diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2024-04-16 00:54:57 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-04-16 00:58:57 +0300 |
| commit | 73597e3e42b4a15030e6f93b71b53a04377ea419 (patch) | |
| tree | d55182f3c052cbab543fb488fa4bbdc4b7a47a65 /fs/xfs/scrub/trace.h | |
| parent | e6c9e75fbe792e1fb3bc7e7efce5c6bb015023c5 (diff) | |
| download | linux-73597e3e42b4a15030e6f93b71b53a04377ea419.tar.xz | |
xfs: ensure dentry consistency when the orphanage adopts a file
When the orphanage adopts a file, that file becomes a child of the
orphanage. The dentry cache may have entries for the orphanage
directory and the name we've chosen, so (1) make sure we abort if the
dcache has a positive entry because something's not right; and (2)
invalidate and purge negative dentries if the adoption goes through.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/scrub/trace.h')
| -rw-r--r-- | fs/xfs/scrub/trace.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/fs/xfs/scrub/trace.h b/fs/xfs/scrub/trace.h index 2a4c54f7992a..668da6ff2ca2 100644 --- a/fs/xfs/scrub/trace.h +++ b/fs/xfs/scrub/trace.h @@ -2669,6 +2669,48 @@ TRACE_EVENT(xrep_nlinks_set_record, __entry->children) ); +DECLARE_EVENT_CLASS(xrep_dentry_class, + TP_PROTO(struct xfs_mount *mp, const struct dentry *dentry), + TP_ARGS(mp, dentry), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(unsigned int, flags) + __field(unsigned long, ino) + __field(bool, positive) + __field(unsigned long, parent_ino) + __field(unsigned int, namelen) + __dynamic_array(char, name, dentry->d_name.len) + ), + TP_fast_assign( + __entry->dev = mp->m_super->s_dev; + __entry->flags = dentry->d_flags; + __entry->positive = d_is_positive(dentry); + if (dentry->d_parent && d_inode(dentry->d_parent)) + __entry->parent_ino = d_inode(dentry->d_parent)->i_ino; + else + __entry->parent_ino = -1UL; + __entry->ino = d_inode(dentry) ? d_inode(dentry)->i_ino : 0; + __entry->namelen = dentry->d_name.len; + memcpy(__get_str(name), dentry->d_name.name, dentry->d_name.len); + ), + TP_printk("dev %d:%d flags 0x%x positive? %d parent_ino 0x%lx ino 0x%lx name '%.*s'", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->flags, + __entry->positive, + __entry->parent_ino, + __entry->ino, + __entry->namelen, + __get_str(name)) +); +#define DEFINE_REPAIR_DENTRY_EVENT(name) \ +DEFINE_EVENT(xrep_dentry_class, name, \ + TP_PROTO(struct xfs_mount *mp, const struct dentry *dentry), \ + TP_ARGS(mp, dentry)) +DEFINE_REPAIR_DENTRY_EVENT(xrep_adoption_check_child); +DEFINE_REPAIR_DENTRY_EVENT(xrep_adoption_check_alias); +DEFINE_REPAIR_DENTRY_EVENT(xrep_adoption_check_dentry); +DEFINE_REPAIR_DENTRY_EVENT(xrep_adoption_invalidate_child); + #endif /* IS_ENABLED(CONFIG_XFS_ONLINE_REPAIR) */ #endif /* _TRACE_XFS_SCRUB_TRACE_H */ |