This is a very minimal conversion to errseq_t based error tracking
for raw block device access.
Only real change that is strictly required is that we must ensure that
filemap_report_wb_err is unconditionally called after fsync, which is
now done if FS_WB_ERRSEQ is set in fs_flags. That ensures that the
errseq_t in the file is advanced to the latest value in the mapping.
Note that there are internal callers that call sync_blockdev and the
like that are not affected by this. They'll continue to use the
AS_EIO/AS_ENOSPC flags for error reporting like they always have for
now.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/block_dev.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4d62fe771587..4bf865cc99de 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -801,6 +801,7 @@ static struct file_system_type bd_type = {
.name = "bdev",
.mount = bd_mount,
.kill_sb = kill_anon_super,
+ .fs_flags = FS_WB_ERRSEQ,
};
struct super_block *blockdev_superblock __read_mostly;
--
2.13.0
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