diff options
author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-04-06 19:01:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 08:31:19 -0700 |
commit | 1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b (patch) | |
tree | f80e97297d5badebd31bbb17003d76a4ea30453a /fs/nilfs2/inode.c | |
parent | 2c2e52fc4fca251e68f90821c9ff5cb18be4df58 (diff) | |
download | linux-1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b.tar.bz2 |
nilfs2: replace BUG_ON and BUG calls triggerable from ioctl
Pekka Enberg advised me:
> It would be nice if BUG(), BUG_ON(), and panic() calls would be
> converted to proper error handling using WARN_ON() calls. The BUG()
> call in nilfs_cpfile_delete_checkpoints(), for example, looks to be
> triggerable from user-space via the ioctl() system call.
This will follow the comment and keep them to a minimum.
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/inode.c')
-rw-r--r-- | fs/nilfs2/inode.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 4bf1e2c5bac6..b6536bb2a324 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -61,12 +61,6 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff, map_bh(bh_result, inode->i_sb, blknum); goto out; } - if (unlikely(ret == 1)) { - printk(KERN_ERR "nilfs_get_block: bmap_lookup returns " - "buffer_head pointer (blkoff=%llu, blknum=%lu)\n", - (unsigned long long)blkoff, blknum); - BUG(); - } /* data block was not found */ if (ret == -ENOENT && create) { struct nilfs_transaction_info ti; @@ -85,14 +79,14 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff, * However, the page having this block must * be locked in this case. */ - printk(KERN_ERR + printk(KERN_WARNING "nilfs_get_block: a race condition " "while inserting a data block. " "(inode number=%lu, file block " "offset=%llu)\n", inode->i_ino, (unsigned long long)blkoff); - BUG(); + err = 0; } else if (err == -EINVAL) { nilfs_error(inode->i_sb, __func__, "broken bmap (inode=%lu)\n", @@ -621,7 +615,6 @@ void nilfs_truncate(struct inode *inode) struct nilfs_transaction_info ti; struct super_block *sb = inode->i_sb; struct nilfs_inode_info *ii = NILFS_I(inode); - int ret; if (!test_bit(NILFS_I_BMAP, &ii->i_state)) return; @@ -630,8 +623,7 @@ void nilfs_truncate(struct inode *inode) blocksize = sb->s_blocksize; blkoff = (inode->i_size + blocksize - 1) >> sb->s_blocksize_bits; - ret = nilfs_transaction_begin(sb, &ti, 0); - BUG_ON(ret); + nilfs_transaction_begin(sb, &ti, 0); /* never fails */ block_truncate_page(inode->i_mapping, inode->i_size, nilfs_get_block); @@ -652,7 +644,6 @@ void nilfs_delete_inode(struct inode *inode) struct nilfs_transaction_info ti; struct super_block *sb = inode->i_sb; struct nilfs_inode_info *ii = NILFS_I(inode); - int err; if (unlikely(is_bad_inode(inode))) { if (inode->i_data.nrpages) @@ -660,8 +651,8 @@ void nilfs_delete_inode(struct inode *inode) clear_inode(inode); return; } - err = nilfs_transaction_begin(sb, &ti, 0); - BUG_ON(err); + nilfs_transaction_begin(sb, &ti, 0); /* never fails */ + if (inode->i_data.nrpages) truncate_inode_pages(&inode->i_data, 0); |