fs: convert __generic_file_fsync to use errseq_t based reporting
Many simple, block-based filesystems use generic_file_fsync as their
fsync operation. Some others (ext* and fat) also call this function
to handle syncing out data.
Switch this code over to use errseq_t based error reporting so that
all of these filesystems get reliable error reporting via fsync,
fdatasync and msync.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
diff --git a/fs/libfs.c b/fs/libfs.c
index 1b76f29..3aabe55 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -974,7 +974,7 @@
int err;
int ret;
- err = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ err = file_write_and_wait_range(file, start, end);
if (err)
return err;
@@ -991,9 +991,11 @@
out:
inode_unlock(inode);
- /* must call this unconditionally as it clears AS_* error flags */
- err = filemap_check_errors(inode->i_mapping);
- return ret ? ret : err;
+ /* check and advance again to catch errors after syncing out buffers */
+ err = file_check_and_advance_wb_err(file);
+ if (ret == 0)
+ ret = err;
+ return ret;
}
EXPORT_SYMBOL(__generic_file_fsync);