---

yaml
---
r: 62782
b: refs/heads/master
c: b2e961e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 71f65e6bd7651610d2d6aeb3c12aab63667ace30
+refs/heads/master: b2e961eb2e7a54ffaae82f8e0198b26b54ade98e

trunk/Documentation/gpio.txt

@@ -148,7 +148,7 @@ pin ... that won't always match the specified output value, because of
 issues including wire-OR and output latencies.
 
 The get/set calls have no error returns because "invalid GPIO" should have
-been reported earlier in gpio_set_direction().  However, note that not all
+been reported earlier from gpio_direction_*().  However, note that not all
 platforms can read the value of output pins; those that can't should always
 return zero.  Also, using these calls for GPIOs that can't safely be accessed
 without sleeping (see below) is an error.
@@ -239,7 +239,7 @@ map between them using calls like:
 Those return either the corresponding number in the other namespace, or
 else a negative errno code if the mapping can't be done.  (For example,
 some GPIOs can't used as IRQs.)  It is an unchecked error to use a GPIO
-number that hasn't been marked as an input using gpio_set_direction(), or
+number that wasn't set up as an input using gpio_direction_input(), or
 to use an IRQ number that didn't originally come from gpio_to_irq().
 
 These two mapping calls are expected to cost on the order of a single

trunk/Documentation/lguest/Makefile

@@ -11,8 +11,7 @@ endif
 include $(KBUILD_OUTPUT)/.config
 LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000)
 
-CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 \
-	-static -DLGUEST_GUEST_TOP="$(LGUEST_GUEST_TOP)" -Wl,-T,lguest.lds
+CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -Wl,-T,lguest.lds
 LDLIBS:=-lz
 
 all: lguest.lds lguest

trunk/Documentation/lguest/lguest.c

@@ -47,12 +47,14 @@ static bool verbose;
 #define verbose(args...) \
 	do { if (verbose) printf(args); } while(0)
 static int waker_fd;
+static u32 top;
 
 struct device_list
 {
 	fd_set infds;
 	int max_infd;
 
+	struct lguest_device_desc *descs;
 	struct device *dev;
 	struct device **lastdev;
 };
@@ -324,8 +326,7 @@ static void concat(char *dst, char *args[])
 static int tell_kernel(u32 pgdir, u32 start, u32 page_offset)
 {
 	u32 args[] = { LHREQ_INITIALIZE,
-		       LGUEST_GUEST_TOP/getpagesize(), /* Just below us */
-		       pgdir, start, page_offset };
+		       top/getpagesize(), pgdir, start, page_offset };
 	int fd;
 
 	fd = open_or_die("/dev/lguest", O_RDWR);
@@ -382,7 +383,7 @@ static int setup_waker(int lguest_fd, struct device_list *device_list)
 static void *_check_pointer(unsigned long addr, unsigned int size,
 			    unsigned int line)
 {
-	if (addr >= LGUEST_GUEST_TOP || addr + size >= LGUEST_GUEST_TOP)
+	if (addr >= top || addr + size >= top)
 		errx(1, "%s:%i: Invalid address %li", __FILE__, line, addr);
 	return (void *)addr;
 }
@@ -629,24 +630,26 @@ static void handle_input(int fd, struct device_list *devices)
 	}
 }
 
-static struct lguest_device_desc *new_dev_desc(u16 type, u16 features,
-					       u16 num_pages)
+static struct lguest_device_desc *
+new_dev_desc(struct lguest_device_desc *descs,
+	     u16 type, u16 features, u16 num_pages)
 {
-	static unsigned long top = LGUEST_GUEST_TOP;
-	struct lguest_device_desc *desc;
+	unsigned int i;
 
-	desc = malloc(sizeof(*desc));
-	desc->type = type;
-	desc->num_pages = num_pages;
-	desc->features = features;
-	desc->status = 0;
-	if (num_pages) {
-		top -= num_pages*getpagesize();
-		map_zeroed_pages(top, num_pages);
-		desc->pfn = top / getpagesize();
-	} else
-		desc->pfn = 0;
-	return desc;
+	for (i = 0; i < LGUEST_MAX_DEVICES; i++) {
+		if (!descs[i].type) {
+			descs[i].type = type;
+			descs[i].features = features;
+			descs[i].num_pages = num_pages;
+			if (num_pages) {
+				map_zeroed_pages(top, num_pages);
+				descs[i].pfn = top/getpagesize();
+				top += num_pages*getpagesize();
+			}
+			return &descs[i];
+		}
+	}
+	errx(1, "too many devices");
 }
 
 static struct device *new_device(struct device_list *devices,
@@ -669,7 +672,7 @@ static struct device *new_device(struct device_list *devices,
 	dev->fd = fd;
 	if (handle_input)
 		set_fd(dev->fd, devices);
-	dev->desc = new_dev_desc(type, features, num_pages);
+	dev->desc = new_dev_desc(devices->descs, type, features, num_pages);
 	dev->mem = (void *)(dev->desc->pfn * getpagesize());
 	dev->handle_input = handle_input;
 	dev->watch_key = (unsigned long)dev->mem + watch_off;
@@ -866,30 +869,6 @@ static void setup_tun_net(const char *arg, struct device_list *devices)
 		verbose("attached to bridge: %s\n", br_name);
 }
 
-/* Now we know how much memory we have, we copy in device descriptors */
-static void map_device_descriptors(struct device_list *devs, unsigned long mem)
-{
-	struct device *i;
-	unsigned int num;
-	struct lguest_device_desc *descs;
-
-	/* Device descriptor array sits just above top of normal memory */
-	descs = map_zeroed_pages(mem, 1);
-
-	for (i = devs->dev, num = 0; i; i = i->next, num++) {
-		if (num == LGUEST_MAX_DEVICES)
-			errx(1, "too many devices");
-		verbose("Device %i: %s\n", num,
-			i->desc->type == LGUEST_DEVICE_T_NET ? "net"
-			: i->desc->type == LGUEST_DEVICE_T_CONSOLE ? "console"
-			: i->desc->type == LGUEST_DEVICE_T_BLOCK ? "block"
-			: "unknown");
-		descs[num] = *i->desc;
-		free(i->desc);
-		i->desc = &descs[num];
-	}
-}
-
 static void __attribute__((noreturn))
 run_guest(int lguest_fd, struct device_list *device_list)
 {
@@ -934,8 +913,8 @@ static void usage(void)
 
 int main(int argc, char *argv[])
 {
-	unsigned long mem, pgdir, start, page_offset, initrd_size = 0;
-	int c, lguest_fd;
+	unsigned long mem = 0, pgdir, start, page_offset, initrd_size = 0;
+	int i, c, lguest_fd;
 	struct device_list device_list;
 	void *boot = (void *)0;
 	const char *initrd_name = NULL;
@@ -945,6 +924,15 @@ int main(int argc, char *argv[])
 	device_list.lastdev = &device_list.dev;
 	FD_ZERO(&device_list.infds);
 
+	/* We need to know how much memory so we can allocate devices. */
+	for (i = 1; i < argc; i++) {
+		if (argv[i][0] != '-') {
+			mem = top = atoi(argv[i]) * 1024 * 1024;
+			device_list.descs = map_zeroed_pages(top, 1);
+			top += getpagesize();
+			break;
+		}
+	}
 	while ((c = getopt_long(argc, argv, "v", opts, NULL)) != EOF) {
 		switch (c) {
 		case 'v':
@@ -974,16 +962,12 @@ int main(int argc, char *argv[])
 	setup_console(&device_list);
 
 	/* First we map /dev/zero over all of guest-physical memory. */
-	mem = atoi(argv[optind]) * 1024 * 1024;
 	map_zeroed_pages(0, mem / getpagesize());
 
 	/* Now we load the kernel */
 	start = load_kernel(open_or_die(argv[optind+1], O_RDONLY),
 			    &page_offset);
 
-	/* Write the device descriptors into memory. */
-	map_device_descriptors(&device_list, mem);
-
 	/* Map the initrd image if requested */
 	if (initrd_name) {
 		initrd_size = load_initrd(initrd_name, mem);

trunk/arch/powerpc/platforms/cell/spufs/spufs.h

@@ -40,13 +40,10 @@ enum {
 struct spu_context_ops;
 struct spu_gang;
 
-enum {
-	SPU_SCHED_WAS_ACTIVE,	/* was active upon spu_acquire_saved()  */
-};
-
 /* ctx->sched_flags */
 enum {
 	SPU_SCHED_NOTIFY_ACTIVE,
+	SPU_SCHED_WAS_ACTIVE,	/* was active upon spu_acquire_saved()  */
 };
 
 struct spu_context {

trunk/arch/um/drivers/mconsole_kern.c

@@ -499,7 +499,7 @@ static struct mc_device mem_mc = {
 	.remove		= mem_remove,
 };
 
-static int mem_mc_init(void)
+static int __init mem_mc_init(void)
 {
 	if(can_drop_memory())
 		mconsole_register_dev(&mem_mc);
@@ -798,7 +798,7 @@ void mconsole_stack(struct mc_request *req)
  */
 static char *notify_socket = NULL;
 
-static int mconsole_init(void)
+static int __init mconsole_init(void)
 {
 	/* long to avoid size mismatch warnings from gcc */
 	long sock;

trunk/arch/um/drivers/net_kern.c

@@ -623,7 +623,7 @@ static int eth_setup_common(char *str, int index)
 	return found;
 }
 
-static int eth_setup(char *str)
+static int __init eth_setup(char *str)
 {
 	struct eth_init *new;
 	char *error;

trunk/arch/um/kernel/mem.c

@@ -62,7 +62,7 @@ static void setup_highmem(unsigned long highmem_start,
 }
 #endif
 
-void mem_init(void)
+void __init mem_init(void)
 {
 	/* clear the zero-page */
 	memset((void *) empty_zero_page, 0, PAGE_SIZE);

trunk/arch/um/kernel/physmem.c

@@ -28,7 +28,8 @@ unsigned long high_physmem;
 
 extern unsigned long long physmem_size;
 
-int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
+int __init init_maps(unsigned long physmem, unsigned long iomem,
+		     unsigned long highmem)
 {
 	struct page *p, *map;
 	unsigned long phys_len, phys_pages, highmem_len, highmem_pages;
@@ -47,13 +48,7 @@ int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
 	total_pages = phys_pages + iomem_pages + highmem_pages;
 	total_len = phys_len + iomem_len + highmem_len;
 
-	if(kmalloc_ok){
-		map = kmalloc(total_len, GFP_KERNEL);
-		if(map == NULL)
-			map = vmalloc(total_len);
-	}
-	else map = alloc_bootmem_low_pages(total_len);
-
+	map = alloc_bootmem_low_pages(total_len);
 	if(map == NULL)
 		return -ENOMEM;
 
@@ -98,8 +93,8 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len,
 
 extern int __syscall_stub_start;
 
-void setup_physmem(unsigned long start, unsigned long reserve_end,
-		   unsigned long len, unsigned long long highmem)
+void __init setup_physmem(unsigned long start, unsigned long reserve_end,
+			  unsigned long len, unsigned long long highmem)
 {
 	unsigned long reserve = reserve_end - start;
 	int pfn = PFN_UP(__pa(reserve_end));

trunk/arch/um/kernel/skas/process.c

@@ -145,7 +145,7 @@ void init_idle_skas(void)
 
 extern void start_kernel(void);
 
-static int start_kernel_proc(void *unused)
+static int __init start_kernel_proc(void *unused)
 {
 	int pid;
 
@@ -165,7 +165,7 @@ extern int userspace_pid[];
 
 extern char cpu0_irqstack[];
 
-int start_uml_skas(void)
+int __init start_uml_skas(void)
 {
 	stack_protections((unsigned long) &cpu0_irqstack);
 	set_sigstack(cpu0_irqstack, THREAD_SIZE);

trunk/arch/um/os-Linux/aio.c

@@ -14,6 +14,7 @@
 #include "init.h"
 #include "user.h"
 #include "mode.h"
+#include "kern_constants.h"
 
 struct aio_thread_req {
 	enum aio_type type;
@@ -65,47 +66,33 @@ static long io_getevents(aio_context_t ctx_id, long min_nr, long nr,
 static int do_aio(aio_context_t ctx, enum aio_type type, int fd, char *buf,
 		  int len, unsigned long long offset, struct aio_context *aio)
 {
-	struct iocb iocb, *iocbp = &iocb;
+	struct iocb *iocbp = & ((struct iocb) {
+				    .aio_data       = (unsigned long) aio,
+				    .aio_fildes     = fd,
+				    .aio_buf        = (unsigned long) buf,
+				    .aio_nbytes     = len,
+				    .aio_offset     = offset
+			     });
 	char c;
-	int err;
 
-	iocb = ((struct iocb) { .aio_data 	= (unsigned long) aio,
-				.aio_reqprio	= 0,
-				.aio_fildes	= fd,
-				.aio_buf	= (unsigned long) buf,
-				.aio_nbytes	= len,
-				.aio_offset	= offset,
-				.aio_reserved1	= 0,
-				.aio_reserved2	= 0,
-				.aio_reserved3	= 0 });
-
-	switch(type){
+	switch (type) {
 	case AIO_READ:
-		iocb.aio_lio_opcode = IOCB_CMD_PREAD;
-		err = io_submit(ctx, 1, &iocbp);
+		iocbp->aio_lio_opcode = IOCB_CMD_PREAD;
 		break;
 	case AIO_WRITE:
-		iocb.aio_lio_opcode = IOCB_CMD_PWRITE;
-		err = io_submit(ctx, 1, &iocbp);
+		iocbp->aio_lio_opcode = IOCB_CMD_PWRITE;
 		break;
 	case AIO_MMAP:
-		iocb.aio_lio_opcode = IOCB_CMD_PREAD;
-		iocb.aio_buf = (unsigned long) &c;
-		iocb.aio_nbytes = sizeof(c);
-		err = io_submit(ctx, 1, &iocbp);
+		iocbp->aio_lio_opcode = IOCB_CMD_PREAD;
+		iocbp->aio_buf = (unsigned long) &c;
+		iocbp->aio_nbytes = sizeof(c);
 		break;
 	default:
-		printk("Bogus op in do_aio - %d\n", type);
-		err = -EINVAL;
-		break;
+		printk(UM_KERN_ERR "Bogus op in do_aio - %d\n", type);
+		return -EINVAL;
 	}
 
-	if(err > 0)
-		err = 0;
-	else
-		err = -errno;
-
-	return err;
+	return (io_submit(ctx, 1, &iocbp) > 0) ? 0 : -errno;
 }
 
 /* Initialized in an initcall and unchanged thereafter */

trunk/arch/um/os-Linux/process.c

@@ -194,7 +194,7 @@ int os_unmap_memory(void *addr, int len)
 #define MADV_REMOVE KERNEL_MADV_REMOVE
 #endif
 
-int __init os_drop_memory(void *addr, int length)
+int os_drop_memory(void *addr, int length)
 {
 	int err;
 

trunk/arch/um/os-Linux/user_syms.c

@@ -19,10 +19,7 @@ extern void *memmove(void *, const void *, size_t);
 extern void *memset(void *, int, size_t);
 extern int printf(const char *, ...);
 
-/* If they're not defined, the export is included in lib/string.c.*/
-#ifdef __HAVE_ARCH_STRLEN
-EXPORT_SYMBOL(strlen);
-#endif
+/* If it's not defined, the export is included in lib/string.c.*/
 #ifdef __HAVE_ARCH_STRSTR
 EXPORT_SYMBOL(strstr);
 #endif

trunk/arch/um/sys-i386/Makefile

@@ -4,7 +4,7 @@ obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
 
 obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o
 
-subarch-obj-y = lib/bitops.o lib/semaphore.o
+subarch-obj-y = lib/bitops.o lib/semaphore.o lib/string.o
 subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem.o
 subarch-obj-$(CONFIG_MODULES) += kernel/module.o