rcu: improve kerneldoc for rcu_read_lock(), call_rcu(), and synchronize_rcu()

[firefly-linux-kernel-4.4.55.git] / include / linux / statfs.h

diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index ad83a2bdb821415f7b73902d4605d2388cb2470b..0166d320a75d3565e32fb6c368a36cbb5a6f0596 100644 (file)
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -2,21 +2,42 @@
 #define _LINUX_STATFS_H
 
 #include <linux/types.h>
-
 #include <asm/statfs.h>
 
 struct kstatfs {
        long f_type;
        long f_bsize;
-       sector_t f_blocks;
-       sector_t f_bfree;
-       sector_t f_bavail;
-       sector_t f_files;
-       sector_t f_ffree;
+       u64 f_blocks;
+       u64 f_bfree;
+       u64 f_bavail;
+       u64 f_files;
+       u64 f_ffree;
        __kernel_fsid_t f_fsid;
        long f_namelen;
        long f_frsize;
-       long f_spare[5];
+       long f_flags;
+       long f_spare[4];
 };
 
+/*
+ * Definitions for the flag in f_flag.
+ *
+ * Generally these flags are equivalent to the MS_ flags used in the mount
+ * ABI.  The exception is ST_VALID which has the same value as MS_REMOUNT
+ * which doesn't make any sense for statfs.
+ */
+#define ST_RDONLY      0x0001  /* mount read-only */
+#define ST_NOSUID      0x0002  /* ignore suid and sgid bits */
+#define ST_NODEV       0x0004  /* disallow access to device special files */
+#define ST_NOEXEC      0x0008  /* disallow program execution */
+#define ST_SYNCHRONOUS 0x0010  /* writes are synced at once */
+#define ST_VALID       0x0020  /* f_flags support is implemented */
+#define ST_MANDLOCK    0x0040  /* allow mandatory locks on an FS */
+/* 0x0080 used for ST_WRITE in glibc */
+/* 0x0100 used for ST_APPEND in glibc */
+/* 0x0200 used for ST_IMMUTABLE in glibc */
+#define ST_NOATIME     0x0400  /* do not update access times */
+#define ST_NODIRATIME  0x0800  /* do not update directory access times */
+#define ST_RELATIME    0x1000  /* update atime relative to mtime/ctime */
+
 #endif