/* SPDX-License-Identifier: GPL-2.0-or-later *//* CacheFiles tracepoints * * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */#undef TRACE_SYSTEM#define TRACE_SYSTEM cachefiles #if !defined(_TRACE_CACHEFILES_H) || defined(TRACE_HEADER_MULTI_READ)#define _TRACE_CACHEFILES_H #include <linux/tracepoint.h> /* * Define enums for tracing information. */#ifndef __CACHEFILES_DECLARE_TRACE_ENUMS_ONCE_ONLY#define __CACHEFILES_DECLARE_TRACE_ENUMS_ONCE_ONLY enum cachefiles_obj_ref_trace {	cachefiles_obj_get_ioreq,	cachefiles_obj_new,	cachefiles_obj_put_alloc_fail,	cachefiles_obj_put_detach,	cachefiles_obj_put_ioreq,	cachefiles_obj_see_clean_commit,	cachefiles_obj_see_clean_delete,	cachefiles_obj_see_clean_drop_tmp,	cachefiles_obj_see_lookup_cookie,	cachefiles_obj_see_lookup_failed,	cachefiles_obj_see_withdraw_cookie,	cachefiles_obj_see_withdrawal,}; enum fscache_why_object_killed {	FSCACHE_OBJECT_IS_STALE,	FSCACHE_OBJECT_IS_WEIRD,	FSCACHE_OBJECT_INVALIDATED,	FSCACHE_OBJECT_NO_SPACE,	FSCACHE_OBJECT_WAS_RETIRED,	FSCACHE_OBJECT_WAS_CULLED,	FSCACHE_VOLUME_IS_WEIRD,}; enum cachefiles_coherency_trace {	cachefiles_coherency_check_aux,	cachefiles_coherency_check_content,	cachefiles_coherency_check_dirty,	cachefiles_coherency_check_len,	cachefiles_coherency_check_objsize,	cachefiles_coherency_check_ok,	cachefiles_coherency_check_type,	cachefiles_coherency_check_xattr,	cachefiles_coherency_set_fail,	cachefiles_coherency_set_ok,	cachefiles_coherency_vol_check_cmp,	cachefiles_coherency_vol_check_ok,	cachefiles_coherency_vol_check_resv,	cachefiles_coherency_vol_check_xattr,	cachefiles_coherency_vol_set_fail,	cachefiles_coherency_vol_set_ok,}; enum cachefiles_trunc_trace {	cachefiles_trunc_dio_adjust,	cachefiles_trunc_expand_tmpfile,	cachefiles_trunc_shrink,}; enum cachefiles_prepare_read_trace {	cachefiles_trace_read_after_eof,	cachefiles_trace_read_found_hole,	cachefiles_trace_read_found_part,	cachefiles_trace_read_have_data,	cachefiles_trace_read_no_data,	cachefiles_trace_read_no_file,	cachefiles_trace_read_seek_error,	cachefiles_trace_read_seek_nxio,}; enum cachefiles_error_trace {	cachefiles_trace_fallocate_error,	cachefiles_trace_getxattr_error,	cachefiles_trace_link_error,	cachefiles_trace_lookup_error,	cachefiles_trace_mkdir_error,	cachefiles_trace_notify_change_error,	cachefiles_trace_open_error,	cachefiles_trace_read_error,	cachefiles_trace_remxattr_error,	cachefiles_trace_rename_error,	cachefiles_trace_seek_error,	cachefiles_trace_setxattr_error,	cachefiles_trace_statfs_error,	cachefiles_trace_tmpfile_error,	cachefiles_trace_trunc_error,	cachefiles_trace_unlink_error,	cachefiles_trace_write_error,}; #endif /* * Define enum -> string mappings for display. */#define cachefiles_obj_kill_traces				\	EM(FSCACHE_OBJECT_IS_STALE,	"stale")		\	EM(FSCACHE_OBJECT_IS_WEIRD,	"weird")		\	EM(FSCACHE_OBJECT_INVALIDATED,	"inval")		\	EM(FSCACHE_OBJECT_NO_SPACE,	"no_space")		\	EM(FSCACHE_OBJECT_WAS_RETIRED,	"was_retired")		\	EM(FSCACHE_OBJECT_WAS_CULLED,	"was_culled")		\	E_(FSCACHE_VOLUME_IS_WEIRD,	"volume_weird") #define cachefiles_obj_ref_traces					\	EM(cachefiles_obj_get_ioreq,		"GET ioreq")		\	EM(cachefiles_obj_new,			"NEW obj")		\	EM(cachefiles_obj_put_alloc_fail,	"PUT alloc_fail")	\	EM(cachefiles_obj_put_detach,		"PUT detach")		\	EM(cachefiles_obj_put_ioreq,		"PUT ioreq")		\	EM(cachefiles_obj_see_clean_commit,	"SEE clean_commit")	\	EM(cachefiles_obj_see_clean_delete,	"SEE clean_delete")	\	EM(cachefiles_obj_see_clean_drop_tmp,	"SEE clean_drop_tmp")	\	EM(cachefiles_obj_see_lookup_cookie,	"SEE lookup_cookie")	\	EM(cachefiles_obj_see_lookup_failed,	"SEE lookup_failed")	\	EM(cachefiles_obj_see_withdraw_cookie,	"SEE withdraw_cookie")	\	E_(cachefiles_obj_see_withdrawal,	"SEE withdrawal") #define cachefiles_coherency_traces					\	EM(cachefiles_coherency_check_aux,	"BAD aux ")		\	EM(cachefiles_coherency_check_content,	"BAD cont")		\	EM(cachefiles_coherency_check_dirty,	"BAD dirt")		\	EM(cachefiles_coherency_check_len,	"BAD len ")		\	EM(cachefiles_coherency_check_objsize,	"BAD osiz")		\	EM(cachefiles_coherency_check_ok,	"OK      ")		\	EM(cachefiles_coherency_check_type,	"BAD type")		\	EM(cachefiles_coherency_check_xattr,	"BAD xatt")		\	EM(cachefiles_coherency_set_fail,	"SET fail")		\	EM(cachefiles_coherency_set_ok,		"SET ok  ")		\	EM(cachefiles_coherency_vol_check_cmp,	"VOL BAD cmp ")		\	EM(cachefiles_coherency_vol_check_ok,	"VOL OK      ")		\	EM(cachefiles_coherency_vol_check_resv,	"VOL BAD resv")	\	EM(cachefiles_coherency_vol_check_xattr,"VOL BAD xatt")		\	EM(cachefiles_coherency_vol_set_fail,	"VOL SET fail")		\	E_(cachefiles_coherency_vol_set_ok,	"VOL SET ok  ") #define cachefiles_trunc_traces						\	EM(cachefiles_trunc_dio_adjust,		"DIOADJ")		\	EM(cachefiles_trunc_expand_tmpfile,	"EXPTMP")		\	E_(cachefiles_trunc_shrink,		"SHRINK") #define cachefiles_prepare_read_traces					\	EM(cachefiles_trace_read_after_eof,	"after-eof ")		\	EM(cachefiles_trace_read_found_hole,	"found-hole")		\	EM(cachefiles_trace_read_found_part,	"found-part")		\	EM(cachefiles_trace_read_have_data,	"have-data ")		\	EM(cachefiles_trace_read_no_data,	"no-data   ")		\	EM(cachefiles_trace_read_no_file,	"no-file   ")		\	EM(cachefiles_trace_read_seek_error,	"seek-error")		\	E_(cachefiles_trace_read_seek_nxio,	"seek-enxio") #define cachefiles_error_traces						\	EM(cachefiles_trace_fallocate_error,	"fallocate")		\	EM(cachefiles_trace_getxattr_error,	"getxattr")		\	EM(cachefiles_trace_link_error,		"link")			\	EM(cachefiles_trace_lookup_error,	"lookup")		\	EM(cachefiles_trace_mkdir_error,	"mkdir")		\	EM(cachefiles_trace_notify_change_error, "notify_change")	\	EM(cachefiles_trace_open_error,		"open")			\	EM(cachefiles_trace_read_error,		"read")			\	EM(cachefiles_trace_remxattr_error,	"remxattr")		\	EM(cachefiles_trace_rename_error,	"rename")		\	EM(cachefiles_trace_seek_error,		"seek")			\	EM(cachefiles_trace_setxattr_error,	"setxattr")		\	EM(cachefiles_trace_statfs_error,	"statfs")		\	EM(cachefiles_trace_tmpfile_error,	"tmpfile")		\	EM(cachefiles_trace_trunc_error,	"trunc")		\	EM(cachefiles_trace_unlink_error,	"unlink")		\	E_(cachefiles_trace_write_error,	"write")  /* * Export enum symbols via userspace. */#undef EM#undef E_#define EM(a, b) TRACE_DEFINE_ENUM(a);#define E_(a, b) TRACE_DEFINE_ENUM(a); cachefiles_obj_kill_traces;cachefiles_obj_ref_traces;cachefiles_coherency_traces;cachefiles_trunc_traces;cachefiles_prepare_read_traces;cachefiles_error_traces; /* * Now redefine the EM() and E_() macros to map the enums to the strings that * will be printed in the output. */#undef EM#undef E_#define EM(a, b)	{ a, b },#define E_(a, b)	{ a, b }  TRACE_EVENT(cachefiles_ref,	    TP_PROTO(unsigned int object_debug_id,		     unsigned int cookie_debug_id,		     int usage,		     enum cachefiles_obj_ref_trace why), 	    TP_ARGS(object_debug_id, cookie_debug_id, usage, why), 	    /* Note that obj may be NULL */	    TP_STRUCT__entry(		    __field(unsigned int,			obj)		    __field(unsigned int,			cookie)		    __field(enum cachefiles_obj_ref_trace,	why)		    __field(int,				usage)			     ), 	    TP_fast_assign(		    __entry->obj	= object_debug_id;		    __entry->cookie	= cookie_debug_id;		    __entry->usage	= usage;		    __entry->why	= why;			   ), 	    TP_printk("c=%08x o=%08x u=%d %s",		      __entry->cookie, __entry->obj, __entry->usage,		      __print_symbolic(__entry->why, cachefiles_obj_ref_traces))	    ); TRACE_EVENT(cachefiles_lookup,	    TP_PROTO(struct cachefiles_object *obj,		     struct dentry *dir,		     struct dentry *de), 	    TP_ARGS(obj, dir, de), 	    TP_STRUCT__entry(		    __field(u64,			dino)		    __field(u64,			ino)		    __field(unsigned int,		obj)		    __field(short,			error)			     ), 	    TP_fast_assign(		    __entry->obj	= obj ? obj->debug_id : 0;		    __entry->dino	= d_backing_inode(dir)->i_ino;		    __entry->ino	= (!IS_ERR(de) && d_backing_inode(de) ?					   d_backing_inode(de)->i_ino : 0);		    __entry->error	= IS_ERR(de) ? PTR_ERR(de) : 0;			   ), 	    TP_printk("o=%08x dB=%llx B=%llx e=%d",		      __entry->obj, __entry->dino, __entry->ino, __entry->error)	    ); TRACE_EVENT(cachefiles_mkdir,	    TP_PROTO(struct dentry *dir, struct dentry *subdir), 	    TP_ARGS(dir, subdir), 	    TP_STRUCT__entry(		    __field(unsigned int,			dir)		    __field(unsigned int,			subdir)			     ), 	    TP_fast_assign(		    __entry->dir	= d_backing_inode(dir)->i_ino;		    __entry->subdir	= d_backing_inode(subdir)->i_ino;			   ), 	    TP_printk("dB=%x sB=%x",		      __entry->dir,		      __entry->subdir)	    ); TRACE_EVENT(cachefiles_tmpfile,	    TP_PROTO(struct cachefiles_object *obj, struct inode *backer), 	    TP_ARGS(obj, backer), 	    TP_STRUCT__entry(		    __field(unsigned int,			obj)		    __field(unsigned int,			backer)			     ), 	    TP_fast_assign(		    __entry->obj	= obj->debug_id;		    __entry->backer	= backer->i_ino;			   ), 	    TP_printk("o=%08x B=%x",		      __entry->obj,		      __entry->backer)	    ); TRACE_EVENT(cachefiles_link,	    TP_PROTO(struct cachefiles_object *obj, struct inode *backer), 	    TP_ARGS(obj, backer), 	    TP_STRUCT__entry(		    __field(unsigned int,			obj)		    __field(unsigned int,			backer)			     ), 	    TP_fast_assign(		    __entry->obj	= obj->debug_id;		    __entry->backer	= backer->i_ino;			   ), 	    TP_printk("o=%08x B=%x",		      __entry->obj,		      __entry->backer)	    ); TRACE_EVENT(cachefiles_unlink,	    TP_PROTO(struct cachefiles_object *obj,		     ino_t ino,		     enum fscache_why_object_killed why), 	    TP_ARGS(obj, ino, why), 	    /* Note that obj may be NULL */	    TP_STRUCT__entry(		    __field(unsigned int,		obj)		    __field(unsigned int,		ino)		    __field(enum fscache_why_object_killed, why)			     ), 	    TP_fast_assign(		    __entry->obj	= obj ? obj->debug_id : UINT_MAX;		    __entry->ino	= ino;		    __entry->why	= why;			   ), 	    TP_printk("o=%08x B=%x w=%s",		      __entry->obj, __entry->ino,		      __print_symbolic(__entry->why, cachefiles_obj_kill_traces))	    ); TRACE_EVENT(cachefiles_rename,	    TP_PROTO(struct cachefiles_object *obj,		     ino_t ino,		     enum fscache_why_object_killed why), 	    TP_ARGS(obj, ino, why), 	    /* Note that obj may be NULL */	    TP_STRUCT__entry(		    __field(unsigned int,		obj)		    __field(unsigned int,		ino)		    __field(enum fscache_why_object_killed, why)			     ), 	    TP_fast_assign(		    __entry->obj	= obj ? obj->debug_id : UINT_MAX;		    __entry->ino	= ino;		    __entry->why	= why;			   ), 	    TP_printk("o=%08x B=%x w=%s",		      __entry->obj, __entry->ino,		      __print_symbolic(__entry->why, cachefiles_obj_kill_traces))	    ); TRACE_EVENT(cachefiles_coherency,	    TP_PROTO(struct cachefiles_object *obj,		     ino_t ino,		     const void *disk_aux,		     enum cachefiles_content content,		     enum cachefiles_coherency_trace why), 	    TP_ARGS(obj, ino, disk_aux, content, why), 	    /* Note that obj may be NULL */	    TP_STRUCT__entry(		    __field(unsigned int,			obj)		    __field(enum cachefiles_coherency_trace,	why)		    __field(enum cachefiles_content,		content)		    __field(u64,				ino)		    __field(u64,				aux)		    __field(u64,				disk_aux)			     ), 	    TP_fast_assign(		    union {			    __be16 s[4];			    __be64 ll;		    } x; 		    __entry->obj	= obj->debug_id;		    __entry->why	= why;		    __entry->content	= content;		    __entry->ino	= ino;		    __entry->aux	= be64_to_cpup((__be64 *)obj->cookie->inline_aux); 		    /* cachefiles_xattr::data is 2-byte aligned but not 8-byte aligned. */		    if (disk_aux) {			    x.s[0] = ((__be16 *)disk_aux)[0];			    x.s[1] = ((__be16 *)disk_aux)[1];			    x.s[2] = ((__be16 *)disk_aux)[2];			    x.s[3] = ((__be16 *)disk_aux)[3];			    __entry->disk_aux = be64_to_cpu(x.ll);		    } else {			    __entry->disk_aux = 0;		    }			   ), 	    TP_printk("o=%08x %s B=%llx c=%u aux=%llx dsk=%llx",		      __entry->obj,		      __print_symbolic(__entry->why, cachefiles_coherency_traces),		      __entry->ino,		      __entry->content,		      __entry->aux,		      __entry->disk_aux)	    ); TRACE_EVENT(cachefiles_vol_coherency,	    TP_PROTO(struct cachefiles_volume *volume,		     ino_t ino,		     enum cachefiles_coherency_trace why), 	    TP_ARGS(volume, ino, why), 	    /* Note that obj may be NULL */	    TP_STRUCT__entry(		    __field(unsigned int,			vol)		    __field(enum cachefiles_coherency_trace,	why)		    __field(u64,				ino)			     ), 	    TP_fast_assign(		    __entry->vol	= volume->vcookie->debug_id;		    __entry->why	= why;		    __entry->ino	= ino;			   ), 	    TP_printk("V=%08x %s B=%llx",		      __entry->vol,		      __print_symbolic(__entry->why, cachefiles_coherency_traces),		      __entry->ino)	    ); TRACE_EVENT(cachefiles_prep_read,	    TP_PROTO(struct cachefiles_object *obj,		     loff_t start,		     size_t len,		     unsigned short flags,		     enum netfs_io_source source,		     enum cachefiles_prepare_read_trace why,		     ino_t cache_inode, ino_t netfs_inode), 	    TP_ARGS(obj, start, len, flags, source, why, cache_inode, netfs_inode), 	    TP_STRUCT__entry(		    __field(unsigned int,		obj)		    __field(unsigned short,		flags)		    __field(enum netfs_io_source,	source)		    __field(enum cachefiles_prepare_read_trace,	why)		    __field(size_t,			len)		    __field(loff_t,			start)		    __field(unsigned int,		netfs_inode)		    __field(unsigned int,		cache_inode)			     ), 	    TP_fast_assign(		    __entry->obj	= obj ? obj->debug_id : 0;		    __entry->flags	= flags;		    __entry->source	= source;		    __entry->why	= why;		    __entry->len	= len;		    __entry->start	= start;		    __entry->netfs_inode = netfs_inode;		    __entry->cache_inode = cache_inode;			   ), 	    TP_printk("o=%08x %s %s f=%02x s=%llx %zx ni=%x B=%x",		      __entry->obj,		      __print_symbolic(__entry->source, netfs_sreq_sources),		      __print_symbolic(__entry->why, cachefiles_prepare_read_traces),		      __entry->flags,		      __entry->start, __entry->len,		      __entry->netfs_inode, __entry->cache_inode)	    ); TRACE_EVENT(cachefiles_read,	    TP_PROTO(struct cachefiles_object *obj,		     struct inode *backer,		     loff_t start,		     size_t len), 	    TP_ARGS(obj, backer, start, len), 	    TP_STRUCT__entry(

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