LU-12561 ldiskfs: Remove unused 2.6.x patches

[fs/lustre-release.git] / ldiskfs / kernel_patches / patches / rhel6.3 / ext4-map_inode_page-2.6.18.patch

diff --git a/ldiskfs/kernel_patches/patches/rhel6.3/ext4-map_inode_page-2.6.18.patch b/ldiskfs/kernel_patches/patches/rhel6.3/ext4-map_inode_page-2.6.18.patch
deleted file mode 100644 (file)
index 22e67c0..0000000
--- a/ldiskfs/kernel_patches/patches/rhel6.3/ext4-map_inode_page-2.6.18.patch
+++ /dev/null
@@ -1,78 +0,0 @@
-diff -ur a/fs/ext4/ext4.h b/fs/ext4/ext4.h
---- a/fs/ext4/ext4.h   2013-03-14 12:04:44.105541822 -0400
-+++ b/fs/ext4/ext4.h   2013-03-14 12:09:14.264489405 -0400
-@@ -1661,6 +1661,8 @@
- extern int ext4_block_truncate_page(handle_t *handle,
-               struct address_space *mapping, loff_t from);
- extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
-+extern int ext4_map_inode_page(struct inode *inode, struct page *page,
-+                              sector_t *blocks, int create);
- extern qsize_t *ext4_get_reserved_space(struct inode *inode);
- extern int flush_aio_dio_completed_IO(struct inode *inode);
- extern void ext4_da_update_reserve_space(struct inode *inode,
-diff -ur a/fs/ext4/inode.c b/fs/ext4/inode.c
---- a/fs/ext4/inode.c  2013-03-14 12:04:44.103541330 -0400
-+++ b/fs/ext4/inode.c  2013-03-14 12:11:16.526353498 -0400
-@@ -6131,3 +6131,62 @@
- out:
-         return ret;
- }
-+
-+int ext4_map_inode_page(struct inode *inode, struct page *page,
-+                      sector_t *blocks, int create)
-+{
-+      unsigned int blocksize, blocks_per_page;
-+      unsigned long iblock;
-+      struct buffer_head dummy;
-+      void *handle;
-+      int i, rc = 0, failed = 0, needed_blocks;
-+
-+      blocksize = inode->i_sb->s_blocksize;
-+      blocks_per_page = PAGE_SIZE >> inode->i_sb->s_blocksize_bits;
-+      iblock = page->index * blocks_per_page;
-+
-+      for (i = 0; i < blocks_per_page; i++, iblock++) {
-+              blocks[i] = ext4_bmap(inode->i_mapping, iblock);
-+              if (blocks[i] == 0) {
-+                      failed++;
-+              }
-+      }
-+
-+      if (failed == 0 || create == 0)
-+              return 0;
-+
-+      needed_blocks = ext4_writepage_trans_blocks(inode);
-+      handle = ext4_journal_start(inode, needed_blocks);
-+      if (IS_ERR(handle))
-+              return PTR_ERR(handle);
-+
-+      iblock = page->index * blocks_per_page;
-+      for (i = 0; i < blocks_per_page; i++, iblock++) {
-+              if (blocks[i] != 0)
-+                      continue;
-+
-+              rc = ext4_ind_get_blocks(handle, inode, iblock, 1, &dummy,
-+                                       EXT4_GET_BLOCKS_CREATE);
-+              if (rc < 0) {
-+                      printk(KERN_INFO "ext4_map_inode_page: error reading "
-+                                      "block %ld\n", iblock);
-+                      goto out;
-+              } else {
-+                      if (rc > 1)
-+                              WARN_ON(1);
-+                      rc = 0;
-+              }
-+              /* Unmap any metadata buffers from the block mapping, to avoid
-+               * data corruption due to direct-write from Lustre being
-+               * clobbered by a later flush of the blockdev metadata buffer.*/
-+              if (buffer_new(&dummy))
-+                      unmap_underlying_metadata(dummy.b_bdev,
-+                                      dummy.b_blocknr);
-+              blocks[i] = dummy.b_blocknr;
-+      }
-+
-+out:
-+      ext4_journal_stop(handle);
-+      return rc;
-+}
-+EXPORT_SYMBOL(ext4_map_inode_page);