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| author | marcel <marcel@FreeBSD.org> | 2003-05-19 04:16:30 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2003-05-19 04:16:30 +0000 |
| commit | cd7086c532d7fcc9f4b3277152396924b3dea95d (patch) | |
| tree | 0570d3a0fa5ef89dbacda5db8279ceacd93bdeab /sys/ia64/include/pmap.h | |
| parent | 487ef7f7cbd53c22f36b29ac35905579ef1b7ae9 (diff) | |
| download | FreeBSD-src-cd7086c532d7fcc9f4b3277152396924b3dea95d.zip FreeBSD-src-cd7086c532d7fcc9f4b3277152396924b3dea95d.tar.gz | |
pmap_install() needs to be atomic WRT to context switching. Protect
switching user regions (region 0-4) with schedlock. Avoid unnecessary
recursion on schedlock by moving the core functionality to another
function (pmap_switch()) where we assert schedlock is held. Turn
pmap_install() into a wrapper that grabs schedlock. This minimizes
the number of callsites that need to be changed.
Since we already have schedlock in cpu_switch() and cpu_throw(),
have them call pmap_switch() directly. These were also the only two
calls to pmap_install() outside pmap.c, so make pmap_install() static
and remove its prototype from pmap.h
Approved by: re (blanket)
Diffstat (limited to 'sys/ia64/include/pmap.h')
| -rw-r--r-- | sys/ia64/include/pmap.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/ia64/include/pmap.h b/sys/ia64/include/pmap.h index 4ee712d..d14e4b8 100644 --- a/sys/ia64/include/pmap.h +++ b/sys/ia64/include/pmap.h @@ -128,7 +128,7 @@ void pmap_unmapdev(vm_offset_t, vm_size_t); unsigned *pmap_pte(pmap_t, vm_offset_t) __pure2; void pmap_set_opt (unsigned *); void pmap_set_opt_bsp (void); -struct pmap *pmap_install(struct pmap *pmap); +struct pmap *pmap_switch(struct pmap *pmap); #endif /* _KERNEL */ |
