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(parent: 5ac9d98) | patch
Add a helper function vfs_bio_bzero_buf() to zero the portion of the
authorKonstantin Belousov <kib@FreeBSD.org>
Tue, 19 Mar 2013 14:27:14 +0000 (14:27 +0000)
committerKonstantin Belousov <kib@FreeBSD.org>
Tue, 19 Mar 2013 14:27:14 +0000 (14:27 +0000)
commit7d5365c70ba37b88a87a6e5dc64ab5dbec5da90b
tree3a6efddd5ee4e197e29b974a1cb3308a8775924dtree | snapshot
parent5ac9d9890f9f1f97793814d96e459612cfde6153commit | diff
Add a helper function vfs_bio_bzero_buf() to zero the portion of the
buffer, transparently handling mapped or unmapped buffers.  Its intent
is to replace the use of bzero(bp->b_data) in cases where the buffer
might be unmapped, to avoid unneeded upgrades.

Sponsored by: The FreeBSD Foundation
Tested by: pho
sys/kern/vfs_bio.c diff | blob | history
sys/sys/buf.h diff | blob | history
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