1 files changed, 0 insertions, 64 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 849293c4f418..dd51c68e2b86 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -326,70 +326,6 @@ int filemap_fdatawait_range(struct address_space *mapping, loff_t start,
 EXPORT_SYMBOL(filemap_fdatawait_range);
 
 /**
- * sync_page_range - write and wait on all pages in the passed range
- * @inode:      target inode
- * @mapping:    target address_space
- * @pos:        beginning offset in pages to write
- * @count:      number of bytes to write
- *
- * Write and wait upon all the pages in the passed range.  This is a "data
- * integrity" operation.  It waits upon in-flight writeout before starting and
- * waiting upon new writeout.  If there was an IO error, return it.
- *
- * We need to re-take i_mutex during the generic_osync_inode list walk because
- * it is otherwise livelockable.
- */
-int sync_page_range(struct inode *inode, struct address_space *mapping,
-                        loff_t pos, loff_t count)
-{
-        pgoff_t start = pos >> PAGE_CACHE_SHIFT;
-        pgoff_t end = (pos + count - 1) >> PAGE_CACHE_SHIFT;
-        int ret;
-
-        if (!mapping_cap_writeback_dirty(mapping) || !count)
-                return 0;
-        ret = filemap_fdatawrite_range(mapping, pos, pos + count - 1);
-        if (ret == 0) {
-                mutex_lock(&inode->i_mutex);
-                ret = generic_osync_inode(inode, mapping, OSYNC_METADATA);
-                mutex_unlock(&inode->i_mutex);
-        }
-        if (ret == 0)
-                ret = wait_on_page_writeback_range(mapping, start, end);
-        return ret;
-}
-EXPORT_SYMBOL(sync_page_range);
-
-/**
- * sync_page_range_nolock - write & wait on all pages in the passed range without locking
- * @inode:      target inode
- * @mapping:    target address_space
- * @pos:        beginning offset in pages to write
- * @count:      number of bytes to write
- *
- * Note: Holding i_mutex across sync_page_range_nolock() is not a good idea
- * as it forces O_SYNC writers to different parts of the same file
- * to be serialised right until io completion.
- */
-int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
-                           loff_t pos, loff_t count)
-{
-        pgoff_t start = pos >> PAGE_CACHE_SHIFT;
-        pgoff_t end = (pos + count - 1) >> PAGE_CACHE_SHIFT;
-        int ret;
-
-        if (!mapping_cap_writeback_dirty(mapping) || !count)
-                return 0;
-        ret = filemap_fdatawrite_range(mapping, pos, pos + count - 1);
-        if (ret == 0)
-                ret = generic_osync_inode(inode, mapping, OSYNC_METADATA);
-        if (ret == 0)
-                ret = wait_on_page_writeback_range(mapping, start, end);
-        return ret;
-}
-EXPORT_SYMBOL(sync_page_range_nolock);
-
-/**
  * filemap_fdatawait - wait for all under-writeback pages to complete
  * @mapping: address space structure to wait for
  *