Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 180 insertions, 0 deletions

diff --git a/fs/ntfs/debug.c b/fs/ntfs/debug.c
new file mode 100644
index 000000000000..6fb6bb5e3723
--- /dev/null
+++ b/fs/ntfs/debug.c
@@ -0,0 +1,180 @@
+/*
+ * debug.c - NTFS kernel debug support. Part of the Linux-NTFS project.
+ *
+ * Copyright (c) 2001-2004 Anton Altaparmakov
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "debug.h"
+
+/*
+ * A static buffer to hold the error string being displayed and a spinlock
+ * to protect concurrent accesses to it.
+ */
+static char err_buf[1024];
+static DEFINE_SPINLOCK(err_buf_lock);
+
+/**
+ * __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, ...)
+{
+        va_list args;
+        int flen = 0;
+
+#ifndef DEBUG
+        if (!printk_ratelimit())
+                return;
+#endif
+        if (function)
+                flen = strlen(function);
+        spin_lock(&err_buf_lock);
+        va_start(args, fmt);
+        vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+        va_end(args);
+        if (sb)
+                printk(KERN_ERR "NTFS-fs warning (device %s): %s(): %s\n",
+                                sb->s_id, flen ? function : "", err_buf);
+        else
+                printk(KERN_ERR "NTFS-fs warning: %s(): %s\n",
+                                flen ? function : "", err_buf);
+        spin_unlock(&err_buf_lock);
+}
+
+/**
+ * __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, const struct super_block *sb,
+                const char *fmt, ...)
+{
+        va_list args;
+        int flen = 0;
+
+#ifndef DEBUG
+        if (!printk_ratelimit())
+                return;
+#endif
+        if (function)
+                flen = strlen(function);
+        spin_lock(&err_buf_lock);
+        va_start(args, fmt);
+        vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+        va_end(args);
+        if (sb)
+                printk(KERN_ERR "NTFS-fs error (device %s): %s(): %s\n",
+                                sb->s_id, flen ? function : "", err_buf);
+        else
+                printk(KERN_ERR "NTFS-fs error: %s(): %s\n",
+                                flen ? function : "", err_buf);
+        spin_unlock(&err_buf_lock);
+}
+
+#ifdef DEBUG
+
+/* If 1, output debug messages, and if 0, don't. */
+int debug_msgs = 0;
+
+void __ntfs_debug (const char *file, int line, const char *function,
+                const char *fmt, ...)
+{
+        va_list args;
+        int flen = 0;
+
+        if (!debug_msgs)
+                return;
+        if (function)
+                flen = strlen(function);
+        spin_lock(&err_buf_lock);
+        va_start(args, fmt);
+        vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+        va_end(args);
+        printk(KERN_DEBUG "NTFS-fs DEBUG (%s, %d): %s(): %s\n", file, line,
+                        flen ? function : "", err_buf);
+        spin_unlock(&err_buf_lock);
+}
+
+/* Dump a runlist. Caller has to provide synchronisation for @rl. */
+void ntfs_debug_dump_runlist(const runlist_element *rl)
+{
+        int i;
+        const char *lcn_str[5] = { "LCN_HOLE         ", "LCN_RL_NOT_MAPPED",
+                                   "LCN_ENOENT       ", "LCN_unknown      " };
+
+        if (!debug_msgs)
+                return;
+        printk(KERN_DEBUG "NTFS-fs DEBUG: Dumping runlist (values in hex):\n");
+        if (!rl) {
+                printk(KERN_DEBUG "Run list not present.\n");
+                return;
+        }
+        printk(KERN_DEBUG "VCN              LCN               Run length\n");
+        for (i = 0; ; i++) {
+                LCN lcn = (rl + i)->lcn;
+
+                if (lcn < (LCN)0) {
+                        int index = -lcn - 1;
+
+                        if (index > -LCN_ENOENT - 1)
+                                index = 3;
+                        printk(KERN_DEBUG "%-16Lx %s %-16Lx%s\n",
+                                        (rl + i)->vcn, lcn_str[index],
+                                        (rl + i)->length, (rl + i)->length ?
+                                        "" : " (runlist end)");
+                } else
+                        printk(KERN_DEBUG "%-16Lx %-16Lx  %-16Lx%s\n",
+                                        (rl + i)->vcn, (rl + i)->lcn,
+                                        (rl + i)->length, (rl + i)->length ?
+                                        "" : " (runlist end)");
+                if (!(rl + i)->length)
+                        break;
+        }
+}
+
+#endif