Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 286 insertions, 0 deletions

diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
new file mode 100644
index 00000000..9e7765e8
--- /dev/null
+++ b/fs/gfs2/util.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#include <linux/spinlock.h>
+#include <linux/completion.h>
+#include <linux/buffer_head.h>
+#include <linux/crc32.h>
+#include <linux/gfs2_ondisk.h>
+#include <asm/uaccess.h>
+
+#include "gfs2.h"
+#include "incore.h"
+#include "glock.h"
+#include "util.h"
+
+struct kmem_cache *gfs2_glock_cachep __read_mostly;
+struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
+struct kmem_cache *gfs2_inode_cachep __read_mostly;
+struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
+struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
+struct kmem_cache *gfs2_quotad_cachep __read_mostly;
+mempool_t *gfs2_bh_pool __read_mostly;
+
+void gfs2_assert_i(struct gfs2_sbd *sdp)
+{
+	printk(KERN_EMERG "GFS2: fsid=%s: fatal assertion failed\n",
+	       sdp->sd_fsname);
+}
+
+int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	const struct lm_lockops *lm = ls->ls_ops;
+	va_list args;
+
+	if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
+	    test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
+		return 0;
+
+	va_start(args, fmt);
+	vprintk(fmt, args);
+	va_end(args);
+
+	if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW) {
+		fs_err(sdp, "about to withdraw this file system\n");
+		BUG_ON(sdp->sd_args.ar_debug);
+
+		kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
+
+		if (lm->lm_unmount) {
+			fs_err(sdp, "telling LM to unmount\n");
+			lm->lm_unmount(sdp);
+		}
+		fs_err(sdp, "withdrawn\n");
+		dump_stack();
+	}
+
+	if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
+		panic("GFS2: fsid=%s: panic requested.\n", sdp->sd_fsname);
+
+	return -1;
+}
+
+/**
+ * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
+ * Returns: -1 if this call withdrew the machine,
+ *          -2 if it was already withdrawn
+ */
+
+int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
+			   const char *function, char *file, unsigned int line)
+{
+	int me;
+	me = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: assertion \"%s\" failed\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname, assertion,
+		sdp->sd_fsname, function, file, line);
+	dump_stack();
+	return (me) ? -1 : -2;
+}
+
+/**
+ * gfs2_assert_warn_i - Print a message to the console if @assertion is false
+ * Returns: -1 if we printed something
+ *          -2 if we didn't
+ */
+
+int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
+		       const char *function, char *file, unsigned int line)
+{
+	if (time_before(jiffies,
+			sdp->sd_last_warning +
+			gfs2_tune_get(sdp, gt_complain_secs) * HZ))
+		return -2;
+
+	if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
+		printk(KERN_WARNING
+		       "GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
+		       "GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		       sdp->sd_fsname, assertion,
+		       sdp->sd_fsname, function, file, line);
+
+	if (sdp->sd_args.ar_debug)
+		BUG();
+	else
+		dump_stack();
+
+	if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
+		panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
+		      "GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		      sdp->sd_fsname, assertion,
+		      sdp->sd_fsname, function, file, line);
+
+	sdp->sd_last_warning = jiffies;
+
+	return -1;
+}
+
+/**
+ * gfs2_consist_i - Flag a filesystem consistency error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          0 if it was already withdrawn
+ */
+
+int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
+		   char *file, unsigned int line)
+{
+	int rv;
+	rv = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: filesystem consistency error\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, function, file, line);
+	return rv;
+}
+
+/**
+ * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          0 if it was already withdrawn
+ */
+
+int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
+			 const char *function, char *file, unsigned int line)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	int rv;
+	rv = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: filesystem consistency error\n"
+		"GFS2: fsid=%s:   inode = %llu %llu\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, (unsigned long long)ip->i_no_formal_ino,
+		(unsigned long long)ip->i_no_addr,
+		sdp->sd_fsname, function, file, line);
+	return rv;
+}
+
+/**
+ * gfs2_consist_rgrpd_i - Flag a RG consistency error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          0 if it was already withdrawn
+ */
+
+int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
+			 const char *function, char *file, unsigned int line)
+{
+	struct gfs2_sbd *sdp = rgd->rd_sbd;
+	int rv;
+	rv = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: filesystem consistency error\n"
+		"GFS2: fsid=%s:   RG = %llu\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, (unsigned long long)rgd->rd_addr,
+		sdp->sd_fsname, function, file, line);
+	return rv;
+}
+
+/**
+ * gfs2_meta_check_ii - Flag a magic number consistency error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          -2 if it was already withdrawn
+ */
+
+int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
+		       const char *type, const char *function, char *file,
+		       unsigned int line)
+{
+	int me;
+	me = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: invalid metadata block\n"
+		"GFS2: fsid=%s:   bh = %llu (%s)\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, (unsigned long long)bh->b_blocknr, type,
+		sdp->sd_fsname, function, file, line);
+	return (me) ? -1 : -2;
+}
+
+/**
+ * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          -2 if it was already withdrawn
+ */
+
+int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
+			   u16 type, u16 t, const char *function,
+			   char *file, unsigned int line)
+{
+	int me;
+	me = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: invalid metadata block\n"
+		"GFS2: fsid=%s:   bh = %llu (type: exp=%u, found=%u)\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, (unsigned long long)bh->b_blocknr, type, t,
+		sdp->sd_fsname, function, file, line);
+	return (me) ? -1 : -2;
+}
+
+/**
+ * gfs2_io_error_i - Flag an I/O error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          0 if it was already withdrawn
+ */
+
+int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
+		    unsigned int line)
+{
+	int rv;
+	rv = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: I/O error\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, function, file, line);
+	return rv;
+}
+
+/**
+ * gfs2_io_error_bh_i - Flag a buffer I/O error and withdraw
+ * Returns: -1 if this call withdrew the machine,
+ *          0 if it was already withdrawn
+ */
+
+int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
+		       const char *function, char *file, unsigned int line)
+{
+	int rv;
+	rv = gfs2_lm_withdraw(sdp,
+		"GFS2: fsid=%s: fatal: I/O error\n"
+		"GFS2: fsid=%s:   block = %llu\n"
+		"GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		sdp->sd_fsname,
+		sdp->sd_fsname, (unsigned long long)bh->b_blocknr,
+		sdp->sd_fsname, function, file, line);
+	return rv;
+}
+
+void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
+		      unsigned int bit, int new_value)
+{
+	unsigned int c, o, b = bit;
+	int old_value;
+
+	c = b / (8 * PAGE_SIZE);
+	b %= 8 * PAGE_SIZE;
+	o = b / 8;
+	b %= 8;
+
+	old_value = (bitmap[c][o] & (1 << b));
+	gfs2_assert_withdraw(sdp, !old_value != !new_value);
+
+	if (new_value)
+		bitmap[c][o] |= 1 << b;
+	else
+		bitmap[c][o] &= ~(1 << b);
+}
+