mirrors/scoutfs
1
0
Fork 0
mirror of https://github.com/versity/scoutfs.git synced 2026-09-03 06:37:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

mmap() trace events.

Browse Source 
We merely trace exit values and position, and ignore length.

Because vm_fault_t is __bitwise, sparse will loudly complain about
a plain cast to u32, so we must __force (on el8). ret will be 512 in
normal cases.

Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Auke Kok
2025-01-23 14:28:40 -05:00
parent 92f704d35a
commit 519b47a53c
2 changed files with 50 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kmod/src/data.c
+4
View File
@@ -2059,6 +2059,8 @@ out:
ret = vmf_error(err);
}
trace_scoutfs_data_page_mkwrite(sb, scoutfs_ino(inode), pos, (__force u32)ret);
return ret;
}
@@ -2122,6 +2124,8 @@ out:
ret = VM_FAULT_RETRY;
}
trace_scoutfs_data_filemap_fault(sb, scoutfs_ino(inode), pos, (__force u32)ret);
return ret;
}
kmod/src/scoutfs_trace.h
+46
View File
@@ -286,6 +286,52 @@ TRACE_EVENT(scoutfs_data_alloc_block_enter,
STE_ENTRY_ARGS(ext))
);
TRACE_EVENT(scoutfs_data_page_mkwrite,
TP_PROTO(struct super_block *sb, __u64 ino, __u64 pos, __u32 ret),
TP_ARGS(sb, ino, pos, ret),
TP_STRUCT__entry(
SCSB_TRACE_FIELDS
__field(__u64, ino)
__field(__u64, pos)
__field(__u32, ret)
),
TP_fast_assign(
SCSB_TRACE_ASSIGN(sb);
__entry->ino = ino;
__entry->pos = pos;
__entry->ret = ret;
),
TP_printk(SCSBF" ino %llu pos %llu ret %u ",
SCSB_TRACE_ARGS, __entry->ino, __entry->pos, __entry->ret)
);
TRACE_EVENT(scoutfs_data_filemap_fault,
TP_PROTO(struct super_block *sb, __u64 ino, __u64 pos, __u32 ret),
TP_ARGS(sb, ino, pos, ret),
TP_STRUCT__entry(
SCSB_TRACE_FIELDS
__field(__u64, ino)
__field(__u64, pos)
__field(__u32, ret)
),
TP_fast_assign(
SCSB_TRACE_ASSIGN(sb);
__entry->ino = ino;
__entry->pos = pos;
__entry->ret = ret;
),
TP_printk(SCSBF" ino %llu pos %llu ret %u ",
SCSB_TRACE_ARGS, __entry->ino, __entry->pos, __entry->ret)
);
DECLARE_EVENT_CLASS(scoutfs_data_file_extent_class,
TP_PROTO(struct super_block *sb, __u64 ino, struct scoutfs_extent *ext),