CVS commit: src/sys/external/bsd/drm2

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Mon Aug 27 14:14:42 UTC 2018

Modified Files:
        src/sys/external/bsd/drm2/include/linux: idr.h
        src/sys/external/bsd/drm2/linux: linux_idr.c

Log Message:
Draft rewrite of idr preload.

Previous idr code assumed every caller would definitely call
idr_preload, idr_alloc, idr_preload_end, but some callers skip
idr_alloc if an intermediate failure happens first, and would
therefore leak idr nodes.

Use a per-lwp single-node cache instead, and print warnings about
leakers.


To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/external/bsd/drm2/include/linux/idr.h
cvs rdiff -u -r1.7 -r1.8 src/sys/external/bsd/drm2/linux/linux_idr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.