AI Trajectory

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch only modifies debug logging macros (_enter, _leave, _debug) in fs/netfs/internal.h to support fine-grained debug level bitmask filtering. It constitutes purely decorative logging changes and does not alter executable control flow, data structures, state management, or runtime assertions.",
  "WorthFuzzing": false
}

null

{
  "PatchDiff": "commit 100222e808f18c38e67992e74684f9a8b592f109\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Sun Sep 6 11:29:08 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/fs/netfs/internal.h b/fs/netfs/internal.h\nindex 420ee7b26580f..425c73b7e77b4 100644\n--- a/fs/netfs/internal.h\n+++ b/fs/netfs/internal.h\n@@ -468,6 +468,32 @@ void fscache_create_volume(struct fscache_volume *volume, bool wait);\n #define kleave(FMT, ...) dbgprintk(\"\u003c== %s()\"FMT\"\", __func__, ##__VA_ARGS__)\n #define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)\n \n+#define FSCACHE_DEBUG_CACHE\t0\n+#define FSCACHE_DEBUG_COOKIE\t1\n+#define FSCACHE_DEBUG_OBJECT\t2\n+#define FSCACHE_DEBUG_OPERATION\t3\n+\n+#define FSCACHE_POINT_ENTER\t1\n+#define FSCACHE_POINT_LEAVE\t2\n+#define FSCACHE_POINT_DEBUG\t4\n+\n+#ifndef FSCACHE_DEBUG_LEVEL\n+#define FSCACHE_DEBUG_LEVEL CACHE\n+#endif\n+\n+/*\n+ * Determine whether a particular optional debugging point should be logged.\n+ * Three levels of indirection are needed to expand FSCACHE_DEBUG_LEVEL before\n+ * joining it with its prefix.\n+ */\n+#define ____do_kdebug(LEVEL, POINT) \\\n+\tunlikely(netfs_debug \u0026 \\\n+\t\t (FSCACHE_POINT_##POINT \u003c\u003c (FSCACHE_DEBUG_ ## LEVEL * 3)))\n+#define ___do_kdebug(LEVEL, POINT) \\\n+\t____do_kdebug(LEVEL, POINT)\n+#define __do_kdebug(POINT) \\\n+\t___do_kdebug(FSCACHE_DEBUG_LEVEL, POINT)\n+\n #ifdef __KDEBUG\n #define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)\n #define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)\n@@ -476,19 +502,19 @@ void fscache_create_volume(struct fscache_volume *volume, bool wait);\n #elif defined(CONFIG_NETFS_DEBUG)\n #define _enter(FMT, ...)\t\t\t\\\n do {\t\t\t\t\t\t\\\n-\tif (netfs_debug)\t\t\t\\\n+\tif (__do_kdebug(ENTER))\t\t\t\\\n \t\tkenter(FMT, ##__VA_ARGS__);\t\\\n } while (0)\n \n #define _leave(FMT, ...)\t\t\t\\\n do {\t\t\t\t\t\t\\\n-\tif (netfs_debug)\t\t\t\\\n+\tif (__do_kdebug(LEAVE))\t\t\t\\\n \t\tkleave(FMT, ##__VA_ARGS__);\t\\\n } while (0)\n \n #define _debug(FMT, ...)\t\t\t\\\n do {\t\t\t\t\t\t\\\n-\tif (netfs_debug)\t\t\t\\\n+\tif (__do_kdebug(DEBUG))\t\t\t\\\n \t\tkdebug(FMT, ##__VA_ARGS__);\t\\\n } while (0)\n \n"
}

core

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies debug logging macros (_enter, _leave, _debug) in fs/netfs/internal.h to support fine-grained debug level bitmask filtering. It constitutes purely decorative logging changes and does not alter executable control flow, data structures, state management, or runtime assertions.",
  "WorthFuzzing": false
}

You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit 100222e808f18c38e67992e74684f9a8b592f109
Author: syz-cluster <triage@syzkaller.com>
Date:   Sun Sep 6 11:29:08 2026 +0000

    syz-cluster: applied patch under review

diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h
index 420ee7b26580f..425c73b7e77b4 100644
--- a/fs/netfs/internal.h
+++ b/fs/netfs/internal.h
@@ -468,6 +468,32 @@ void fscache_create_volume(struct fscache_volume *volume, bool wait);
 #define kleave(FMT, ...) dbgprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
 #define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)
 
+#define FSCACHE_DEBUG_CACHE	0
+#define FSCACHE_DEBUG_COOKIE	1
+#define FSCACHE_DEBUG_OBJECT	2
+#define FSCACHE_DEBUG_OPERATION	3
+
+#define FSCACHE_POINT_ENTER	1
+#define FSCACHE_POINT_LEAVE	2
+#define FSCACHE_POINT_DEBUG	4
+
+#ifndef FSCACHE_DEBUG_LEVEL
+#define FSCACHE_DEBUG_LEVEL CACHE
+#endif
+
+/*
+ * Determine whether a particular optional debugging point should be logged.
+ * Three levels of indirection are needed to expand FSCACHE_DEBUG_LEVEL before
+ * joining it with its prefix.
+ */
+#define ____do_kdebug(LEVEL, POINT) \
+	unlikely(netfs_debug & \
+		 (FSCACHE_POINT_##POINT << (FSCACHE_DEBUG_ ## LEVEL * 3)))
+#define ___do_kdebug(LEVEL, POINT) \
+	____do_kdebug(LEVEL, POINT)
+#define __do_kdebug(POINT) \
+	___do_kdebug(FSCACHE_DEBUG_LEVEL, POINT)
+
 #ifdef __KDEBUG
 #define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)
 #define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)
@@ -476,19 +502,19 @@ void fscache_create_volume(struct fscache_volume *volume, bool wait);
 #elif defined(CONFIG_NETFS_DEBUG)
 #define _enter(FMT, ...)			\
 do {						\
-	if (netfs_debug)			\
+	if (__do_kdebug(ENTER))			\
 		kenter(FMT, ##__VA_ARGS__);	\
 } while (0)
 
 #define _leave(FMT, ...)			\
 do {						\
-	if (netfs_debug)			\
+	if (__do_kdebug(LEAVE))			\
 		kleave(FMT, ##__VA_ARGS__);	\
 } while (0)
 
 #define _debug(FMT, ...)			\
 do {						\
-	if (netfs_debug)			\
+	if (__do_kdebug(DEBUG))			\
 		kdebug(FMT, ##__VA_ARGS__);	\
 } while (0)
 

gemini-3.7-flash

null

null

							input: 3410
							output: 36
							thoughts: 140
						

**Analyzing the Network Filesystem Patch**

Okay, let's dive into this patch. My initial thought is to break down the changes and ensure I understand the implications for the network filesystem. The first step, as always, is to examine the specific code modifications.

I see the patch targets `fs/netfs/internal.h`. Interesting. It looks like we're dealing with debug macros. I'm noting the new definitions for `FSCACHE_DEBUG_*`, `FSCACHE_POINT_*`, and the introduction of `____do_kdebug`, and `___do_kdebug`. The key change seems to be within the conditional compilation block `#elif defined(CONFIG_NETFS_DEBUG)`. It looks like the patch is altering the behavior of the existing debugging macros, `_enter`, `_leave`, and `_debug`, to now check the output of the `__do_kdebug(...)` function rather than directly using `netfs_debug`.

Now, before I make any definitive conclusions, I need a closer look at the `fs/netfs/internal.h` file itself. I'll use my file-reading tools to zero in on those specific lines and the surrounding context. Understanding the existing debug infrastructure is critical to evaluating the impact of these alterations. I need to see how `netfs_debug` was previously used, and how `__do_kdebug` is intended to integrate. This will help determine if it's a simple refactoring, an optimization, or something more substantial like a change in debugging level or output mechanism.

{
  "File": "fs/netfs/internal.h",
  "FirstLine": 460,
  "LineCount": 80
}

{
  "Contents": " 460:\t/*****************************************************************************/\n 461:\t/*\n 462:\t * debug tracing\n 463:\t */\n 464:\t#define dbgprintk(FMT, ...) \\\n 465:\t\tprintk(\"[%-6.6s] \"FMT\"\\n\", current-\u003ecomm, ##__VA_ARGS__)\n 466:\t\n 467:\t#define kenter(FMT, ...) dbgprintk(\"==\u003e %s(\"FMT\")\", __func__, ##__VA_ARGS__)\n 468:\t#define kleave(FMT, ...) dbgprintk(\"\u003c== %s()\"FMT\"\", __func__, ##__VA_ARGS__)\n 469:\t#define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)\n 470:\t\n 471:\t#define FSCACHE_DEBUG_CACHE\t0\n 472:\t#define FSCACHE_DEBUG_COOKIE\t1\n 473:\t#define FSCACHE_DEBUG_OBJECT\t2\n 474:\t#define FSCACHE_DEBUG_OPERATION\t3\n 475:\t\n 476:\t#define FSCACHE_POINT_ENTER\t1\n 477:\t#define FSCACHE_POINT_LEAVE\t2\n 478:\t#define FSCACHE_POINT_DEBUG\t4\n 479:\t\n 480:\t#ifndef FSCACHE_DEBUG_LEVEL\n 481:\t#define FSCACHE_DEBUG_LEVEL CACHE\n 482:\t#endif\n 483:\t\n 484:\t/*\n 485:\t * Determine whether a particular optional debugging point should be logged.\n 486:\t * Three levels of indirection are needed to expand FSCACHE_DEBUG_LEVEL before\n 487:\t * joining it with its prefix.\n 488:\t */\n 489:\t#define ____do_kdebug(LEVEL, POINT) \\\n 490:\t\tunlikely(netfs_debug \u0026 \\\n 491:\t\t\t (FSCACHE_POINT_##POINT \u003c\u003c (FSCACHE_DEBUG_ ## LEVEL * 3)))\n 492:\t#define ___do_kdebug(LEVEL, POINT) \\\n 493:\t\t____do_kdebug(LEVEL, POINT)\n 494:\t#define __do_kdebug(POINT) \\\n 495:\t\t___do_kdebug(FSCACHE_DEBUG_LEVEL, POINT)\n 496:\t\n 497:\t#ifdef __KDEBUG\n 498:\t#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)\n 499:\t#define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)\n 500:\t#define _debug(FMT, ...) kdebug(FMT, ##__VA_ARGS__)\n 501:\t\n 502:\t#elif defined(CONFIG_NETFS_DEBUG)\n 503:\t#define _enter(FMT, ...)\t\t\t\\\n 504:\tdo {\t\t\t\t\t\t\\\n 505:\t\tif (__do_kdebug(ENTER))\t\t\t\\\n 506:\t\t\tkenter(FMT, ##__VA_ARGS__);\t\\\n 507:\t} while (0)\n 508:\t\n 509:\t#define _leave(FMT, ...)\t\t\t\\\n 510:\tdo {\t\t\t\t\t\t\\\n 511:\t\tif (__do_kdebug(LEAVE))\t\t\t\\\n 512:\t\t\tkleave(FMT, ##__VA_ARGS__);\t\\\n 513:\t} while (0)\n 514:\t\n 515:\t#define _debug(FMT, ...)\t\t\t\\\n 516:\tdo {\t\t\t\t\t\t\\\n 517:\t\tif (__do_kdebug(DEBUG))\t\t\t\\\n 518:\t\t\tkdebug(FMT, ##__VA_ARGS__);\t\\\n 519:\t} while (0)\n 520:\t\n 521:\t#else\n 522:\t#define _enter(FMT, ...) no_printk(\"==\u003e %s(\"FMT\")\", __func__, ##__VA_ARGS__)\n 523:\t#define _leave(FMT, ...) no_printk(\"\u003c== %s()\"FMT\"\", __func__, ##__VA_ARGS__)\n 524:\t#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)\n 525:\t#endif\n 526:\t\n 527:\t/*\n 528:\t * assertions\n 529:\t */\n 530:\t#if 1 /* defined(__KDEBUGALL) */\n 531:\t\n 532:\t#define ASSERT(X)\t\t\t\t\t\t\t\\\n 533:\tdo {\t\t\t\t\t\t\t\t\t\\\n 534:\t\tif (unlikely(!(X))) {\t\t\t\t\t\t\\\n 535:\t\t\tpr_err(\"\\n\");\t\t\t\t\t\\\n 536:\t\t\tpr_err(\"Assertion failed\\n\");\t\\\n 537:\t\t\tBUG();\t\t\t\t\t\t\t\\\n 538:\t\t}\t\t\t\t\t\t\t\t\\\n 539:\t} while (0)\n"
}

gemini-3.7-flash

null

null

							input: 5206
							output: 28
							thoughts: 243
						

**My Initial Assessment**

Okay, so I'm looking at `_enter`, `_leave`, and `_debug`. My understanding is that these are simply debug logging macros – `dbgprintk` specifically. Now, let's go back and examine the negative criteria outlined. I'm focusing on areas where changes are typically *not* accepted.

The prompt states: no changes to Documentation/, comments, spelling, user-space, non-executable, decorative logging or tracepoints and no build system or Kconfig changes that don't change compiled C logic. Alright, that's clear.

So, since these macros are *probably* just used for logging, I need to confirm that suspicion. The changes are probably not important.

Let's do a deeper dive. I need to understand how these macros are actually used within the kernel. Let's start by looking at a couple of places, like `fs/netfs` and `fs/fscache`. I'll also do a general search to see where else in the kernel these logging macros are used, and maybe also grep for any related debug levels – like `FSCACHE_DEBUG_LEVEL` or `netfs_debug` – to get a complete picture. This should tell me quickly if these are simply descriptive, or if there's any alteration of control flow, data structures, or build logic involved.

{
  "Expression": "FSCACHE_DEBUG_LEVEL",
  "PathPrefix": "fs/"
}

{
  "Output": "fs/netfs/fscache_cache.c-7-\nfs/netfs/fscache_cache.c:8:#define FSCACHE_DEBUG_LEVEL CACHE\nfs/netfs/fscache_cache.c-9-#include \u003clinux/export.h\u003e\n--\nfs/netfs/fscache_cookie.c-10-\nfs/netfs/fscache_cookie.c:11:#define FSCACHE_DEBUG_LEVEL COOKIE\nfs/netfs/fscache_cookie.c-12-#include \u003clinux/module.h\u003e\n--\nfs/netfs/fscache_io.c-6- */\nfs/netfs/fscache_io.c:7:#define FSCACHE_DEBUG_LEVEL OPERATION\nfs/netfs/fscache_io.c-8-#include \u003clinux/fscache-cache.h\u003e\n--\nfs/netfs/fscache_main.c-7-\nfs/netfs/fscache_main.c:8:#define FSCACHE_DEBUG_LEVEL CACHE\nfs/netfs/fscache_main.c-9-#include \u003clinux/module.h\u003e\n--\nfs/netfs/fscache_proc.c-7-\nfs/netfs/fscache_proc.c:8:#define FSCACHE_DEBUG_LEVEL CACHE\nfs/netfs/fscache_proc.c-9-#include \u003clinux/module.h\u003e\n--\nfs/netfs/fscache_stats.c-7-\nfs/netfs/fscache_stats.c:8:#define FSCACHE_DEBUG_LEVEL CACHE\nfs/netfs/fscache_stats.c-9-#include \u003clinux/proc_fs.h\u003e\n--\nfs/netfs/fscache_volume.c-7-\nfs/netfs/fscache_volume.c:8:#define FSCACHE_DEBUG_LEVEL COOKIE\nfs/netfs/fscache_volume.c-9-#include \u003clinux/export.h\u003e\n--\nfs/netfs/internal.h=458=void fscache_create_volume(struct fscache_volume *volume, bool wait);\n--\nfs/netfs/internal.h-479-\nfs/netfs/internal.h:480:#ifndef FSCACHE_DEBUG_LEVEL\nfs/netfs/internal.h:481:#define FSCACHE_DEBUG_LEVEL CACHE\nfs/netfs/internal.h-482-#endif\n--\nfs/netfs/internal.h-485- * Determine whether a particular optional debugging point should be logged.\nfs/netfs/internal.h:486: * Three levels of indirection are needed to expand FSCACHE_DEBUG_LEVEL before\nfs/netfs/internal.h-487- * joining it with its prefix.\n--\nfs/netfs/internal.h-494-#define __do_kdebug(POINT) \\\nfs/netfs/internal.h:495:\t___do_kdebug(FSCACHE_DEBUG_LEVEL, POINT)\nfs/netfs/internal.h-496-\n"
}

gemini-3.7-flash

null

null

							input: 6515
							output: 34
							thoughts: 162
						

**Analyzing the Debug Logging in `fs/netfs`**

Okay, let's break this down. From what I'm seeing, these macros – `_enter`, `_leave`, and `_debug` – are basically just glorified print statements. They're ultimately calling `dbgprintk`, which then resolves to `printk`. Essentially, we're talking about debug logging here, nothing more.

The change focuses on adjusting the bitmask check used to control whether these debug print statements get triggered based on `CONFIG_NETFS_DEBUG`. The important question, as always, is whether this modification has any impact on the actual *functionality* of the kernel code.

And after a quick review, I'm confident in saying *no*. These macros don't alter control flow, data structures, state machines, assertions, or logic. They're solely for debug printing. The code's execution path remains the same regardless.

Next, I'll quickly check for any unexpected side effects within `fs/netfs` where these macros are called, just to be thorough, but my initial assessment suggests that there won't be any.

{
  "Expression": "_enter\\(|_leave\\(|_debug\\(",
  "PathPrefix": "fs/netfs/"
}

{
  "Output": "fs/netfs/buffered_read.c=396=static int netfs_read_gaps(struct file *file, struct folio *folio)\n--\nfs/netfs/buffered_read.c-412-\nfs/netfs/buffered_read.c:413:\t_enter(\"%lx\", folio-\u003eindex);\nfs/netfs/buffered_read.c-414-\n--\nfs/netfs/buffered_read.c=501=int netfs_read_folio(struct file *file, struct folio *folio)\n--\nfs/netfs/buffered_read.c-512-\nfs/netfs/buffered_read.c:513:\t_enter(\"%lx\", folio-\u003eindex);\nfs/netfs/buffered_read.c-514-\n--\nfs/netfs/buffered_read.c=630=int netfs_write_begin(struct netfs_inode *ctx,\n--\nfs/netfs/buffered_read.c-703-\t*_folio = folio;\nfs/netfs/buffered_read.c:704:\t_leave(\" = 0\");\nfs/netfs/buffered_read.c-705-\treturn 0;\n--\nfs/netfs/buffered_read.c-713-\t}\nfs/netfs/buffered_read.c:714:\t_leave(\" = %d\", ret);\nfs/netfs/buffered_read.c-715-\treturn ret;\n--\nfs/netfs/buffered_read.c=722=int netfs_prefetch_for_write(struct file *file, struct folio *folio,\n--\nfs/netfs/buffered_read.c-731-\nfs/netfs/buffered_read.c:732:\t_enter(\"%zx @%llx\", flen, start);\nfs/netfs/buffered_read.c-733-\n--\nfs/netfs/buffered_read.c-764-error:\nfs/netfs/buffered_read.c:765:\t_leave(\" = %d\", ret);\nfs/netfs/buffered_read.c-766-\treturn ret;\n--\nfs/netfs/buffered_write.c=87=ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n--\nfs/netfs/buffered_write.c-286-\t\t\tif (ret \u003c 0) {\nfs/netfs/buffered_write.c:287:\t\t\t\t_debug(\"prefetch = %zd\", ret);\nfs/netfs/buffered_write.c-288-\t\t\t\tgoto error_folio_unlock;\n--\nfs/netfs/buffered_write.c-432-\tiocb-\u003eki_pos += written;\nfs/netfs/buffered_write.c:433:\t_leave(\" = %zd [%zd]\", written, ret);\nfs/netfs/buffered_write.c-434-\treturn written ? written : ret;\n--\nfs/netfs/buffered_write.c=501=ssize_t netfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)\n--\nfs/netfs/buffered_write.c-507-\nfs/netfs/buffered_write.c:508:\t_enter(\"%llx,%zx,%llx\", iocb-\u003eki_pos, iov_iter_count(from), i_size_read(inode));\nfs/netfs/buffered_write.c-509-\n--\nfs/netfs/buffered_write.c=537=vm_fault_t netfs_page_mkwrite(struct vm_fault *vmf, struct netfs_group *netfs_group)\n--\nfs/netfs/buffered_write.c-548-\nfs/netfs/buffered_write.c:549:\t_enter(\"%lx\", folio-\u003eindex);\nfs/netfs/buffered_write.c-550-\n--\nfs/netfs/direct_read.c=112=static ssize_t netfs_unbuffered_read(struct netfs_io_request *rreq, bool sync)\n--\nfs/netfs/direct_read.c-115-\nfs/netfs/direct_read.c:116:\t_enter(\"R=%x %llx-%llx\",\nfs/netfs/direct_read.c-117-\t       rreq-\u003edebug_id, rreq-\u003estart, rreq-\u003estart + rreq-\u003elen - 1);\n--\nfs/netfs/direct_read.c-138-\nfs/netfs/direct_read.c:139:\t_leave(\" = %zd\", ret);\nfs/netfs/direct_read.c-140-\treturn ret;\n--\nfs/netfs/direct_read.c=153=ssize_t netfs_unbuffered_read_iter_locked(struct kiocb *iocb, struct iov_iter *iter)\n--\nfs/netfs/direct_read.c-159-\nfs/netfs/direct_read.c:160:\t_enter(\"\");\nfs/netfs/direct_read.c-161-\n--\nfs/netfs/direct_write.c=15=static void netfs_unbuffered_write_done(struct netfs_io_request *wreq)\n--\nfs/netfs/direct_write.c-18-\nfs/netfs/direct_write.c:19:\t_enter(\"R=%x\", wreq-\u003edebug_id);\nfs/netfs/direct_write.c-20-\n--\nfs/netfs/direct_write.c-43-\nfs/netfs/direct_write.c:44:\t_debug(\"finished\");\nfs/netfs/direct_write.c-45-\tnetfs_wake_rreq_flag(wreq, NETFS_RREQ_IN_PROGRESS, netfs_rreq_trace_wake_ip);\n--\nfs/netfs/direct_write.c=94=static int netfs_unbuffered_write(struct netfs_io_request *wreq)\n--\nfs/netfs/direct_write.c-99-\nfs/netfs/direct_write.c:100:\t_enter(\"%llx\", wreq-\u003elen);\nfs/netfs/direct_write.c-101-\n--\nfs/netfs/direct_write.c-198-\tnetfs_unbuffered_write_done(wreq);\nfs/netfs/direct_write.c:199:\t_leave(\" = %d\", ret);\nfs/netfs/direct_write.c-200-\treturn ret;\n--\nfs/netfs/direct_write.c=215=ssize_t netfs_unbuffered_write_iter_locked(struct kiocb *iocb, struct iov_iter *iter,\n--\nfs/netfs/direct_write.c-224-\nfs/netfs/direct_write.c:225:\t_enter(\"\");\nfs/netfs/direct_write.c-226-\n--\nfs/netfs/direct_write.c-232-\nfs/netfs/direct_write.c:233:\t_debug(\"uw %llx-%llx\", start, end);\nfs/netfs/direct_write.c-234-\n--\nfs/netfs/direct_write.c-291-\t\tif (ret \u003c 0) {\nfs/netfs/direct_write.c:292:\t\t\t_debug(\"begin = %zd\", ret);\nfs/netfs/direct_write.c-293-\t\t} else {\n--\nfs/netfs/direct_write.c=323=ssize_t netfs_unbuffered_write_iter(struct kiocb *iocb, struct iov_iter *from)\n--\nfs/netfs/direct_write.c-332-\nfs/netfs/direct_write.c:333:\t_enter(\"%llx,%zx,%llx\", pos, iov_iter_count(from), i_size_read(inode));\nfs/netfs/direct_write.c-334-\n--\nfs/netfs/fscache_cache.c=234=int fscache_add_cache(struct fscache_cache *cache,\n--\nfs/netfs/fscache_cache.c-239-\nfs/netfs/fscache_cache.c:240:\t_enter(\"{%s,%s}\", ops-\u003ename, cache-\u003ename);\nfs/netfs/fscache_cache.c-241-\n--\nfs/netfs/fscache_cache.c-259-\tpr_notice(\"Cache \\\"%s\\\" added (type %s)\\n\", cache-\u003ename, ops-\u003ename);\nfs/netfs/fscache_cache.c:260:\t_leave(\" = 0 [%s]\", cache-\u003ename);\nfs/netfs/fscache_cache.c-261-\treturn 0;\n--\nfs/netfs/fscache_cookie.c=450=struct fscache_cookie *__fscache_acquire_cookie(\n--\nfs/netfs/fscache_cookie.c-458-\nfs/netfs/fscache_cookie.c:459:\t_enter(\"V=%x\", volume-\u003edebug_id);\nfs/netfs/fscache_cookie.c-460-\n--\nfs/netfs/fscache_cookie.c-486-\tfscache_stat(\u0026fscache_n_acquires_ok);\nfs/netfs/fscache_cookie.c:487:\t_leave(\" = c=%08x\", cookie-\u003edebug_id);\nfs/netfs/fscache_cookie.c-488-\treturn cookie;\n--\nfs/netfs/fscache_cookie.c=503=static void fscache_perform_lookup(struct fscache_cookie *cookie)\n--\nfs/netfs/fscache_cookie.c-507-\nfs/netfs/fscache_cookie.c:508:\t_enter(\"\");\nfs/netfs/fscache_cookie.c-509-\n--\nfs/netfs/fscache_cookie.c-521-\t\tneed_withdraw = true;\nfs/netfs/fscache_cookie.c:522:\t\t_leave(\" [fail]\");\nfs/netfs/fscache_cookie.c-523-\t\tgoto out;\n--\nfs/netfs/fscache_cookie.c=569=void __fscache_use_cookie(struct fscache_cookie *cookie, bool will_modify)\n--\nfs/netfs/fscache_cookie.c-574-\nfs/netfs/fscache_cookie.c:575:\t_enter(\"c=%08x\", cookie-\u003edebug_id);\nfs/netfs/fscache_cookie.c-576-\n--\nfs/netfs/fscache_cookie.c-638-\t\tfscache_queue_cookie(cookie, fscache_cookie_get_use_work);\nfs/netfs/fscache_cookie.c:639:\t_leave(\"\");\nfs/netfs/fscache_cookie.c-640-}\n--\nfs/netfs/fscache_cookie.c=700=static void fscache_cookie_state_machine(struct fscache_cookie *cookie)\n--\nfs/netfs/fscache_cookie.c-704-\nfs/netfs/fscache_cookie.c:705:\t_enter(\"c=%x\", cookie-\u003edebug_id);\nfs/netfs/fscache_cookie.c-706-\n--\nfs/netfs/fscache_cookie.c-826-\t\twake_up_cookie_state(cookie);\nfs/netfs/fscache_cookie.c:827:\t_leave(\"\");\nfs/netfs/fscache_cookie.c-828-}\n--\nfs/netfs/fscache_cookie.c=860=static void fscache_cookie_lru_do_one(struct fscache_cookie *cookie)\n--\nfs/netfs/fscache_cookie.c-873-\t\tfscache_stat(\u0026fscache_n_cookies_lru_expired);\nfs/netfs/fscache_cookie.c:874:\t\t_debug(\"lru c=%x\", cookie-\u003edebug_id);\nfs/netfs/fscache_cookie.c-875-\t\t__fscache_withdraw_cookie(cookie);\n--\nfs/netfs/fscache_cookie.c=972=void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)\n--\nfs/netfs/fscache_cookie.c-977-\nfs/netfs/fscache_cookie.c:978:\t_enter(\"c=%08x{%d},%d\",\nfs/netfs/fscache_cookie.c-979-\t       cookie-\u003edebug_id, atomic_read(\u0026cookie-\u003en_active), retire);\n--\nfs/netfs/fscache_cookie.c=1051=void __fscache_invalidate(struct fscache_cookie *cookie,\n--\nfs/netfs/fscache_cookie.c-1056-\nfs/netfs/fscache_cookie.c:1057:\t_enter(\"c=%x\", cookie-\u003edebug_id);\nfs/netfs/fscache_cookie.c-1058-\n--\nfs/netfs/fscache_cookie.c-1078-\t\tspin_unlock(\u0026cookie-\u003elock);\nfs/netfs/fscache_cookie.c:1079:\t\t_leave(\" [no %u]\", cookie-\u003estate);\nfs/netfs/fscache_cookie.c-1080-\t\treturn;\n--\nfs/netfs/fscache_cookie.c-1087-\t\tspin_unlock(\u0026cookie-\u003elock);\nfs/netfs/fscache_cookie.c:1088:\t\t_leave(\" [look %x]\", cookie-\u003einval_counter);\nfs/netfs/fscache_cookie.c-1089-\t\treturn;\n--\nfs/netfs/fscache_cookie.c-1100-\t\t\tfscache_queue_cookie(cookie, fscache_cookie_get_inval_work);\nfs/netfs/fscache_cookie.c:1101:\t\t_leave(\" [inv]\");\nfs/netfs/fscache_cookie.c-1102-\t\treturn;\n--\nfs/netfs/fscache_io.c=22=bool fscache_wait_for_operation(struct netfs_cache_resources *cres,\n--\nfs/netfs/fscache_io.c-29-\tif (!fscache_cache_is_live(cookie-\u003evolume-\u003ecache)) {\nfs/netfs/fscache_io.c:30:\t\t_leave(\" [broken]\");\nfs/netfs/fscache_io.c-31-\t\treturn false;\n--\nfs/netfs/fscache_io.c-34-\tstate = fscache_cookie_state(cookie);\nfs/netfs/fscache_io.c:35:\t_enter(\"c=%08x{%u},%x\", cookie-\u003edebug_id, state, want_state);\nfs/netfs/fscache_io.c-36-\n--\nfs/netfs/fscache_io.c-53-\tdefault:\nfs/netfs/fscache_io.c:54:\t\t_leave(\" [not live]\");\nfs/netfs/fscache_io.c-55-\t\treturn false;\n--\nfs/netfs/fscache_io.c=70=static int fscache_begin_operation(struct netfs_cache_resources *cres,\n--\nfs/netfs/fscache_io.c-93-\tstate = fscache_cookie_state(cookie);\nfs/netfs/fscache_io.c:94:\t_enter(\"c=%08x{%u},%x\", cookie-\u003edebug_id, state, want_state);\nfs/netfs/fscache_io.c-95-\n--\nfs/netfs/fscache_io.c-141-\tfscache_end_cookie_access(cookie, fscache_access_io_not_live);\nfs/netfs/fscache_io.c:142:\t_leave(\" = -ENOBUFS\");\nfs/netfs/fscache_io.c-143-\treturn -ENOBUFS;\n--\nfs/netfs/fscache_io.c=209=void __fscache_write_to_cache(struct fscache_cookie *cookie,\n--\nfs/netfs/fscache_io.c-223-\nfs/netfs/fscache_io.c:224:\t_enter(\"%llx,%zx\", start, len);\nfs/netfs/fscache_io.c-225-\n--\nfs/netfs/fscache_main.c=100=void __exit fscache_exit(void)\nfs/netfs/fscache_main.c-101-{\nfs/netfs/fscache_main.c:102:\t_enter(\"\");\nfs/netfs/fscache_main.c-103-\n--\nfs/netfs/fscache_volume.c=212=static struct fscache_volume *fscache_alloc_volume(const char *volume_key,\n--\nfs/netfs/fscache_volume.c-265-\tup_write(\u0026fscache_addremove_sem);\nfs/netfs/fscache_volume.c:266:\t_leave(\" = v=%x\", volume-\u003edebug_id);\nfs/netfs/fscache_volume.c-267-\treturn volume;\n--\nfs/netfs/fscache_volume.c=463=void fscache_withdraw_volume(struct fscache_volume *volume)\n--\nfs/netfs/fscache_volume.c-466-\nfs/netfs/fscache_volume.c:467:\t_debug(\"withdraw V=%x\", volume-\u003edebug_id);\nfs/netfs/fscache_volume.c-468-\n--\nfs/netfs/internal.h=458=void fscache_create_volume(struct fscache_volume *volume, bool wait);\n--\nfs/netfs/internal.h-497-#ifdef __KDEBUG\nfs/netfs/internal.h:498:#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)\nfs/netfs/internal.h:499:#define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)\nfs/netfs/internal.h:500:#define _debug(FMT, ...) kdebug(FMT, ##__VA_ARGS__)\nfs/netfs/internal.h-501-\nfs/netfs/internal.h-502-#elif defined(CONFIG_NETFS_DEBUG)\nfs/netfs/internal.h:503:#define _enter(FMT, ...)\t\t\t\\\nfs/netfs/internal.h-504-do {\t\t\t\t\t\t\\\n--\nfs/netfs/internal.h-508-\nfs/netfs/internal.h:509:#define _leave(FMT, ...)\t\t\t\\\nfs/netfs/internal.h-510-do {\t\t\t\t\t\t\\\n--\nfs/netfs/internal.h-514-\nfs/netfs/internal.h:515:#define _debug(FMT, ...)\t\t\t\\\nfs/netfs/internal.h-516-do {\t\t\t\t\t\t\\\n--\nfs/netfs/internal.h-521-#else\nfs/netfs/internal.h:522:#define _enter(FMT, ...) no_printk(\"==\u003e %s(\"FMT\")\", __func__, ##__VA_ARGS__)\nfs/netfs/internal.h:523:#define _leave(FMT, ...) no_printk(\"\u003c== %s()\"FMT\"\", __func__, ##__VA_ARGS__)\nfs/netfs/internal.h:524:#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)\nfs/netfs/internal.h-525-#endif\n--\nfs/netfs/misc.c=136=bool netfs_dirty_folio(struct address_space *mapping, struct folio *folio)\n--\nfs/netfs/misc.c-142-\nfs/netfs/misc.c:143:\t_enter(\"\");\nfs/netfs/misc.c-144-\n--\nfs/netfs/misc.c=211=void netfs_invalidate_folio(struct folio *folio, size_t offset, size_t length)\n--\nfs/netfs/misc.c-217-\nfs/netfs/misc.c:218:\t_enter(\"{%lx},%zx,%zx\", folio-\u003eindex, offset, length);\nfs/netfs/misc.c-219-\n--\nfs/netfs/read_collect.c=42=static void netfs_unlock_read_folio(struct netfs_io_request *rreq,\n--\nfs/netfs/read_collect.c-87-\t    test_bit(NETFS_RREQ_NO_UNLOCK_FOLIO, \u0026rreq-\u003eflags)) {\nfs/netfs/read_collect.c:88:\t\t_debug(\"no unlock\");\nfs/netfs/read_collect.c-89-\t} else {\n--\nfs/netfs/read_collect.c=185=static void netfs_collect_read_results(struct netfs_io_request *rreq)\n--\nfs/netfs/read_collect.c-190-\nfs/netfs/read_collect.c:191:\t_enter(\"%llx-%llx\", rreq-\u003estart, rreq-\u003estart + rreq-\u003elen);\nfs/netfs/read_collect.c-192-\ttrace_netfs_rreq(rreq, netfs_rreq_trace_collect);\n--\nfs/netfs/read_collect.c-215-\t\ttrace_netfs_collect_sreq(rreq, front);\nfs/netfs/read_collect.c:216:\t\t_debug(\"sreq [%x] %llx %zx/%zx\",\nfs/netfs/read_collect.c-217-\t\t       front-\u003edebug_index, front-\u003estart, front-\u003etransferred, front-\u003elen);\n--\nfs/netfs/read_collect.c-328-out:\nfs/netfs/read_collect.c:329:\t_leave(\" = %x\", notes);\nfs/netfs/read_collect.c-330-\treturn;\n--\nfs/netfs/read_collect.c-336-\t */\nfs/netfs/read_collect.c:337:\t_debug(\"retry\");\nfs/netfs/read_collect.c-338-\tnetfs_retry_reads(rreq);\n--\nfs/netfs/read_pgpriv2.c=19=static void netfs_pgpriv2_copy_folio(struct netfs_io_request *creq, struct folio *folio)\n--\nfs/netfs/read_pgpriv2.c-25-\nfs/netfs/read_pgpriv2.c:26:\t_enter(\"\");\nfs/netfs/read_pgpriv2.c-27-\n--\nfs/netfs/read_pgpriv2.c-35-\t\t/* mmap beyond eof. */\nfs/netfs/read_pgpriv2.c:36:\t\t_debug(\"beyond eof\");\nfs/netfs/read_pgpriv2.c-37-\t\tfolio_end_private_2(folio);\n--\nfs/netfs/read_pgpriv2.c-50-\nfs/netfs/read_pgpriv2.c:51:\t_debug(\"folio %zx %zx\", flen, fsize);\nfs/netfs/read_pgpriv2.c-52-\n--\nfs/netfs/read_retry.c=26=static void netfs_retry_read_subrequests(struct netfs_io_request *rreq)\n--\nfs/netfs/read_retry.c-31-\nfs/netfs/read_retry.c:32:\t_enter(\"R=%x\", rreq-\u003edebug_id);\nfs/netfs/read_retry.c-33-\n--\nfs/netfs/read_retry.c-90-\nfs/netfs/read_retry.c:91:\t\t_debug(\"from R=%08x[%x] s=%llx ctl=%zx/%zx\",\nfs/netfs/read_retry.c-92-\t\t       rreq-\u003edebug_id, from-\u003edebug_index,\n--\nfs/netfs/read_retry.c-115-\nfs/netfs/read_retry.c:116:\t\t_debug(\" - range: %llx-%llx %llx\", start, start + len - 1, len);\nfs/netfs/read_retry.c-117-\n--\nfs/netfs/read_retry.c=291=void netfs_unlock_abandoned_read_pages(struct netfs_io_request *rreq)\n--\nfs/netfs/read_retry.c-302-\t\t\t\t\t     \u0026rreq-\u003eflags)) {\nfs/netfs/read_retry.c:303:\t\t\t\t\t_debug(\"no unlock\");\nfs/netfs/read_retry.c-304-\t\t\t\t} else {\n--\nfs/netfs/read_single.c=75=static void netfs_single_read_cache(struct netfs_io_request *rreq,\n--\nfs/netfs/read_single.c-79-\nfs/netfs/read_single.c:80:\t_enter(\"R=%08x[%x]\", rreq-\u003edebug_id, subreq-\u003edebug_index);\nfs/netfs/read_single.c-81-\tnetfs_stat(\u0026netfs_n_rh_read);\n--\nfs/netfs/write_collect.c=200=static void netfs_collect_write_results(struct netfs_io_request *wreq)\n--\nfs/netfs/write_collect.c-207-\nfs/netfs/write_collect.c:208:\t_enter(\"%llx-%llx\", wreq-\u003estart, wreq-\u003estart + wreq-\u003elen);\nfs/netfs/write_collect.c-209-\ttrace_netfs_collect(wreq);\n--\nfs/netfs/write_collect.c-239-\t\t\ttrace_netfs_collect_sreq(wreq, front);\nfs/netfs/write_collect.c:240:\t\t\t//_debug(\"sreq [%x] %llx %zx/%zx\",\nfs/netfs/write_collect.c-241-\t\t\t//       front-\u003edebug_index, front-\u003estart, front-\u003etransferred, front-\u003elen);\n--\nfs/netfs/write_collect.c-344-\twreq-\u003enr_group_rel = 0;\nfs/netfs/write_collect.c:345:\t_leave(\" = %x\", notes);\nfs/netfs/write_collect.c-346-\treturn;\n--\nfs/netfs/write_collect.c-352-\t */\nfs/netfs/write_collect.c:353:\t_debug(\"retry\");\nfs/netfs/write_collect.c-354-\tnetfs_retry_writes(wreq);\n--\nfs/netfs/write_collect.c=361=bool netfs_write_collection(struct netfs_io_request *wreq)\n--\nfs/netfs/write_collect.c-367-\nfs/netfs/write_collect.c:368:\t_enter(\"R=%x\", wreq-\u003edebug_id);\nfs/netfs/write_collect.c-369-\n--\nfs/netfs/write_collect.c-406-\nfs/netfs/write_collect.c:407:\t_debug(\"finished\");\nfs/netfs/write_collect.c-408-\tnetfs_wake_rreq_flag(wreq, NETFS_RREQ_IN_PROGRESS, netfs_rreq_trace_wake_ip);\n--\nfs/netfs/write_collect.c=469=void netfs_write_subrequest_terminated(void *_op, ssize_t transferred_or_error)\n--\nfs/netfs/write_collect.c-473-\nfs/netfs/write_collect.c:474:\t_enter(\"%x[%x] %zd\", wreq-\u003edebug_id, subreq-\u003edebug_index, transferred_or_error);\nfs/netfs/write_collect.c-475-\n--\nfs/netfs/write_issue.c=90=struct netfs_io_request *netfs_create_write_req(struct address_space *mapping,\n--\nfs/netfs/write_issue.c-105-\nfs/netfs/write_issue.c:106:\t_enter(\"R=%x\", wreq-\u003edebug_id);\nfs/netfs/write_issue.c-107-\n--\nfs/netfs/write_issue.c=157=void netfs_prepare_write(struct netfs_io_request *wreq,\n--\nfs/netfs/write_issue.c-177-\nfs/netfs/write_issue.c:178:\t_enter(\"R=%x[%x]\", wreq-\u003edebug_id, subreq-\u003edebug_index);\nfs/netfs/write_issue.c-179-\n--\nfs/netfs/write_issue.c=227=static void netfs_do_issue_write(struct netfs_io_stream *stream,\n--\nfs/netfs/write_issue.c-231-\nfs/netfs/write_issue.c:232:\t_enter(\"R=%x[%x],%zx\", wreq-\u003edebug_id, subreq-\u003edebug_index, subreq-\u003elen);\nfs/netfs/write_issue.c-233-\n--\nfs/netfs/write_issue.c=278=size_t netfs_advance_write(struct netfs_io_request *wreq,\n--\nfs/netfs/write_issue.c-285-\tif (!stream-\u003eavail) {\nfs/netfs/write_issue.c:286:\t\t_leave(\"no write\");\nfs/netfs/write_issue.c-287-\t\treturn len;\n--\nfs/netfs/write_issue.c-289-\nfs/netfs/write_issue.c:290:\t_enter(\"R=%x[%x]\", wreq-\u003edebug_id, subreq ? subreq-\u003edebug_index : 0);\nfs/netfs/write_issue.c-291-\n--\nfs/netfs/write_issue.c-301-\tpart = umin(stream-\u003esreq_max_len - subreq-\u003elen, len);\nfs/netfs/write_issue.c:302:\t_debug(\"part %zx/%zx %zx/%zx\", subreq-\u003elen, stream-\u003esreq_max_len, part, len);\nfs/netfs/write_issue.c-303-\tsubreq-\u003elen += part;\n--\nfs/netfs/write_issue.c=320=static int netfs_write_folio(struct netfs_io_request *wreq,\n--\nfs/netfs/write_issue.c-334-\nfs/netfs/write_issue.c:335:\t_enter(\"\");\nfs/netfs/write_issue.c-336-\n--\nfs/netfs/write_issue.c-347-\t\t/* mmap beyond eof. */\nfs/netfs/write_issue.c:348:\t\t_debug(\"beyond eof\");\nfs/netfs/write_issue.c-349-\t\tfolio_start_writeback(folio);\n--\nfs/netfs/write_issue.c-381-\nfs/netfs/write_issue.c:382:\t_debug(\"folio %zx %zx %zx\", foff, flen, fsize);\nfs/netfs/write_issue.c-383-\n--\nfs/netfs/write_issue.c-514-\nfs/netfs/write_issue.c:515:\t_leave(\" = 0\");\nfs/netfs/write_issue.c-516-\treturn 0;\n--\nfs/netfs/write_issue.c=546=int netfs_writepages(struct address_space *mapping,\n--\nfs/netfs/write_issue.c-572-\tdo {\nfs/netfs/write_issue.c:573:\t\t_debug(\"wbiter %lx %llx\", folio-\u003eindex, atomic64_read(\u0026wreq-\u003eissued_to));\nfs/netfs/write_issue.c-574-\n--\nfs/netfs/write_issue.c-594-\tnetfs_put_request(wreq, netfs_rreq_trace_put_return);\nfs/netfs/write_issue.c:595:\t_leave(\" = %d\", error);\nfs/netfs/write_issue.c-596-\treturn error;\n--\nfs/netfs/write_issue.c-608-\tnetfs_wb_end(ictx);\nfs/netfs/write_issue.c:609:\t_leave(\" = %d\", error);\nfs/netfs/write_issue.c-610-\treturn error;\n--\nfs/netfs/write_issue.c=643=int netfs_advance_writethrough(struct netfs_io_request *wreq, struct writeback_control *wbc,\n--\nfs/netfs/write_issue.c-648-\nfs/netfs/write_issue.c:649:\t_enter(\"R=%x ic=%zu ws=%u cp=%zu tp=%u\",\nfs/netfs/write_issue.c-650-\t       wreq-\u003edebug_id, wreq-\u003ebuffer.iter.count, wreq-\u003ewsize, copied, to_page_end);\n--\nfs/netfs/write_issue.c=687=ssize_t netfs_end_writethrough(struct netfs_io_request *wreq, struct writeback_control *wbc,\n--\nfs/netfs/write_issue.c-691-\nfs/netfs/write_issue.c:692:\t_enter(\"R=%x\", wreq-\u003edebug_id);\nfs/netfs/write_issue.c-693-\n--\nfs/netfs/write_issue.c=714=static int netfs_write_folio_single(struct netfs_io_request *wreq,\n--\nfs/netfs/write_issue.c-726-\nfs/netfs/write_issue.c:727:\t_enter(\"\");\nfs/netfs/write_issue.c-728-\n--\nfs/netfs/write_issue.c-737-\nfs/netfs/write_issue.c:738:\t_debug(\"folio %zx/%zx\", flen, fsize);\nfs/netfs/write_issue.c-739-\n--\nfs/netfs/write_issue.c-824-\t\tkdebug(\"R=%x: No submit\", wreq-\u003edebug_id);\nfs/netfs/write_issue.c:825:\t_leave(\" = 0\");\nfs/netfs/write_issue.c-826-\treturn 0;\n--\nfs/netfs/write_issue.c=841=int netfs_writeback_single(struct address_space *mapping,\n--\nfs/netfs/write_issue.c-877-\nfs/netfs/write_issue.c:878:\t\t\t_debug(\"wbiter %lx %llx\", folio-\u003eindex, atomic64_read(\u0026wreq-\u003eissued_to));\nfs/netfs/write_issue.c-879-\n--\nfs/netfs/write_issue.c-897-\tnetfs_put_request(wreq, netfs_rreq_trace_put_return);\nfs/netfs/write_issue.c:898:\t_leave(\" = %d\", ret);\nfs/netfs/write_issue.c-899-\treturn ret;\n--\nfs/netfs/write_issue.c-902-\tnetfs_wb_end(ictx);\nfs/netfs/write_issue.c:903:\t_leave(\" = %d\", ret);\nfs/netfs/write_issue.c-904-\treturn ret;\n--\nfs/netfs/write_retry.c=17=static void netfs_retry_write_stream(struct netfs_io_request *wreq,\n--\nfs/netfs/write_retry.c-21-\nfs/netfs/write_retry.c:22:\t_enter(\"R=%x[%x:]\", wreq-\u003edebug_id, stream-\u003estream_nr);\nfs/netfs/write_retry.c-23-\n"
}

gemini-3.7-flash

null

null

							input: 16322
							output: 91
							thoughts: 1204
						

**WorthFuzzing Evaluation: Debug Logging Modification**

Okay, let's break this down. First, I need to consult Section 2 of the triage philosophy regarding when to mark something as `WorthFuzzing=false`. The key here is to determine if all modified code falls strictly into the negative criteria, specifically "Purely decorative logging...that do not alter control flow or data structures."

Now, let's analyze the patch. Looking at `fs/netfs/internal.h`, it's clear the changes revolve around the debug logging macros: `_enter`, `_leave`, and `_debug`. It looks like it's adding a check against a fine-grained bitmask `netfs_debug` before invoking the underlying `kenter`, `kleave`, or `kdebug` functions (which, in turn, use `dbgprintk`).

After verifying that the diff is restricted to `fs/netfs/internal.h`, these modifications are purely for debug output; specifically, they enable more granular control over what debug messages are displayed. They don't affect kernel control flow, don't modify any data structures, and don't introduce or alter any assertions or error handling. Essentially, these updates just change *when* debug messages are printed based on the bitmask in `netfs_debug`.

Therefore, the patch strictly falls under the "Purely decorative logging" category. Consequently, this patch doesn't warrant fuzzing.

My conclusion is:

-   `WorthFuzzing: false`
-   `FocusSymbols: []`
-   `EnableConfigs: []`
-   `Reasoning: Purely debug logging macro updates in netfs/fscache that do not change kernel logic, data structures, control flow, or assertions.`

Time to call `set-results`.

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies debug logging macros (_enter, _leave, _debug) in fs/netfs/internal.h to support fine-grained debug level bitmask filtering. It constitutes purely decorative logging changes and does not alter executable control flow, data structures, state management, or runtime assertions.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only modifies debug logging macros (_enter, _leave, _debug) in fs/netfs/internal.h to support fine-grained debug level bitmask filtering. It constitutes purely decorative logging changes and does not alter executable control flow, data structures, state management, or runtime assertions.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

null