fuse: allow ctime flushing to userspace

The patch extends fuse_setattr_in, and extends the flush procedure
(fuse_flush_times()) called on ->write_inode() to send the ctime as well as
mtime.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

1 files changed, 5 insertions, 2 deletions

diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index d1b4e2ca9672..e86a21acef75 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -98,6 +98,8 @@
  *  - add FUSE_WRITEBACK_CACHE
  *  - add time_gran to fuse_init_out
  *  - add reserved space to fuse_init_out
+ *  - add FATTR_CTIME
+ *  - add ctime and ctimensec to fuse_setattr_in
  */
 
 #ifndef _LINUX_FUSE_H
@@ -193,6 +195,7 @@ struct fuse_file_lock {
 #define FATTR_ATIME_NOW (1 << 7)
 #define FATTR_MTIME_NOW (1 << 8)
 #define FATTR_LOCKOWNER (1 << 9)
+#define FATTR_CTIME     (1 << 10)
 
 /**
  * Flags returned by the OPEN request
@@ -440,10 +443,10 @@ struct fuse_setattr_in {
         uint64_t        lock_owner;
         uint64_t        atime;
         uint64_t        mtime;
-        uint64_t        unused2;
+        uint64_t        ctime;
         uint32_t        atimensec;
         uint32_t        mtimensec;
-        uint32_t        unused3;
+        uint32_t        ctimensec;
         uint32_t        mode;
         uint32_t        unused4;
         uint32_t        uid;