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MFC r274017, r274088 and r275205:
authorhselasky <hselasky@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Fri, 28 Nov 2014 19:21:46 +0000 (19:21 +0000)
committerhselasky <hselasky@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Fri, 28 Nov 2014 19:21:46 +0000 (19:21 +0000)
commitd8ae63f3b9c3a3c9b19867e954cdfca3e9663296
treeffbba41b7930fcb7af8d196d7e4588d75054e3b6tree | snapshot
parentb7a38744ed230a32aa776fc1d19950f0dd5cb0dbcommit | diff
MFC r274017, r274088 and r275205:

Provide an on-stack temporary buffer for small IOCTL requests.
Avoiding a memory allocation per IOCTL request can give a significant
speedup for applications which heavily rely on IOCTLs.

git-svn-id: svn://svn.freebsd.org/base/stable/10@275212 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/kern/sys_generic.c diff | blob | history
10-STABLE