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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172// SPDX-License-Identifier: GPL-2.0-or-later/* * NTFS kernel debug support. * * Copyright (c) 2001-2004 Anton Altaparmakov */#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt#include "debug.h"
/* * __ntfs_warning - output a warning to the syslog * @function: name of function outputting the warning * @sb: super block of mounted ntfs filesystem * @fmt: warning string containing format specifications * @...: a variable number of arguments specified in @fmt * * Outputs a warning to the syslog for the mounted ntfs filesystem described * by @sb. * * @fmt and the corresponding @... is printf style format string containing * the warning string and the corresponding format arguments, respectively. * * @function is the name of the function from which __ntfs_warning is being * called. * * Note, you should be using debug.h::ntfs_warning(@sb, @fmt, @...) instead * as this provides the @function parameter automatically. */void __ntfs_warning(const char *function, const struct super_block *sb, const char *fmt, ...){ struct va_format vaf; va_list args; int flen = 0;
if (function) flen = strlen(function); va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args;#ifdef DEBUG if (sb) pr_warn("(device %s): %s(): %pV\n", sb->s_id, flen ? function : "", &vaf); else pr_warn("%s(): %pV\n", flen ? function : "", &vaf);#else if (sb) pr_warn_ratelimited("(device %s): %s(): %pV\n", sb->s_id, flen ? function : "", &vaf); else pr_warn_ratelimited("%s(): %pV\n", flen ? function : "", &vaf);#endif va_end(args);}
/* * __ntfs_error - output an error to the syslog * @function: name of function outputting the error * @sb: super block of mounted ntfs filesystem * @fmt: error string containing format specifications * @...: a variable number of arguments specified in @fmt * * Outputs an error to the syslog for the mounted ntfs filesystem described * by @sb. * * @fmt and the corresponding @... is printf style format string containing * the error string and the corresponding format arguments, respectively. * * @function is the name of the function from which __ntfs_error is being * called. * * Note, you should be using debug.h::ntfs_error(@sb, @fmt, @...) instead * as this provides the @function parameter automatically. */void __ntfs_error(const char *function, struct super_block *sb, const char *fmt, ...){ struct va_format vaf; va_list args; int flen = 0;
if (function) flen = strlen(function); va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args;#ifdef DEBUG if (sb) pr_err("(device %s): %s(): %pV\n", sb->s_id, flen ? function : "", &vaf); else pr_err("%s(): %pV\n", flen ? function : "", &vaf);#else if (sb) pr_err_ratelimited("(device %s): %s(): %pV\n", sb->s_id, flen ? function : "", &vaf); else pr_err_ratelimited("%s(): %pV\n", flen ? function : "", &vaf);#endif va_end(args);
if (sb) ntfs_handle_error(sb);}
#ifdef DEBUG
/* If 1, output debug messages, and if 0, don't. */int debug_msgs;
void __ntfs_debug(const char *file, int line, const char *function, const char *fmt, ...){ struct va_format vaf; va_list args; int flen = 0;
if (!debug_msgs) return; if (function) flen = strlen(function); va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; pr_debug("(%s, %d): %s(): %pV", file, line, flen ? function : "", &vaf); va_end(args);}
/* Dump a runlist. Caller has to provide synchronisation for @rl. */void ntfs_debug_dump_runlist(const struct runlist_element *rl){ int i; const char *lcn_str[5] = { "LCN_DELALLOC ", "LCN_HOLE ", "LCN_RL_NOT_MAPPED", "LCN_ENOENT ", "LCN_unknown " };
if (!debug_msgs) return; pr_debug("Dumping runlist (values in hex):\n"); if (!rl) { pr_debug("Run list not present.\n"); return; } pr_debug("VCN LCN Run length\n"); for (i = 0; ; i++) { s64 lcn = (rl + i)->lcn;
if (lcn < 0) { int index = -lcn - 1;
if (index > -LCN_ENOENT - 1) index = 3; pr_debug("%-16Lx %s %-16Lx%s\n", (long long)(rl + i)->vcn, lcn_str[index], (long long)(rl + i)->length, (rl + i)->length ? "" : " (runlist end)"); } else pr_debug("%-16Lx %-16Lx %-16Lx%s\n", (long long)(rl + i)->vcn, (long long)(rl + i)->lcn, (long long)(rl + i)->length, (rl + i)->length ? "" : " (runlist end)"); if (!(rl + i)->length) break; }}
#endif