ext3/ext4: orphan list check on destroy_inode
Customers claims to ext3-related errors, investigation showed that ext3 orphan list has been corrupted and have the reference to non-ext3 inode. The following debug helps to understand the reasons of this issue. [akpm@linux-foundation.org: update for print_hex_dump() changes] Signed-off-by: Vasily Averin <vvs@sw.ru> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -459,6 +459,14 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
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static void ext3_destroy_inode(struct inode *inode)
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{
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if (!list_empty(&(EXT3_I(inode)->i_orphan))) {
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printk("EXT3 Inode %p: orphan list check failed!\n",
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EXT3_I(inode));
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print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
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EXT3_I(inode), sizeof(struct ext3_inode_info),
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false);
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dump_stack();
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}
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kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
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}
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@ -510,6 +510,14 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
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static void ext4_destroy_inode(struct inode *inode)
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{
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if (!list_empty(&(EXT4_I(inode)->i_orphan))) {
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printk("EXT4 Inode %p: orphan list check failed!\n",
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EXT4_I(inode));
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print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
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EXT4_I(inode), sizeof(struct ext4_inode_info),
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true);
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dump_stack();
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}
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kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
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}
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