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MFC r274017, r274088 and r275205:
authorhselasky <hselasky@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Sat, 29 Nov 2014 05:08:29 +0000 (05:08 +0000)
committerhselasky <hselasky@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Sat, 29 Nov 2014 05:08:29 +0000 (05:08 +0000)
commit5746a50db5080fe09e32770bd03cce6f44ba4487
treec11597eae7a7a9b0510d891028c7725511483966tree | snapshot
parente02ea2b9387908172effa6e1f33f628639bc6921commit | 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/9@275231 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/kern/sys_generic.c diff | blob | history
9-STABLE