Module Name: src
Committed By: riastradh
Date: Mon Aug 27 00:56:38 UTC 2018
Modified Files:
src/sys/external/bsd/drm2/dist/drm/i915: i915_gem.c
Log Message:
Handle uvm object reference counts in uvm_map more carefully.
Acquire a reference unconditionally first; then let uvm_map consume
it on success, and release it ourselves on failure.
As we did before -- acquiring a fresh reference on success -- another
thread might release the reference with a concurrent uvm_unmap before
we could acquire it back, thereby destroying the object.
XXX pullup-7
XXX pullup-8
To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/external/bsd/drm2/dist/drm/i915/i915_gem.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
