Weaken a bogus dependency on <sys/proc.h> in <sys/buf.h> by #ifdef'ing

the offending inline function (BUF_KERNPROC) on it being #included
already.

I'm not sure BUF_KERNPROC() is even the right thing to do or in the
right place or implemented the right way (inline vs normal function).

Remove consequently unneeded #includes of <sys/proc.h>

sys/dev/usb/ohci_pci.c

@@ -56,7 +56,6 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/bus.h>
-#include <sys/proc.h>
 #include <sys/queue.h>
 #include <machine/bus.h>
 #include <sys/rman.h>

sys/dev/usb/uhci.c

@@ -63,7 +63,6 @@
 #include <machine/cpu.h>
 #endif
 #endif
-#include <sys/proc.h>
 #include <sys/queue.h>
 
 #include <machine/bus.h>

sys/dev/usb/uhci_pci.c

@@ -54,7 +54,6 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/bus.h>
-#include <sys/proc.h>
 #include <sys/queue.h>
 #if defined(__FreeBSD__)
 #include <sys/bus.h>

sys/dev/usb/usbdi.c

@@ -51,7 +51,6 @@
 #endif
 #endif
 #include <sys/malloc.h>
-#include <sys/proc.h>
 
 #include <machine/bus.h>
 

sys/dev/wds/wd7000.c

@@ -133,7 +133,6 @@
 
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/disklabel.h>
 
 #include <cam/cam.h>

sys/fs/cd9660/cd9660_node.c

@@ -42,7 +42,6 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/mount.h>
-#include <sys/proc.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/vnode.h>

sys/fs/msdosfs/msdosfs_denode.c

@@ -53,7 +53,6 @@
 #include <sys/kernel.h>
 #include <sys/mount.h>
 #include <sys/malloc.h>
-#include <sys/proc.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/vnode.h>

sys/fs/nwfs/nwfs_vnops.c

@@ -37,7 +37,6 @@
 #include <sys/kernel.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/fcntl.h>
 #include <sys/mount.h>
 #include <sys/unistd.h>

sys/gnu/ext2fs/ext2_linux_balloc.c

@@ -32,7 +32,6 @@
 #include <sys/systm.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>
 

sys/gnu/ext2fs/ext2_linux_ialloc.c

@@ -33,7 +33,6 @@
 #include <sys/systm.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>
 

sys/gnu/fs/ext2fs/ext2_linux_balloc.c

@@ -32,7 +32,6 @@
 #include <sys/systm.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>
 

sys/gnu/fs/ext2fs/ext2_linux_ialloc.c

@@ -33,7 +33,6 @@
 #include <sys/systm.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>
 

sys/isofs/cd9660/cd9660_node.c

@@ -42,7 +42,6 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/mount.h>
-#include <sys/proc.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/vnode.h>

sys/msdosfs/msdosfs_denode.c

@@ -53,7 +53,6 @@
 #include <sys/kernel.h>
 #include <sys/mount.h>
 #include <sys/malloc.h>
-#include <sys/proc.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/vnode.h>

sys/nwfs/nwfs_vnops.c

@@ -37,7 +37,6 @@
 #include <sys/kernel.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/fcntl.h>
 #include <sys/mount.h>
 #include <sys/unistd.h>

sys/pci/ohci_pci.c

@@ -56,7 +56,6 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/bus.h>
-#include <sys/proc.h>
 #include <sys/queue.h>
 #include <machine/bus.h>
 #include <sys/rman.h>

sys/pci/uhci_pci.c

@@ -54,7 +54,6 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/bus.h>
-#include <sys/proc.h>
 #include <sys/queue.h>
 #if defined(__FreeBSD__)
 #include <sys/bus.h>

sys/sys/buf.h

@@ -304,6 +304,7 @@ do {						\
 	lockdestroy(&(bp)->b_lock);		\
 } while (0)
 
+#ifdef _SYS_PROC_H_	/* Avoid #include <sys/proc.h> pollution */
 /*
  * When initiating asynchronous I/O, change ownership of the lock to the
  * kernel. Once done, the lock may legally released by biodone. The
@@ -320,6 +321,7 @@ BUF_KERNPROC(struct buf *bp)
 		p->p_locks--;
 	bp->b_lock.lk_lockholder = LK_KERNPROC;
 }
+#endif
 /*
  * Find out the number of references to a lock.
  */

sys/ufs/ifs/ifs_lookup.c

@@ -42,7 +42,6 @@
 #include <sys/namei.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/stat.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>

sys/ufs/ifs/ifs_subr.c

@@ -42,7 +42,6 @@
 #include <sys/stat.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
-#include <sys/proc.h>
 #include <sys/mount.h>
 #include <sys/vnode.h>
 #include <sys/conf.h>

sys/ufs/ifs/ifs_vfsops.c

@@ -41,7 +41,6 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/namei.h>
-#include <sys/proc.h>
 #include <sys/kernel.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>

sys/vm/vm_pager.c

@@ -77,7 +77,6 @@
 #include <sys/buf.h>
 #include <sys/ucred.h>
 #include <sys/malloc.h>
-#include <sys/proc.h>
 
 #include <vm/vm.h>
 #include <vm/vm_param.h>