diff options
Diffstat (limited to 'sys/fs/devfs/devfs_vnops.c')
| -rw-r--r-- | sys/fs/devfs/devfs_vnops.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/sys/fs/devfs/devfs_vnops.c b/sys/fs/devfs/devfs_vnops.c index 3451440..59f89b3 100644 --- a/sys/fs/devfs/devfs_vnops.c +++ b/sys/fs/devfs/devfs_vnops.c @@ -46,8 +46,6 @@ #include <sys/param.h> #include <sys/systm.h> -#include <sys/bio.h> -#include <sys/buf.h> #include <sys/conf.h> #include <sys/dirent.h> #include <sys/fcntl.h> @@ -60,7 +58,6 @@ #include <sys/proc.h> #include <sys/stat.h> #include <sys/sx.h> -#include <sys/sysctl.h> #include <sys/time.h> #include <sys/unistd.h> #include <sys/vnode.h> @@ -92,7 +89,6 @@ static int devfs_setattr(struct vop_setattr_args *ap); #ifdef MAC static int devfs_setlabel(struct vop_setlabel_args *ap); #endif -static int devfs_specstrategy(struct vop_specstrategy_args *); static int devfs_symlink(struct vop_symlink_args *ap); static int devfs_write(struct vop_write_args *ap); @@ -1227,58 +1223,6 @@ devfs_setlabel(ap) } #endif -static int doslowdown = 0; -SYSCTL_INT(_debug, OID_AUTO, doslowdown, CTLFLAG_RW, &doslowdown, 0, ""); - -static int -devfs_specstrategy(ap) - struct vop_specstrategy_args /* { - struct vnode *a_vp; - struct buf *a_bp; - } */ *ap; -{ - struct vnode *vp = ap->a_vp; - struct buf *bp = ap->a_bp; - struct mount *mp; - struct thread *td = curthread; - - KASSERT(ap->a_vp->v_rdev == ap->a_bp->b_dev, - ("%s, dev %s != %s", __func__, - devtoname(ap->a_vp->v_rdev), - devtoname(ap->a_bp->b_dev))); - KASSERT(bp->b_iocmd == BIO_READ || bp->b_iocmd == BIO_WRITE, - ("Wrong b_iocmd buf=%p cmd=%d", bp, bp->b_iocmd)); - - /* - * Slow down disk requests for niced processes. - */ - if (doslowdown && td && td->td_proc->p_nice > 0) { - msleep(td, NULL, PPAUSE | PCATCH, "ioslow", - td->td_proc->p_nice); - } - /* - * Collect statistics on synchronous and asynchronous read - * and write counts for disks that have associated filesystems. - */ - if (vn_isdisk(vp, NULL) && (mp = vp->v_rdev->si_mountpoint) != NULL) { - if (bp->b_iocmd == BIO_WRITE) { - if (bp->b_lock.lk_lockholder == LK_KERNPROC) - mp->mnt_stat.f_asyncwrites++; - else - mp->mnt_stat.f_syncwrites++; - } else { - if (bp->b_lock.lk_lockholder == LK_KERNPROC) - mp->mnt_stat.f_asyncreads++; - else - mp->mnt_stat.f_syncreads++; - } - } - - dev_strategy(bp->b_dev, bp); - - return (0); -} - static int devfs_symlink(ap) struct vop_symlink_args /* { @@ -1430,7 +1374,6 @@ static struct vnodeopv_entry_desc devfs_specop_entries[] = { #ifdef MAC { &vop_setlabel_desc, (vop_t *) devfs_setlabel }, #endif - { &vop_specstrategy_desc, (vop_t *) devfs_specstrategy }, { &vop_strategy_desc, (vop_t *) vop_panic }, { &vop_symlink_desc, (vop_t *) vop_panic }, { &vop_write_desc, (vop_t *) devfs_write }, |
