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Document disk_resize(9).

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This commit is contained in:
Edward Tomasz Napierala 2012-10-30 13:05:50 +00:00
parent a492b68b27
commit 207c7ec842
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=242359
2 changed files with 12 additions and 2 deletions
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3
share/man/man9/Makefile
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@ -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 \

11
share/man/man9/disk.9
View File

@ -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.