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authorCarlos Maiolino <cmaiolino@redhat.com>2016-05-18 02:58:51 +0200
committerDave Chinner <david@fromorbit.com>2016-05-18 02:58:51 +0200
commit192852be8b5fb14268c2133fe9ce5312e4745963 (patch)
treeb859e946965a129ee024aba4136fa5c79bc56cfe /fs/xfs/xfs_mount.c
parentxfs: buffer ->bi_end_io function requires irq-safe lock (diff)
downloadlinux-192852be8b5fb14268c2133fe9ce5312e4745963.tar.xz
linux-192852be8b5fb14268c2133fe9ce5312e4745963.zip
xfs: configurable error behavior via sysfs
We need to be able to change the way XFS behaviours in error conditions depending on the type of underlying storage. This is necessary for handling non-traditional block devices with extended error cases, such as thin provisioned devices that can return ENOSPC as an IO error. Introduce the basic sysfs infrastructure needed to define and configure error behaviours. This is done to be generic enough to extend to configuring behaviour in other error conditions, such as ENOMEM, which also has different desired behaviours according to machine configuration. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
-rw-r--r--fs/xfs/xfs_mount.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 536a0ee9cd5a..677c3e0da472 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -690,10 +690,15 @@ xfs_mountfs(
if (error)
goto out_remove_sysfs;
- error = xfs_uuid_mount(mp);
+ error = xfs_error_sysfs_init(mp);
if (error)
goto out_del_stats;
+
+ error = xfs_uuid_mount(mp);
+ if (error)
+ goto out_remove_error_sysfs;
+
/*
* Set the minimum read and write sizes
*/
@@ -968,6 +973,8 @@ xfs_mountfs(
xfs_da_unmount(mp);
out_remove_uuid:
xfs_uuid_unmount(mp);
+ out_remove_error_sysfs:
+ xfs_error_sysfs_del(mp);
out_del_stats:
xfs_sysfs_del(&mp->m_stats.xs_kobj);
out_remove_sysfs:
@@ -1056,6 +1063,7 @@ xfs_unmountfs(
#endif
xfs_free_perag(mp);
+ xfs_error_sysfs_del(mp);
xfs_sysfs_del(&mp->m_stats.xs_kobj);
xfs_sysfs_del(&mp->m_kobj);
}