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| author | mckusick <mckusick@FreeBSD.org> | 2012-03-28 20:49:11 +0000 |
|---|---|---|
| committer | mckusick <mckusick@FreeBSD.org> | 2012-03-28 20:49:11 +0000 |
| commit | 9a7982e5a0267c0421856f3a43a1ae75880058f3 (patch) | |
| tree | e4296e1e7484307c80036dcfa1043b1869febf17 /sys/sys/conf.h | |
| parent | 4d38be64d75540ce84d18b307ffc130ac5d5f2f9 (diff) | |
| download | FreeBSD-src-9a7982e5a0267c0421856f3a43a1ae75880058f3.zip FreeBSD-src-9a7982e5a0267c0421856f3a43a1ae75880058f3.tar.gz | |
Keep track of the mount point associated with a special device
to enable the collection of counts of synchronous and asynchronous
reads and writes for its associated filesystem. The counts are
displayed using `mount -v'.
Ensure that buffers used for paging indicate the vnode from
which they are operating so that counts of paging I/O operations
from the filesystem are collected.
This checkin only adds the setting of the mount point for the
UFS/FFS filesystem, but it would be trivial to add the setting
and clearing of the mount point at filesystem mount/unmount
time for other filesystems too.
Reviewed by: kib
Diffstat (limited to 'sys/sys/conf.h')
| -rw-r--r-- | sys/sys/conf.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/sys/conf.h b/sys/sys/conf.h index 0a12124..49bb3d4 100644 --- a/sys/sys/conf.h +++ b/sys/sys/conf.h @@ -52,7 +52,7 @@ struct cdevsw; struct file; struct cdev { - void *__si_reserved; + void *si_spare0; u_int si_flags; #define SI_ETERNAL 0x0001 /* never destroyed */ #define SI_ALIAS 0x0002 /* carrier of alias name */ @@ -78,7 +78,7 @@ struct cdev { LIST_HEAD(, cdev) si_children; LIST_ENTRY(cdev) si_siblings; struct cdev *si_parent; - void *si_spare0; + struct mount *si_mountpt; void *si_drv1, *si_drv2; struct cdevsw *si_devsw; int si_iosize_max; /* maximum I/O size (for physio &al) */ |
