diff options
| -rw-r--r-- | arch/alpha/include/asm/statfs.h | 4 | ||||
| -rw-r--r-- | include/asm-generic/statfs.h | 65 |
2 files changed, 52 insertions, 17 deletions
diff --git a/arch/alpha/include/asm/statfs.h b/arch/alpha/include/asm/statfs.h index ad15830baef..de35cd438a1 100644 --- a/arch/alpha/include/asm/statfs.h +++ b/arch/alpha/include/asm/statfs.h @@ -1,6 +1,10 @@ #ifndef _ALPHA_STATFS_H #define _ALPHA_STATFS_H +/* Alpha is the only 64-bit platform with 32-bit statfs. And doesn't + even seem to implement statfs64 */ +#define __statfs_word __u32 + #include <asm-generic/statfs.h> #endif diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h index 1d01043e797..6129d680214 100644 --- a/include/asm-generic/statfs.h +++ b/include/asm-generic/statfs.h @@ -6,33 +6,64 @@ typedef __kernel_fsid_t fsid_t; #endif +/* + * Most 64-bit platforms use 'long', while most 32-bit platforms use '__u32'. + * Yes, they differ in signedness as well as size. + * Special cases can override it for themselves -- except for S390x, which + * is just a little too special for us. And MIPS, which I'm not touching + * with a 10' pole. + */ +#ifndef __statfs_word +#if BITS_PER_LONG == 64 +#define __statfs_word long +#else +#define __statfs_word __u32 +#endif +#endif + struct statfs { - __u32 f_type; - __u32 f_bsize; - __u32 f_blocks; - __u32 f_bfree; - __u32 f_bavail; - __u32 f_files; - __u32 f_ffree; + __statfs_word f_type; + __statfs_word f_bsize; + __statfs_word f_blocks; + __statfs_word f_bfree; + __statfs_word f_bavail; + __statfs_word f_files; + __statfs_word f_ffree; __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_spare[5]; + __statfs_word f_namelen; + __statfs_word f_frsize; + __statfs_word f_spare[5]; }; +/* + * ARM needs to avoid the 32-bit padding at the end, for consistency + * between EABI and OABI + */ +#ifndef ARCH_PACK_STATFS64 +#define ARCH_PACK_STATFS64 +#endif + struct statfs64 { - __u32 f_type; - __u32 f_bsize; + __statfs_word f_type; + __statfs_word f_bsize; __u64 f_blocks; __u64 f_bfree; __u64 f_bavail; __u64 f_files; __u64 f_ffree; __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_spare[5]; -}; + __statfs_word f_namelen; + __statfs_word f_frsize; + __statfs_word f_spare[5]; +} ARCH_PACK_STATFS64; + +/* + * IA64 and x86_64 need to avoid the 32-bit padding at the end, + * to be compatible with the i386 ABI + */ +#ifndef ARCH_PACK_COMPAT_STATFS64 +#define ARCH_PACK_COMPAT_STATFS64 +#endif struct compat_statfs64 { __u32 f_type; @@ -46,6 +77,6 @@ struct compat_statfs64 { __u32 f_namelen; __u32 f_frsize; __u32 f_spare[5]; -}; +} ARCH_PACK_COMPAT_STATFS64; #endif |