diff options
Diffstat (limited to 'sys/kern/sys_generic.c')
| -rw-r--r-- | sys/kern/sys_generic.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/sys/kern/sys_generic.c b/sys/kern/sys_generic.c index fe79f52..75fb66e 100644 --- a/sys/kern/sys_generic.c +++ b/sys/kern/sys_generic.c @@ -89,12 +89,14 @@ __FBSDID("$FreeBSD$"); #define SYS_IOCTL_SMALL_SIZE 128 /* bytes */ #define SYS_IOCTL_SMALL_ALIGN 8 /* bytes */ -int iosize_max_clamp = 0; +#ifdef __LP64__ +static int iosize_max_clamp = 0; SYSCTL_INT(_debug, OID_AUTO, iosize_max_clamp, CTLFLAG_RW, &iosize_max_clamp, 0, "Clamp max i/o size to INT_MAX"); -int devfs_iosize_max_clamp = 1; +static int devfs_iosize_max_clamp = 1; SYSCTL_INT(_debug, OID_AUTO, devfs_iosize_max_clamp, CTLFLAG_RW, &devfs_iosize_max_clamp, 0, "Clamp max i/o size to INT_MAX for devices"); +#endif /* * Assert that the return value of read(2) and write(2) syscalls fits @@ -159,6 +161,24 @@ struct selfd { static uma_zone_t selfd_zone; static struct mtx_pool *mtxpool_select; +#ifdef __LP64__ +size_t +devfs_iosize_max(void) +{ + + return (devfs_iosize_max_clamp || SV_CURPROC_FLAG(SV_ILP32) ? + INT_MAX : SSIZE_MAX); +} + +size_t +iosize_max(void) +{ + + return (iosize_max_clamp || SV_CURPROC_FLAG(SV_ILP32) ? + INT_MAX : SSIZE_MAX); +} +#endif + #ifndef _SYS_SYSPROTO_H_ struct read_args { int fd; |
