Merge davem@nuts.ninka.net:/home/davem/src/BK/net-2.5

into kernel.bkbits.net:/home/davem/net-2.5

Documentation/vm/hugetlbpage.txt

@@ -67,15 +67,22 @@ If the user applications are going to request hugepages using mmap system
 call, then it is required that system administrator mount a file system of
 type hugetlbfs:
 
-	mount none /mnt/huge -t hugetlbfs
+	mount none /mnt/huge -t hugetlbfs <uid=value> <gid=value> <mode=value>
 
 This command mounts a (pseudo) filesystem of type hugetlbfs on the directory
-/mnt/huge.  Any files created on /mnt/huge uses hugepages.  An example is
-given at the end of this document.
+/mnt/huge.  Any files created on /mnt/huge uses hugepages.  The uid and gid
+options sets the owner and group of the root of the file system.  By default
+the uid and gid of the current process are taken.  The mode option sets the
+mode of root of file system to value & 0777.  This value is given in octal.
+By default the value 0755 is picked.  An example is given at the end of this
+document.
 
 read and write system calls are not supported on files that reside on hugetlb
 file systems.
 
+A regular chown, chgrp and chmod commands (with right permissions) could be
+used to change the file attributes on hugetlbfs.
+
 Also, it is important to note that no such mount command is required if the
 applications are going to use only shmat/shmget system calls.  It is possible
 for same or different applications to use any combination of mmaps and shm*

arch/arm/kernel/process.c

@@ -239,7 +239,7 @@ static unsigned int nr_thread_info;
 #define ll_alloc_task_struct() ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
 #define ll_free_task_struct(p) free_pages((unsigned long)(p),1)
 
-struct thread_info *alloc_thread_info(void)
+struct thread_info *alloc_thread_info(struct task_struct *task)
 {
 	struct thread_info *thread = NULL;
 

drivers/block/deadline-iosched.c

@@ -121,6 +121,15 @@ static inline void deadline_del_drq_hash(struct deadline_rq *drq)
 		__deadline_del_drq_hash(drq);
 }
 
+static void
+deadline_remove_merge_hints(request_queue_t *q, struct deadline_rq *drq)
+{
+	deadline_del_drq_hash(drq);
+
+	if (q->last_merge == &drq->request->queuelist)
+		q->last_merge = NULL;
+}
+
 static inline void
 deadline_add_drq_hash(struct deadline_data *dd, struct deadline_rq *drq)
 {
@@ -310,7 +319,7 @@ static void deadline_remove_request(request_queue_t *q, struct request *rq)
 		struct deadline_data *dd = q->elevator.elevator_data;
 
 		list_del_init(&drq->fifo);
-		deadline_del_drq_hash(drq);
+		deadline_remove_merge_hints(q, drq);
 		deadline_del_drq_rb(dd, drq);
 	}
 }

drivers/md/md.c

@@ -2860,7 +2860,7 @@ static void *md_seq_start(struct seq_file *seq, loff_t *pos)
 	loff_t l = *pos;
 	mddev_t *mddev;
 
-	if (l > 0x10000)
+	if (l >= 0x10000)
 		return NULL;
 	if (!l--)
 		/* header */
@@ -2875,7 +2875,9 @@ static void *md_seq_start(struct seq_file *seq, loff_t *pos)
 			return mddev;
 		}
 	spin_unlock(&all_mddevs_lock);
+	if (!l--)
 		return (void*)2;/* tail */
+	return NULL;
 }
 
 static void *md_seq_next(struct seq_file *seq, void *v, loff_t *pos)

drivers/md/raid0.c

@@ -85,10 +85,8 @@ static int create_strip_zones (mddev_t *mddev)
 	conf->devlist = kmalloc(sizeof(mdk_rdev_t*)*
 				conf->nr_strip_zones*mddev->raid_disks,
 				GFP_KERNEL);
-	if (!conf->devlist) {
-		kfree(conf);
+	if (!conf->devlist)
 		return 1;
-	}
 
 	memset(conf->strip_zone, 0,sizeof(struct strip_zone)*
 				   conf->nr_strip_zones);
@@ -193,8 +191,6 @@ static int create_strip_zones (mddev_t *mddev)
 	printk("raid0: done.\n");
 	return 0;
  abort:
-	kfree(conf->devlist);
-	kfree(conf->strip_zone);
 	return 1;
 }
 
@@ -235,6 +231,8 @@ static int raid0_run (mddev_t *mddev)
 		goto out;
 	mddev->private = (void *)conf;
  
+	conf->strip_zone = NULL;
+	conf->devlist = NULL;
 	if (create_strip_zones (mddev)) 
 		goto out_free_conf;
 
@@ -273,7 +271,7 @@ static int raid0_run (mddev_t *mddev)
 				nb_zone*sizeof(struct strip_zone*));
 	conf->hash_table = kmalloc (sizeof (struct strip_zone *)*nb_zone, GFP_KERNEL);
 	if (!conf->hash_table)
-		goto out_free_zone_conf;
+		goto out_free_conf;
 	size = conf->strip_zone[cur].size;
 
 	for (i=0; i< nb_zone; i++) {
@@ -296,11 +294,10 @@ static int raid0_run (mddev_t *mddev)
 	blk_queue_merge_bvec(&mddev->queue, raid0_mergeable_bvec);
 	return 0;
 
-out_free_zone_conf:
-	kfree(conf->strip_zone);
-	conf->strip_zone = NULL;
-
 out_free_conf:
+	if (conf->strip_zone)
+		kfree(conf->strip_zone);
+	if (conf->devlist)
 		kfree (conf->devlist);
 	kfree(conf);
 	mddev->private = NULL;

drivers/md/raid1.c

@@ -462,7 +462,7 @@ static int make_request(request_queue_t *q, struct bio * bio)
 	mirror_info_t *mirror;
 	r1bio_t *r1_bio;
 	struct bio *read_bio;
-	int i, sum_bios = 0, disks = conf->raid_disks;
+	int i, disks = conf->raid_disks;
 
 	/*
 	 * Register the new request and wait if the reconstruction
@@ -525,6 +525,9 @@ static int make_request(request_queue_t *q, struct bio * bio)
 			r1_bio->write_bios[i] = NULL;
 	}
 	spin_unlock_irq(&conf->device_lock);
+
+	atomic_set(&r1_bio->remaining, 1);
+	md_write_start(mddev);
 	for (i = 0; i < disks; i++) {
 		struct bio *mbio;
 		if (!r1_bio->write_bios[i])
@@ -539,37 +542,7 @@ static int make_request(request_queue_t *q, struct bio * bio)
 		mbio->bi_rw = r1_bio->cmd;
 		mbio->bi_private = r1_bio;
 
-		sum_bios++;
-	}
-	if (!sum_bios) {
-		/*
-		 * If all mirrors are non-operational
-		 * then return an IO error:
-		 */
-		md_write_end(mddev);
-		raid_end_bio_io(r1_bio);
-		return 0;
-	}
-	atomic_set(&r1_bio->remaining, sum_bios+1);
-
-	/*
-	 * We have to be a bit careful about the semaphore above, thats
-	 * why we start the requests separately. Since generic_make_request()
-	 * can sleep, this is the safer solution. Imagine, raid1_end_request
-	 * decreasing the semaphore before we could have set it up ...
-	 * We could play tricks with the semaphore (presetting it and
-	 * correcting at the end if sum_bios is not 'n' but we have to
-	 * do raid1_end_request by hand if all requests finish until we had a
-	 * chance to set up the semaphore correctly ... lots of races).
-	 */
-
-	md_write_start(mddev);
-	for (i=disks; i--; ) {
-		struct bio *mbio;
-		mbio = r1_bio->write_bios[i];
-		if (!mbio)
-			continue;
-
+		atomic_inc(&r1_bio->remaining);
 		generic_make_request(mbio);
 	}
 
@@ -802,7 +775,7 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error)
 static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio)
 {
 	conf_t *conf = mddev_to_conf(mddev);
-	int i, sum_bios = 0;
+	int i;
 	int disks = conf->raid_disks;
 	struct bio *bio, *mbio;
 
@@ -849,7 +822,8 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio)
 	}
 	spin_unlock_irq(&conf->device_lock);
 
-	for (i = 0; i < disks ; i++) {
+	atomic_set(&r1_bio->remaining, 1);
+	for (i = disks; i-- ; ) {
 		if (!r1_bio->write_bios[i])
 			continue;
 		mbio = bio_clone(bio, GFP_NOIO);
@@ -860,32 +834,14 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio)
 		mbio->bi_rw = WRITE;
 		mbio->bi_private = r1_bio;
 
-		sum_bios++;
+		atomic_inc(&r1_bio->remaining);
+		md_sync_acct(conf->mirrors[i].rdev, mbio->bi_size >> 9);
+		generic_make_request(mbio);
 	}
-	if (i != disks)
-		BUG();
-	atomic_set(&r1_bio->remaining, sum_bios);
 
-
-	if (!sum_bios) {
-		/*
-		 * Nowhere to write this to... I guess we
-		 * must be done
-		 */
-		printk(KERN_ALERT "raid1: sync aborting as there is nowhere"
-			" to write sector %llu\n", 
-			(unsigned long long)r1_bio->sector);
+	if (atomic_dec_and_test(&r1_bio->remaining)) {
 		md_done_sync(mddev, r1_bio->master_bio->bi_size >> 9, 0);
 		put_buf(r1_bio);
-		return;
-	}
-	for (i = 0; i < disks ; i++) {
-		mbio = r1_bio->write_bios[i];
-		if (!mbio)
-			continue;
-
-		md_sync_acct(conf->mirrors[i].rdev, mbio->bi_size >> 9);
-		generic_make_request(mbio);
 	}
 }
 

drivers/md/raid5.c

@@ -940,7 +940,7 @@ static void handle_stripe(struct stripe_head *sh)
 			/* and fail all 'written' */
 			bi = sh->dev[i].written;
 			sh->dev[i].written = NULL;
-			while (bi && bi->bi_sector < dev->sector + STRIPE_SECTORS) {
+			while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS) {
 				struct bio *bi2 = bi->bi_next;
 				clear_bit(BIO_UPTODATE, &bi->bi_flags);
 				if (--bi->bi_phys_segments == 0) {

drivers/media/radio/radio-cadet.c

@@ -389,9 +389,6 @@ static int cadet_do_ioctl(struct inode *inode, struct file *file,
 				        v->flags|=VIDEO_TUNER_STEREO_ON;
 			        }
 				v->flags|=cadet_getrds();
-			        if(copy_to_user(arg,&v, sizeof(v))) {
-				        return -EFAULT;
-			        }
 			        break;
 			        case 1:
 			        strcpy(v->name,"AM");
@@ -402,9 +399,6 @@ static int cadet_do_ioctl(struct inode *inode, struct file *file,
 			        v->mode=0;
 			        v->mode|=VIDEO_MODE_AUTO;
 			        v->signal=sigstrength;
-			        if(copy_to_user(arg,&v, sizeof(v))) {
-				        return -EFAULT;
-			        }
 			        break;
 			}
 			return 0;

drivers/media/video/bw-qcam.c

@@ -723,8 +723,6 @@ static int qcam_do_ioctl(struct inode *inode, struct file *file,
 			/* Good question.. its composite or SVHS so.. */
 			v->type = VIDEO_TYPE_CAMERA;
 			strcpy(v->name, "Camera");
-			if(copy_to_user(arg, &v, sizeof(v)))
-				return -EFAULT;
 			return 0;
 		}
 		case VIDIOCSCHAN:

drivers/media/video/zr36120.c

@@ -1693,12 +1693,12 @@ long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonb
 			for (x=0; optr+1<eptr && x<-done->w; x++)
 			{
 				unsigned char a = iptr[x*2];
-				*optr++ = a;
-				*optr++ = a;
+				__put_user(a, optr++);
+				__put_user(a, optr++);
 			}
 			/* and clear the rest of the line */
 			for (x*=2; optr<eptr && x<done->bpl; x++)
-				*optr++ = 0;
+				__put_user(0, optr++);
 			/* next line */
 			iptr += done->bpl;
 		}
@@ -1715,10 +1715,10 @@ long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonb
 		{
 			/* copy to doubled data to userland */
 			for (x=0; optr<eptr && x<-done->w; x++)
-				*optr++ = iptr[x*2];
+				__put_user(iptr[x*2], optr++);
 			/* and clear the rest of the line */
 			for (;optr<eptr && x<done->bpl; x++)
-				*optr++ = 0;
+				__put_user(0, optr++);
 			/* next line */
 			iptr += done->bpl;
 		}
@@ -1727,7 +1727,7 @@ long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonb
 	/* API compliance:
 	 * place the framenumber (half fieldnr) in the last long
 	 */
-	((ulong*)eptr)[-1] = done->fieldnr/2;
+	__put_user(done->fieldnr/2, ((ulong*)eptr)[-1]);
 	}
 
 	/* keep the engine running */

drivers/pnp/pnpbios/proc.c

@@ -29,6 +29,8 @@
 #include <linux/pnpbios.h>
 #include <linux/init.h>
 
+#include <asm/uaccess.h>
+
 static struct proc_dir_entry *proc_pnp = NULL;
 static struct proc_dir_entry *proc_pnp_boot = NULL;
 
@@ -178,18 +180,31 @@ static int proc_write_node(struct file *file, const char *buf,
 	struct pnp_bios_node *node;
 	int boot = (long)data >> 8;
 	u8 nodenum = (long)data;
+	int ret = count;
 
 	node = pnpbios_kmalloc(node_info.max_node_size, GFP_KERNEL);
-	if (!node) return -ENOMEM;
-	if ( pnp_bios_get_dev_node(&nodenum, boot, node) )
-		return -EIO;
-	if (count != node->size - sizeof(struct pnp_bios_node))
-		return -EINVAL;
-	memcpy(node->data, buf, count);
-	if (pnp_bios_set_dev_node(node->handle, boot, node) != 0)
-	    return -EINVAL;
+	if (!node)
+		return -ENOMEM;
+	if (pnp_bios_get_dev_node(&nodenum, boot, node)) {
+		ret = -EIO;
+		goto out;
+	}
+	if (count != node->size - sizeof(struct pnp_bios_node)) {
+		ret = -EINVAL;
+		goto out;
+	}
+	if (copy_from_user(node->data, buf, count)) {
+		ret = -EFAULT;
+		goto out;
+	}
+	if (pnp_bios_set_dev_node(node->handle, boot, node) != 0) {
+		ret = -EINVAL;
+		goto out;
+	}
+	ret = count;
+out:
 	kfree(node);
-	return count;
+	return ret;
 }
 
 int pnpbios_interface_attach_device(struct pnp_bios_node * node)

fs/aio.c

@@ -252,7 +252,7 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 	return ctx;
 
 out_cleanup:
-	atomic_sub(ctx->max_reqs, &aio_nr);	/* undone by __put_ioctx */
+	atomic_sub(ctx->max_reqs, &aio_nr);
 	ctx->max_reqs = 0;	/* prevent __put_ioctx from sub'ing aio_nr */
 	__put_ioctx(ctx);
 	return ERR_PTR(-EAGAIN);
@@ -405,9 +405,6 @@ static struct kiocb *__aio_get_req(struct kioctx *ctx)
 		list_add(&req->ki_list, &ctx->active_reqs);
 		get_ioctx(ctx);
 		ctx->reqs_active++;
-		req->ki_user_obj = NULL;
-		req->ki_ctx = ctx;
-		req->ki_users = 1;
 		okay = 1;
 	}
 	kunmap_atomic(ring, KM_USER0);
@@ -949,7 +946,7 @@ asmlinkage long sys_io_setup(unsigned nr_events, aio_context_t *ctxp)
 		goto out;
 
 	ret = -EINVAL;
-	if (unlikely(ctx || !nr_events || (int)nr_events < 0)) {
+	if (unlikely(ctx || (int)nr_events <= 0)) {
 		pr_debug("EINVAL: io_setup: ctx or nr_events > max\n");
 		goto out;
 	}
@@ -984,9 +981,7 @@ asmlinkage long sys_io_destroy(aio_context_t ctx)
 	return -EINVAL;
 }
 
-int FASTCALL(io_submit_one(struct kioctx *ctx, struct iocb *user_iocb,
-				  struct iocb *iocb));
-int io_submit_one(struct kioctx *ctx, struct iocb *user_iocb,
+int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 			 struct iocb *iocb)
 {
 	struct kiocb *req;
@@ -1098,7 +1093,7 @@ int io_submit_one(struct kioctx *ctx, struct iocb *user_iocb,
  *	fail with -ENOSYS if not implemented.
  */
 asmlinkage long sys_io_submit(aio_context_t ctx_id, long nr,
-			      struct iocb **iocbpp)
+			      struct iocb __user **iocbpp)
 {
 	struct kioctx *ctx;
 	long ret = 0;
@@ -1116,8 +1111,13 @@ asmlinkage long sys_io_submit(aio_context_t ctx_id, long nr,
 		return -EINVAL;
 	}
 
+	/*
+	 * AKPM: should this return a partial result if some of the IOs were
+	 * successfully submitted?
+	 */
 	for (i=0; i<nr; i++) {
-		struct iocb *user_iocb, tmp;
+		struct iocb __user *user_iocb;
+		struct iocb tmp;
 
 		if (unlikely(__get_user(user_iocb, iocbpp + i))) {
 			ret = -EFAULT;

fs/buffer.c

@@ -822,9 +822,6 @@ int __set_page_dirty_buffers(struct page *page)
 		goto out;
 	}
 
-	if (!PageUptodate(page))
-		buffer_error();
-
 	spin_lock(&mapping->private_lock);
 	if (page_has_buffers(page)) {
 		struct buffer_head *head = page_buffers(page);

fs/devfs/base.c

@@ -1710,6 +1710,13 @@ void devfs_remove(const char *fmt, ...)
 	if (n < 64 && buf[0]) {
 		devfs_handle_t de = _devfs_find_entry(NULL, buf, 0);
 
+		if (!de) {
+			printk(KERN_ERR "%s: %s not found, cannot remove\n",
+			       __FUNCTION__, buf);
+			dump_stack();
+			return;
+		}
+
 		write_lock(&de->parent->u.dir.lock);
 		_devfs_unregister(de->parent, de);
 		devfs_put(de);

fs/hugetlbfs/inode.c

@@ -48,9 +48,6 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 	loff_t len;
 	int ret;
 
-	if (!capable(CAP_IPC_LOCK))
-		return -EPERM;
-
 	if (vma->vm_start & ~HPAGE_MASK)
 		return -EINVAL;
 
@@ -231,6 +228,7 @@ static void hugetlbfs_forget_inode(struct inode *inode)
 	spin_unlock(&inode_lock);
 	if (inode->i_data.nrpages)
 		truncate_hugepages(&inode->i_data, 0);
+
 	clear_inode(inode);
 	destroy_inode(inode);
 }
@@ -317,7 +315,6 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = dentry->d_inode;
 	int error;
 	unsigned int ia_valid = attr->ia_valid;
-	unsigned long dn_mask;
 
 	BUG_ON(!inode);
 
@@ -335,26 +332,21 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
 		if (error)
 			goto out;
 		attr->ia_valid &= ~ATTR_SIZE;
-		error = inode_setattr(inode, attr);
 	}
-	if (error)
-		goto out;
-	dn_mask = setattr_mask(ia_valid);
-	if (dn_mask)
-		dnotify_parent(dentry, dn_mask);
+	error = inode_setattr(inode, attr);
 out:
 	return error;
 }
 
-static struct inode *hugetlbfs_get_inode(struct super_block *sb,
-					int mode, dev_t dev)
+static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid, 
+					gid_t gid, int mode, dev_t dev)
 {
 	struct inode * inode = new_inode(sb);
 
 	if (inode) {
 		inode->i_mode = mode;
-		inode->i_uid = current->fsuid;
-		inode->i_gid = current->fsgid;
+		inode->i_uid = uid;
+		inode->i_gid = gid;
 		inode->i_blksize = PAGE_CACHE_SIZE;
 		inode->i_blocks = 0;
 		inode->i_rdev = NODEV;
@@ -391,7 +383,8 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb,
 static int hugetlbfs_mknod(struct inode *dir,
 			struct dentry *dentry, int mode, dev_t dev)
 {
-	struct inode * inode = hugetlbfs_get_inode(dir->i_sb, mode, dev);
+	struct inode * inode = hugetlbfs_get_inode(dir->i_sb, current->fsuid, 
+					current->fsgid, mode, dev);
 	int error = -ENOSPC;
 
 	if (inode) {
@@ -421,7 +414,8 @@ static int hugetlbfs_symlink(struct inode *dir,
 	struct inode *inode;
 	int error = -ENOSPC;
 
-	inode = hugetlbfs_get_inode(dir->i_sb, S_IFLNK|S_IRWXUGO, 0);
+	inode = hugetlbfs_get_inode(dir->i_sb, current->fsuid,
+					current->fsgid, S_IFLNK|S_IRWXUGO, 0);
 	if (inode) {
 		int l = strlen(symname)+1;
 		error = page_symlink(inode, symname, l);
@@ -478,16 +472,68 @@ static struct super_operations hugetlbfs_ops = {
 };
 
 static int
-hugetlbfs_fill_super(struct super_block * sb, void * data, int silent)
+hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
+{
+	char *opt, *value;
+	int ret = 0;
+
+	if (!options)
+		goto out;
+	while ((opt = strsep(&options, ",")) != NULL) {
+		if (!*opt)
+			continue;
+
+		value = strchr(opt, '=');
+		if (!value || !*value) {
+			ret = -EINVAL;
+			goto out;
+		} else {
+			*value++ = '\0';
+		}
+
+		if (!strcmp(opt, "uid"))
+			pconfig->uid = simple_strtoul(value, &value, 0);
+		else if (!strcmp(opt, "gid"))
+			pconfig->gid = simple_strtoul(value, &value, 0);
+		else if (!strcmp(opt, "mode"))
+			pconfig->mode = simple_strtoul(value,&value,0) & 0777U;
+		else {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		if (*value) {
+			ret = -EINVAL;
+			goto out;
+		}
+	}
+	return 0;
+out:
+	pconfig->uid = current->fsuid;
+	pconfig->gid = current->fsgid;
+	pconfig->mode = 0755;
+	return ret;
+}
+
+static int
+hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct inode * inode;
 	struct dentry * root;
+	int ret;
+	struct hugetlbfs_config config;
 
+	ret = hugetlbfs_parse_options(data, &config);
+	if (ret) {
+		printk("hugetlbfs: invalid mount options: %s.\n", data);
+		return ret;
+	}
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
 	sb->s_magic = HUGETLBFS_MAGIC;
 	sb->s_op = &hugetlbfs_ops;
-	inode = hugetlbfs_get_inode(sb, S_IFDIR | 0755, 0);
+	inode = hugetlbfs_get_inode(sb, config.uid, config.gid,
+					S_IFDIR | config.mode, 0);
 	if (!inode)
 		return -ENOMEM;
 
@@ -548,7 +594,8 @@ struct file *hugetlb_zero_setup(size_t size)
 		goto out_dentry;
 
 	error = -ENOSPC;
-	inode = hugetlbfs_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0);
+	inode = hugetlbfs_get_inode(root->d_sb, current->fsuid,
+				current->fsgid, S_IFREG | S_IRWXUGO, 0);
 	if (!inode)
 		goto out_file;
 

fs/jbd/journal.c

@@ -916,7 +916,7 @@ int journal_create(journal_t *journal)
 		__brelse(bh);
 	}
 
-	fsync_bdev(journal->j_dev);
+	sync_blockdev(journal->j_dev);
 	jbd_debug(1, "JBD: journal cleared.\n");
 
 	/* OK, fill in the initial static fields in the new superblock */

fs/reiserfs/file.c

@@ -736,6 +736,7 @@ int reiserfs_prepare_file_region_for_write(
     struct buffer_head *itembuf=NULL; // Buffer head that contains items that we are going to deal with
     INITIALIZE_PATH(path); // path to item, that we are going to deal with.
     __u32 * item=0; // pointer to item we are going to deal with
+    int item_pos=-1; /* Position in indirect item */
 
 
     if ( num_pages < 1 ) {
@@ -807,7 +808,6 @@ int reiserfs_prepare_file_region_for_write(
 
     reiserfs_write_lock(inode->i_sb); // We need that for at least search_by_key()
     for ( i = 0; i < num_pages ; i++ ) { 
-	int item_pos=-1; /* Position in indirect item */
 
 	head = page_buffers(prepared_pages[i]);
 	/* For each buffer in the page */

fs/reiserfs/inode.c

@@ -2109,11 +2109,13 @@ static int reiserfs_write_full_page(struct page *page, struct writeback_control
 	 * someone else could have locked them and sent them down the 
 	 * pipe without locking the page
 	 */
+	bh = head ;
 	do {
 	    if (!buffer_uptodate(bh)) {
 	        partial = 1;
 		break;
 	    }
+	    bh = bh->b_this_page;
 	} while(bh != head);
 	if (!partial)
 	    SetPageUptodate(page);

fs/reiserfs/prints.c

@@ -546,12 +546,13 @@ static int print_desc_block (struct buffer_head * bh)
 {
     struct reiserfs_journal_desc * desc;
 
-    desc = (struct reiserfs_journal_desc *)(bh->b_data);
-    if (memcmp(desc->j_magic, JOURNAL_DESC_MAGIC, 8))
+    if (memcmp(get_journal_desc_magic (bh), JOURNAL_DESC_MAGIC, 8))
 	return 1;
 
+    desc = (struct reiserfs_journal_desc *)(bh->b_data);
     printk ("Desc block %llu (j_trans_id %d, j_mount_id %d, j_len %d)",
-	    (unsigned long long)bh->b_blocknr, desc->j_trans_id, desc->j_mount_id, desc->j_len);
+	    (unsigned long long)bh->b_blocknr, get_desc_trans_id (desc), get_desc_mount_id (desc),
+	    get_desc_trans_len (desc));
 
     return 0;
 }

fs/reiserfs/super.c

@@ -23,9 +23,6 @@
 #include <linux/buffer_head.h>
 #include <linux/vfs.h>
 
-#define REISERFS_OLD_BLOCKSIZE 4096
-#define REISERFS_SUPER_MAGIC_STRING_OFFSET_NJ 20
-
 static struct file_system_type reiserfs_fs_type;
 
 const char reiserfs_3_5_magic_string[] = REISERFS_SUPER_MAGIC_STRING;
@@ -500,8 +497,11 @@ static struct export_operations reiserfs_export_ops = {
    mount options that have values rather than being toggles. */
 typedef struct {
     char * value;
-    int bitmask; /* bit which is to be set in mount_options bitmask when this
-                    value is found, 0 is no bits are to be set */
+    int setmask; /* bitmask which is to set on mount_options bitmask when this
+                    value is found, 0 is no bits are to be changed. */
+    int clrmask; /* bitmask which is to clear on mount_options bitmask when  this
+		    value is found, 0 is no bits are to be changed. This is
+		    applied BEFORE setmask */
 } arg_desc_t;
 
 
@@ -511,25 +511,30 @@ typedef struct {
     char * option_name;
     int arg_required; /* 0 if argument is not required, not 0 otherwise */
     const arg_desc_t * values; /* list of values accepted by an option */
-    int bitmask;  /* bit which is to be set in mount_options bitmask when this
-		     option is selected, 0 is not bits are to be set */
+    int setmask; /* bitmask which is to set on mount_options bitmask when this
+                    value is found, 0 is no bits are to be changed. */
+    int clrmask; /* bitmask which is to clear on mount_options bitmask when  this
+		    value is found, 0 is no bits are to be changed. This is
+		    applied BEFORE setmask */
 } opt_desc_t;
 
 /* possible values for "-o block-allocator=" and bits which are to be set in
    s_mount_opt of reiserfs specific part of in-core super block */
 static const arg_desc_t balloc[] = {
-    {"noborder", REISERFS_NO_BORDER},
-    {"no_unhashed_relocation", REISERFS_NO_UNHASHED_RELOCATION},
-    {"hashed_relocation", REISERFS_HASHED_RELOCATION},
-    {"test4", REISERFS_TEST4},
-    {NULL, -1}
+    {"noborder", 1<<REISERFS_NO_BORDER, 0},
+    {"border", 0, 1<<REISERFS_NO_BORDER},
+    {"no_unhashed_relocation", 1<<REISERFS_NO_UNHASHED_RELOCATION, 0},
+    {"hashed_relocation", 1<<REISERFS_HASHED_RELOCATION, 0},
+    {"test4", 1<<REISERFS_TEST4, 0},
+    {"notest4", 0, 1<<REISERFS_TEST4},
+    {NULL, 0, 0}
 };
 
 static const arg_desc_t tails[] = {
-    {"on", REISERFS_LARGETAIL},
-    {"off", -1},
-    {"small", REISERFS_SMALLTAIL},
-    {NULL, 0}
+    {"on", 1<<REISERFS_LARGETAIL, 1<<REISERFS_SMALLTAIL},
+    {"off", 0, (1<<REISERFS_LARGETAIL)|(1<<REISERFS_SMALLTAIL)},
+    {"small", 1<<REISERFS_SMALLTAIL, 1<<REISERFS_LARGETAIL},
+    {NULL, 0, 0}
 };
 
 int reiserfs_default_io_size = 128 * 1024; /* Default recommended I/O size is 128k.
@@ -571,16 +576,21 @@ static int reiserfs_getopt ( struct super_block * s, char ** cur, opt_desc_t * o
 	/* Ugly special case, probably we should redo options parser so that
 	   it can understand several arguments for some options, also so that
 	   it can fill several bitfields with option values. */
-	reiserfs_parse_alloc_options( s, p + 6);
+	if ( reiserfs_parse_alloc_options( s, p + 6) ) {
+	    return -1;
+	} else {
 	    return 0;
 	}
+    }
 
  
     /* for every option in the list */
     for (opt = opts; opt->option_name; opt ++) {
 	if (!strncmp (p, opt->option_name, strlen (opt->option_name))) {
-	    if (bit_flags && opt->bitmask != -1)
-		set_bit (opt->bitmask, bit_flags);
+	    if (bit_flags) {
+		*bit_flags &= ~opt->clrmask;
+		*bit_flags |= opt->setmask;
+	    }
 	    break;
 	}
     }
@@ -620,7 +630,7 @@ static int reiserfs_getopt ( struct super_block * s, char ** cur, opt_desc_t * o
     }
     
     if (!opt->values) {
-	/* *opt_arg contains pointer to argument */
+	/* *=NULLopt_arg contains pointer to argument */
 	*opt_arg = p;
 	return opt->arg_required;
     }
@@ -628,8 +638,10 @@ static int reiserfs_getopt ( struct super_block * s, char ** cur, opt_desc_t * o
     /* values possible for this option are listed in opt->values */
     for (arg = opt->values; arg->value; arg ++) {
 	if (!strcmp (p, arg->value)) {
-	    if (bit_flags && arg->bitmask != -1 )
-		set_bit (arg->bitmask, bit_flags);
+	    if (bit_flags) {
+		*bit_flags &= ~arg->clrmask;
+		*bit_flags |= arg->setmask;
+	    }
 	    return opt->arg_required;
 	}
     }
@@ -638,7 +650,6 @@ static int reiserfs_getopt ( struct super_block * s, char ** cur, opt_desc_t * o
     return -1;
 }
 
-
 /* returns 0 if something is wrong in option string, 1 - otherwise */
 static int reiserfs_parse_options (struct super_block * s, char * options, /* string given via mount's -o */
 				   unsigned long * mount_options,
@@ -652,18 +663,18 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
     char * arg = NULL;
     char * pos;
     opt_desc_t opts[] = {
-		{"tails", 't', tails, -1},
-		{"notail", 0, 0, -1}, /* Compatibility stuff, so that -o notail
-for old setups still work */
-		{"conv", 0, 0, REISERFS_CONVERT}, 
-		{"attrs", 0, 0, REISERFS_ATTRS}, 
-		{"nolog", 0, 0, -1},
-		{"replayonly", 0, 0, REPLAYONLY},
-		{"block-allocator", 'a', balloc, -1}, 
-		{"resize", 'r', 0, -1},
-		{"jdev", 'j', 0, -1},
-		{"nolargeio", 'w', 0, -1},
-		{NULL, 0, 0, -1}
+	{"tails", 't', tails, 0, 0}, /* Compatibility stuff, so that -o notail for old setups still work */
+	{"notail", 0, 0, 0,  (1<<REISERFS_LARGETAIL)|(1<<REISERFS_SMALLTAIL)},
+	{"conv", 0, 0, 1<<REISERFS_CONVERT, 0},
+	{"attrs", 0, 0, 1<<REISERFS_ATTRS, 0},
+	{"noattrs", 0, 0, 0, 1<<REISERFS_ATTRS},
+	{"nolog", 0, 0, 0, 0}, /* This is unsupported */
+	{"replayonly", 0, 0, 1<<REPLAYONLY, 0},
+	{"block-allocator", 'a', balloc, 0, 0},
+	{"resize", 'r', 0, 0, 0},
+	{"jdev", 'j', 0, 0, 0},
+	{"nolargeio", 'w', 0, 0, 0},
+	{NULL, 0, 0, 0, 0}
     };
 	
     *blocks = 0;
@@ -671,9 +682,6 @@ for old setups still work */
 	/* use default configuration: create tails, journaling on, no
 	   conversion to newest format */
 	return 1;
-    else
-	/* Drop defaults to zeroes */
-	*mount_options = 0;
     
     for (pos = options; pos; ) {
 	c = reiserfs_getopt (s, &pos, opts, &arg, mount_options);
@@ -695,11 +703,25 @@ for old setups still work */
 	}
 
 	if ( c == 'w' ) {
+		char *p=0;
+		int val = simple_strtoul (arg, &p, 0);
+
+		if ( *p != '\0') {
+		    printk ("reiserfs_parse_options: non-numeric value %s for nolargeio option\n", arg);
+		    return 0;
+		}
+		if ( val ) 
 		    reiserfs_default_io_size = PAGE_SIZE;
+		else
+		    reiserfs_default_io_size = 128 * 1024;
 	}
 
 	if (c == 'j') {
 	    if (arg && *arg && jdev_name) {
+		if ( *jdev_name ) { //Hm, already assigned?
+		    printk("reiserfs_parse_options: journal device was already  specified to be %s\n", *jdev_name);
+		    return 0;
+		}
 		*jdev_name = arg;
 	    }
 	}
@@ -731,14 +753,28 @@ static int reiserfs_remount (struct super_block * s, int * mount_flags, char * a
   struct reiserfs_super_block * rs;
   struct reiserfs_transaction_handle th ;
   unsigned long blocks;
-  unsigned long mount_options;
+  unsigned long mount_options = REISERFS_SB(s)->s_mount_opt;
+  unsigned long safe_mask = 0;
 
   rs = SB_DISK_SUPER_BLOCK (s);
 
   if (!reiserfs_parse_options(s, arg, &mount_options, &blocks, NULL))
     return -EINVAL;
   
-  handle_attrs( s );
+  handle_attrs(s);
+
+  /* Add options that are safe here */
+  safe_mask |= 1 << REISERFS_SMALLTAIL;
+  safe_mask |= 1 << REISERFS_LARGETAIL;
+  safe_mask |= 1 << REISERFS_NO_BORDER;
+  safe_mask |= 1 << REISERFS_NO_UNHASHED_RELOCATION;
+  safe_mask |= 1 << REISERFS_HASHED_RELOCATION;
+  safe_mask |= 1 << REISERFS_TEST4;
+  safe_mask |= 1 << REISERFS_ATTRS;
+
+  /* Update the bitmask, taking care to keep
+   * the bits we're not allowed to change here */
+  REISERFS_SB(s)->s_mount_opt = (REISERFS_SB(s)->s_mount_opt & ~safe_mask) |  (mount_options & safe_mask);
 
   if(blocks) {
     int rc = reiserfs_resize(s, blocks);

include/asm-alpha/thread_info.h

@@ -51,7 +51,7 @@ register struct thread_info *__current_thread_info __asm__("$8");
 
 /* Thread information allocation.  */
 #define THREAD_SIZE (2*PAGE_SIZE)
-#define alloc_thread_info() \
+#define alloc_thread_info(tsk) \
   ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
 #define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti) get_task_struct((ti)->task)

include/asm-arm/thread_info.h

@@ -84,7 +84,7 @@ static inline struct thread_info *current_thread_info(void)
 
 #define THREAD_SIZE		(8192)
 
-extern struct thread_info *alloc_thread_info(void);
+extern struct thread_info *alloc_thread_info(struct task_struct *task);
 extern void free_thread_info(struct thread_info *);
 
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-h8300/thread_info.h

@@ -65,7 +65,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 				__get_free_pages(GFP_KERNEL, 1))
 #define free_thread_info(ti)	free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-i386/thread_info.h

@@ -87,7 +87,7 @@ static inline struct thread_info *current_thread_info(void)
 
 /* thread information allocation */
 #define THREAD_SIZE (2*PAGE_SIZE)
-#define alloc_thread_info() ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
+#define alloc_thread_info(tsk) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
 #define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti) get_task_struct((ti)->task)
 #define put_thread_info(ti) put_task_struct((ti)->task)

include/asm-m68k/thread_info.h

@@ -28,10 +28,10 @@ struct thread_info {
 
 /* THREAD_SIZE should be 8k, so handle differently for 4k and 8k machines */
 #if PAGE_SHIFT == 13 /* 8k machines */
-#define alloc_thread_info()   ((struct thread_info *)__get_free_pages(GFP_KERNEL,0))
+#define alloc_thread_info(tsk)   ((struct thread_info *)__get_free_pages(GFP_KERNEL,0))
 #define free_thread_info(ti)  free_pages((unsigned long)(ti),0)
 #else /* otherwise assume 4k pages */
-#define alloc_thread_info()   ((struct thread_info *)__get_free_pages(GFP_KERNEL,1))
+#define alloc_thread_info(tsk)   ((struct thread_info *)__get_free_pages(GFP_KERNEL,1))
 #define free_thread_info(ti)  free_pages((unsigned long)(ti),1)
 #endif /* PAGE_SHIFT == 13 */
 

include/asm-m68knommu/thread_info.h

@@ -65,7 +65,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 				__get_free_pages(GFP_KERNEL, 1))
 #define free_thread_info(ti)	free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-parisc/thread_info.h

@@ -37,7 +37,7 @@ struct thread_info {
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_ORDER)
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_ORDER)
 
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 			__get_free_pages(GFP_KERNEL, THREAD_ORDER))
 #define free_thread_info(ti)    free_pages((unsigned long) (ti), THREAD_ORDER)
 #define get_thread_info(ti)     get_task_struct((ti)->task)

include/asm-ppc/thread_info.h

@@ -54,7 +54,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 				__get_free_pages(GFP_KERNEL, 1))
 #define free_thread_info(ti)	free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-ppc64/thread_info.h

@@ -52,7 +52,7 @@ struct thread_info {
 #define THREAD_SIZE		(PAGE_SIZE << THREAD_ORDER)
 #define THREAD_SHIFT		(PAGE_SHIFT + THREAD_ORDER)
 
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 				__get_free_pages(GFP_KERNEL, THREAD_ORDER))
 #define free_thread_info(ti)	free_pages((unsigned long) (ti), THREAD_ORDER)
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-s390/thread_info.h

@@ -68,7 +68,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 	__get_free_pages(GFP_KERNEL,THREAD_ORDER))
 #define free_thread_info(ti) free_pages((unsigned long) (ti),THREAD_ORDER)
 #define get_thread_info(ti) get_task_struct((ti)->task)

include/asm-sparc/thread_info.h

@@ -78,7 +78,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #endif
 
 BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void)
-#define alloc_thread_info() BTFIXUP_CALL(alloc_thread_info)()
+#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)()
 
 BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
 #define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti)

include/asm-sparc64/thread_info.h

@@ -142,10 +142,10 @@ register struct thread_info *current_thread_info_reg asm("g6");
 
 /* thread information allocation */
 #if PAGE_SHIFT == 13
-#define alloc_thread_info()   ((struct thread_info *)__get_free_pages(GFP_KERNEL, 1))
+#define alloc_thread_info(tsk)((struct thread_info *)__get_free_pages(GFP_KERNEL, 1))
 #define free_thread_info(ti)  free_pages((unsigned long)(ti),1)
 #else /* PAGE_SHIFT == 13 */
-#define alloc_thread_info()   ((struct thread_info *)__get_free_pages(GFP_KERNEL, 0))
+#define alloc_thread_info(tsk)((struct thread_info *)__get_free_pages(GFP_KERNEL, 0))
 #define free_thread_info(ti)  free_pages((unsigned long)(ti),0)
 #endif /* PAGE_SHIFT == 13 */
 

include/asm-um/thread_info.h

@@ -49,7 +49,7 @@ static inline struct thread_info *current_thread_info(void)
 
 /* thread information allocation */
 #define THREAD_SIZE (4*PAGE_SIZE)
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 	__get_free_pages(GFP_KERNEL,2))
 #define free_thread_info(ti) free_pages((unsigned long) (ti), 2)
 #define get_thread_info(ti) get_task_struct((ti)->task)

include/asm-v850/thread_info.h

@@ -54,7 +54,7 @@ struct thread_info {
  */
 
 /* thread information allocation */
-#define alloc_thread_info() ((struct thread_info *) \
+#define alloc_thread_info(tsk) ((struct thread_info *) \
 				__get_free_pages(GFP_KERNEL, 1))
 #define free_thread_info(ti)	free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti)	get_task_struct((ti)->task)

include/asm-x86_64/thread_info.h

@@ -73,7 +73,7 @@ static inline struct thread_info *stack_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info() \
+#define alloc_thread_info(tsk) \
 	((struct thread_info *) __get_free_pages(GFP_KERNEL,THREAD_ORDER))
 #define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_ORDER)
 #define get_thread_info(ti) get_task_struct((ti)->task)

include/linux/aio.h

@@ -41,9 +41,9 @@ struct kioctx;
 #define kiocbClearKicked(iocb)	clear_bit(KIF_KICKED, &(iocb)->ki_flags)
 #define kiocbClearCancelled(iocb)	clear_bit(KIF_CANCELLED, &(iocb)->ki_flags)
 
-#define kiocbIsLocked(iocb)	test_bit(0, &(iocb)->ki_flags)
-#define kiocbIsKicked(iocb)	test_bit(1, &(iocb)->ki_flags)
-#define kiocbIsCancelled(iocb)	test_bit(2, &(iocb)->ki_flags)
+#define kiocbIsLocked(iocb)	test_bit(KIF_LOCKED, &(iocb)->ki_flags)
+#define kiocbIsKicked(iocb)	test_bit(KIF_KICKED, &(iocb)->ki_flags)
+#define kiocbIsCancelled(iocb)	test_bit(KIF_CANCELLED, &(iocb)->ki_flags)
 
 struct kiocb {
 	struct list_head	ki_run_list;

include/linux/hugetlb.h

@@ -72,6 +72,12 @@ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
 #endif /* !CONFIG_HUGETLB_PAGE */
 
 #ifdef CONFIG_HUGETLBFS
+struct hugetlbfs_config {
+        uid_t   uid;
+        gid_t   gid;
+        umode_t mode;
+};
+
 extern struct file_operations hugetlbfs_file_operations;
 extern struct vm_operations_struct hugetlb_vm_ops;
 struct file *hugetlb_zero_setup(size_t);

include/linux/reiserfs_fs.h

@@ -1631,29 +1631,43 @@ struct reiserfs_iget_args {
 /***************************************************************************/
 
 /*#ifdef __KERNEL__*/
+#define get_journal_desc_magic(bh) (bh->b_data + bh->b_size - 12)
 
-/* journal.c see journal.c for all the comments here */
-
-#define JOURNAL_TRANS_HALF 1018   /* must be correct to keep the desc and commit structs at 4k */
+#define journal_trans_half(blocksize) \
+	((blocksize - sizeof (struct reiserfs_journal_desc) + sizeof (__u32) - 12) / sizeof (__u32))
 
+/* journal.c see journal.c for all the comments here */
 
 /* first block written in a commit.  */
 struct reiserfs_journal_desc {
   __u32 j_trans_id ;			/* id of commit */
   __u32 j_len ;			/* length of commit. len +1 is the commit block */
   __u32 j_mount_id ;				/* mount id of this trans*/
-  __u32 j_realblock[JOURNAL_TRANS_HALF] ; /* real locations for each block */
-  char j_magic[12] ;
+  __u32 j_realblock[1] ; /* real locations for each block */
 } ;
 
+#define get_desc_trans_id(d)   le32_to_cpu((d)->j_trans_id)
+#define get_desc_trans_len(d)  le32_to_cpu((d)->j_len)
+#define get_desc_mount_id(d)   le32_to_cpu((d)->j_mount_id)
+
+#define set_desc_trans_id(d,val)       do { (d)->j_trans_id = cpu_to_le32 (val); } while (0)
+#define set_desc_trans_len(d,val)      do { (d)->j_len = cpu_to_le32 (val); } while (0)
+#define set_desc_mount_id(d,val)       do { (d)->j_mount_id = cpu_to_le32 (val); } while (0)
+
 /* last block written in a commit */
 struct reiserfs_journal_commit {
   __u32 j_trans_id ;			/* must match j_trans_id from the desc block */
   __u32 j_len ;			/* ditto */
-  __u32 j_realblock[JOURNAL_TRANS_HALF] ; /* real locations for each block */
-  char j_digest[16] ;			/* md5 sum of all the blocks involved, including desc and commit. not used, kill it */
+  __u32 j_realblock[1] ; /* real locations for each block */
 } ;
 
+#define get_commit_trans_id(c) le32_to_cpu((c)->j_trans_id)
+#define get_commit_trans_len(c)        le32_to_cpu((c)->j_len)
+#define get_commit_mount_id(c) le32_to_cpu((c)->j_mount_id)
+
+#define set_commit_trans_id(c,val)     do { (c)->j_trans_id = cpu_to_le32 (val); } while (0)
+#define set_commit_trans_len(c,val)    do { (c)->j_len = cpu_to_le32 (val); } while (0)
+
 /* this header block gets written whenever a transaction is considered fully flushed, and is more recent than the
 ** last fully flushed transaction.  fully flushed means all the log blocks and all the real blocks are on disk,
 ** and this transaction does not need to be replayed.

include/linux/reiserfs_fs_sb.h

@@ -253,6 +253,8 @@ struct reiserfs_journal {
   struct reiserfs_journal_cnode *j_list_hash_table[JOURNAL_HASH_SIZE] ; /* hash table for all the real buffer heads in all 
   										the transactions */
   struct list_head j_prealloc_list;     /* list of inodes which have preallocated blocks */
+  unsigned long j_max_trans_size ;
+  unsigned long j_max_batch_size ;
 };
 
 #define JOURNAL_DESC_MAGIC "ReIsErLB" /* ick.  magic string to find desc blocks in the journal */

kernel/fork.c

@@ -38,8 +38,6 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 
-static kmem_cache_t *task_struct_cachep;
-
 extern int copy_semundo(unsigned long clone_flags, struct task_struct *tsk);
 extern void exit_semundo(struct task_struct *tsk);
 
@@ -74,7 +72,13 @@ int nr_processes(void)
 	return total;
 }
 
-static void free_task_struct(struct task_struct *tsk)
+#ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
+# define alloc_task_struct()	kmem_cache_alloc(task_struct_cachep, GFP_KERNEL)
+# define free_task_struct(tsk)	kmem_cache_free(task_struct_cachep, (tsk))
+static kmem_cache_t *task_struct_cachep;
+#endif
+
+static void free_task(struct task_struct *tsk)
 {
 	/*
 	 * The task cache is effectively disabled right now.
@@ -84,14 +88,14 @@ static void free_task_struct(struct task_struct *tsk)
 	 */
 	if (tsk != current) {
 		free_thread_info(tsk->thread_info);
-		kmem_cache_free(task_struct_cachep,tsk);
+		free_task_struct(tsk);
 	} else {
 		int cpu = get_cpu();
 
 		tsk = task_cache[cpu];
 		if (tsk) {
 			free_thread_info(tsk->thread_info);
-			kmem_cache_free(task_struct_cachep,tsk);
+			free_task_struct(tsk);
 		}
 		task_cache[cpu] = current;
 		put_cpu();
@@ -106,7 +110,7 @@ void __put_task_struct(struct task_struct *tsk)
 
 	security_task_free(tsk);
 	free_uid(tsk->user);
-	free_task_struct(tsk);
+	free_task(tsk);
 }
 
 void add_wait_queue(wait_queue_head_t *q, wait_queue_t * wait)
@@ -186,6 +190,7 @@ int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync)
 
 void __init fork_init(unsigned long mempages)
 {
+#ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
 	/* create a slab on which task_structs can be allocated */
 	task_struct_cachep =
 		kmem_cache_create("task_struct",
@@ -193,6 +198,7 @@ void __init fork_init(unsigned long mempages)
 				  SLAB_MUST_HWCACHE_ALIGN, NULL, NULL);
 	if (!task_struct_cachep)
 		panic("fork_init(): cannot create task_struct SLAB cache");
+#endif
 
 	/*
 	 * The default maximum number of threads is set to a safe
@@ -222,13 +228,13 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	task_cache[cpu] = NULL;
 	put_cpu();
 	if (!tsk) {
-		ti = alloc_thread_info();
-		if (!ti)
+		tsk = alloc_task_struct();
+		if (!tsk)
 			return NULL;
 
-		tsk = kmem_cache_alloc(task_struct_cachep, GFP_KERNEL);
-		if (!tsk) {
-			free_thread_info(ti);
+		ti = alloc_thread_info(tsk);
+		if (!ti) {
+			free_task_struct(tsk);
 			return NULL;
 		}
 	} else
@@ -1041,7 +1047,7 @@ struct task_struct *copy_process(unsigned long clone_flags,
 	atomic_dec(&p->user->processes);
 	free_uid(p->user);
 bad_fork_free:
-	free_task_struct(p);
+	free_task(p);
 	goto fork_out;
 }
 

kernel/timer.c

@@ -1226,47 +1226,36 @@ void __init init_timers(void)
 }
 
 #ifdef CONFIG_TIME_INTERPOLATION
-
 volatile unsigned long last_nsec_offset;
-
-struct time_interpolator *time_interpolator;
-
 #ifndef __HAVE_ARCH_CMPXCHG
 spinlock_t last_nsec_offset_lock = SPIN_LOCK_UNLOCKED;
 #endif
 
-static struct {
-	spinlock_t lock;		/* lock protecting list */
-	struct time_interpolator *list;	/* list of registered interpolators */
-} ti_global = {
-	.lock = SPIN_LOCK_UNLOCKED
-};
+struct time_interpolator *time_interpolator;
+struct time_interpolator *time_interpolator_list;
+spinlock_t time_interpolator_lock = SPIN_LOCK_UNLOCKED;
 
 static inline int
 is_better_time_interpolator(struct time_interpolator *new)
 {
 	if (!time_interpolator)
 		return 1;
-	return new->frequency > 2*time_interpolator->frequency
-		|| (unsigned long) new->drift < (unsigned long) time_interpolator->drift;
+	return new->frequency > 2*time_interpolator->frequency ||
+	    (unsigned long)new->drift < (unsigned long)time_interpolator->drift;
 }
 
 void
 register_time_interpolator(struct time_interpolator *ti)
 {
-	spin_lock(&ti_global.lock);
-	{
+	spin_lock(&time_interpolator_lock);
 	write_seqlock_irq(&xtime_lock);
-		{
 	if (is_better_time_interpolator(ti))
 		time_interpolator = ti;
-		}
 	write_sequnlock_irq(&xtime_lock);
 
-		ti->next = ti_global.list;
-		ti_global.list = ti;
-	}
-	spin_unlock(&ti_global.lock);
+	ti->next = time_interpolator_list;
+	time_interpolator_list = ti;
+	spin_unlock(&time_interpolator_lock);
 }
 
 void
@@ -1274,9 +1263,8 @@ unregister_time_interpolator(struct time_interpolator *ti)
 {
 	struct time_interpolator *curr, **prev;
 
-	spin_lock(&ti_global.lock);
-	{
-		prev = &ti_global.list;
+	spin_lock(&time_interpolator_lock);
+	prev = &time_interpolator_list;
 	for (curr = *prev; curr; curr = curr->next) {
 		if (curr == ti) {
 			*prev = curr->next;
@@ -1284,20 +1272,17 @@ unregister_time_interpolator(struct time_interpolator *ti)
 		}
 		prev = &curr->next;
 	}
+
 	write_seqlock_irq(&xtime_lock);
-		{
 	if (ti == time_interpolator) {
 		/* we lost the best time-interpolator: */
 		time_interpolator = NULL;
 		/* find the next-best interpolator */
-				for (curr = ti_global.list; curr; curr = curr->next)
+		for (curr = time_interpolator_list; curr; curr = curr->next)
 			if (is_better_time_interpolator(curr))
 				time_interpolator = curr;
 	}
-		}
 	write_sequnlock_irq(&xtime_lock);
-	}
-	spin_unlock(&ti_global.lock);
+	spin_unlock(&time_interpolator_lock);
 }
-
 #endif /* CONFIG_TIME_INTERPOLATION */

mm/filemap.c

@@ -81,8 +81,6 @@ void __remove_from_page_cache(struct page *page)
 {
 	struct address_space *mapping = page->mapping;
 
-	BUG_ON(PageDirty(page) && !PageSwapCache(page));
-
 	radix_tree_delete(&mapping->page_tree, page->index);
 	list_del(&page->list);
 	page->mapping = NULL;
@@ -1410,6 +1408,11 @@ void remove_suid(struct dentry *dentry)
 	}
 }
 
+/*
+ * Copy as much as we can into the page and return the number of bytes which
+ * were sucessfully copied.  If a fault is encountered then clear the page
+ * out to (offset+bytes) and return the number of bytes which were copied.
+ */
 static inline size_t
 filemap_copy_from_user(struct page *page, unsigned long offset,
 			const char __user *buf, unsigned bytes)
@@ -1427,30 +1430,42 @@ filemap_copy_from_user(struct page *page, unsigned long offset,
 		left = __copy_from_user(kaddr + offset, buf, bytes);
 		kunmap(page);
 	}
-	return left ? 0 : bytes;
+	return bytes - left;
 }
 
 static size_t
 __filemap_copy_from_user_iovec(char *vaddr, 
 			const struct iovec *iov, size_t base, size_t bytes)
 {
-	size_t copied = 0;
+	size_t copied = 0, left = 0;
 
 	while (bytes) {
 		char __user *buf = iov->iov_base + base;
 		int copy = min(bytes, iov->iov_len - base);
 
 		base = 0;
-		if (__copy_from_user(vaddr, buf, copy))
-			break;
+		left = __copy_from_user(vaddr, buf, copy);
 		copied += copy;
 		bytes -= copy;
 		vaddr += copy;
 		iov++;
+
+		if (unlikely(left)) {
+			/* zero the rest of the target like __copy_from_user */
+			if (bytes)
+				memset(vaddr, 0, bytes);
+			break;
 		}
-	return copied;
+	}
+	return copied - left;
 }
 
+/*
+ * This has the same sideeffects and return value as filemap_copy_from_user().
+ * The difference is that on a fault we need to memset the remainder of the
+ * page (out to offset+bytes), to emulate filemap_copy_from_user()'s
+ * single-segment behaviour.
+ */
 static inline size_t
 filemap_copy_from_user_iovec(struct page *page, unsigned long offset,
 			const struct iovec *iov, size_t base, size_t bytes)
@@ -1718,8 +1733,7 @@ generic_file_aio_write_nolock(struct kiocb *iocb, const struct iovec *iov,
 			copied = filemap_copy_from_user_iovec(page, offset,
 						cur_iov, iov_base, bytes);
 		flush_dcache_page(page);
-		status = a_ops->commit_write(file, page, offset,
-						offset + copied);
+		status = a_ops->commit_write(file, page, offset, offset+bytes);
 		if (likely(copied > 0)) {
 			if (!status)
 				status = copied;

scripts/kconfig/conf.c

@@ -286,10 +286,14 @@ static int conf_choice(struct menu *menu)
 			break;
 		}
 	} else {
-		sym->user = sym->curr;
-		if (sym->curr.tri == mod) {
+		switch (sym_get_tristate_value(sym)) {
+		case no:
+			return 1;
+		case mod:
 			printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
 			return 0;
+		case yes:
+			break;
 		}
 	}
 

scripts/kconfig/confdata.c

@@ -243,6 +243,7 @@ int conf_read(const char *name)
 		prop = sym_get_choice_prop(sym);
 		sym->flags &= ~SYMBOL_NEW;
 		for (e = prop->expr; e; e = e->left.expr)
+			if (e->right.sym->visible != no)
 				sym->flags |= e->right.sym->flags & SYMBOL_NEW;
 	}
 

scripts/kconfig/menu.c

@@ -221,9 +221,16 @@ void menu_finalize(struct menu *parent)
 	for (menu = parent->list; menu; menu = menu->next) {
 		if (sym && sym_is_choice(sym) && menu->sym) {
 			menu->sym->flags |= SYMBOL_CHOICEVAL;
+			if (!menu->prompt)
+				fprintf(stderr, "%s:%d:warning: choice value must have a prompt\n",
+					menu->file->name, menu->lineno);
 			for (prop = menu->sym->prop; prop; prop = prop->next) {
-				if (prop->type != P_DEFAULT)
-					continue;
+				if (prop->type == P_PROMPT && prop->menu != menu) {
+					fprintf(stderr, "%s:%d:warning: choice values currently only support a single prompt\n",
+						prop->file->name, prop->lineno);
+					
+				}
+				if (prop->type == P_DEFAULT)
 					fprintf(stderr, "%s:%d:warning: defaults for choice values not supported\n",
 						prop->file->name, prop->lineno);
 			}
@@ -311,14 +318,6 @@ bool menu_is_visible(struct menu *menu)
 	} else
 		visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
 
-	if (sym && sym_is_choice(sym)) {
-		for (child = menu->list; child; child = child->next)
-			if (menu_is_visible(child))
-				break;
-		if (!child)
-			return false;
-	}
-
 	if (visible != no)
 		return true;
 	if (!sym || sym_get_tristate_value(menu->sym) == no)

scripts/kconfig/symbol.c

@@ -201,6 +201,9 @@ static struct symbol *sym_calc_choice(struct symbol *sym)
 		if (def_sym->visible != no)
 			return def_sym;
 	}
+
+	/* no choice? reset tristate value */
+	sym->curr.tri = no;
 	return NULL;
 }
 

sound/oss/cmpci.c

@@ -580,15 +580,17 @@ static void set_ac3(struct cm_state *s, unsigned rate)
 	spin_unlock_irqrestore(&s->lock, flags);
 }
 
-static void trans_ac3(struct cm_state *s, void *dest, const char *source, int size)
+static int trans_ac3(struct cm_state *s, void *dest, const char *source, int size)
 {
 	int   i = size / 2;
+	int err;
 	unsigned long data;
 	unsigned long *dst = (unsigned long *) dest;
 	unsigned short *src = (unsigned short *)source;
 
 	do {
-		data = (unsigned long) *src++;
+		if ((err = __get_user(data, src++)))
+			return err;
 		data <<= 12;			// ok for 16-bit data
 		if (s->spdif_counter == 2 || s->spdif_counter == 3)
 			data |= 0x40000000;	// indicate AC-3 raw data
@@ -605,6 +607,8 @@ static void trans_ac3(struct cm_state *s, void *dest, const char *source, int si
 		if (s->spdif_counter == 384)
 			s->spdif_counter = 0;
 	} while (--i);
+
+	return 0;
 }
 
 static void set_adc_rate_unlocked(struct cm_state *s, unsigned rate)
@@ -1655,13 +1659,16 @@ static ssize_t cm_write(struct file *file, const char *buffer, size_t count, lof
 			continue;
 		}
 		if (s->status & DO_AC3_SW) {
+			int err;
+
 			// clip exceeded data, caught by 033 and 037
 			if (swptr + 2 * cnt > s->dma_dac.dmasize)
 				cnt = (s->dma_dac.dmasize - swptr) / 2;
-			trans_ac3(s, s->dma_dac.rawbuf + swptr, buffer, cnt);
+			if ((err = trans_ac3(s, s->dma_dac.rawbuf + swptr, buffer, cnt)))
+				return err;
 			swptr = (swptr + 2 * cnt) % s->dma_dac.dmasize;
 		} else if (s->status & DO_DUAL_DAC) {
-			int	i;
+			int	i, err;
 			unsigned long *src, *dst0, *dst1;
 
 			src = (unsigned long *) buffer;
@@ -1669,8 +1676,10 @@ static ssize_t cm_write(struct file *file, const char *buffer, size_t count, lof
 			dst1 = (unsigned long *) (s->dma_adc.rawbuf + swptr);
 			// copy left/right sample at one time
 			for (i = 0; i <= cnt / 4; i++) {
-				*dst0++ = *src++;
-				*dst1++ = *src++;
+				if ((err = __get_user(*dst0++, src++)))
+					return err;
+				if ((err = __get_user(*dst1++, src++)))
+					return err;
 			}
 			swptr = (swptr + cnt) % s->dma_dac.dmasize;
 		} else {