X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;ds=sidebyside;f=util%2Fmemfd.c;h=4a3c07e0bee6ddcf168553f9c96005bdb11e42c5;hb=510eecbc86e1aa93c17e9e0a3acced366b0258e1;hp=d74ce4d793d019d5b8a335a9f535b085114c4171;hpb=92db922f66cde45bb216c36eb43b762429c96a74;p=mirror_qemu.git

diff --git a/util/memfd.c b/util/memfd.c
index d74ce4d793..4a3c07e0be 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -35,11 +35,12 @@
 #include <sys/syscall.h>
 #include <asm/unistd.h>
 
-static int memfd_create(const char *name, unsigned int flags)
+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;
 }