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xen: branch for v5.19-rc7

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Merge tag 'for-linus-5.19a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "Fix for the Xen gntdev driver causing inappropriate WARN() messages"

* tag 'for-linus-5.19a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE
This commit is contained in:
Linus Torvalds 2022-07-15 10:00:49 -07:00
commit 339f74e38f
1 changed files with 4 additions and 2 deletions
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6
drivers/xen/gntdev.c
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@ -396,13 +396,15 @@ static void __unmap_grant_pages_done(int result,
unsigned int offset = data->unmap_ops - map->unmap_ops;
for (i = 0; i < data->count; i++) {
WARN_ON(map->unmap_ops[offset+i].status);
WARN_ON(map->unmap_ops[offset + i].status != GNTST_okay &&
map->unmap_ops[offset + i].handle != INVALID_GRANT_HANDLE);
pr_debug("unmap handle=%d st=%d\n",
map->unmap_ops[offset+i].handle,
map->unmap_ops[offset+i].status);
map->unmap_ops[offset+i].handle = INVALID_GRANT_HANDLE;
if (use_ptemod) {
WARN_ON(map->kunmap_ops[offset+i].status);
WARN_ON(map->kunmap_ops[offset + i].status != GNTST_okay &&
map->kunmap_ops[offset + i].handle != INVALID_GRANT_HANDLE);
pr_debug("kunmap handle=%u st=%d\n",
map->kunmap_ops[offset+i].handle,
map->kunmap_ops[offset+i].status);