X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Ffadvise.c;h=0df4c899e979ec1101cb629a660fc04b31e1095e;hb=dbcb0f19c877df9026b8c1227758d38bd561e9c4;hp=907c39257ca06aea630915c9a46103518a4d631a;hpb=86579dd06deecfa6ac88d5e84e4d63c397cd6f6d;p=linux-2.6

diff --git a/mm/fadvise.c b/mm/fadvise.c
index 907c39257c..0df4c899e9 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -23,29 +23,6 @@
 /*
  * POSIX_FADV_WILLNEED could set PG_Referenced, and POSIX_FADV_NOREUSE could
  * deactivate the pages and clear PG_Referenced.
- *
- * LINUX_FADV_ASYNC_WRITE: start async writeout of any dirty pages between file
- * offsets `offset' and `offset+len' inclusive.  Any pages which are currently
- * under writeout are skipped, whether or not they are dirty.
- *
- * LINUX_FADV_WRITE_WAIT: wait upon writeout of any dirty pages between file
- * offsets `offset' and `offset+len'.
- *
- * By combining these two operations the application may do several things:
- *
- * LINUX_FADV_ASYNC_WRITE: push some or all of the dirty pages at the disk.
- *
- * LINUX_FADV_WRITE_WAIT, LINUX_FADV_ASYNC_WRITE: push all of the currently
- * dirty pages at the disk.
- *
- * LINUX_FADV_WRITE_WAIT, LINUX_FADV_ASYNC_WRITE, LINUX_FADV_WRITE_WAIT: push
- * all of the currently dirty pages at the disk, wait until they have been
- * written.
- *
- * It should be noted that none of these operations write out the file's
- * metadata.  So unless the application is strictly performing overwrites of
- * already-instantiated disk blocks, there are no guarantees here that the data
- * will be available after a crash.
  */
 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 {
@@ -61,7 +38,7 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 	if (!file)
 		return -EBADF;
 
-	if (S_ISFIFO(file->f_dentry->d_inode->i_mode)) {
+	if (S_ISFIFO(file->f_path.dentry->d_inode->i_mode)) {
 		ret = -ESPIPE;
 		goto out;
 	}
@@ -96,7 +73,6 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 		file->f_ra.ra_pages = bdi->ra_pages * 2;
 		break;
 	case POSIX_FADV_WILLNEED:
-	case POSIX_FADV_NOREUSE:
 		if (!mapping->a_ops->readpage) {
 			ret = -EINVAL;
 			break;
@@ -117,6 +93,8 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 		if (ret > 0)
 			ret = 0;
 		break;
+	case POSIX_FADV_NOREUSE:
+		break;
 	case POSIX_FADV_DONTNEED:
 		if (!bdi_write_congested(mapping->backing_dev_info))
 			filemap_flush(mapping);
@@ -129,15 +107,6 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 			invalidate_mapping_pages(mapping, start_index,
 						end_index);
 		break;
-	case LINUX_FADV_ASYNC_WRITE:
-		ret = __filemap_fdatawrite_range(mapping, offset, endbyte,
-						WB_SYNC_NONE);
-		break;
-	case LINUX_FADV_WRITE_WAIT:
-		ret = wait_on_page_writeback_range(mapping,
-					offset >> PAGE_CACHE_SHIFT,
-					endbyte >> PAGE_CACHE_SHIFT);
-		break;
 	default:
 		ret = -EINVAL;
 	}