diff options
| author | Matthew Sakai <msakai@redhat.com> | 2023-11-17 05:12:14 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2024-02-20 21:43:15 +0300 |
| commit | 29a811959c72b60601842b5c61a66d677ecbcc92 (patch) | |
| tree | 5a19376dc718c807e1cd94f4cbf552adc7296f93 /drivers/md/dm-vdo/dump.h | |
| parent | 92f8d7a94fe743831728943aa8988ddf1dddac22 (diff) | |
| download | linux-29a811959c72b60601842b5c61a66d677ecbcc92.tar.xz | |
dm vdo: add debugging support
Add support for dumping detailed vdo state to the kernel log via a dmsetup
message. The dump code is not thread-safe and is generally intended for use
only when the vdo is hung.
Co-developed-by: J. corwin Coburn <corwin@hurlbutnet.net>
Signed-off-by: J. corwin Coburn <corwin@hurlbutnet.net>
Co-developed-by: Michael Sclafani <dm-devel@lists.linux.dev>
Signed-off-by: Michael Sclafani <dm-devel@lists.linux.dev>
Co-developed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Co-developed-by: Bruce Johnston <bjohnsto@redhat.com>
Signed-off-by: Bruce Johnston <bjohnsto@redhat.com>
Co-developed-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'drivers/md/dm-vdo/dump.h')
| -rw-r--r-- | drivers/md/dm-vdo/dump.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/md/dm-vdo/dump.h b/drivers/md/dm-vdo/dump.h new file mode 100644 index 000000000000..ad47c70cca78 --- /dev/null +++ b/drivers/md/dm-vdo/dump.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2023 Red Hat + */ + +#ifndef VDO_DUMP_H +#define VDO_DUMP_H + +#include "types.h" + +int vdo_dump(struct vdo *vdo, unsigned int argc, char *const *argv, const char *why); + +void vdo_dump_all(struct vdo *vdo, const char *why); + +void dump_data_vio(void *data); + +#endif /* VDO_DUMP_H */ |