[PATCH 0/7] Configurable error behavior [V3]

Carlos Maiolino
2016-05-04T15:43:32Z

This is the new revision of this patchset, according to last comments.

This patchset is aimed to implement a configurable error behavior in XFS, and
most of the design has been done by Dave, so, that's why I kept his signed-off
in the patches.

This new revision has the detailed changelog written on each patch, but the
major changes are:

- Detailed changelog by-patch and description fixed to become
(hopefuly) more clear
- kept fail_at_unmount as a sysfs attribute

Regarding fail_at_unmount, I left it almost exactly as Dave's design, giving his
comments on the last revision, although, I still think there is no need to keep
it as a per-error granularity, so, I was wondering if a single, global option in
/sys/fs/xfs/<dev>/error/fail_at_unmount wouldn't suffice, but, this will require
a new place to store the value inside kernel, instead of keeping it inside
struct xfs_error_cfg, or maybe use the same structure but use it outside of the
m_error_cfg array?

First 6 patches are ready, the fail_at_unmount one, need to be re-worked if we
want it in a less granular way, but until now I don't think we reached any
decision about how it should be implemented.

fs/xfs/xfs_buf.h | 22 ++++
fs/xfs/xfs_buf_item.c | 126 ++++++++++++++--------
fs/xfs/xfs_mount.c | 19 +++-
fs/xfs/xfs_mount.h | 32 ++++++
fs/xfs/xfs_sysfs.c | 283 +++++++++++++++++++++++++++++++++++++++++++++++++-
fs/xfs/xfs_sysfs.h | 3 +
6 files changed, 437 insertions(+), 48 deletions(-)

--
2.4.11