summaryrefslogtreecommitdiffstats
path: root/fs/ext4/ext4.h
diff options
context:
space:
mode:
authorTheodore Ts'o <tytso@mit.edu>2017-02-05 01:28:48 -0500
committerTheodore Ts'o <tytso@mit.edu>2017-02-05 01:28:48 -0500
commit0db1ff222d40f1601c961f0edb86d10426992595 (patch)
tree74c6613fb9f3fba41ff3fc90e0db69d9df20490c /fs/ext4/ext4.h
parent9549a168bd500db1a76914e50775f7cd1690acef (diff)
downloadop-kernel-dev-0db1ff222d40f1601c961f0edb86d10426992595.zip
op-kernel-dev-0db1ff222d40f1601c961f0edb86d10426992595.tar.gz
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.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 2e7e02f..35d93ab 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);
+}
/*
OpenPOWER on IntegriCloud