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-rw-r--r--fs/ext4/ext4.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 41a76e163b9..81014f4ed22 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -114,6 +114,21 @@ struct ext4_allocation_request {
};
/*
+ * For delayed allocation tracking
+ */
+struct mpage_da_data {
+ struct inode *inode;
+ sector_t b_blocknr; /* start block number of extent */
+ size_t b_size; /* size of extent */
+ unsigned long b_state; /* state of the extent */
+ unsigned long first_page, next_page; /* extent of pages */
+ struct writeback_control *wbc;
+ int io_done;
+ int pages_written;
+ int retval;
+};
+
+/*
* Special inodes numbers
*/
#define EXT4_BAD_INO 1 /* Bad blocks inode */