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(-) -- 2.31.1
