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| author | Theodore Ts'o <tytso@mit.edu> | 2017-02-05 01:28:48 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-02-05 01:28:48 -0500 |
| commit | 0db1ff222d40f1601c961f0edb86d10426992595 (patch) | |
| tree | 74c6613fb9f3fba41ff3fc90e0db69d9df20490c /fs/ext4/ext4.h | |
| parent | 9549a168bd500db1a76914e50775f7cd1690acef (diff) | |
| download | lwn-0db1ff222d40f1601c961f0edb86d10426992595.tar.gz lwn-0db1ff222d40f1601c961f0edb86d10426992595.zip | |
ext4: add shutdown bit and check for it
Add a shutdown bit that will cause ext4 processing to fail immediately
with EIO.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 2e7e02f2f771..35d93ab7f3fb 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1836,6 +1836,12 @@ static inline bool ext4_has_incompat_features(struct super_block *sb) * Superblock flags */ #define EXT4_FLAGS_RESIZING 0 +#define EXT4_FLAGS_SHUTDOWN 1 + +static inline int ext4_forced_shutdown(struct ext4_sb_info *sbi) +{ + return test_bit(EXT4_FLAGS_SHUTDOWN, &sbi->s_ext4_flags); +} /* |