diff options
Diffstat (limited to 'sys/kern/vfs_vnops.c')
| -rw-r--r-- | sys/kern/vfs_vnops.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c index 83e95731d7c4..306840ff0357 100644 --- a/sys/kern/vfs_vnops.c +++ b/sys/kern/vfs_vnops.c @@ -1443,6 +1443,7 @@ vn_io_fault(struct file *fp, struct uio *uio, struct ucred *active_cred, void *rl_cookie; struct vn_io_fault_args args; int error; + bool rl_locked; doio = uio->uio_rw == UIO_READ ? vn_read : vn_write; vp = fp->f_vnode; @@ -1465,12 +1466,7 @@ vn_io_fault(struct file *fp, struct uio *uio, struct ucred *active_cred, } foffset_lock_uio(fp, uio, flags); - if (do_vn_io_fault(vp, uio)) { - args.kind = VN_IO_FAULT_FOP; - args.args.fop_args.fp = fp; - args.args.fop_args.doio = doio; - args.cred = active_cred; - args.flags = flags | FOF_OFFSET; + if (vp->v_type == VREG) { if (uio->uio_rw == UIO_READ) { rl_cookie = vn_rangelock_rlock(vp, uio->uio_offset, uio->uio_offset + uio->uio_resid); @@ -1482,11 +1478,22 @@ vn_io_fault(struct file *fp, struct uio *uio, struct ucred *active_cred, rl_cookie = vn_rangelock_wlock(vp, uio->uio_offset, uio->uio_offset + uio->uio_resid); } + rl_locked = true; + } else { + rl_locked = false; + } + if (do_vn_io_fault(vp, uio)) { + args.kind = VN_IO_FAULT_FOP; + args.args.fop_args.fp = fp; + args.args.fop_args.doio = doio; + args.cred = active_cred; + args.flags = flags | FOF_OFFSET; error = vn_io_fault1(vp, uio, &args, td); - vn_rangelock_unlock(vp, rl_cookie); } else { error = doio(fp, uio, active_cred, flags | FOF_OFFSET, td); } + if (rl_locked) + vn_rangelock_unlock(vp, rl_cookie); foffset_unlock_uio(fp, uio, flags); return (error); } |