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| author | kib <kib@FreeBSD.org> | 2013-03-21 07:28:15 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-03-21 07:28:15 +0000 |
| commit | 9382f70781f175347620eab8b665f052267b44d8 (patch) | |
| tree | 9bc7b3e0c6cc84c20d55326658b4ae8b7a95602e /sys/kern | |
| parent | 20a66ac4033ea025111b5bfaa05b8390f33f9e33 (diff) | |
| download | FreeBSD-src-9382f70781f175347620eab8b665f052267b44d8.zip FreeBSD-src-9382f70781f175347620eab8b665f052267b44d8.tar.gz | |
Only size and create the bio_transient_map when unmapped buffers are
enabled. Now, disabling the unmapped buffers should result in the
kernel memory map identical to pre-r248550.
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/vfs_bio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 0a2b89e..30f935c 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -586,7 +586,7 @@ kern_vfs_bio_buffer_alloc(caddr_t v, long physmem_est) * allows to not trim the buffer KVA for the architectures * with ample KVA space. */ - if (bio_transient_maxcnt == 0) { + if (bio_transient_maxcnt == 0 && unmapped_buf_allowed) { maxbuf_sz = maxbcache != 0 ? maxbcache : maxbuf * BKVASIZE; buf_sz = (long)nbuf * BKVASIZE; if (buf_sz < maxbuf_sz / 10 * 9) { |
