diff options
Diffstat (limited to 'util/memfd.c')
| -rw-r--r-- | util/memfd.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/util/memfd.c b/util/memfd.c index 8debd0d037..00334e5b21 100644 --- a/util/memfd.c +++ b/util/memfd.c @@ -40,6 +40,7 @@ static int memfd_create(const char *name, unsigned int flags) #ifdef __NR_memfd_create return syscall(__NR_memfd_create, name, flags); #else + errno = ENOSYS; return -1; #endif } @@ -70,14 +71,18 @@ int qemu_memfd_create(const char *name, size_t size, bool hugetlb, } mfd = memfd_create(name, flags); if (mfd < 0) { + error_setg_errno(errp, errno, + "failed to create memfd with flags 0x%x", flags); goto err; } if (ftruncate(mfd, size) == -1) { + error_setg_errno(errp, errno, "failed to resize memfd to %zu", size); goto err; } if (seals && fcntl(mfd, F_ADD_SEALS, seals) == -1) { + error_setg_errno(errp, errno, "failed to add seals 0x%x", seals); goto err; } @@ -87,8 +92,9 @@ err: if (mfd >= 0) { close(mfd); } +#else + error_setg_errno(errp, ENOSYS, "failed to create memfd"); #endif - error_setg_errno(errp, errno, "failed to create memfd"); return -1; } @@ -188,7 +194,7 @@ bool qemu_memfd_alloc_check(void) bool qemu_memfd_check(unsigned int flags) { #ifdef CONFIG_LINUX - int mfd = memfd_create("test", flags); + int mfd = memfd_create("test", flags | MFD_CLOEXEC); if (mfd >= 0) { close(mfd); |