From: Markos Chandras <markos.chand...@imgtec.com> Using __libc_fstatfs for fstatfs64 adds a small delay as it needs to use a 32-bit data structure to get the file info and them pass them to the 64-bit data structure which was given as a fstatfs64 argument. Using the system call directly should make the entire process much faster. Also fix the arguments for fstatfs64. It takes three arguments (see fs/fstatfs.c in Linux kernel sources) so despite what the manpage says, the size of the buffer needs to be passed as the second argument
Signed-off-by: Markos Chandras <markos.chand...@imgtec.com> --- libc/misc/statfs/fstatfs64.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/libc/misc/statfs/fstatfs64.c b/libc/misc/statfs/fstatfs64.c index 27bb8d6..0cb710f 100644 --- a/libc/misc/statfs/fstatfs64.c +++ b/libc/misc/statfs/fstatfs64.c @@ -23,8 +23,10 @@ #include <string.h> #include <sys/statfs.h> #include <sys/statvfs.h> +#include <sys/syscall.h> #include <stddef.h> +#if defined(__NR_fstatfs) extern __typeof(fstatfs) __libc_fstatfs; /* Return information about the filesystem on which FD resides. */ @@ -48,4 +50,16 @@ int fstatfs64 (int fd, struct statfs64 *buf) return 0; } +#else +/* + * Use the fstatfs64 system call if fstatfs is not defined + * This is for backwards compatibility and it should be + * made default in the future + */ +int fstatfs64(int fd, struct statfs64 *buf) +{ + /* Signature has 2 arguments but syscalls wants 3 */ + return INLINE_SYSCALL(fstatfs64, 3, fd, sizeof(*buf), buf); +} +#endif libc_hidden_def(fstatfs64) -- 1.8.0 _______________________________________________ uClibc mailing list uClibc@uclibc.org http://lists.busybox.net/mailman/listinfo/uclibc