diff options
| author | Baokun Li <libaokun1@huawei.com> | 2025-01-22 19:41:26 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2025-03-13 10:16:34 -0400 |
| commit | 0a1b2f5ea98764221ccc1043b8dc27a8c0225476 (patch) | |
| tree | 715683e257162a67e33521799ab6b1222823b72e /fs/ext4/ext4.h | |
| parent | ext4: add EXT4_FLAGS_EMERGENCY_RO bit (diff) | |
| download | linux-0a1b2f5ea98764221ccc1043b8dc27a8c0225476.tar.gz linux-0a1b2f5ea98764221ccc1043b8dc27a8c0225476.zip | |
ext4: add ext4_emergency_state() helper function
Since both SHUTDOWN and EMERGENCY_RO are emergency states of the ext4 file
system, and they are checked in similar locations, we have added a helper
function, ext4_emergency_state(), to determine whether the current file
system is in one of these two emergency states.
Then, replace calls to ext4_forced_shutdown() with ext4_emergency_state()
in those functions that could potentially trigger write operations.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20250122114130.229709-4-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 81cb16b5f8da..87a8282e5d86 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2252,6 +2252,15 @@ static inline int ext4_emergency_ro(struct super_block *sb) return test_bit(EXT4_FLAGS_EMERGENCY_RO, &EXT4_SB(sb)->s_ext4_flags); } +static inline int ext4_emergency_state(struct super_block *sb) +{ + if (unlikely(ext4_forced_shutdown(sb))) + return -EIO; + if (unlikely(ext4_emergency_ro(sb))) + return -EROFS; + return 0; +} + /* * Default values for user and/or group using reserved blocks */ |