Re: [PATCH v7] f2fs: unify the error handling of f2fs_is_valid_blkaddr
From: Chao Yu
Date: Mon Feb 05 2024 - 22:36:34 EST
On 2024/2/6 11:32, Jaegeuk Kim wrote:
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@xxxxxxxxxx>
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
---
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@xxxxxxxxxx>
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.
How about calling f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR) inside
__is_bitmap_valid()? so that we may not add such logic outside
__is_bitmap_valid()...
Thanks,
}
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;
}