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2f7e33d432
When iputting the inode, We may leave the delayed nodes if they have some delayed items that have not been dealt with. So when the inode is read again, we must look up the relative delayed node, and use the information in it to initialize the inode. Or we will get inconsonant inode information, it may cause that the same directory index number is allocated again, and hit the following oops: [ 5447.554187] err add delayed dir index item(name: pglog_0.965_0) into the insertion tree of the delayed node(root id: 262, inode id: 258, errno: -17) [ 5447.569766] ------------[ cut here ]------------ [ 5447.575361] kernel BUG at fs/btrfs/delayed-inode.c:1301! [SNIP] [ 5447.790721] Call Trace: [ 5447.793191] [<ffffffffa0641c4e>] btrfs_insert_dir_item+0x189/0x1bb [btrfs] [ 5447.800156] [<ffffffffa0651a45>] btrfs_add_link+0x12b/0x191 [btrfs] [ 5447.806517] [<ffffffffa0651adc>] btrfs_add_nondir+0x31/0x58 [btrfs] [ 5447.812876] [<ffffffffa0651d6a>] btrfs_create+0xf9/0x197 [btrfs] [ 5447.818961] [<ffffffff8111f840>] vfs_create+0x72/0x92 [ 5447.824090] [<ffffffff8111fa8c>] do_last+0x22c/0x40b [ 5447.829133] [<ffffffff8112076a>] path_openat+0xc0/0x2ef [ 5447.834438] [<ffffffff810c58e2>] ? __perf_event_task_sched_out+0x24/0x44 [ 5447.841216] [<ffffffff8103ecdd>] ? perf_event_task_sched_out+0x59/0x67 [ 5447.847846] [<ffffffff81121a79>] do_filp_open+0x3d/0x87 [ 5447.853156] [<ffffffff811e126c>] ? strncpy_from_user+0x43/0x4d [ 5447.859072] [<ffffffff8111f1f5>] ? getname_flags+0x2e/0x80 [ 5447.864636] [<ffffffff8111f179>] ? do_getname+0x14b/0x173 [ 5447.870112] [<ffffffff8111f1b7>] ? audit_getname+0x16/0x26 [ 5447.875682] [<ffffffff8112b1ab>] ? spin_lock+0xe/0x10 [ 5447.880882] [<ffffffff81112d39>] do_sys_open+0x69/0xae [ 5447.886153] [<ffffffff81112db1>] sys_open+0x20/0x22 [ 5447.891114] [<ffffffff813b9aab>] system_call_fastpath+0x16/0x1b Fix it by reusing the old delayed node. Reported-by: Jim Schutt <jaschut@sandia.gov> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Tested-by: Jim Schutt <jaschut@sandia.gov> Signed-off-by: Chris Mason <chris.mason@oracle.com> |
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| .. | ||
| acl.c | ||
| async-thread.c | ||
| async-thread.h | ||
| btrfs_inode.h | ||
| compat.h | ||
| compression.c | ||
| compression.h | ||
| ctree.c | ||
| ctree.h | ||
| delayed-inode.c | ||
| delayed-inode.h | ||
| delayed-ref.c | ||
| delayed-ref.h | ||
| dir-item.c | ||
| disk-io.c | ||
| disk-io.h | ||
| export.c | ||
| export.h | ||
| extent-tree.c | ||
| extent_io.c | ||
| extent_io.h | ||
| extent_map.c | ||
| extent_map.h | ||
| file-item.c | ||
| file.c | ||
| free-space-cache.c | ||
| free-space-cache.h | ||
| hash.h | ||
| inode-item.c | ||
| inode-map.c | ||
| inode-map.h | ||
| inode.c | ||
| ioctl.c | ||
| ioctl.h | ||
| Kconfig | ||
| locking.c | ||
| locking.h | ||
| lzo.c | ||
| Makefile | ||
| ordered-data.c | ||
| ordered-data.h | ||
| orphan.c | ||
| print-tree.c | ||
| print-tree.h | ||
| ref-cache.c | ||
| ref-cache.h | ||
| relocation.c | ||
| root-tree.c | ||
| scrub.c | ||
| struct-funcs.c | ||
| super.c | ||
| sysfs.c | ||
| transaction.c | ||
| transaction.h | ||
| tree-defrag.c | ||
| tree-log.c | ||
| tree-log.h | ||
| version.h | ||
| volumes.c | ||
| volumes.h | ||
| xattr.c | ||
| xattr.h | ||
| zlib.c | ||