fs/nfs/nfs4trace.h

Source file repositories/reference/linux-study-clean/fs/nfs/nfs4trace.h

File Facts

System
Linux kernel
Corpus path
fs/nfs/nfs4trace.h
Extension
.h
Size
77637 bytes
Lines
2869
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

if (!IS_ERR_OR_NULL(state)) {
				inode = state->inode;
				__entry->stateid_seq =
					be32_to_cpu(state->stateid.seqid);
				__entry->stateid_hash =
					nfs_stateid_hash(&state->stateid);
				__entry->openstateid_seq =
					be32_to_cpu(state->open_stateid.seqid);
				__entry->openstateid_hash =
					nfs_stateid_hash(&state->open_stateid);
			} else {
				__entry->stateid_seq = 0;
				__entry->stateid_hash = 0;
				__entry->openstateid_seq = 0;
				__entry->openstateid_hash = 0;
			}
			if (inode != NULL) {
				__entry->fileid = NFS_FILEID(inode);
				__entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
			} else {
				__entry->fileid = 0;
				__entry->fhandle = 0;
			}
			__entry->dir = NFS_FILEID(d_inode(ctx->dentry->d_parent));
			__assign_str(name);
		),

		TP_printk(
			"error=%ld (%s) flags=%lu (%s) fmode=%s "
			"fileid=%02x:%02x:%llu fhandle=0x%08x "
			"name=%02x:%02x:%llu/%s stateid=%d:0x%08x "
			"openstateid=%d:0x%08x",
			 -__entry->error,
			 show_nfs4_status(__entry->error),
			 __entry->flags,
			 show_fs_fcntl_open_flags(__entry->flags),
			 show_fs_fmode_flags(__entry->fmode),
			 MAJOR(__entry->dev), MINOR(__entry->dev),
			 (unsigned long long)__entry->fileid,
			 __entry->fhandle,
			 MAJOR(__entry->dev), MINOR(__entry->dev),
			 (unsigned long long)__entry->dir,
			 __get_str(name),
			 __entry->stateid_seq, __entry->stateid_hash,
			 __entry->openstateid_seq, __entry->openstateid_hash
		)
);

#define DEFINE_NFS4_OPEN_EVENT(name) \
	DEFINE_EVENT(nfs4_open_event, name, \
			TP_PROTO( \
				const struct nfs_open_context *ctx, \
				int flags, \
				int error \
			), \
			TP_ARGS(ctx, flags, error))
DEFINE_NFS4_OPEN_EVENT(nfs4_open_reclaim);
DEFINE_NFS4_OPEN_EVENT(nfs4_open_expired);
DEFINE_NFS4_OPEN_EVENT(nfs4_open_file);

TRACE_EVENT(nfs4_cached_open,
		TP_PROTO(
			const struct nfs4_state *state
		),
		TP_ARGS(state),
		TP_STRUCT__entry(
			__field(dev_t, dev)
			__field(u32, fhandle)
			__field(u64, fileid)
			__field(unsigned int, fmode)
			__field(int, stateid_seq)
			__field(u32, stateid_hash)
		),

		TP_fast_assign(
			const struct inode *inode = state->inode;

			__entry->dev = inode->i_sb->s_dev;
			__entry->fileid = NFS_FILEID(inode);
			__entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
			__entry->fmode = (__force unsigned int)state->state;
			__entry->stateid_seq =
				be32_to_cpu(state->stateid.seqid);
			__entry->stateid_hash =
				nfs_stateid_hash(&state->stateid);
		),

		TP_printk(
			"fmode=%s fileid=%02x:%02x:%llu "
			"fhandle=0x%08x stateid=%d:0x%08x",

Annotation

Implementation Notes