7 files changed, 135 insertions, 228 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile
index b9d5d678aa4..52a7d2596d3 100644
--- a/arch/powerpc/platforms/cell/spufs/Makefile
+++ b/arch/powerpc/platforms/cell/spufs/Makefile
@@ -1,8 +1,9 @@
 
 obj-$(CONFIG_SPU_FS) += spufs.o
-spufs-y += inode.o file.o context.o syscalls.o coredump.o
+spufs-y += inode.o file.o context.o syscalls.o
 spufs-y += sched.o backing_ops.o hw_ops.o run.o gang.o
 spufs-y += switch.o fault.o lscsa_alloc.o
+spufs-$(CONFIG_COREDUMP) += coredump.o
 
 # magic for the trace events
 CFLAGS_sched.o := -I$(src)
diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index c2c5b078ba8..be6212ddbf0 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -27,6 +27,8 @@
 #include <linux/gfp.h>
 #include <linux/list.h>
 #include <linux/syscalls.h>
+#include <linux/coredump.h>
+#include <linux/binfmts.h>
 
 #include <asm/uaccess.h>
 
@@ -48,44 +50,6 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer,
 	return ++ret; /* count trailing NULL */
 }
 
-/*
- * These are the only things you should do on a core-file: use only these
- * functions to write out all the necessary info.
- */
-static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset)
-{
-	unsigned long limit = rlimit(RLIMIT_CORE);
-	ssize_t written;
-
-	if (*foffset + nr > limit)
-		return -EIO;
-
-	written = file->f_op->write(file, addr, nr, &file->f_pos);
-	*foffset += written;
-
-	if (written != nr)
-		return -EIO;
-
-	return 0;
-}
-
-static int spufs_dump_align(struct file *file, char *buf, loff_t new_off,
-			    loff_t *foffset)
-{
-	int rc, size;
-
-	size = min((loff_t)PAGE_SIZE, new_off - *foffset);
-	memset(buf, 0, size);
-
-	rc = 0;
-	while (rc == 0 && new_off > *foffset) {
-		size = min((loff_t)PAGE_SIZE, new_off - *foffset);
-		rc = spufs_dump_write(file, buf, size, foffset);
-	}
-
-	return rc;
-}
-
 static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
 {
 	int i, sz, total = 0;
@@ -106,6 +70,17 @@ static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
 	return total;
 }
 
+static int match_context(const void *v, struct file *file, unsigned fd)
+{
+	struct spu_context *ctx;
+	if (file->f_op != &spufs_context_fops)
+		return 0;
+	ctx = SPUFS_I(file_inode(file))->i_ctx;
+	if (ctx->flags & SPU_CREATE_NOSCHED)
+		return 0;
+	return fd + 1;
+}
+
 /*
  * The additional architecture-specific notes for Cell are various
  * context files in the spu context.
@@ -115,29 +90,18 @@ static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
  * internal functionality to dump them without needing to actually
  * open the files.
  */
+/*
+ * descriptor table is not shared, so files can't change or go away.
+ */
 static struct spu_context *coredump_next_context(int *fd)
 {
-	struct fdtable *fdt = files_fdtable(current->files);
 	struct file *file;
-	struct spu_context *ctx = NULL;
-
-	for (; *fd < fdt->max_fds; (*fd)++) {
-		if (!fd_is_open(*fd, fdt))
-			continue;
-
-		file = fcheck(*fd);
-
-		if (!file || file->f_op != &spufs_context_fops)
-			continue;
-
-		ctx = SPUFS_I(file->f_dentry->d_inode)->i_ctx;
-		if (ctx->flags & SPU_CREATE_NOSCHED)
-			continue;
-
-		break;
-	}
-
-	return ctx;
+	int n = iterate_fd(current->files, *fd, match_context, NULL);
+	if (!n)
+		return NULL;
+	*fd = n - 1;
+	file = fcheck(*fd);
+	return SPUFS_I(file_inode(file))->i_ctx;
 }
 
 int spufs_coredump_extra_notes_size(void)
@@ -165,10 +129,10 @@ int spufs_coredump_extra_notes_size(void)
 }
 
 static int spufs_arch_write_note(struct spu_context *ctx, int i,
-				  struct file *file, int dfd, loff_t *foffset)
+				  struct coredump_params *cprm, int dfd)
 {
 	loff_t pos = 0;
-	int sz, rc, nread, total = 0;
+	int sz, rc, total = 0;
 	const int bufsz = PAGE_SIZE;
 	char *name;
 	char fullname[80], *buf;
@@ -186,42 +150,39 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 	en.n_descsz = sz;
 	en.n_type = NT_SPU;
 
-	rc = spufs_dump_write(file, &en, sizeof(en), foffset);
-	if (rc)
-		goto out;
+	if (!dump_emit(cprm, &en, sizeof(en)))
+		goto Eio;
 
-	rc = spufs_dump_write(file, fullname, en.n_namesz, foffset);
-	if (rc)
-		goto out;
+	if (!dump_emit(cprm, fullname, en.n_namesz))
+		goto Eio;
 
-	rc = spufs_dump_align(file, buf, roundup(*foffset, 4), foffset);
-	if (rc)
-		goto out;
+	if (!dump_align(cprm, 4))
+		goto Eio;
 
 	do {
-		nread = do_coredump_read(i, ctx, buf, bufsz, &pos);
-		if (nread > 0) {
-			rc = spufs_dump_write(file, buf, nread, foffset);
-			if (rc)
-				goto out;
-			total += nread;
+		rc = do_coredump_read(i, ctx, buf, bufsz, &pos);
+		if (rc > 0) {
+			if (!dump_emit(cprm, buf, rc))
+				goto Eio;
+			total += rc;
 		}
-	} while (nread == bufsz && total < sz);
+	} while (rc == bufsz && total < sz);
 
-	if (nread < 0) {
-		rc = nread;
+	if (rc < 0)
 		goto out;
-	}
-
-	rc = spufs_dump_align(file, buf, roundup(*foffset - total + sz, 4),
-			      foffset);
 
+	if (!dump_skip(cprm,
+		       roundup(cprm->written - total + sz, 4) - cprm->written))
+		goto Eio;
 out:
 	free_page((unsigned long)buf);
 	return rc;
+Eio:
+	free_page((unsigned long)buf);
+	return -EIO;
 }
 
-int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
+int spufs_coredump_extra_notes_write(struct coredump_params *cprm)
 {
 	struct spu_context *ctx;
 	int fd, j, rc;
@@ -233,7 +194,7 @@ int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
 			return rc;
 
 		for (j = 0; spufs_coredump_read[j].name != NULL; j++) {
-			rc = spufs_arch_write_note(ctx, j, file, fd, foffset);
+			rc = spufs_arch_write_note(ctx, j, cprm, fd);
 			if (rc) {
 				spu_release_saved(ctx);
 				return rc;
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0cfece4cf6e..90986923a53 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -149,7 +149,6 @@ static int __fops ## _open(struct inode *inode, struct file *file)	\
 	return spufs_attr_open(inode, file, __get, __set, __fmt);	\
 }									\
 static const struct file_operations __fops = {				\
-	.owner	 = THIS_MODULE,						\
 	.open	 = __fops ## _open,					\
 	.release = spufs_attr_release,					\
 	.read	 = spufs_attr_read,					\
@@ -352,7 +351,7 @@ static unsigned long spufs_get_unmapped_area(struct file *file,
 
 	/* Else, try to obtain a 64K pages slice */
 	return slice_get_unmapped_area(addr, len, flags,
-				       MMU_PAGE_64K, 1, 0);
+				       MMU_PAGE_64K, 1);
 }
 #endif /* CONFIG_SPU_FS_64K_LS */
 
@@ -1852,7 +1851,7 @@ out:
 
 static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	struct inode *inode = file->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	int err = filemap_write_and_wait_range(inode->i_mapping, start, end);
 	if (!err) {
 		mutex_lock(&inode->i_mutex);
@@ -2501,7 +2500,7 @@ static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n)
 static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
 			     size_t len, loff_t *ppos)
 {
-	struct inode *inode = file->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
 	int error = 0, cnt = 0;
 
@@ -2571,7 +2570,7 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
 
 static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait)
 {
-	struct inode *inode = file->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
 	unsigned int mask = 0;
 	int rc;
@@ -2591,7 +2590,6 @@ static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait)
 }
 
 static const struct file_operations spufs_switch_log_fops = {
-	.owner		= THIS_MODULE,
 	.open		= spufs_switch_log_open,
 	.read		= spufs_switch_log_read,
 	.poll		= spufs_switch_log_poll,
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 66519d263da..87ba7cf99cd 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -99,6 +99,7 @@ spufs_new_inode(struct super_block *sb, umode_t mode)
 	if (!inode)
 		goto out;
 
+	inode->i_ino = get_next_ino();
 	inode->i_mode = mode;
 	inode->i_uid = current_fsuid();
 	inode->i_gid = current_fsgid();
@@ -186,47 +187,31 @@ static void spufs_prune_dir(struct dentry *dir)
 static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 {
 	/* remove all entries */
+	int res;
 	spufs_prune_dir(dir);
 	d_drop(dir);
-
-	return simple_rmdir(parent, dir);
+	res = simple_rmdir(parent, dir);
+	/* We have to give up the mm_struct */
+	spu_forget(SPUFS_I(dir->d_inode)->i_ctx);
+	return res;
 }
 
 static int spufs_fill_dir(struct dentry *dir,
 		const struct spufs_tree_descr *files, umode_t mode,
 		struct spu_context *ctx)
 {
-	struct dentry *dentry, *tmp;
-	int ret;
-
 	while (files->name && files->name[0]) {
-		ret = -ENOMEM;
-		dentry = d_alloc_name(dir, files->name);
+		int ret;
+		struct dentry *dentry = d_alloc_name(dir, files->name);
 		if (!dentry)
-			goto out;
+			return -ENOMEM;
 		ret = spufs_new_file(dir->d_sb, dentry, files->ops,
 					files->mode & mode, files->size, ctx);
 		if (ret)
-			goto out;
+			return ret;
 		files++;
 	}
 	return 0;
-out:
-	/*
-	 * remove all children from dir. dir->inode is not set so don't
-	 * just simply use spufs_prune_dir() and panic afterwards :)
-	 * dput() looks like it will do the right thing:
-	 * - dec parent's ref counter
-	 * - remove child from parent's child list
-	 * - free child's inode if possible
-	 * - free child
-	 */
-	list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_u.d_child) {
-		dput(dentry);
-	}
-
-	shrink_dcache_parent(dir);
-	return ret;
 }
 
 static int spufs_dir_close(struct inode *inode, struct file *file)
@@ -245,9 +230,6 @@ static int spufs_dir_close(struct inode *inode, struct file *file)
 	mutex_unlock(&parent->i_mutex);
 	WARN_ON(ret);
 
-	/* We have to give up the mm_struct */
-	spu_forget(ctx);
-
 	return dcache_dir_close(inode, file);
 }
 
@@ -256,7 +238,7 @@ const struct file_operations spufs_context_fops = {
 	.release	= spufs_dir_close,
 	.llseek		= dcache_dir_lseek,
 	.read		= generic_read_dir,
-	.readdir	= dcache_readdir,
+	.iterate	= dcache_readdir,
 	.fsync		= noop_fsync,
 };
 EXPORT_SYMBOL_GPL(spufs_context_fops);
@@ -269,10 +251,9 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags,
 	struct inode *inode;
 	struct spu_context *ctx;
 
-	ret = -ENOSPC;
 	inode = spufs_new_inode(dir->i_sb, mode | S_IFDIR);
 	if (!inode)
-		goto out;
+		return -ENOSPC;
 
 	if (dir->i_mode & S_ISGID) {
 		inode->i_gid = dir->i_gid;
@@ -280,65 +261,58 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags,
 	}
 	ctx = alloc_spu_context(SPUFS_I(dir)->i_gang); /* XXX gang */
 	SPUFS_I(inode)->i_ctx = ctx;
-	if (!ctx)
-		goto out_iput;
+	if (!ctx) {
+		iput(inode);
+		return -ENOSPC;
+	}
 
 	ctx->flags = flags;
 	inode->i_op = &simple_dir_inode_operations;
 	inode->i_fop = &simple_dir_operations;
+
+	mutex_lock(&inode->i_mutex);
+
+	dget(dentry);
+	inc_nlink(dir);
+	inc_nlink(inode);
+
+	d_instantiate(dentry, inode);
+
 	if (flags & SPU_CREATE_NOSCHED)
 		ret = spufs_fill_dir(dentry, spufs_dir_nosched_contents,
 					 mode, ctx);
 	else
 		ret = spufs_fill_dir(dentry, spufs_dir_contents, mode, ctx);
 
-	if (ret)
-		goto out_free_ctx;
-
-	if (spufs_get_sb_info(dir->i_sb)->debug)
+	if (!ret && spufs_get_sb_info(dir->i_sb)->debug)
 		ret = spufs_fill_dir(dentry, spufs_dir_debug_contents,
 				mode, ctx);
 
 	if (ret)
-		goto out_free_ctx;
+		spufs_rmdir(dir, dentry);
 
-	d_instantiate(dentry, inode);
-	dget(dentry);
-	inc_nlink(dir);
-	inc_nlink(dentry->d_inode);
-	goto out;
+	mutex_unlock(&inode->i_mutex);
 
-out_free_ctx:
-	spu_forget(ctx);
-	put_spu_context(ctx);
-out_iput:
-	iput(inode);
-out:
 	return ret;
 }
 
-static int spufs_context_open(struct dentry *dentry, struct vfsmount *mnt)
+static int spufs_context_open(struct path *path)
 {
 	int ret;
 	struct file *filp;
 
 	ret = get_unused_fd();
-	if (ret < 0) {
-		dput(dentry);
-		mntput(mnt);
-		goto out;
-	}
+	if (ret < 0)
+		return ret;
 
-	filp = dentry_open(dentry, mnt, O_RDONLY, current_cred());
+	filp = dentry_open(path, O_RDONLY, current_cred());
 	if (IS_ERR(filp)) {
 		put_unused_fd(ret);
-		ret = PTR_ERR(filp);
-		goto out;
+		return PTR_ERR(filp);
 	}
 
 	filp->f_op = &spufs_context_fops;
 	fd_install(ret, filp);
-out:
 	return ret;
 }
 
@@ -373,7 +347,7 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang,
 			return ERR_PTR(-EINVAL);
 
 		neighbor = get_spu_context(
-				SPUFS_I(filp->f_dentry->d_inode)->i_ctx);
+				SPUFS_I(file_inode(filp))->i_ctx);
 
 		if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) &&
 		    !list_is_last(&neighbor->aff_list, &gang->aff_list_head) &&
@@ -453,29 +427,26 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 	int affinity;
 	struct spu_gang *gang;
 	struct spu_context *neighbor;
+	struct path path = {.mnt = mnt, .dentry = dentry};
 
-	ret = -EPERM;
 	if ((flags & SPU_CREATE_NOSCHED) &&
 	    !capable(CAP_SYS_NICE))
-		goto out_unlock;
+		return -EPERM;
 
-	ret = -EINVAL;
 	if ((flags & (SPU_CREATE_NOSCHED | SPU_CREATE_ISOLATE))
 	    == SPU_CREATE_ISOLATE)
-		goto out_unlock;
+		return -EINVAL;
 
-	ret = -ENODEV;
 	if ((flags & SPU_CREATE_ISOLATE) && !isolated_loader)
-		goto out_unlock;
+		return -ENODEV;
 
 	gang = NULL;
 	neighbor = NULL;
 	affinity = flags & (SPU_CREATE_AFFINITY_MEM | SPU_CREATE_AFFINITY_SPU);
 	if (affinity) {
 		gang = SPUFS_I(inode)->i_gang;
-		ret = -EINVAL;
 		if (!gang)
-			goto out_unlock;
+			return -EINVAL;
 		mutex_lock(&gang->aff_mutex);
 		neighbor = spufs_assert_affinity(flags, gang, aff_filp);
 		if (IS_ERR(neighbor)) {
@@ -495,27 +466,13 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 			put_spu_context(neighbor);
 	}
 
-	/*
-	 * get references for dget and mntget, will be released
-	 * in error path of *_open().
-	 */
-	ret = spufs_context_open(dget(dentry), mntget(mnt));
-	if (ret < 0) {
+	ret = spufs_context_open(&path);
+	if (ret < 0)
 		WARN_ON(spufs_rmdir(inode, dentry));
-		if (affinity)
-			mutex_unlock(&gang->aff_mutex);
-		mutex_unlock(&inode->i_mutex);
-		spu_forget(SPUFS_I(dentry->d_inode)->i_ctx);
-		goto out;
-	}
 
 out_aff_unlock:
 	if (affinity)
 		mutex_unlock(&gang->aff_mutex);
-out_unlock:
-	mutex_unlock(&inode->i_mutex);
-out:
-	dput(dentry);
 	return ret;
 }
 
@@ -556,28 +513,27 @@ out:
 	return ret;
 }
 
-static int spufs_gang_open(struct dentry *dentry, struct vfsmount *mnt)
+static int spufs_gang_open(struct path *path)
 {
 	int ret;
 	struct file *filp;
 
 	ret = get_unused_fd();
-	if (ret < 0) {
-		dput(dentry);
-		mntput(mnt);
-		goto out;
-	}
+	if (ret < 0)
+		return ret;
 
-	filp = dentry_open(dentry, mnt, O_RDONLY, current_cred());
+	/*
+	 * get references for dget and mntget, will be released
+	 * in error path of *_open().
+	 */
+	filp = dentry_open(path, O_RDONLY, current_cred());
 	if (IS_ERR(filp)) {
 		put_unused_fd(ret);
-		ret = PTR_ERR(filp);
-		goto out;
+		return PTR_ERR(filp);
 	}
 
 	filp->f_op = &simple_dir_operations;
 	fd_install(ret, filp);
-out:
 	return ret;
 }
 
@@ -585,25 +541,17 @@ static int spufs_create_gang(struct inode *inode,
 			struct dentry *dentry,
 			struct vfsmount *mnt, umode_t mode)
 {
+	struct path path = {.mnt = mnt, .dentry = dentry};
 	int ret;
 
 	ret = spufs_mkgang(inode, dentry, mode & S_IRWXUGO);
-	if (ret)
-		goto out;
-
-	/*
-	 * get references for dget and mntget, will be released
-	 * in error path of *_open().
-	 */
-	ret = spufs_gang_open(dget(dentry), mntget(mnt));
-	if (ret < 0) {
-		int err = simple_rmdir(inode, dentry);
-		WARN_ON(err);
+	if (!ret) {
+		ret = spufs_gang_open(&path);
+		if (ret < 0) {
+			int err = simple_rmdir(inode, dentry);
+			WARN_ON(err);
+		}
 	}
-
-out:
-	mutex_unlock(&inode->i_mutex);
-	dput(dentry);
 	return ret;
 }
 
@@ -613,40 +561,32 @@ static struct file_system_type spufs_type;
 long spufs_create(struct path *path, struct dentry *dentry,
 		unsigned int flags, umode_t mode, struct file *filp)
 {
+	struct inode *dir = path->dentry->d_inode;
 	int ret;
 
-	ret = -EINVAL;
 	/* check if we are on spufs */
 	if (path->dentry->d_sb->s_type != &spufs_type)
-		goto out;
+		return -EINVAL;
 
 	/* don't accept undefined flags */
 	if (flags & (~SPU_CREATE_FLAG_ALL))
-		goto out;
+		return -EINVAL;
 
 	/* only threads can be underneath a gang */
-	if (path->dentry != path->dentry->d_sb->s_root) {
-		if ((flags & SPU_CREATE_GANG) ||
-		    !SPUFS_I(path->dentry->d_inode)->i_gang)
-			goto out;
-	}
+	if (path->dentry != path->dentry->d_sb->s_root)
+		if ((flags & SPU_CREATE_GANG) || !SPUFS_I(dir)->i_gang)
+			return -EINVAL;
 
 	mode &= ~current_umask();
 
 	if (flags & SPU_CREATE_GANG)
-		ret = spufs_create_gang(path->dentry->d_inode,
-					 dentry, path->mnt, mode);
+		ret = spufs_create_gang(dir, dentry, path->mnt, mode);
 	else
-		ret = spufs_create_context(path->dentry->d_inode,
-					    dentry, path->mnt, flags, mode,
+		ret = spufs_create_context(dir, dentry, path->mnt, flags, mode,
 					    filp);
 	if (ret >= 0)
-		fsnotify_mkdir(path->dentry->d_inode, dentry);
-	return ret;
+		fsnotify_mkdir(dir, dentry);
 
-out:
-	mutex_unlock(&path->dentry->d_inode->i_mutex);
-	dput(dentry);
 	return ret;
 }
 
@@ -680,12 +620,16 @@ spufs_parse_options(struct super_block *sb, char *options, struct inode *root)
 		case Opt_uid:
 			if (match_int(&args[0], &option))
 				return 0;
-			root->i_uid = option;
+			root->i_uid = make_kuid(current_user_ns(), option);
+			if (!uid_valid(root->i_uid))
+				return 0;
 			break;
 		case Opt_gid:
 			if (match_int(&args[0], &option))
 				return 0;
-			root->i_gid = option;
+			root->i_gid = make_kgid(current_user_ns(), option);
+			if (!gid_valid(root->i_gid))
+				return 0;
 			break;
 		case Opt_mode:
 			if (match_octal(&args[0], &option))
@@ -810,6 +754,7 @@ static struct file_system_type spufs_type = {
 	.mount = spufs_mount,
 	.kill_sb = kill_litter_super,
 };
+MODULE_ALIAS_FS("spufs");
 
 static int __init spufs_init(void)
 {
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 965d381abd7..4a0a64fe25d 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -24,6 +24,7 @@
 
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/rt.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
@@ -82,7 +83,6 @@ static struct timer_list spuloadavg_timer;
 #define MIN_SPU_TIMESLICE	max(5 * HZ / (1000 * SPUSCHED_TICK), 1)
 #define DEF_SPU_TIMESLICE	(100 * HZ / (1000 * SPUSCHED_TICK))
 
-#define MAX_USER_PRIO		(MAX_PRIO - MAX_RT_PRIO)
 #define SCALE_PRIO(x, prio) \
 	max(x * (MAX_PRIO - prio) / (MAX_USER_PRIO / 2), MIN_SPU_TIMESLICE)
 
@@ -1094,7 +1094,7 @@ static int show_spu_loadavg(struct seq_file *s, void *private)
 		LOAD_INT(c), LOAD_FRAC(c),
 		count_active_contexts(),
 		atomic_read(&nr_spu_contexts),
-		current->nsproxy->pid_ns->last_pid);
+		task_active_pid_ns(current)->last_pid);
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 67852ade4c0..bcfd6f063ef 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -35,7 +35,6 @@
 #define SPUFS_PS_MAP_SIZE	0x20000
 #define SPUFS_MFC_MAP_SIZE	0x1000
 #define SPUFS_CNTL_MAP_SIZE	0x1000
-#define SPUFS_CNTL_MAP_SIZE	0x1000
 #define SPUFS_SIGNAL_MAP_SIZE	PAGE_SIZE
 #define SPUFS_MSS_MAP_SIZE	0x1000
 
@@ -247,12 +246,13 @@ extern const struct spufs_tree_descr spufs_dir_debug_contents[];
 
 /* system call implementation */
 extern struct spufs_calls spufs_calls;
+struct coredump_params;
 long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status);
 long spufs_create(struct path *nd, struct dentry *dentry, unsigned int flags,
 			umode_t mode, struct file *filp);
 /* ELF coredump callbacks for writing SPU ELF notes */
 extern int spufs_coredump_extra_notes_size(void);
-extern int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset);
+extern int spufs_coredump_extra_notes_write(struct coredump_params *cprm);
 
 extern const struct file_operations spufs_context_fops;
 
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 5665dcc382c..a87200a535f 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -47,7 +47,7 @@ static long do_spu_run(struct file *filp,
 	if (filp->f_op != &spufs_context_fops)
 		goto out;
 
-	i = SPUFS_I(filp->f_path.dentry->d_inode);
+	i = SPUFS_I(file_inode(filp));
 	ret = spufs_run_spu(i->i_ctx, &npc, &status);
 
 	if (put_user(npc, unpc))
@@ -66,11 +66,11 @@ static long do_spu_create(const char __user *pathname, unsigned int flags,
 	struct dentry *dentry;
 	int ret;
 
-	dentry = user_path_create(AT_FDCWD, pathname, &path, 1);
+	dentry = user_path_create(AT_FDCWD, pathname, &path, LOOKUP_DIRECTORY);
 	ret = PTR_ERR(dentry);
 	if (!IS_ERR(dentry)) {
 		ret = spufs_create(&path, dentry, flags, mode, neighbor);
-		path_put(&path);
+		done_path_create(&path, dentry);
 	}
 
 	return ret;
@@ -79,8 +79,10 @@ static long do_spu_create(const char __user *pathname, unsigned int flags,
 struct spufs_calls spufs_calls = {
 	.create_thread = do_spu_create,
 	.spu_run = do_spu_run,
-	.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
-	.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
 	.notify_spus_active = do_notify_spus_active,
 	.owner = THIS_MODULE,
+#ifdef CONFIG_COREDUMP
+	.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
+	.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
+#endif
 };