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-rw-r--r--fs/ext4/ext4.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 17cc2dc13174..2348be3d66b7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3344,6 +3344,19 @@ static inline void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end)
extern const struct iomap_ops ext4_iomap_ops;
+static inline int ext4_buffer_uptodate(struct buffer_head *bh)
+{
+ /*
+ * If the buffer has the write error flag, we have failed
+ * to write out data in the block. In this case, we don't
+ * have to read the block because we may read the old data
+ * successfully.
+ */
+ if (!buffer_uptodate(bh) && buffer_write_io_error(bh))
+ set_buffer_uptodate(bh);
+ return buffer_uptodate(bh);
+}
+
#endif /* __KERNEL__ */
#define EFSBADCRC EBADMSG /* Bad CRC detected */
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