From d4847636200fd18df2fa1f6002d2951b122f3911 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 25 Sep 2025 14:30:39 +0200 Subject: [PATCH] ext4: fix checks for orphan inodes ANBZ: #26470 commit acf943e9768ec9d9be80982ca0ebc4bfd6b7631e upstream. When orphan file feature is enabled, inode can be tracked as orphan either in the standard orphan list or in the orphan file. The first can be tested by checking ei->i_orphan list head, the second is recorded by EXT4_STATE_ORPHAN_FILE inode state flag. There are several places where we want to check whether inode is tracked as orphan and only some of them properly check for both possibilities. Luckily the consequences are mostly minor, the worst that can happen is that we track an inode as orphan although we don't need to and e2fsck then complains (resulting in occasional ext4/307 xfstest failures). Fix the problem by introducing a helper for checking whether an inode is tracked as orphan and use it in appropriate places. Fixes: 4a79a98c7b19 ("ext4: Improve scalability of ext4 orphan file handling") Cc: stable@kernel.org Signed-off-by: Jan Kara Reviewed-by: Zhang Yi Message-ID: <20250925123038.20264-2-jack@suse.cz> Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman Signed-off-by: Chu Guangqing --- fs/ext4/ext4.h | 10 ++++++++++ fs/ext4/file.c | 2 +- fs/ext4/inode.c | 2 +- fs/ext4/orphan.c | 6 +----- fs/ext4/super.c | 4 ++-- 5 files changed, 15 insertions(+), 9 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index c38c9aaf8c93..19be6f9d0945 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1964,6 +1964,16 @@ static inline bool ext4_verity_in_progress(struct inode *inode) #define NEXT_ORPHAN(inode) EXT4_I(inode)->i_dtime +/* + * Check whether the inode is tracked as orphan (either in orphan file or + * orphan list). + */ +static inline bool ext4_inode_orphan_tracked(struct inode *inode) +{ + return ext4_test_inode_state(inode, EXT4_STATE_ORPHAN_FILE) || + !list_empty(&EXT4_I(inode)->i_orphan); +} + /* * Codes for operating systems */ diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 52f0d5bf0285..adb481ae2e0e 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -354,7 +354,7 @@ static void ext4_inode_extension_cleanup(struct inode *inode, bool need_trunc) * to cleanup the orphan list in ext4_handle_inode_extension(). Do it * now. */ - if (!list_empty(&EXT4_I(inode)->i_orphan) && inode->i_nlink) { + if (ext4_inode_orphan_tracked(inode) && inode->i_nlink) { handle_t *handle = ext4_journal_start(inode, EXT4_HT_INODE, 2); if (IS_ERR(handle)) { diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 983c99dd39d0..22a992b13a4b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4419,7 +4419,7 @@ static int ext4_fill_raw_inode(struct inode *inode, struct ext4_inode *raw_inode * old inodes get re-used with the upper 16 bits of the * uid/gid intact. */ - if (ei->i_dtime && list_empty(&ei->i_orphan)) { + if (ei->i_dtime && !ext4_inode_orphan_tracked(inode)) { raw_inode->i_uid_high = 0; raw_inode->i_gid_high = 0; } else { diff --git a/fs/ext4/orphan.c b/fs/ext4/orphan.c index e5b47dda3317..2a4bdaeedd10 100644 --- a/fs/ext4/orphan.c +++ b/fs/ext4/orphan.c @@ -109,11 +109,7 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) && !inode_is_locked(inode)); - /* - * Inode orphaned in orphan file or in orphan list? - */ - if (ext4_test_inode_state(inode, EXT4_STATE_ORPHAN_FILE) || - !list_empty(&EXT4_I(inode)->i_orphan)) + if (ext4_inode_orphan_tracked(inode)) return 0; /* diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4c9bf380fe28..4d87eb690650 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1496,9 +1496,9 @@ static void ext4_free_in_core_inode(struct inode *inode) static void ext4_destroy_inode(struct inode *inode) { - if (!list_empty(&(EXT4_I(inode)->i_orphan))) { + if (ext4_inode_orphan_tracked(inode)) { ext4_msg(inode->i_sb, KERN_ERR, - "Inode %lu (%p): orphan list check failed!", + "Inode %lu (%p): inode tracked as orphan!", inode->i_ino, EXT4_I(inode)); print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4, EXT4_I(inode), sizeof(struct ext4_inode_info), -- Gitee