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author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-11-19 15:26:20 +0900 |
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committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2011-01-10 14:05:45 +0900 |
commit | e828949e5b42bfd234ee537cdb7c5e3a577958a3 (patch) | |
tree | c2e259a3020acdb943669fb01e5a7dc5598a6fe9 /fs/nilfs2 | |
parent | b004a5eb0babec7ef91558f73315ef49e5a1f285 (diff) | |
download | kernel_samsung_tuna-e828949e5b42bfd234ee537cdb7c5e3a577958a3.zip kernel_samsung_tuna-e828949e5b42bfd234ee537cdb7c5e3a577958a3.tar.gz kernel_samsung_tuna-e828949e5b42bfd234ee537cdb7c5e3a577958a3.tar.bz2 |
nilfs2: call nilfs_error inside bmap routines
Some functions using nilfs bmap routines can wrongly return invalid
argument error (i.e. -EINVAL) that bmap returns as an internal code
for btree corruption.
This fixes the issue by catching and converting the internal EINVAL to
EIO and calling nilfs_error function inside bmap routines.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r-- | fs/nilfs2/bmap.c | 45 | ||||
-rw-r--r-- | fs/nilfs2/ifile.c | 11 | ||||
-rw-r--r-- | fs/nilfs2/inode.c | 19 | ||||
-rw-r--r-- | fs/nilfs2/mdt.c | 6 | ||||
-rw-r--r-- | fs/nilfs2/segment.c | 30 |
5 files changed, 48 insertions, 63 deletions
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c index 8b782b0..4b7aeb3 100644 --- a/fs/nilfs2/bmap.c +++ b/fs/nilfs2/bmap.c @@ -38,6 +38,19 @@ struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *bmap) return nilfs_dat_inode(NILFS_I_NILFS(bmap->b_inode)); } +static int nilfs_bmap_convert_error(struct nilfs_bmap *bmap, + const char *fname, int err) +{ + struct inode *inode = bmap->b_inode; + + if (err == -EINVAL) { + nilfs_error(inode->i_sb, fname, + "broken bmap (inode number=%lu)\n", inode->i_ino); + err = -EIO; + } + return err; +} + /** * nilfs_bmap_lookup_at_level - find a data block or node block * @bmap: bmap @@ -66,8 +79,10 @@ int nilfs_bmap_lookup_at_level(struct nilfs_bmap *bmap, __u64 key, int level, down_read(&bmap->b_sem); ret = bmap->b_ops->bop_lookup(bmap, key, level, ptrp); - if (ret < 0) + if (ret < 0) { + ret = nilfs_bmap_convert_error(bmap, __func__, ret); goto out; + } if (NILFS_BMAP_USE_VBN(bmap)) { ret = nilfs_dat_translate(nilfs_bmap_get_dat(bmap), *ptrp, &blocknr); @@ -88,7 +103,8 @@ int nilfs_bmap_lookup_contig(struct nilfs_bmap *bmap, __u64 key, __u64 *ptrp, down_read(&bmap->b_sem); ret = bmap->b_ops->bop_lookup_contig(bmap, key, ptrp, maxblocks); up_read(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } static int nilfs_bmap_do_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) @@ -144,7 +160,8 @@ int nilfs_bmap_insert(struct nilfs_bmap *bmap, down_write(&bmap->b_sem); ret = nilfs_bmap_do_insert(bmap, key, rec); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } static int nilfs_bmap_do_delete(struct nilfs_bmap *bmap, __u64 key) @@ -180,9 +197,12 @@ int nilfs_bmap_last_key(struct nilfs_bmap *bmap, unsigned long *key) down_read(&bmap->b_sem); ret = bmap->b_ops->bop_last_key(bmap, &lastkey); - if (!ret) - *key = lastkey; up_read(&bmap->b_sem); + + if (ret < 0) + ret = nilfs_bmap_convert_error(bmap, __func__, ret); + else + *key = lastkey; return ret; } @@ -210,7 +230,8 @@ int nilfs_bmap_delete(struct nilfs_bmap *bmap, unsigned long key) down_write(&bmap->b_sem); ret = nilfs_bmap_do_delete(bmap, key); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } static int nilfs_bmap_do_truncate(struct nilfs_bmap *bmap, unsigned long key) @@ -261,7 +282,8 @@ int nilfs_bmap_truncate(struct nilfs_bmap *bmap, unsigned long key) down_write(&bmap->b_sem); ret = nilfs_bmap_do_truncate(bmap, key); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } /** @@ -300,7 +322,8 @@ int nilfs_bmap_propagate(struct nilfs_bmap *bmap, struct buffer_head *bh) down_write(&bmap->b_sem); ret = bmap->b_ops->bop_propagate(bmap, bh); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } /** @@ -344,7 +367,8 @@ int nilfs_bmap_assign(struct nilfs_bmap *bmap, down_write(&bmap->b_sem); ret = bmap->b_ops->bop_assign(bmap, bh, blocknr, binfo); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } /** @@ -373,7 +397,8 @@ int nilfs_bmap_mark(struct nilfs_bmap *bmap, __u64 key, int level) down_write(&bmap->b_sem); ret = bmap->b_ops->bop_mark(bmap, key, level); up_write(&bmap->b_sem); - return ret; + + return nilfs_bmap_convert_error(bmap, __func__, ret); } /** diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c index 9f8a2da..bfc73d3 100644 --- a/fs/nilfs2/ifile.c +++ b/fs/nilfs2/ifile.c @@ -149,14 +149,9 @@ int nilfs_ifile_get_inode_block(struct inode *ifile, ino_t ino, } err = nilfs_palloc_get_entry_block(ifile, ino, 0, out_bh); - if (unlikely(err)) { - if (err == -EINVAL) - nilfs_error(sb, __func__, "ifile is broken"); - else - nilfs_warning(sb, __func__, - "unable to read inode: %lu", - (unsigned long) ino); - } + if (unlikely(err)) + nilfs_warning(sb, __func__, "unable to read inode: %lu", + (unsigned long) ino); return err; } diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 77b48c8..550b178 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -96,11 +96,6 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff, inode->i_ino, (unsigned long long)blkoff); err = 0; - } else if (err == -EINVAL) { - nilfs_error(inode->i_sb, __func__, - "broken bmap (inode=%lu)\n", - inode->i_ino); - err = -EIO; } nilfs_transaction_abort(inode->i_sb); goto out; @@ -629,7 +624,7 @@ static void nilfs_truncate_bmap(struct nilfs_inode_info *ii, if (!test_bit(NILFS_I_BMAP, &ii->i_state)) return; - repeat: +repeat: ret = nilfs_bmap_last_key(ii->i_bmap, &b); if (ret == -ENOENT) return; @@ -646,14 +641,10 @@ static void nilfs_truncate_bmap(struct nilfs_inode_info *ii, nilfs_bmap_truncate(ii->i_bmap, b) == 0)) goto repeat; - failed: - if (ret == -EINVAL) - nilfs_error(ii->vfs_inode.i_sb, __func__, - "bmap is broken (ino=%lu)", ii->vfs_inode.i_ino); - else - nilfs_warning(ii->vfs_inode.i_sb, __func__, - "failed to truncate bmap (ino=%lu, err=%d)", - ii->vfs_inode.i_ino, ret); +failed: + nilfs_warning(ii->vfs_inode.i_sb, __func__, + "failed to truncate bmap (ino=%lu, err=%d)", + ii->vfs_inode.i_ino, ret); } void nilfs_truncate(struct inode *inode) diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index 39a5b84..f5d4b18 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -237,8 +237,6 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block, * * %-ENOENT - the specified block does not exist (hole block) * - * %-EINVAL - bmap is broken. (the caller should call nilfs_error()) - * * %-EROFS - Read only filesystem (for create mode) */ int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create, @@ -273,8 +271,6 @@ int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create, * %-ENOMEM - Insufficient memory available. * * %-EIO - I/O error - * - * %-EINVAL - bmap is broken. (the caller should call nilfs_error()) */ int nilfs_mdt_delete_block(struct inode *inode, unsigned long block) { @@ -350,8 +346,6 @@ int nilfs_mdt_forget_block(struct inode *inode, unsigned long block) * %-EIO - I/O error * * %-ENOENT - the specified block does not exist (hole block) - * - * %-EINVAL - bmap is broken. (the caller should call nilfs_error()) */ int nilfs_mdt_mark_block_dirty(struct inode *inode, unsigned long block) { diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 687d090..d3d2f43 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -504,17 +504,6 @@ static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci, return err; } -static int nilfs_handle_bmap_error(int err, const char *fname, - struct inode *inode, struct super_block *sb) -{ - if (err == -EINVAL) { - nilfs_error(sb, fname, "broken bmap (inode=%lu)\n", - inode->i_ino); - err = -EIO; - } - return err; -} - /* * Callback functions that enumerate, mark, and collect dirty blocks */ @@ -524,9 +513,8 @@ static int nilfs_collect_file_data(struct nilfs_sc_info *sci, int err; err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh); - if (unlikely(err < 0)) - return nilfs_handle_bmap_error(err, __func__, inode, - sci->sc_super); + if (err < 0) + return err; err = nilfs_segctor_add_file_block(sci, bh, inode, sizeof(struct nilfs_binfo_v)); @@ -539,13 +527,7 @@ static int nilfs_collect_file_node(struct nilfs_sc_info *sci, struct buffer_head *bh, struct inode *inode) { - int err; - - err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh); - if (unlikely(err < 0)) - return nilfs_handle_bmap_error(err, __func__, inode, - sci->sc_super); - return 0; + return nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh); } static int nilfs_collect_file_bmap(struct nilfs_sc_info *sci, @@ -588,9 +570,8 @@ static int nilfs_collect_dat_data(struct nilfs_sc_info *sci, int err; err = nilfs_bmap_propagate(NILFS_I(inode)->i_bmap, bh); - if (unlikely(err < 0)) - return nilfs_handle_bmap_error(err, __func__, inode, - sci->sc_super); + if (err < 0) + return err; err = nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64)); if (!err) @@ -1563,7 +1544,6 @@ nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci, return 0; failed_bmap: - err = nilfs_handle_bmap_error(err, __func__, inode, sci->sc_super); return err; } |