diff options
Diffstat (limited to 'libglusterfs/src/syscall.c')
| -rw-r--r-- | libglusterfs/src/syscall.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/libglusterfs/src/syscall.c b/libglusterfs/src/syscall.c index c72a8e16b34..1d88c8adac1 100644 --- a/libglusterfs/src/syscall.c +++ b/libglusterfs/src/syscall.c @@ -8,8 +8,8 @@ cases as published by the Free Software Foundation. */ -#include "glusterfs/syscall.h" #include "glusterfs/compat.h" +#include "glusterfs/syscall.h" #include "glusterfs/mem-pool.h" #include "glusterfs/libglusterfs-messages.h" @@ -19,6 +19,9 @@ #include <fcntl.h> #include <unistd.h> #include <stdarg.h> +#ifdef HAVE_COPY_FILE_RANGE_SYS +#include <sys/syscall.h> +#endif #define FS_ERROR_LOG(result) \ do { \ @@ -802,3 +805,30 @@ err: #endif return newsock; } + +ssize_t +sys_copy_file_range(int fd_in, off64_t *off_in, int fd_out, off64_t *off_out, + size_t len, unsigned int flags) +{ + /* + * TODO: Add check for other platofrms like freebsd etc if this syscall is + * not generic. + * This is what the function does. + * 1) Check whether copy_file_range API is present. If so call it. + * 2) If copy_file_range API is not present, then check whether + * the system call is there. If so, then use syscall to invoke + * SYS_copy_file_range system call. + * 3) If neither of the above is present, then return ENOSYS. + */ +#ifdef HAVE_COPY_FILE_RANGE + return FS_RET_CHECK( + copy_file_range(fd_in, off_in, fd_out, off_out, len, flags), errno); +#else +#ifdef HAVE_COPY_FILE_RANGE_SYS + return syscall(SYS_copy_file_range, fd_in, off_in, fd_out, off_out, len, + flags); +#else + return -ENOSYS; +#endif /* HAVE_COPY_FILE_RANGE_SYS */ +#endif /* HAVE_COPY_FILE_RANGE */ +} |