Merge samba.org:/home/paulus/kernel/linux-2.5

into samba.org:/home/paulus/kernel/for-linus-ppc

arch/sparc64/defconfig

@@ -16,6 +16,9 @@ CONFIG_SYSVIPC=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 CONFIG_LOG_BUF_SHIFT=15
+# CONFIG_EMBEDDED is not set
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
 
 #
 # Loadable module support
@@ -795,6 +798,7 @@ CONFIG_IRDA_FAST_RR=y
 # CONFIG_WINBOND_FIR is not set
 # CONFIG_TOSHIBA_OLD is not set
 # CONFIG_TOSHIBA_FIR is not set
+# CONFIG_SMC_IRCC_OLD is not set
 # CONFIG_SMC_IRCC_FIR is not set
 # CONFIG_ALI_FIR is not set
 # CONFIG_VLSI_FIR is not set
@@ -959,6 +963,8 @@ CONFIG_VFAT_FS=m
 CONFIG_PROC_FS=y
 # CONFIG_DEVFS_FS is not set
 CONFIG_DEVPTS_FS=y
+CONFIG_DEVPTS_FS_XATTR=y
+# CONFIG_DEVPTS_FS_SECURITY is not set
 # CONFIG_TMPFS is not set
 CONFIG_RAMFS=y
 
@@ -1111,6 +1117,7 @@ CONFIG_SND_ICE1712=m
 CONFIG_SND_INTEL8X0=m
 CONFIG_SND_SONICVIBES=m
 # CONFIG_SND_VIA82XX is not set
+CONFIG_SND_VX222=m
 
 #
 # ALSA USB devices

drivers/ieee1394/eth1394.h

@@ -38,7 +38,7 @@
 #define ETHER1394_GASP_SPECIFIER_ID_LO	(ETHER1394_GASP_SPECIFIER_ID & 0xff)
 #define ETHER1394_GASP_VERSION		1
 
-#define ETHER1394_OVERHEAD (2 * sizeof(quadlet_t))  /* GASP header overhead */
+#define ETHER1394_GASP_OVERHEAD (2 * sizeof(quadlet_t))  /* GASP header overhead */
 
 /* Node set == 64 */
 #define NODE_SET			(ALL_NODES + 1)
@@ -56,10 +56,9 @@ struct pdg_list {
 struct eth1394_priv {
 	struct net_device_stats stats;	/* Device stats			 */
 	struct hpsb_host *host;		/* The card for this dev	 */
-	unsigned char max_rec[NODE_SET];/* Max payload per node		 */
+	u16 maxpayload[NODE_SET];	/* Max payload per node		 */
 	unsigned char sspd[NODE_SET];	/* Max speed per node		 */
-	u16 fifo_hi[ALL_NODES];		/* 16bit hi fifo offset per node */
-	u32 fifo_lo[ALL_NODES];		/* 32bit lo fifo offset per node */
+	u64 fifo[ALL_NODES];		/* FIFO offset per node		 */
 	u64 eui[ALL_NODES];		/* EUI-64 per node		 */
 	spinlock_t lock;		/* Private lock			 */
 	int broadcast_channel;		/* Async stream Broadcast Channel */
@@ -74,6 +73,21 @@ struct host_info {
 	struct net_device *dev;
 };
 
+
+/* Define a fake hardware header format for the networking core.  Note that
+ * header size cannot exceed 16 bytes as that is the size of the header cache.
+ * Also, we do not need the source address in the header so we omit it and
+ * keep the header to under 16 bytes */
+#define ETH1394_ALEN (8)
+#define ETH1394_HLEN (10)
+
+struct eth1394hdr {
+	unsigned char	h_dest[ETH1394_ALEN];	/* destination eth1394 addr	*/
+	unsigned short	h_proto;		/* packet type ID field	*/
+}  __attribute__((packed));
+
+
+
 typedef enum {ETH1394_GASP, ETH1394_WRREQ} eth1394_tx_type;
 
 /* IP1394 headers */

drivers/ieee1394/ieee1394.h

@@ -57,7 +57,6 @@
 
 /* Maps speed values above to a string representation */
 extern const char *hpsb_speedto_str[];
-extern const u8 hpsb_speedto_maxrec[];
 
 
 #define SELFID_PWRCL_NO_POWER    0x0

drivers/ieee1394/ieee1394_core.c

@@ -61,7 +61,6 @@ static kmem_cache_t *hpsb_packet_cache;
 
 /* Some globals used */
 const char *hpsb_speedto_str[] = { "S100", "S200", "S400", "S800", "S1600", "S3200" };
-const u8 hpsb_speedto_maxrec[] = {   0x7,    0x8,    0x9,   0x10,    0x11,    0x12 };
 
 static void dump_packet(const char *text, quadlet_t *data, int size)
 {
@@ -1246,7 +1245,6 @@ EXPORT_SYMBOL(hpsb_unref_host);
 
 /** ieee1394_core.c **/
 EXPORT_SYMBOL(hpsb_speedto_str);
-EXPORT_SYMBOL(hpsb_speedto_maxrec);
 EXPORT_SYMBOL(hpsb_set_packet_complete_task);
 EXPORT_SYMBOL(alloc_hpsb_packet);
 EXPORT_SYMBOL(free_hpsb_packet);

drivers/ieee1394/iso.c

@@ -10,6 +10,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include "iso.h"
 
 void hpsb_iso_stop(struct hpsb_iso *iso)

drivers/ieee1394/sbp2.c

@@ -79,7 +79,7 @@
 #include "sbp2.h"
 
 static char version[] __devinitdata =
-	"$Rev: 938 $ Ben Collins <bcollins@debian.org>";
+	"$Rev: 942 $ Ben Collins <bcollins@debian.org>";
 
 /*
  * Module load parameter definitions
@@ -230,6 +230,8 @@ static void sbp2scsi_complete_command(struct scsi_id_instance_data *scsi_id,
 	
 static Scsi_Host_Template scsi_driver_template;
 
+const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xA, 0xB, 0xC };
+
 static struct hpsb_highlevel sbp2_highlevel = {
 	.name =		SBP2_DEVICE_NAME,
 	.remove_host =	sbp2_remove_host,
@@ -779,7 +781,7 @@ static int sbp2_start_ud(struct sbp2scsi_host_info *hi, struct unit_directory *u
 		scsi_id->ne = ud->ne;
 		scsi_id->hi = hi;
 		scsi_id->speed_code = SPEED_100;
-		scsi_id->max_payload_size = hpsb_speedto_maxrec[SPEED_100];
+		scsi_id->max_payload_size = sbp2_speedto_max_payload[SPEED_100];
 		atomic_set(&scsi_id->sbp2_login_complete, 0);
 		INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_inuse);
 		INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
@@ -1690,7 +1692,7 @@ static int sbp2_max_speed_and_size(struct scsi_id_instance_data *scsi_id)
 
 	/* Payload size is the lesser of what our speed supports and what
 	 * our host supports.  */
-	scsi_id->max_payload_size = min(hpsb_speedto_maxrec[scsi_id->speed_code],
+	scsi_id->max_payload_size = min(sbp2_speedto_max_payload[scsi_id->speed_code],
 					(u8)(((be32_to_cpu(hi->host->csr.rom[2]) >> 12) & 0xf) - 1));
 
 	SBP2_ERR("Node[" NODE_BUS_FMT "]: Max speed [%s] - Max payload [%u]",

fs/eventpoll.c

@@ -150,6 +150,14 @@ struct eventpoll {
 	/* Protect the this structure access */
 	rwlock_t lock;
 
+	/*
+	 * This semaphore is used to ensure that files are not removed
+	 * while epoll is using them. This is read-held during the event
+	 * collection loop and it is write-held during the file cleanup
+	 * path, the epoll file exit code and the ctl operations.
+	 */
+	struct rw_semaphore sem;
+
 	/* Wait queue used by sys_epoll_wait() */
 	wait_queue_head_t wq;
 
@@ -279,16 +287,6 @@ static struct super_block *eventpollfs_get_sb(struct file_system_type *fs_type,
 /* Safe wake up implementation */
 static struct poll_safewake psw;
 
-/*
- * This semaphore is used to ensure that files are not removed
- * while epoll is using them. Namely the f_op->poll(), since
- * it has to be called from outside the lock, must be protected.
- * This is read-held during the event transfer loop to userspace
- * and it is write-held during the file cleanup path and the epoll
- * file exit code.
- */
-static struct rw_semaphore epsem;
-
 /* Slab cache used to allocate "struct epitem" */
 static kmem_cache_t *epi_cache;
 
@@ -357,8 +355,8 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
 	list_for_each(lnk, lsthead) {
 		tncur = list_entry(lnk, struct wake_task_node, llink);
 
-		if (tncur->task == this_task) {
-			if (tncur->wq == wq || ++wake_nests > EP_MAX_POLLWAKE_NESTS) {
+		if (tncur->wq == wq ||
+		    (tncur->task == this_task && ++wake_nests > EP_MAX_POLLWAKE_NESTS)) {
 			/*
 			 * Ops ... loop detected or maximum nest level reached.
 			 * We abort this wake by breaking the cycle itself.
@@ -367,7 +365,6 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
 			return;
 		}
 	}
-	}
 
 	/* Add the current task to the list */
 	tnode.task = this_task;
@@ -437,14 +434,15 @@ void eventpoll_release(struct file *file)
 	 * The only hit might come from ep_free() but by holding the semaphore
 	 * will correctly serialize the operation.
 	 */
-	down_write(&epsem);
+
 	while (!list_empty(lsthead)) {
 		epi = list_entry(lsthead->next, struct epitem, fllink);
 
 		EP_LIST_DEL(&epi->fllink);
+		down_write(&epi->ep->sem);
 		ep_remove(epi->ep, epi);
+		up_write(&epi->ep->sem);
 	}
-	up_write(&epsem);
 }
 
 
@@ -568,9 +566,18 @@ asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event *even
 			error = -EEXIST;
 		break;
 	case EPOLL_CTL_DEL:
-		if (epi)
+		if (epi) {
+			/*
+			 * We need to protect the remove operation because another
+			 * thread might be doing an epoll_wait() and using the
+			 * target file.
+			 */
+			down_write(&ep->sem);
+
 			error = ep_remove(ep, epi);
-		else
+
+			up_write(&ep->sem);
+		} else
 			error = -ENOENT;
 		break;
 	case EPOLL_CTL_MOD:
@@ -703,10 +710,6 @@ static int ep_getfd(int *efd, struct inode **einode, struct file **efile)
 	file->f_vfsmnt = mntget(eventpoll_mnt);
 	file->f_dentry = dget(dentry);
 
-	/*
-	 * Initialize the file as read/write because it could be used
-	 * with write() to add/remove/change interest sets.
-	 */
 	file->f_pos = 0;
 	file->f_flags = O_RDONLY;
 	file->f_op = &eventpoll_fops;
@@ -815,6 +818,7 @@ static int ep_init(struct eventpoll *ep, unsigned int hashbits)
 	unsigned int i, hsize;
 
 	rwlock_init(&ep->lock);
+	init_rwsem(&ep->sem);
 	init_waitqueue_head(&ep->wq);
 	init_waitqueue_head(&ep->poll_wait);
 	INIT_LIST_HEAD(&ep->rdllist);
@@ -841,11 +845,15 @@ static void ep_free(struct eventpoll *ep)
 	struct list_head *lsthead, *lnk;
 	struct epitem *epi;
 
+	/* We need to release all tasks waiting for these file */
+	if (waitqueue_active(&ep->poll_wait))
+		ep_poll_safewake(&psw, &ep->poll_wait);
+
 	/*
 	 * We need to lock this because we could be hit by
 	 * eventpoll_release() while we're freeing the "struct eventpoll".
 	 */
-	down_write(&epsem);
+	down_write(&ep->sem);
 
 	/*
 	 * Walks through the whole hash by unregistering poll callbacks.
@@ -863,7 +871,7 @@ static void ep_free(struct eventpoll *ep)
 	/*
 	 * Walks through the whole hash by freeing each "struct epitem". At this
 	 * point we are sure no poll callbacks will be lingering around, and also by
-	 * write-holding "epsem" we can be sure that no file cleanup code will hit
+	 * write-holding "sem" we can be sure that no file cleanup code will hit
 	 * us during this operation. So we can avoid the lock on "ep->lock".
 	 */
 	for (i = 0, hsize = 1 << ep->hashbits; i < hsize; i++) {
@@ -876,7 +884,7 @@ static void ep_free(struct eventpoll *ep)
 		}
 	}
 
-	up_write(&epsem);
+	up_write(&ep->sem);
 
 	/* Free hash pages */
 	ep_free_pages(ep->hpages, EP_HASH_PAGES(ep->hashbits));
@@ -1337,20 +1345,6 @@ static int ep_collect_ready_items(struct eventpoll *ep, struct list_head *txlist
 
 		/* If this file is already in the ready list we exit soon */
 		if (!EP_IS_LINKED(&epi->txlink)) {
-			/*
-			 * We need to increase the usage count of the "struct epitem" because
-			 * another thread might call EPOLL_CTL_DEL on this target and make the
-			 * object to vanish underneath our nose.
-			 */
-			ep_use_epitem(epi);
-
-			/*
-			 * We need to increase the usage count of the "struct file" because
-			 * another thread might call close() on this target and make the file
-			 * to vanish before we will be able to call f_op->poll().
-			 */
-			get_file(epi->file);
-
 			/*
 			 * This is initialized in this way so that the default
 			 * behaviour of the reinjecting code will be to push back
@@ -1389,19 +1383,21 @@ static int ep_send_events(struct eventpoll *ep, struct list_head *txlist,
 	struct epitem *epi;
 	struct epoll_event event[EP_MAX_BUF_EVENTS];
 
+	/*
+	 * We can loop without lock because this is a task private list.
+	 * The test done during the collection loop will guarantee us that
+	 * another task will not try to collect this file. Also, items
+	 * cannot vanish during the loop because we are holding "sem".
+	 */
 	list_for_each(lnk, txlist) {
 		epi = list_entry(lnk, struct epitem, txlink);
 
-		/* Get the ready file event set */
-		revents = epi->file->f_op->poll(epi->file, NULL);
-
 		/*
-		 * Release the file usage before checking the event mask.
-		 * In case this call will lead to the file removal, its
-		 * ->event.events member has been already set to zero and
-		 * this will make the event to be dropped.
+		 * Get the ready file event set. We can safely use the file
+		 * because we are holding the "sem" in read and this will
+		 * guarantee that both the file and the item will not vanish.
 		 */
-		fput(epi->file);
+		revents = epi->file->f_op->poll(epi->file, NULL);
 
 		/*
 		 * Set the return event set for the current file descriptor.
@@ -1416,17 +1412,8 @@ static int ep_send_events(struct eventpoll *ep, struct list_head *txlist,
 			eventbuf++;
 			if (eventbuf == EP_MAX_BUF_EVENTS) {
 				if (__copy_to_user(&events[eventcnt], event,
-						   eventbuf * sizeof(struct epoll_event))) {
-					/*
-					 * We need to complete the loop to decrement the file
-					 * usage before returning from this function.
-					 */
-					for (lnk = lnk->next; lnk != txlist; lnk = lnk->next) {
-						epi = list_entry(lnk, struct epitem, txlink);
-						fput(epi->file);
-					}
+						   eventbuf * sizeof(struct epoll_event)))
 					return -EFAULT;
-				}
 				eventcnt += eventbuf;
 				eventbuf = 0;
 			}
@@ -1447,7 +1434,8 @@ static int ep_send_events(struct eventpoll *ep, struct list_head *txlist,
 /*
  * Walk through the transfer list we collected with ep_collect_ready_items()
  * and, if 1) the item is still "alive" 2) its event set is not empty 3) it's
- * not already linked, links it to the ready list.
+ * not already linked, links it to the ready list. Same as above, we are holding
+ * "sem" so items cannot vanish underneath our nose.
  */
 static void ep_reinject_items(struct eventpoll *ep, struct list_head *txlist)
 {
@@ -1475,8 +1463,6 @@ static void ep_reinject_items(struct eventpoll *ep, struct list_head *txlist)
 			list_add_tail(&epi->rdllink, &ep->rdllist);
 			ricnt++;
 		}
-
-		ep_release_epitem(epi);
 	}
 
 	if (ricnt) {
@@ -1510,17 +1496,12 @@ static int ep_events_transfer(struct eventpoll *ep, struct epoll_event *events,
 
 	/*
 	 * We need to lock this because we could be hit by
-	 * eventpoll_release() while we're transfering
-	 * events to userspace. Read-holding "epsem" will lock
-	 * out eventpoll_release() during the whole
-	 * transfer loop and this will garantie us that the
-	 * file will not vanish underneath our nose when
-	 * we will call f_op->poll() from ep_send_events().
+	 * eventpoll_release() and epoll_ctl(EPOLL_CTL_DEL).
 	 */
-	down_read(&epsem);
+	down_read(&ep->sem);
 
 	/* Collect/extract ready items */
-	if (ep_collect_ready_items(ep, &txlist, maxevents)) {
+	if (ep_collect_ready_items(ep, &txlist, maxevents) > 0) {
 		/* Build result set in userspace */
 		eventcnt = ep_send_events(ep, &txlist, events);
 
@@ -1528,7 +1509,7 @@ static int ep_events_transfer(struct eventpoll *ep, struct epoll_event *events,
 		ep_reinject_items(ep, &txlist);
 	}
 
-	up_read(&epsem);
+	up_read(&ep->sem);
 
 	return eventcnt;
 }
@@ -1652,9 +1633,6 @@ static int __init eventpoll_init(void)
 {
 	int error;
 
-	/* Initialize the semaphore used to syncronize the file cleanup code */
-	init_rwsem(&epsem);
-
 	/* Initialize the structure used to perform safe poll wait head wake ups */
 	ep_poll_safewake_init(&psw);
 

sound/core/ioctl32/pcm32.c

@@ -21,6 +21,7 @@
 #include <sound/driver.h>
 #include <linux/time.h>
 #include <linux/slab.h>
+#include <linux/compat.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include "ioctl32.h"
@@ -136,15 +137,10 @@ struct sndrv_pcm_channel_info32 {
 	COPY(step);\
 }
 
-struct timeval32 {
-	s32 tv_sec;
-	s32 tv_usec;
-} __attribute__((packed));
-
 struct sndrv_pcm_status32 {
 	s32 state;
-	struct timeval32 trigger_tstamp;
-	struct timeval32 tstamp;
+	struct compat_timespec trigger_tstamp;
+	struct compat_timespec tstamp;
 	u32 appl_ptr;
 	u32 hw_ptr;
 	s32 delay;
@@ -159,9 +155,9 @@ struct sndrv_pcm_status32 {
 {\
 	COPY(state);\
 	COPY(trigger_tstamp.tv_sec);\
-	COPY(trigger_tstamp.tv_usec);\
+	COPY(trigger_tstamp.tv_nsec);\
 	COPY(tstamp.tv_sec);\
-	COPY(tstamp.tv_usec);\
+	COPY(tstamp.tv_nsec);\
 	COPY(appl_ptr);\
 	COPY(hw_ptr);\
 	COPY(delay);\

sound/core/ioctl32/rawmidi32.c

@@ -21,6 +21,7 @@
 #include <sound/driver.h>
 #include <linux/time.h>
 #include <linux/fs.h>
+#include <linux/compat.h>
 #include <sound/core.h>
 #include <sound/rawmidi.h>
 #include <asm/uaccess.h>
@@ -42,14 +43,9 @@ struct sndrv_rawmidi_params32 {
 	COPY(no_active_sensing);\
 }
 
-struct timeval32 {
-	s32 tv_sec;
-	s32 tv_usec;
-} __attribute__((packed));
-
 struct sndrv_rawmidi_status32 {
 	s32 stream;
-	struct timeval32 tstamp;
+	struct compat_timespec tstamp;
 	u32 avail;
 	u32 xruns;
 	unsigned char reserved[16];
@@ -59,7 +55,7 @@ struct sndrv_rawmidi_status32 {
 {\
 	COPY(stream);\
 	COPY(tstamp.tv_sec);\
-	COPY(tstamp.tv_usec);\
+	COPY(tstamp.tv_nsec);\
 	COPY(avail);\
 	COPY(xruns);\
 }

sound/core/ioctl32/timer32.c

@@ -21,6 +21,7 @@
 #include <sound/driver.h>
 #include <linux/time.h>
 #include <linux/fs.h>
+#include <linux/compat.h>
 #include <sound/core.h>
 #include <sound/timer.h>
 #include <asm/uaccess.h>
@@ -31,7 +32,7 @@ struct sndrv_timer_info32 {
 	s32 card;
 	unsigned char id[64];
 	unsigned char name[80];
-	u32 ticks;
+	u32 reserved0;
 	u32 resolution;
 	unsigned char reserved[64];
 };
@@ -42,17 +43,11 @@ struct sndrv_timer_info32 {
 	COPY(card);\
 	memcpy(dst->id, src->id, sizeof(src->id));\
 	memcpy(dst->name, src->name, sizeof(src->name));\
-	COPY(ticks);\
 	COPY(resolution);\
 }
 
-struct timeval32 {
-	s32 tv_sec;
-	s32 tv_usec;
-};
-
 struct sndrv_timer_status32 {
-	struct timeval32 tstamp;
+	struct compat_timespec tstamp;
 	u32 resolution;
 	u32 lost;
 	u32 overrun;
@@ -63,7 +58,7 @@ struct sndrv_timer_status32 {
 #define CVT_sndrv_timer_status()\
 {\
 	COPY(tstamp.tv_sec);\
-	COPY(tstamp.tv_usec);\
+	COPY(tstamp.tv_nsec);\
 	COPY(resolution);\
 	COPY(lost);\
 	COPY(overrun);\

sound/drivers/vx/vx_core.c

@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
+#include <linux/init.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/asoundef.h>

sound/sparc/cs4231.c

@@ -716,10 +716,12 @@ static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_STOP:
 	{
 		unsigned int what = 0;
-		snd_pcm_substream_t *s = substream;
+		snd_pcm_substream_t *s;
+		struct list_head *pos;
 		unsigned long flags;
 
-		do {
+		snd_pcm_group_for_each(pos, substream) {
+			s = snd_pcm_group_substream_entry(pos);
 			if (s == chip->playback_substream) {
 				what |= CS4231_PLAYBACK_ENABLE;
 				snd_pcm_trigger_done(s, substream);
@@ -727,8 +729,7 @@ static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd)
 				what |= CS4231_RECORD_ENABLE;
 				snd_pcm_trigger_done(s, substream);
 			}
-			s = s->link_next;
-		} while (s != substream);
+		}
 
 #if 0
 		printk("TRIGGER: what[%x] on(%d)\n",