> > +++ b/fs/f2fs/node.c
> > @@ -611,8 +611,10 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
> > cache:
> > blkaddr = le32_to_cpu(ne.block_addr);
> > if (__is_valid_data_blkaddr(blkaddr) &&
> > - !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
> > - return -EFAULT;
> > + !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > + return -EFSCORRUPTED;
> > + }
> >
> > /* cache nat entry */
> > cache_nat_entry(sbi, nid, &ne);
> > @@ -1652,6 +1654,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
> > if (__is_valid_data_blkaddr(ni.blk_addr) &&
> > !f2fs_is_valid_blkaddr(sbi, ni.blk_addr,
> > DATA_GENERIC_ENHANCE)) {
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > f2fs_up_read(&sbi->node_write);
> > goto redirty_out;
> > }
> > diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> > index b56d0f1..1244b8e 100644
> > --- a/fs/f2fs/recovery.c
> > +++ b/fs/f2fs/recovery.c
> > @@ -374,7 +374,8 @@ 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;
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > + return -EFSCORRUPTED;
> > }
> >
> > page = f2fs_get_tmp_page(sbi, *blkaddr_fast);
> > @@ -399,6 +400,7 @@ 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;
> > @@ -421,8 +423,10 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
> > while (1) {
> > struct fsync_inode_entry *entry;
> >
> > - if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR))
> > - return 0;
> > + if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR)) {
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > + return -EFSCORRUPTED;
> > + }
> >
> > page = f2fs_get_tmp_page(sbi, blkaddr);
> > if (IS_ERR(page)) {
> > @@ -786,8 +790,11 @@ 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;
> > + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > break;
> > + }
> >
> > page = f2fs_get_tmp_page(sbi, blkaddr);
> > if (IS_ERR(page)) {
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