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authorTheodore Ts'o <tytso@mit.edu>2017-02-06 03:47:14 +0300
committerTheodore Ts'o <tytso@mit.edu>2017-02-06 03:47:14 +0300
commit783d948544993f55bdacc78b127532e8b6e2fc9f (patch)
tree9aa172542294f1d75dc033d10f8756c5832ee1e8 /fs/ext4/ext4.h
parent0db1ff222d40f1601c961f0edb86d10426992595 (diff)
downloadlinux-783d948544993f55bdacc78b127532e8b6e2fc9f.tar.xz
ext4: add EXT4_IOC_GOINGDOWN ioctl
This ioctl is modeled after the xfs's XFS_IOC_GOINGDOWN ioctl. (In fact, it uses the same code points.) Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 35d93ab7f3fb..55b7a77a0444 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -679,6 +679,16 @@ struct fsxattr {
#define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR
#define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR
+#define EXT4_IOC_GOINGDOWN _IOR ('X', 125, __u32)
+
+/*
+ * Flags for going down operation
+ */
+#define EXT4_GOING_FLAGS_DEFAULT 0x0 /* going down */
+#define EXT4_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */
+#define EXT4_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */
+
+
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
/*
* ioctl commands in 32 bit emulation