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| author | jhb <jhb@FreeBSD.org> | 2009-07-24 13:50:29 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2009-07-24 13:50:29 +0000 |
| commit | 44220d7e1e07bbf1c88215543c5877abcdb88d29 (patch) | |
| tree | 9a9fb32ead80921ec7937e7a600e46e446366436 /sys/vm/vm_pager.h | |
| parent | 4064b20ecefb589d0b9290e558c0abfc5229c120 (diff) | |
| download | FreeBSD-src-44220d7e1e07bbf1c88215543c5877abcdb88d29.zip FreeBSD-src-44220d7e1e07bbf1c88215543c5877abcdb88d29.tar.gz | |
Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to
a device pager (OBJT_DEVICE) object in that it uses fictitious pages to
provide aliases to other memory addresses. The primary difference is that
it uses an sglist(9) to determine the physical addresses for a given offset
into the object instead of invoking the d_mmap() method in a device driver.
Reviewed by: alc
Approved by: re (kensmith)
MFC after: 2 weeks
Diffstat (limited to 'sys/vm/vm_pager.h')
| -rw-r--r-- | sys/vm/vm_pager.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/vm/vm_pager.h b/sys/vm/vm_pager.h index 7c8aeba..75d8f0a 100644 --- a/sys/vm/vm_pager.h +++ b/sys/vm/vm_pager.h @@ -70,6 +70,7 @@ extern struct pagerops swappagerops; extern struct pagerops vnodepagerops; extern struct pagerops devicepagerops; extern struct pagerops physpagerops; +extern struct pagerops sgpagerops; /* * get/put return values |
