JFIF$        dd7 

Viewing File: /usr/src/kernels/5.14.0-570.32.1.el9_6.x86_64/include/linux/fault-inject.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_FAULT_INJECT_H
#define _LINUX_FAULT_INJECT_H

#include <linux/err.h>
#include <linux/types.h>

struct dentry;
struct kmem_cache;

#ifdef CONFIG_FAULT_INJECTION

#include <linux/atomic.h>
#include <linux/configfs.h>
#include <linux/ratelimit.h>

/*
 * For explanation of the elements of this struct, see
 * Documentation/fault-injection/fault-injection.rst
 */
struct fault_attr {
	unsigned long probability;
	unsigned long interval;
	atomic_t times;
	atomic_t space;
	unsigned long verbose;
	bool task_filter;
	unsigned long stacktrace_depth;
	unsigned long require_start;
	unsigned long require_end;
	unsigned long reject_start;
	unsigned long reject_end;

	unsigned long count;
	struct ratelimit_state ratelimit_state;
	struct dentry *dname;
};

enum fault_flags {
	FAULT_NOWARN =	1 << 0,
};

#define FAULT_ATTR_INITIALIZER {					\
		.interval = 1,						\
		.times = ATOMIC_INIT(1),				\
		.require_end = ULONG_MAX,				\
		.stacktrace_depth = 32,					\
		.ratelimit_state = RATELIMIT_STATE_INIT_DISABLED,	\
		.verbose = 2,						\
		.dname = NULL,						\
	}

#define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER
int setup_fault_attr(struct fault_attr *attr, char *str);
bool should_fail_ex(struct fault_attr *attr, ssize_t size, int flags);
bool should_fail(struct fault_attr *attr, ssize_t size);

#else /* CONFIG_FAULT_INJECTION */

struct fault_attr {
};

#define DECLARE_FAULT_ATTR(name) struct fault_attr name = {}

static inline int setup_fault_attr(struct fault_attr *attr, char *str)
{
	return 0; /* Note: 0 means error for __setup() handlers! */
}
static inline bool should_fail_ex(struct fault_attr *attr, ssize_t size, int flags)
{
	return false;
}
static inline bool should_fail(struct fault_attr *attr, ssize_t size)
{
	return false;
}

#endif /* CONFIG_FAULT_INJECTION */

#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS

struct dentry *fault_create_debugfs_attr(const char *name,
			struct dentry *parent, struct fault_attr *attr);

#else /* CONFIG_FAULT_INJECTION_DEBUG_FS */

static inline struct dentry *fault_create_debugfs_attr(const char *name,
			struct dentry *parent, struct fault_attr *attr)
{
	return ERR_PTR(-ENODEV);
}

#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */

#ifdef CONFIG_FAULT_INJECTION_CONFIGFS

struct fault_config {
	struct fault_attr attr;
	struct config_group group;
};

void fault_config_init(struct fault_config *config, const char *name);

#else /* CONFIG_FAULT_INJECTION_CONFIGFS */

struct fault_config {
};

static inline void fault_config_init(struct fault_config *config,
			const char *name)
{
}

#endif /* CONFIG_FAULT_INJECTION_CONFIGFS */

#ifdef CONFIG_FAIL_PAGE_ALLOC
bool __should_fail_alloc_page(gfp_t gfp_mask, unsigned int order);
#else
static inline bool __should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
{
	return false;
}
#endif /* CONFIG_FAIL_PAGE_ALLOC */

int should_failslab(struct kmem_cache *s, gfp_t gfpflags);
#ifdef CONFIG_FAILSLAB
extern bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags);
#else
static inline bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags)
{
	return false;
}
#endif /* CONFIG_FAILSLAB */

#endif /* _LINUX_FAULT_INJECT_H */
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg