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| author | Mike Smith <msmith@FreeBSD.org> | 1999-01-15 17:24:05 +0000 |
|---|---|---|
| committer | Mike Smith <msmith@FreeBSD.org> | 1999-01-15 17:24:05 +0000 |
| commit | 8664a77199fa2b96ddc8610a4080ac440b601565 (patch) | |
| tree | de9ba805af423d78d832b9e9bff8c5f008693224 | |
| parent | 419766671c864d4d2c690b83abd80241df9bbae3 (diff) | |
| download | src-8664a77199fa2b96ddc8610a4080ac440b601565.tar.gz src-8664a77199fa2b96ddc8610a4080ac440b601565.zip | |
Fetch an overide for NMBCLUSTERS from the kernel environment. Never allow
the value to be reduced below that defined when the kernel was built.
Notes
Notes:
svn path=/head/; revision=42705
| -rw-r--r-- | sys/amd64/amd64/machdep.c | 8 | ||||
| -rw-r--r-- | sys/i386/i386/machdep.c | 8 |
2 files changed, 14 insertions, 2 deletions
diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index 2fed70512563..1bd6f6c5f04a 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.320 1999/01/06 23:05:36 julian Exp $ + * $Id: machdep.c,v 1.321 1999/01/09 15:41:49 bde Exp $ */ #include "apm.h" @@ -410,6 +410,12 @@ again: */ { vm_offset_t mb_map_size; + int xclusters; + + /* Allow override of NMBCLUSTERS from the kernel environment */ + if (getenv_int("kern.ipc.nmbclusters", &xclusters) && + xclusters > nmbclusters) + nmbclusters = xclusters; mb_map_size = nmbufs * MSIZE + nmbclusters * MCLBYTES; mb_map_size = roundup2(mb_map_size, max(MCLBYTES, PAGE_SIZE)); diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 2fed70512563..1bd6f6c5f04a 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.320 1999/01/06 23:05:36 julian Exp $ + * $Id: machdep.c,v 1.321 1999/01/09 15:41:49 bde Exp $ */ #include "apm.h" @@ -410,6 +410,12 @@ again: */ { vm_offset_t mb_map_size; + int xclusters; + + /* Allow override of NMBCLUSTERS from the kernel environment */ + if (getenv_int("kern.ipc.nmbclusters", &xclusters) && + xclusters > nmbclusters) + nmbclusters = xclusters; mb_map_size = nmbufs * MSIZE + nmbclusters * MCLBYTES; mb_map_size = roundup2(mb_map_size, max(MCLBYTES, PAGE_SIZE)); |