On Mon, 2017-10-16 at 21:27 +0100, Chris Wilson wrote:
> When pwriting into shmemfs, the fast path pagecache_write does not
> notice when it is writing to beyond the end of the truncated shmemfs
> inode. Report -EFAULT directly when we try to use pwrite into the
> !I915_MADV_WILLNEED object.
>
> Fixes: 7c55e2c5772d ("drm/i915: Use pagecache write to prepopulate shmemfs
> from pwrite-ioctl")
> Testcase: igt/gem_madvise/dontneed-before-pwrite
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Matthew Auld <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Cc: Mika Kuoppala <[email protected]>
Reviewed-by: Joonas Lahtinen <[email protected]>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
