diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-12-18 14:32:29 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-12-19 14:02:01 -0800 |
| commit | 85f8dff00a3193fe5659aa4c91adde31723c0d3d (patch) | |
| tree | 30a2b71b5904cacbd4554951a38843b8074f9ff7 /fs/xfs/xfs_trace.h | |
| parent | 7af8150f9935634e3e0f47c14e049ff401c82fb4 (diff) | |
xfs: fix symbolic enum printing in ftrace output
ftrace's __print_symbolic() has a (very poorly documented) requirement
that any enum values used in the symbol to string translation table be
wrapped in a TRACE_DEFINE_ENUM so that the enum value can be encoded in
the ftrace ring buffer. Fix this unsatisfied requirement.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_trace.h')
| -rw-r--r-- | fs/xfs/xfs_trace.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index cabe5c8010b0..deac0b3e64c2 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -640,6 +640,16 @@ DEFINE_INODE_EVENT(xfs_inode_set_cowblocks_tag); DEFINE_INODE_EVENT(xfs_inode_clear_cowblocks_tag); DEFINE_INODE_EVENT(xfs_inode_free_cowblocks_invalid); +/* + * ftrace's __print_symbolic requires that all enum values be wrapped in the + * TRACE_DEFINE_ENUM macro so that the enum value can be encoded in the ftrace + * ring buffer. Somehow this was only worth mentioning in the ftrace sample + * code. + */ +TRACE_DEFINE_ENUM(PE_SIZE_PTE); +TRACE_DEFINE_ENUM(PE_SIZE_PMD); +TRACE_DEFINE_ENUM(PE_SIZE_PUD); + TRACE_EVENT(xfs_filemap_fault, TP_PROTO(struct xfs_inode *ip, enum page_entry_size pe_size, bool write_fault), @@ -1208,6 +1218,12 @@ DEFINE_EVENT(xfs_readpage_class, name, \ DEFINE_READPAGE_EVENT(xfs_vm_readpage); DEFINE_READPAGE_EVENT(xfs_vm_readpages); +TRACE_DEFINE_ENUM(XFS_IO_HOLE); +TRACE_DEFINE_ENUM(XFS_IO_DELALLOC); +TRACE_DEFINE_ENUM(XFS_IO_UNWRITTEN); +TRACE_DEFINE_ENUM(XFS_IO_OVERWRITE); +TRACE_DEFINE_ENUM(XFS_IO_COW); + DECLARE_EVENT_CLASS(xfs_imap_class, TP_PROTO(struct xfs_inode *ip, xfs_off_t offset, ssize_t count, int type, struct xfs_bmbt_irec *irec), @@ -2610,6 +2626,9 @@ DEFINE_AG_ERROR_EVENT(xfs_ag_resv_init_error); #define DEFINE_AG_EXTENT_EVENT(name) DEFINE_DISCARD_EVENT(name) /* ag btree lookup tracepoint class */ +TRACE_DEFINE_ENUM(XFS_LOOKUP_EQi); +TRACE_DEFINE_ENUM(XFS_LOOKUP_LEi); +TRACE_DEFINE_ENUM(XFS_LOOKUP_GEi); #define XFS_AG_BTREE_CMP_FORMAT_STR \ { XFS_LOOKUP_EQ, "eq" }, \ { XFS_LOOKUP_LE, "le" }, \ |