drm/vmwgfx: Fix a circular locking dependency in the fbdev code

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When a user-space process writes directly to the fbdev framebuffer,
we hit a circular locking dependency. Fix this by introducing a local
delayed work callback so that the defio lock can be released before
calling into the modesetting code for a dirty update.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>

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Thomas Hellstrom 2015-08-18 09:07:38 -07:00

parent 294947a5c7

commit 772269f970

1 changed files with 17 additions and 12 deletions

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drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

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