diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-01-17 17:03:13 +0100 |
|---|---|---|
| committer | Peter Xu <peterx@redhat.com> | 2024-01-29 11:02:12 +0800 |
| commit | 73b4987858cd2e0f5bd9ec626f2f95cce6cf84a1 (patch) | |
| tree | d1cd985d11a40c11811aa5a6f8df6ca5af6b14c1 /migration | |
| parent | 7a1dc45af581d2b643cdbf33c01fd96271616fbd (diff) | |
userfaultfd: use 1ULL to build ioctl masks
There is no need to use the Linux-internal __u64 type, 1ULL is
guaranteed to be wide enough.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20240117160313.175609-1-pbonzini@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/postcopy-ram.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 5408e028c6..893ec8fa89 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -102,11 +102,9 @@ void postcopy_thread_create(MigrationIncomingState *mis, * are target OS specific. */ #if defined(__linux__) - #include <poll.h> #include <sys/ioctl.h> #include <sys/syscall.h> -#include <asm/types.h> /* for __u64 */ #endif #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD) @@ -272,8 +270,8 @@ static bool request_ufd_features(int ufd, uint64_t features) return false; } - ioctl_mask = (__u64)1 << _UFFDIO_REGISTER | - (__u64)1 << _UFFDIO_UNREGISTER; + ioctl_mask = 1ULL << _UFFDIO_REGISTER | + 1ULL << _UFFDIO_UNREGISTER; if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) { error_report("Missing userfault features: %" PRIx64, (uint64_t)(~api_struct.ioctls & ioctl_mask)); @@ -462,9 +460,9 @@ bool postcopy_ram_supported_by_host(MigrationIncomingState *mis, Error **errp) goto out; } - feature_mask = (__u64)1 << _UFFDIO_WAKE | - (__u64)1 << _UFFDIO_COPY | - (__u64)1 << _UFFDIO_ZEROPAGE; + feature_mask = 1ULL << _UFFDIO_WAKE | + 1ULL << _UFFDIO_COPY | + 1ULL << _UFFDIO_ZEROPAGE; if ((reg_struct.ioctls & feature_mask) != feature_mask) { error_setg(errp, "Missing userfault map features: %" PRIx64, (uint64_t)(~reg_struct.ioctls & feature_mask)); @@ -733,11 +731,11 @@ static int ram_block_enable_notify(RAMBlock *rb, void *opaque) error_report("%s userfault register: %s", __func__, strerror(errno)); return -1; } - if (!(reg_struct.ioctls & ((__u64)1 << _UFFDIO_COPY))) { + if (!(reg_struct.ioctls & (1ULL << _UFFDIO_COPY))) { error_report("%s userfault: Region doesn't support COPY", __func__); return -1; } - if (reg_struct.ioctls & ((__u64)1 << _UFFDIO_ZEROPAGE)) { + if (reg_struct.ioctls & (1ULL << _UFFDIO_ZEROPAGE)) { qemu_ram_set_uf_zeroable(rb); } |