diff options
| -rw-r--r-- | fs/xfs/xfs_mount.c | 10 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.h | 20 | ||||
| -rw-r--r-- | fs/xfs/xfs_sysfs.c | 53 | ||||
| -rw-r--r-- | fs/xfs/xfs_sysfs.h | 3 |
4 files changed, 84 insertions, 2 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); } diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index bac6b3435591..d639795b0310 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -37,6 +37,24 @@ enum { XFS_LOWSP_MAX, }; +/* + * Error Configuration + * + * Error classes define the subsystem the configuration belongs to. + * Error numbers define the errors that are configurable. + */ +enum { + XFS_ERR_CLASS_MAX, +}; +enum { + XFS_ERR_ERRNO_MAX, +}; + +struct xfs_error_cfg { + struct xfs_kobj kobj; + int max_retries; +}; + typedef struct xfs_mount { struct super_block *m_super; xfs_tid_t m_tid; /* next unused tid for fs */ @@ -127,6 +145,8 @@ typedef struct xfs_mount { int64_t m_low_space[XFS_LOWSP_MAX]; /* low free space thresholds */ struct xfs_kobj m_kobj; + struct xfs_kobj m_error_kobj; + struct xfs_error_cfg m_error_cfg[XFS_ERR_CLASS_MAX][XFS_ERR_ERRNO_MAX]; struct xstats m_stats; /* per-fs stats */ struct workqueue_struct *m_buf_workqueue; diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 6ced4f143494..74e394071242 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -17,10 +17,11 @@ */ #include "xfs.h" -#include "xfs_sysfs.h" +#include "xfs_shared.h" #include "xfs_format.h" #include "xfs_log_format.h" #include "xfs_trans_resv.h" +#include "xfs_sysfs.h" #include "xfs_log.h" #include "xfs_log_priv.h" #include "xfs_stats.h" @@ -362,3 +363,53 @@ struct kobj_type xfs_log_ktype = { .sysfs_ops = &xfs_sysfs_ops, .default_attrs = xfs_log_attrs, }; + +/* + * Metadata IO error configuration + * + * The sysfs structure here is: + * ...xfs/<dev>/error/<class>/<errno>/<error_attrs> + * + * where <class> allows us to discriminate between data IO and metadata IO, + * and any other future type of IO (e.g. special inode or directory error + * handling) we care to support. + */ +static struct attribute *xfs_error_attrs[] = { + NULL, +}; + +static inline struct xfs_error_cfg * +to_error_cfg(struct kobject *kobject) +{ + struct xfs_kobj *kobj = to_kobj(kobject); + return container_of(kobj, struct xfs_error_cfg, kobj); +} + +struct kobj_type xfs_error_cfg_ktype = { + .release = xfs_sysfs_release, + .sysfs_ops = &xfs_sysfs_ops, + .default_attrs = xfs_error_attrs, +}; + +struct kobj_type xfs_error_ktype = { + .release = xfs_sysfs_release, +}; + +int +xfs_error_sysfs_init( + struct xfs_mount *mp) +{ + int error; + + /* .../xfs/<dev>/error/ */ + error = xfs_sysfs_init(&mp->m_error_kobj, &xfs_error_ktype, + &mp->m_kobj, "error"); + return error; +} + +void +xfs_error_sysfs_del( + struct xfs_mount *mp) +{ + xfs_sysfs_del(&mp->m_error_kobj); +} diff --git a/fs/xfs/xfs_sysfs.h b/fs/xfs/xfs_sysfs.h index be692e59938d..d04637181ef2 100644 --- a/fs/xfs/xfs_sysfs.h +++ b/fs/xfs/xfs_sysfs.h @@ -58,4 +58,7 @@ xfs_sysfs_del( wait_for_completion(&kobj->complete); } +int xfs_error_sysfs_init(struct xfs_mount *mp); +void xfs_error_sysfs_del(struct xfs_mount *mp); + #endif /* __XFS_SYSFS_H__ */ |