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Date: Tue, 30 Jan 2024 09:01:49 +0800
From: Zhiguo Niu <niuzhiguo84@...il.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: Zhiguo Niu <zhiguo.niu@...soc.com>, chao@...nel.org,
linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
ke.wang@...soc.com, hongyu.jin@...soc.com
Subject: Re: [PATCH v4] f2fs: unify the error handling of f2fs_is_valid_blkaddr
On Tue, Jan 30, 2024 at 8:46 AM Zhiguo Niu <niuzhiguo84@...il.com> wrote:
>
> Hi Jaegeuk,
> Thanks for your suggestion,the following is my comment.
>
> On Tue, Jan 30, 2024 at 3:53 AM Jaegeuk Kim <jaegeuk@...nel.org> wrote:
> >
> > On 01/23, Zhiguo Niu wrote:
> > > There are some cases of f2fs_is_valid_blkaddr not handled as
> > > ERROR_INVALID_BLKADDR,so unify the error handling about all of
> > > f2fs_is_valid_blkaddr.
> > >
> > > Signed-off-by: Zhiguo Niu <zhiguo.niu@...soc.com>
> > > ---
> > > changes of v2: improve patch according Chao's suggestions.
> > > changes of v3:
> > > -rebase patch to dev-test
> > > -correct return value for some f2fs_is_valid_blkaddr error case
> > > changes of v4: update according to the latest code
> > > ---
> > > ---
> > > fs/f2fs/checkpoint.c | 37 +++++++++++++++++++------------------
> > > fs/f2fs/data.c | 24 ++++--------------------
> > > fs/f2fs/extent_cache.c | 7 ++-----
> > > fs/f2fs/file.c | 16 +++-------------
> > > fs/f2fs/gc.c | 2 --
> > > fs/f2fs/node.c | 2 +-
> > > fs/f2fs/recovery.c | 4 ----
> > > fs/f2fs/segment.c | 2 --
> > > 8 files changed, 29 insertions(+), 65 deletions(-)
> > >
> > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > > index b85820e..b9bafd7 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 (unlikely((exist && type == DATA_GENERIC_ENHANCE_UPDATE) ||
> > (!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();
> >
> > f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > ^-- remove and done by caller below.
>
> The original logic of __is_bitmap_valid is to return the result
> directly , so f2fs_handle_error in
> its caller(__f2fs_is_valid_blkaddr) cannot be executed.
>
> > }
> > return exist;
> >
> > >
> > > - 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;
> > > }
> > >
> > > @@ -178,22 +176,22 @@ static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
> > > 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:
> > > @@ -210,7 +208,7 @@ static 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);
> >
> > if (!__is_bitmap_valid())
> > goto err;
sorry I miss these codes in the previous e-mail， thiis can not cover
the case __is_bitmap_valid
return true of (type==DATA_GENERIC_ENHANCE_UPDATE && related blkaddr
bitmap exist in se->cur_valid_map)
> >
> > > }
> > > @@ -218,13 +216,16 @@ static 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;
> > > }
> > >
> > > bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
> > > diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> > > index 65fe48b..0f9a657 100644
> > > --- a/fs/f2fs/data.c
> > > +++ b/fs/f2fs/data.c
> > > @@ -738,10 +738,8 @@ 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);
> > >
> > > @@ -946,10 +944,8 @@ 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);
> > >
> > > @@ -1287,8 +1283,6 @@ 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;
> > > @@ -1314,8 +1308,6 @@ 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:
> > > @@ -1643,7 +1635,6 @@ 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;
> > > }
> > >
> > > @@ -2167,8 +2158,6 @@ 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 {
> > > @@ -2301,7 +2290,7 @@ 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;
> >
> > I'd prefer not to change anything.
> OK~
> >
> > > goto out_put_dnode;
> > > }
> > > cc->nr_cpages++;
> > > @@ -2708,11 +2697,8 @@ 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;
> > > @@ -2740,7 +2726,6 @@ 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;
> > > }
> > >
> > > @@ -3707,7 +3692,6 @@ 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);
> >
> > Why do you remove this?
> there are 2 cases for f2fs_is_valid_blkaddr return false,
> one case is blkaddr is invalid so f2fs_is_valid_blkaddr will do
> set_sbi_flag(sbi, SBI_NEED_FSCK);
> another case is cp_err, and sanity_check_extent_cache also has do
> sanity check this case above the code
> f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC_ENHANCE);
> >
> > > 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;
> >
> > Let's keep EINVAL first.
> OK~
> >
> > > out:
> > > /*
> > > * init block age with zero, this can happen when the block age extent
> > > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> > > index 25b119cf..23cd6a1 100644
> > > --- a/fs/f2fs/file.c
> > > +++ b/fs/f2fs/file.c
> > > @@ -593,10 +593,8 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
> > > if (time_to_inject(sbi, FAULT_BLKADDR_CONSISTENCE))
> > > continue;
> > > if (!f2fs_is_valid_blkaddr_raw(sbi, blkaddr,
> > > - DATA_GENERIC_ENHANCE)) {
> > > - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
> > > + DATA_GENERIC_ENHANCE))
> > > continue;
> > > - }
> > > if (compressed_cluster)
> > > valid_blocks++;
> > > }
> > > @@ -1196,7 +1194,6 @@ 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 +1479,6 @@ 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;
> > > }
> > >
> > > @@ -3442,10 +3438,8 @@ 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) {
> > > @@ -3607,10 +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) {
> > > @@ -3894,8 +3886,6 @@ 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 a079eeb..30e93d8 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/node.c b/fs/f2fs/node.c
> > > index 9b546fd..541c4ad 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;
> >
> > Ditto.
> OK~
> >
> > >
> > > /* cache nat entry */
> > > cache_nat_entry(sbi, nid, &ne);
> > > diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> > > index d0f24cc..21381b7 100644
> > > --- a/fs/f2fs/recovery.c
> > > +++ b/fs/f2fs/recovery.c
> > > @@ -680,14 +680,12 @@ 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;
> > > }
> > >
> > > @@ -756,8 +754,6 @@ 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;
> > > }
> > >
> > > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> > > index 7901ede..ad6511f 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
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