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[RFC,v3,3/9] fs: Introduce ->corrupted_range() for superblock

Message ID 20201215121414.253660-4-ruansy.fnst@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show
Series fsdax: introduce fs query to support reflink | expand

Commit Message

Ruan Shiyang Dec. 15, 2020, 12:14 p.m. UTC
Memory failure occurs in fsdax mode will finally be handled in
filesystem.  We introduce this interface to find out files or metadata
affected by the corrupted range, and try to recover the corrupted data
if possiable.

Signed-off-by: Shiyang Ruan <ruansy.fnst@cn.fujitsu.com>
 include/linux/fs.h | 2 ++
 1 file changed, 2 insertions(+)
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diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8667d0cdc71e..282e2139b23e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1965,6 +1965,8 @@  struct super_operations {
 				  struct shrink_control *);
 	long (*free_cached_objects)(struct super_block *,
 				    struct shrink_control *);
+	int (*corrupted_range)(struct super_block *sb, struct block_device *bdev,
+			       loff_t offset, size_t len, void *data);