Author: trasz
Date: Tue Oct 30 13:05:50 2012
New Revision: 242359
URL: http://svn.freebsd.org/changeset/base/242359
Log:
Document disk_resize(9).
Modified:
head/share/man/man9/Makefile
head/share/man/man9/disk.9
Modified: head/share/man/man9/Makefile
==============================================================================
--- head/share/man/man9/Makefile Tue Oct 30 12:52:41 2012
(r242358)
+++ head/share/man/man9/Makefile Tue Oct 30 13:05:50 2012
(r242359)
@@ -614,7 +614,8 @@ MLINKS+=devstat.9 devicestat.9 \
MLINKS+=disk.9 disk_alloc.9 \
disk.9 disk_create.9 \
disk.9 disk_destroy.9 \
- disk.9 disk_gone.9
+ disk.9 disk_gone.9 \
+ disk.9 disk_resize.9
MLINKS+=domain.9 DOMAIN_SET.9 \
domain.9 domain_add.9 \
domain.9 pfctlinput.9 \
Modified: head/share/man/man9/disk.9
==============================================================================
--- head/share/man/man9/disk.9 Tue Oct 30 12:52:41 2012 (r242358)
+++ head/share/man/man9/disk.9 Tue Oct 30 13:05:50 2012 (r242359)
@@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd February 18, 2004
+.Dd October 30, 2012
.Dt DISK 9
.Os
.Sh NAME
@@ -43,6 +43,8 @@
.Fn disk_gone "struct disk *disk"
.Ft void
.Fn disk_destroy "struct disk *disk"
+.Ft int
+.Fn disk_resize "struct disk *disk" "int flags"
.Sh DESCRIPTION
The disk storage API permits kernel device drivers providing access to
disk-like storage devices to advertise the device to other kernel
@@ -67,6 +69,13 @@ function,
fill in the fields and call
.Fn disk_create
when the device is ready to service requests.
+.Fn disk_resize
+can be called by the driver after modifying
+.Va d_mediasize
+to notify GEOM about the disk capacity change.
+The
+.Fa flags
+field should be set to either M_WAITOK, or M_NOWAIT.
.Fn disk_gone
orphans all of the providers associated with the drive, setting an error
condition of ENXIO in each one.
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