| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <ZcGoWAsl08d5-U0g@google.com>
Date: Mon, 5 Feb 2024 19:32:40 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Chao Yu <chao@...nel.org>
Cc: Zhiguo Niu <zhiguo.niu@...soc.com>,
linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, niuzhiguo84@...il.com,
ke.wang@...soc.com, hongyu.jin@...soc.com
Subject: Re: [PATCH v7] f2fs: unify the error handling of
f2fs_is_valid_blkaddr
On 02/05, Chao Yu wrote:
> On 2024/2/5 11:30, 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>
> > Signed-off-by: Chao Yu <chao@...nel.org>
> > ---
> > changes of v7: update patch according to sync with Chao
> > -restore some code to original
> > -modify err handle of __is_bitmap_valid for covering all cases
> > changes of v6: improve patch according to Chao's suggestions
> > -restore dump_stack to original position
> > -adjuest code sequence of __is_bitmap_check_valid
> > changes of v5: improve patch according to Jaegeuk's suggestiongs
> > -restore return value of some f2fs_is_valid_blkaddr error case to original
> > -move cp_err checking to outermost for unified processing
> > -return true directly for case (type=DATA_GENERIC_ENHANCE_READ) in
> > __is_bitmap_valid to avoid meaningless flow
> > -rename __is_bitmap_valid to __is_bitmap_check_valid for avoiding ambiguity
> > and handling its return value in the caller uniformly, also cooperate
> > switch checking true to false for error case of
> > f2fs_is_valid_blkaddr(type=DATA_GENERIC_ENHANCE_UPDATE) in do_recover_data
> > for more readable
> > changes of v4: update according to the latest code
> > changes of v3:
> > -rebase patch to dev-test
> > -correct return value for some f2fs_is_valid_blkaddr error case
> > changes of v2: improve patch according Chao's suggestions.
> > ---
> > ---
> > fs/f2fs/checkpoint.c | 33 ++++++++++++++++++---------------
> > fs/f2fs/data.c | 22 +++-------------------
> > fs/f2fs/extent_cache.c | 5 +----
> > fs/f2fs/file.c | 16 +++-------------
> > fs/f2fs/gc.c | 2 --
> > fs/f2fs/recovery.c | 4 ----
> > fs/f2fs/segment.c | 2 --
> > 7 files changed, 25 insertions(+), 59 deletions(-)
> >
> > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > index b85820e..3335619 100644
> > --- a/fs/f2fs/checkpoint.c
> > +++ b/fs/f2fs/checkpoint.c
> > @@ -154,46 +154,43 @@ 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) {
> > + if ((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();
> > }
> > +
>
> No need to add one blank line.
>
> Otherwise, it looks good to me.
>
> Reviewed-by: Chao Yu <chao@...nel.org>
>
> Thanks,
>
> > return exist;
> > }
> > static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
> > block_t blkaddr, int type)
> > {
> > + bool valid = false;
> > +
> > 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:
> > @@ -210,21 +207,27 @@ 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);
> > + valid = __is_bitmap_valid(sbi, blkaddr, type);
> > + if ((!valid && type != DATA_GENERIC_ENHANCE_UPDATE) ||
> > + (valid && type == DATA_GENERIC_ENHANCE_UPDATE))
> > + goto err;
Please think about how to optimize this, which is really ugly now.
> > }
> > break;
> > 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 valid;
> > }
> > bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
> > diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> > index 05158f8..300f9ae 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);
> > @@ -1286,8 +1282,6 @@ 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;
> > @@ -1313,8 +1307,6 @@ 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:
> > @@ -1642,7 +1634,6 @@ 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;
> > }
> > @@ -2166,8 +2157,6 @@ 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 {
> > @@ -2707,11 +2696,8 @@ 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;
> > @@ -2739,7 +2725,6 @@ 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;
> > }
> > @@ -3706,7 +3691,6 @@ 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..48048fa 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);
> > + !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
> > return -EINVAL;
> > - }
> > 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/recovery.c b/fs/f2fs/recovery.c
> > index aad1d1a..289c0bf 100644
> > --- a/fs/f2fs/recovery.c
> > +++ b/fs/f2fs/recovery.c
> > @@ -693,14 +693,12 @@ 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;
> > }
> > @@ -755,8 +753,6 @@ 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;
> > }
Powered by blists - more mailing lists