fs/nfs/nfstrace.h

/*
 * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nfs

#if !defined(_TRACE_NFS_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_NFS_H

#include <linux/tracepoint.h>

#define nfs_show_file_type(ftype) \
	__print_symbolic(ftype, \
			{ DT_UNKNOWN, "UNKNOWN" }, \
			{ DT_FIFO, "FIFO" }, \
			{ DT_CHR, "CHR" }, \
			{ DT_DIR, "DIR" }, \
			{ DT_BLK, "BLK" }, \
			{ DT_REG, "REG" }, \
			{ DT_LNK, "LNK" }, \
			{ DT_SOCK, "SOCK" }, \
			{ DT_WHT, "WHT" })

#define nfs_show_cache_validity(v) \
	__print_flags(v, "|", \
			{ NFS_INO_INVALID_ATTR, "INVALID_ATTR" }, \
			{ NFS_INO_INVALID_DATA, "INVALID_DATA" }, \
			{ NFS_INO_INVALID_ATIME, "INVALID_ATIME" }, \
			{ NFS_INO_INVALID_ACCESS, "INVALID_ACCESS" }, \
			{ NFS_INO_INVALID_ACL, "INVALID_ACL" }, \
			{ NFS_INO_REVAL_PAGECACHE, "REVAL_PAGECACHE" }, \
			{ NFS_INO_REVAL_FORCED, "REVAL_FORCED" }, \
			{ NFS_INO_INVALID_LABEL, "INVALID_LABEL" })

#define nfs_show_nfsi_flags(v) \
	__print_flags(v, "|", \
			{ 1 << NFS_INO_ADVISE_RDPLUS, "ADVISE_RDPLUS" }, \
			{ 1 << NFS_INO_STALE, "STALE" }, \
			{ 1 << NFS_INO_FLUSHING, "FLUSHING" }, \
			{ 1 << NFS_INO_FSCACHE, "FSCACHE" }, \
			{ 1 << NFS_INO_COMMIT, "COMMIT" }, \
			{ 1 << NFS_INO_LAYOUTCOMMIT, "NEED_LAYOUTCOMMIT" }, \
			{ 1 << NFS_INO_LAYOUTCOMMITTING, "LAYOUTCOMMIT" })

DECLARE_EVENT_CLASS(nfs_inode_event,
		TP_PROTO(
			const struct inode *inode
		),

		TP_ARGS(inode),

		TP_STRUCT__entry(
			__field(dev_t, dev)
			__field(u32, fhandle)
			__field(u64, fileid)
			__field(u64, version)
		),

		TP_fast_assign(
			const struct nfs_inode *nfsi = NFS_I(inode);
			__entry->dev = inode->i_sb->s_dev;
			__entry->fileid = nfsi->fileid;
			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
			__entry->version = inode->i_version;
		),

		TP_printk(
			"fileid=%02x:%02x:%llu fhandle=0x%08x version=%llu ",
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->fileid,
			__entry->fhandle,
			(unsigned long long)__entry->version
		)
);

DECLARE_EVENT_CLASS(nfs_inode_event_done,
		TP_PROTO(
			const struct inode *inode,
			int error
		),

		TP_ARGS(inode, error),

		TP_STRUCT__entry(
			__field(int, error)
			__field(dev_t, dev)
			__field(u32, fhandle)
			__field(unsigned char, type)
			__field(u64, fileid)
			__field(u64, version)
			__field(loff_t, size)
			__field(unsigned long, nfsi_flags)
			__field(unsigned long, cache_validity)
		),

		TP_fast_assign(
			const struct nfs_inode *nfsi = NFS_I(inode);
			__entry->error = error;
			__entry->dev = inode->i_sb->s_dev;
			__entry->fileid = nfsi->fileid;
			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
			__entry->type = nfs_umode_to_dtype(inode->i_mode);
			__entry->version = inode->i_version;
			__entry->size = i_size_read(inode);
			__entry->nfsi_flags = nfsi->flags;
			__entry->cache_validity = nfsi->cache_validity;
		),

		TP_printk(
			"error=%d fileid=%02x:%02x:%llu fhandle=0x%08x "
			"type=%u (%s) version=%llu size=%lld "
			"cache_validity=%lu (%s) nfs_flags=%ld (%s)",
			__entry->error,
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->fileid,
			__entry->fhandle,
			__entry->type,
			nfs_show_file_type(__entry->type),
			(unsigned long long)__entry->version,
			(long long)__entry->size,
			__entry->cache_validity,
			nfs_show_cache_validity(__entry->cache_validity),
			__entry->nfsi_flags,
			nfs_show_nfsi_flags(__entry->nfsi_flags)
		)
);

#define DEFINE_NFS_INODE_EVENT(name) \
	DEFINE_EVENT(nfs_inode_event, name, \
			TP_PROTO( \
				const struct inode *inode \
			), \
			TP_ARGS(inode))
#define DEFINE_NFS_INODE_EVENT_DONE(name) \
	DEFINE_EVENT(nfs_inode_event_done, name, \
			TP_PROTO( \
				const struct inode *inode, \
				int error \
			), \
			TP_ARGS(inode, error))
DEFINE_NFS_INODE_EVENT(nfs_refresh_inode_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_refresh_inode_exit);
DEFINE_NFS_INODE_EVENT(nfs_revalidate_inode_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_revalidate_inode_exit);
DEFINE_NFS_INODE_EVENT(nfs_invalidate_mapping_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_invalidate_mapping_exit);
DEFINE_NFS_INODE_EVENT(nfs_getattr_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_getattr_exit);
DEFINE_NFS_INODE_EVENT(nfs_setattr_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_setattr_exit);
DEFINE_NFS_INODE_EVENT(nfs_writeback_page_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_writeback_page_exit);
DEFINE_NFS_INODE_EVENT(nfs_writeback_inode_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_writeback_inode_exit);
DEFINE_NFS_INODE_EVENT(nfs_fsync_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_fsync_exit);
DEFINE_NFS_INODE_EVENT(nfs_access_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_access_exit);

#define show_lookup_flags(flags) \
	__print_flags((unsigned long)flags, "|", \
			{ LOOKUP_AUTOMOUNT, "AUTOMOUNT" }, \
			{ LOOKUP_DIRECTORY, "DIRECTORY" }, \
			{ LOOKUP_OPEN, "OPEN" }, \
			{ LOOKUP_CREATE, "CREATE" }, \
			{ LOOKUP_EXCL, "EXCL" })

DECLARE_EVENT_CLASS(nfs_lookup_event,
		TP_PROTO(
			const struct inode *dir,
			const struct dentry *dentry,
			unsigned int flags
		),

		TP_ARGS(dir, dentry, flags),

		TP_STRUCT__entry(
			__field(unsigned int, flags)
			__field(dev_t, dev)
			__field(u64, dir)
			__string(name, dentry->d_name.name)
		),

		TP_fast_assign(
			__entry->dev = dir->i_sb->s_dev;
			__entry->dir = NFS_FILEID(dir);
			__entry->flags = flags;
			__assign_str(name, dentry->d_name.name);
		),

		TP_printk(
			"flags=%u (%s) name=%02x:%02x:%llu/%s",
			__entry->flags,
			show_lookup_flags(__entry->flags),
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->dir,
			__get_str(name)
		)
);

#define DEFINE_NFS_LOOKUP_EVENT(name) \
	DEFINE_EVENT(nfs_lookup_event, name, \
			TP_PROTO( \
				const struct inode *dir, \
				const struct dentry *dentry, \
				unsigned int flags \
			), \
			TP_ARGS(dir, dentry, flags))

DECLARE_EVENT_CLASS(nfs_lookup_event_done,
		TP_PROTO(
			const struct inode *dir,
			const struct dentry *dentry,
			unsigned int flags,
			int error
		),

		TP_ARGS(dir, dentry, flags, error),

		TP_STRUCT__entry(
			__field(int, error)
			__field(unsigned int, flags)
			__field(dev_t, dev)
			__field(u64, dir)
			__string(name, dentry->d_name.name)
		),

		TP_fast_assign(
			__entry->dev = dir->i_sb->s_dev;
			__entry->dir = NFS_FILEID(dir);
			__entry->error = error;
			__entry->flags = flags;
			__assign_str(name, dentry->d_name.name);
		),

		TP_printk(
			"error=%d flags=%u (%s) name=%02x:%02x:%llu/%s",
			__entry->error,
			__entry->flags,
			show_lookup_flags(__entry->flags),
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->dir,
			__get_str(name)
		)
);

#define DEFINE_NFS_LOOKUP_EVENT_DONE(name) \
	DEFINE_EVENT(nfs_lookup_event_done, name, \
			TP_PROTO( \
				const struct inode *dir, \
				const struct dentry *dentry, \
				unsigned int flags, \
				int error \
			), \
			TP_ARGS(dir, dentry, flags, error))

DEFINE_NFS_LOOKUP_EVENT(nfs_lookup_enter);
DEFINE_NFS_LOOKUP_EVENT_DONE(nfs_lookup_exit);
DEFINE_NFS_LOOKUP_EVENT(nfs_lookup_revalidate_enter);
DEFINE_NFS_LOOKUP_EVENT_DONE(nfs_lookup_revalidate_exit);

#define show_open_flags(flags) \
	__print_flags((unsigned long)flags, "|", \
		{ O_CREAT, "O_CREAT" }, \
		{ O_EXCL, "O_EXCL" }, \
		{ O_TRUNC, "O_TRUNC" }, \
		{ O_APPEND, "O_APPEND" }, \
		{ O_DSYNC, "O_DSYNC" }, \
		{ O_DIRECT, "O_DIRECT" }, \
		{ O_DIRECTORY, "O_DIRECTORY" })

#define show_fmode_flags(mode) \
	__print_flags(mode, "|", \
		{ ((__force unsigned long)FMODE_READ), "READ" }, \
		{ ((__force unsigned long)FMODE_WRITE), "WRITE" }, \
		{ ((__force unsigned long)FMODE_EXEC), "EXEC" })

TRACE_EVENT(nfs_atomic_open_enter,
		TP_PROTO(
			const struct inode *dir,
			const struct nfs_open_context *ctx,
			unsigned int flags
		),

		TP_ARGS(dir, ctx, flags),

		TP_STRUCT__entry(
			__field(unsigned int, flags)
			__field(unsigned int, fmode)
			__field(dev_t, dev)
			__field(u64, dir)
			__string(name, ctx->dentry->d_name.name)
		),

		TP_fast_assign(
			__entry->dev = dir->i_sb->s_dev;
			__entry->dir = NFS_FILEID(dir);
			__entry->flags = flags;
			__entry->fmode = (__force unsigned int)ctx->mode;
			__assign_str(name, ctx->dentry->d_name.name);
		),

		TP_printk(
			"flags=%u (%s) fmode=%s name=%02x:%02x:%llu/%s",
			__entry->flags,
			show_open_flags(__entry->flags),
			show_fmode_flags(__entry->fmode),
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->dir,
			__get_str(name)
		)
);

TRACE_EVENT(nfs_atomic_open_exit,
		TP_PROTO(
			const struct inode *dir,
			const struct nfs_open_context *ctx,
			unsigned int flags,
			int error
		),

		TP_ARGS(dir, ctx, flags, error),

		TP_STRUCT__entry(
			__field(int, error)
			__field(unsigned int, flags)
			__field(unsigned int, fmode)
			__field(dev_t, dev)
			__field(u64, dir)
			__string(name, ctx->dentry->d_name.name)
		),

		TP_fast_assign(
			__entry->error = error;
			__entry->dev = dir->i_sb->s_dev;
			__entry->dir = NFS_FILEID(dir);
			__entry->flags = flags;
			__entry->fmode = (__force unsigned int)ctx->mode;
			__assign_str(name, ctx->dentry->d_name.name);
		),

		TP_printk(
			"error=%d flags=%u (%s) fmode=%s "
			"name=%02x:%02x:%llu/%s",
			__entry->error,
			__entry->flags,
			show_open_flags(__entry->flags),
			show_fmode_flags(__entry->fmode),
			MAJOR(__entry->dev), MINOR(__entry->dev),
			(unsigned long long)__entry->dir,
			__get_str(name)
		)
);

#endif /* _TRACE_NFS_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE nfstrace
/* This part must be outside protection */
#include <trace/define_trace.h>