From: Thomas Huth <thuth@redhat.com>
To: qemu-devel@nongnu.org, David Hildenbrand <david@redhat.com>,
Igor Mammedov <imammedo@redhat.com>
Cc: "David Gibson" <david@gibson.dropbear.id.au>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
qemu-s390x@nongnu.org,
"Claudio Imbrenda" <imbrenda@linux.ibm.com>
Subject: [PATCH v2 2/3] softmmu/physmem: Remove the ifdef __linux__ around the pagesize functions
Date: Wed, 10 Aug 2022 14:57:19 +0200 [thread overview]
Message-ID: <20220810125720.3849835-3-thuth@redhat.com> (raw)
In-Reply-To: <20220810125720.3849835-1-thuth@redhat.com>
Now that host_memory_backend_pagesize() is not depending on the hugetlb
memory path handling anymore, we can also remove the #ifdef and the
TOCTTOU comment from the calling functions - the code should now work
equally well on all host architectures.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
softmmu/physmem.c | 17 -----------------
1 file changed, 17 deletions(-)
diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index dc3c3e5f2e..50231bab30 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -1331,13 +1331,6 @@ GString *ram_block_format(void)
return buf;
}
-#ifdef __linux__
-/*
- * FIXME TOCTTOU: this iterates over memory backends' mem-path, which
- * may or may not name the same files / on the same filesystem now as
- * when we actually open and map them. Iterate over the file
- * descriptors instead, and use qemu_fd_getpagesize().
- */
static int find_min_backend_pagesize(Object *obj, void *opaque)
{
long *hpsize_min = opaque;
@@ -1391,16 +1384,6 @@ long qemu_maxrampagesize(void)
object_child_foreach(memdev_root, find_max_backend_pagesize, &pagesize);
return pagesize;
}
-#else
-long qemu_minrampagesize(void)
-{
- return qemu_real_host_page_size();
-}
-long qemu_maxrampagesize(void)
-{
- return qemu_real_host_page_size();
-}
-#endif
#ifdef CONFIG_POSIX
static int64_t get_file_size(int fd)
--
2.31.1
next prev parent reply other threads:[~2022-08-10 13:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 12:57 [PATCH v2 0/3] Fix hugepages with memfd on s390x and clean up related code Thomas Huth
2022-08-10 12:57 ` [PATCH v2 1/3] backends/hostmem: Fix support of memory-backend-memfd in qemu_maxrampagesize() Thomas Huth
2022-08-10 12:59 ` David Hildenbrand
2022-08-10 13:15 ` Claudio Imbrenda
2022-08-10 12:57 ` Thomas Huth [this message]
2022-08-10 13:00 ` [PATCH v2 2/3] softmmu/physmem: Remove the ifdef __linux__ around the pagesize functions David Hildenbrand
2022-08-10 13:22 ` Claudio Imbrenda
2022-08-10 12:57 ` [PATCH v2 3/3] util/mmap-alloc: Remove qemu_mempath_getpagesize() Thomas Huth
2022-08-10 13:00 ` David Hildenbrand
2022-08-10 13:16 ` Claudio Imbrenda
2022-08-10 13:23 ` [PATCH v2 0/3] Fix hugepages with memfd on s390x and clean up related code Claudio Imbrenda
2022-08-26 11:38 ` Thomas Huth
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