add f_flags to struct statfs(64)

Add a flags field to help glibc implementing statvfs(3) efficiently.

We copy the flag values from glibc, and add a new ST_VALID flag to
denote that f_flags is implemented.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 8 insertions, 4 deletions

diff --git a/arch/mips/include/asm/statfs.h b/arch/mips/include/asm/statfs.h
index c3ddf973c1c0..0f805c7a42a5 100644
--- a/arch/mips/include/asm/statfs.h
+++ b/arch/mips/include/asm/statfs.h
@@ -33,7 +33,8 @@ struct statfs {
         /* Linux specials */
         __kernel_fsid_t f_fsid;
         long            f_namelen;
-        long            f_spare[6];
+        long            f_flags;
+        long            f_spare[5];
 };
 
 #if (_MIPS_SIM == _MIPS_SIM_ABI32) || (_MIPS_SIM == _MIPS_SIM_NABI32)
@@ -53,7 +54,8 @@ struct statfs64 {
         __u64   f_bavail;
         __kernel_fsid_t f_fsid;
         __u32   f_namelen;
-        __u32   f_spare[6];
+        __u32   f_flags;
+        __u32   f_spare[5];
 };
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
@@ -73,7 +75,8 @@ struct statfs64 {			/* Same as struct statfs */
         /* Linux specials */
         __kernel_fsid_t f_fsid;
         long            f_namelen;
-        long            f_spare[6];
+        long            f_flags;
+        long            f_spare[5];
 };
 
 struct compat_statfs64 {
@@ -88,7 +91,8 @@ struct compat_statfs64 {
         __u64   f_bavail;
         __kernel_fsid_t f_fsid;
         __u32   f_namelen;
-        __u32   f_spare[6];
+        __u32   f_flags;
+        __u32   f_spare[5];
 };
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */