[PATCH v3 0/4] ext4: fix two bug_on in __es_tree_search

[Baokun Li]

V1->V2:
	In patch 2, when imode is not set to S_IFREG, the inode also needs
	to be initialized. Otherwise, the check can be bypassed, causing
	the BUG_ON. (found in the review by yangerkun)
V2->V3:
	a. add EXT4_IGET_BAD flag to prevent unexpected bad inode.
	b. check bad quota inode in vfs_setup_quota_inode() instead of in
	   ext4_quota_enable() for more generic approach to this problem.
	c. add helper to check quota inums.

Baokun Li (4):
  ext4: fix bug_on in __es_tree_search caused by bad quota inode
  ext4: add helper to check quota inums
  ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
  ext4: fix bug_on in __es_tree_search caused by bad boot loader inode

 fs/ext4/ext4.h   |  3 ++-
 fs/ext4/inode.c  |  8 +++++++-
 fs/ext4/ioctl.c  |  5 +++--
 fs/ext4/super.c  | 28 +++++++++++++++++++++++++---
 fs/quota/dquot.c |  2 ++
 5 files changed, 39 insertions(+), 7 deletions(-)

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2.31.1