Staging: rt2860: remove dead BIN_IN_FILE code

[~andy/linux] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index a29b4dcc1bca2e3b8f56252261624e3c1fafacf4..3a6d4fb2a329ceb5795bb18eec19ca71f330832b 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -25,6 +25,7 @@
 #include <linux/uio.h>
 #include <linux/namei.h>
 #include <linux/log2.h>
+#include <linux/kmemleak.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
@@ -175,17 +176,22 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
                                iov, offset, nr_segs, blkdev_get_blocks, NULL);
 }
 
+int __sync_blockdev(struct block_device *bdev, int wait)
+{
+       if (!bdev)
+               return 0;
+       if (!wait)
+               return filemap_flush(bdev->bd_inode->i_mapping);
+       return filemap_write_and_wait(bdev->bd_inode->i_mapping);
+}
+
 /*
  * Write out and wait upon all the dirty data associated with a block
  * device via its mapping.  Does not take the superblock lock.
  */
 int sync_blockdev(struct block_device *bdev)
 {
-       int ret = 0;
-
-       if (bdev)
-               ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
-       return ret;
+       return __sync_blockdev(bdev, 1);
 }
 EXPORT_SYMBOL(sync_blockdev);
 
@@ -198,7 +204,7 @@ int fsync_bdev(struct block_device *bdev)
 {
        struct super_block *sb = get_super(bdev);
        if (sb) {
-               int res = fsync_super(sb);
+               int res = sync_filesystem(sb);
                drop_super(sb);
                return res;
        }
@@ -240,7 +246,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
                sb->s_frozen = SB_FREEZE_WRITE;
                smp_wmb();
 
-               __fsync_super(sb);
+               sync_filesystem(sb);
 
                sb->s_frozen = SB_FREEZE_TRANS;
                smp_wmb();
@@ -331,12 +337,6 @@ static int blkdev_readpage(struct file * file, struct page * page)
        return block_read_full_page(page, blkdev_get_block);
 }
 
-static int blkdev_readpages(struct file *file, struct address_space *mapping,
-                       struct list_head *pages, unsigned nr_pages)
-{
-       return mpage_readpages(mapping, pages, nr_pages, blkdev_get_block);
-}
-
 static int blkdev_write_begin(struct file *file, struct address_space *mapping,
                        loff_t pos, unsigned len, unsigned flags,
                        struct page **pagep, void **fsdata)
@@ -498,6 +498,11 @@ void __init bdev_cache_init(void)
        bd_mnt = kern_mount(&bd_type);
        if (IS_ERR(bd_mnt))
                panic("Cannot create bdev pseudo-fs");
+       /*
+        * This vfsmount structure is only used to obtain the
+        * blockdev_superblock, so tell kmemleak not to report it.
+        */
+       kmemleak_not_leak(bd_mnt);
        blockdev_superblock = bd_mnt->mnt_sb;   /* For writeback */
 }
 
@@ -1405,7 +1410,6 @@ static int blkdev_releasepage(struct page *page, gfp_t wait)
 
 static const struct address_space_operations def_blk_aops = {
        .readpage       = blkdev_readpage,
-       .readpages      = blkdev_readpages,
        .writepage      = blkdev_writepage,
        .sync_page      = block_sync_page,
        .write_begin    = blkdev_write_begin,