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-rw-r--r--include/asm-generic/statfs.h9
-rw-r--r--include/linux/statfs.h25
2 files changed, 29 insertions, 5 deletions
diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h
index 3b4fb3e52f0d..0fd28e028de1 100644
--- a/include/asm-generic/statfs.h
+++ b/include/asm-generic/statfs.h
@@ -33,7 +33,8 @@ struct statfs {
__kernel_fsid_t f_fsid;
__statfs_word f_namelen;
__statfs_word f_frsize;
- __statfs_word f_spare[5];
+ __statfs_word f_flags;
+ __statfs_word f_spare[4];
};
/*
@@ -55,7 +56,8 @@ struct statfs64 {
__kernel_fsid_t f_fsid;
__statfs_word f_namelen;
__statfs_word f_frsize;
- __statfs_word f_spare[5];
+ __statfs_word f_flags;
+ __statfs_word f_spare[4];
} ARCH_PACK_STATFS64;
/*
@@ -77,7 +79,8 @@ struct compat_statfs64 {
__kernel_fsid_t f_fsid;
__u32 f_namelen;
__u32 f_frsize;
- __u32 f_spare[5];
+ __u32 f_flags;
+ __u32 f_spare[4];
} ARCH_PACK_COMPAT_STATFS64;
#endif
diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index b34cc829f98d..0166d320a75d 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -2,7 +2,6 @@
#define _LINUX_STATFS_H
#include <linux/types.h>
-
#include <asm/statfs.h>
struct kstatfs {
@@ -16,7 +15,29 @@ struct kstatfs {
__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