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| author | Hans de Goede <hdegoede@redhat.com> | 2018-04-18 16:24:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-23 14:41:55 +0300 |
| commit | f6f9885b0531163f72c7bf898a0ab1ba4c7d5de6 (patch) | |
| tree | dd2cc4cab83c58a8943ffa8357a3fbe3e969c7aa /drivers/virt/vboxguest/vboxguest_core.h | |
| parent | 02cfde67df1f440c7c3c7038cc97992afb81804f (diff) | |
| download | linux-f6f9885b0531163f72c7bf898a0ab1ba4c7d5de6.tar.xz | |
virt: vbox: Add vbg_req_free() helper function
This is a preparation patch for fixing issues on x86_64 virtual-machines
with more then 4G of RAM, atm we pass __GFP_DMA32 to kmalloc, but kmalloc
does not honor that, so we need to switch to get_pages, which means we
will not be able to use kfree to free memory allocated with vbg_alloc_req.
While at it also remove a comment on a vbg_alloc_req call which talks
about Windows (inherited from the vbox upstream cross-platform code).
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/virt/vboxguest/vboxguest_core.h')
| -rw-r--r-- | drivers/virt/vboxguest/vboxguest_core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/virt/vboxguest/vboxguest_core.h b/drivers/virt/vboxguest/vboxguest_core.h index 39ed85cf9244..7ad9ec45bfa9 100644 --- a/drivers/virt/vboxguest/vboxguest_core.h +++ b/drivers/virt/vboxguest/vboxguest_core.h @@ -173,6 +173,7 @@ void vbg_linux_mouse_event(struct vbg_dev *gdev); /* Private (non exported) functions form vboxguest_utils.c */ void *vbg_req_alloc(size_t len, enum vmmdev_request_type req_type); +void vbg_req_free(void *req, size_t len); int vbg_req_perform(struct vbg_dev *gdev, void *req); int vbg_hgcm_call32( struct vbg_dev *gdev, u32 client_id, u32 function, u32 timeout_ms, |