X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fsplice.c;h=4ee49e86edde5a2272781b6e49e0371b721ceb33;hb=237c5e8ee2328c31a130d35e32f7a2260c4512aa;hp=6bdcb6107bc3c55b58199537e2eb5537133cd460;hpb=2843483d2eb02ad104edbe8b2429fb6a39d25063;p=linux-2.6-omap-h63xx.git

diff --git a/fs/splice.c b/fs/splice.c
index 6bdcb6107bc..4ee49e86edd 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -254,11 +254,16 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
 	}
 
 	while (page_nr < spd_pages)
-		page_cache_release(spd->pages[page_nr++]);
+		spd->spd_release(spd, page_nr++);
 
 	return ret;
 }
 
+static void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
+{
+	page_cache_release(spd->pages[i]);
+}
+
 static int
 __generic_file_splice_read(struct file *in, loff_t *ppos,
 			   struct pipe_inode_info *pipe, size_t len,
@@ -277,6 +282,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
 		.partial = partial,
 		.flags = flags,
 		.ops = &page_cache_pipe_buf_ops,
+		.spd_release = spd_release_page,
 	};
 
 	index = *ppos >> PAGE_CACHE_SHIFT;
@@ -908,10 +914,6 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
 	if (unlikely(ret < 0))
 		return ret;
 
-	ret = security_file_permission(out, MAY_WRITE);
-	if (unlikely(ret < 0))
-		return ret;
-
 	return out->f_op->splice_write(pipe, out, ppos, len, flags);
 }
 
@@ -934,10 +936,6 @@ static long do_splice_to(struct file *in, loff_t *ppos,
 	if (unlikely(ret < 0))
 		return ret;
 
-	ret = security_file_permission(in, MAY_READ);
-	if (unlikely(ret < 0))
-		return ret;
-
 	return in->f_op->splice_read(in, ppos, pipe, len, flags);
 }
 
@@ -1033,7 +1031,9 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
 			goto out_release;
 	}
 
+done:
 	pipe->nrbufs = pipe->curbuf = 0;
+	file_accessed(in);
 	return bytes;
 
 out_release:
@@ -1049,16 +1049,11 @@ out_release:
 			buf->ops = NULL;
 		}
 	}
-	pipe->nrbufs = pipe->curbuf = 0;
 
-	/*
-	 * If we transferred some data, return the number of bytes:
-	 */
-	if (bytes > 0)
-		return bytes;
-
-	return ret;
+	if (!bytes)
+		bytes = ret;
 
+	goto done;
 }
 EXPORT_SYMBOL(splice_direct_to_actor);
 
@@ -1440,6 +1435,7 @@ static long vmsplice_to_pipe(struct file *file, const struct iovec __user *iov,
 		.partial = partial,
 		.flags = flags,
 		.ops = &user_page_pipe_buf_ops,
+		.spd_release = spd_release_page,
 	};
 
 	pipe = pipe_info(file->f_path.dentry->d_inode);