Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 232 insertions, 0 deletions

diff --git a/fs/gfs2/util.h b/fs/gfs2/util.h
new file mode 100644
index 0000000000..cdb8395291
--- /dev/null
+++ b/fs/gfs2/util.h
@@ -0,0 +1,232 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ */
+
+#ifndef __UTIL_DOT_H__
+#define __UTIL_DOT_H__
+
+#ifdef pr_fmt
+#undef pr_fmt
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#endif
+
+#include <linux/mempool.h>
+
+#include "incore.h"
+
+#define fs_emerg(fs, fmt, ...)						\
+	pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
+#define fs_warn(fs, fmt, ...)						\
+	pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
+#define fs_err(fs, fmt, ...)						\
+	pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
+#define fs_info(fs, fmt, ...)						\
+	pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
+
+void gfs2_assert_i(struct gfs2_sbd *sdp);
+
+#define gfs2_assert(sdp, assertion) \
+do { \
+	if (unlikely(!(assertion))) { \
+		gfs2_assert_i(sdp); \
+		BUG(); \
+        } \
+} while (0)
+
+
+void gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
+			    const char *function, char *file, unsigned int line,
+			    bool delayed);
+
+#define gfs2_assert_withdraw(sdp, assertion) \
+	({ \
+		bool _bool = (assertion); \
+		if (unlikely(!_bool)) \
+			gfs2_assert_withdraw_i((sdp), #assertion, \
+					__func__, __FILE__, __LINE__, false); \
+		!_bool; \
+	})
+
+#define gfs2_assert_withdraw_delayed(sdp, assertion) \
+	({ \
+		bool _bool = (assertion); \
+		if (unlikely(!_bool)) \
+			gfs2_assert_withdraw_i((sdp), #assertion, \
+					__func__, __FILE__, __LINE__, true); \
+		!_bool; \
+	})
+
+void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
+			const char *function, char *file, unsigned int line);
+
+#define gfs2_assert_warn(sdp, assertion) \
+	({ \
+		bool _bool = (assertion); \
+		if (unlikely(!_bool)) \
+			gfs2_assert_warn_i((sdp), #assertion, \
+					__func__, __FILE__, __LINE__); \
+		!_bool; \
+	})
+
+void gfs2_consist_i(struct gfs2_sbd *sdp,
+		    const char *function, char *file, unsigned int line);
+
+#define gfs2_consist(sdp) \
+gfs2_consist_i((sdp), __func__, __FILE__, __LINE__)
+
+
+void gfs2_consist_inode_i(struct gfs2_inode *ip,
+			  const char *function, char *file, unsigned int line);
+
+#define gfs2_consist_inode(ip) \
+gfs2_consist_inode_i((ip), __func__, __FILE__, __LINE__)
+
+
+void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
+			  const char *function, char *file, unsigned int line);
+
+#define gfs2_consist_rgrpd(rgd) \
+gfs2_consist_rgrpd_i((rgd), __func__, __FILE__, __LINE__)
+
+
+int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
+		       const char *type, const char *function,
+		       char *file, unsigned int line);
+
+static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
+				    struct buffer_head *bh)
+{
+	struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
+	u32 magic = be32_to_cpu(mh->mh_magic);
+	if (unlikely(magic != GFS2_MAGIC)) {
+		fs_err(sdp, "Magic number missing at %llu\n",
+		       (unsigned long long)bh->b_blocknr);
+		return -EIO;
+	}
+	return 0;
+}
+
+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);
+
+static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
+					struct buffer_head *bh,
+					u16 type,
+					const char *function,
+					char *file, unsigned int line)
+{
+	struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
+	u32 magic = be32_to_cpu(mh->mh_magic);
+	u16 t = be32_to_cpu(mh->mh_type);
+	if (unlikely(magic != GFS2_MAGIC))
+		return gfs2_meta_check_ii(sdp, bh, "magic number", function,
+					  file, line);
+        if (unlikely(t != type))
+		return gfs2_metatype_check_ii(sdp, bh, type, t, function,
+					      file, line);
+	return 0;
+}
+
+#define gfs2_metatype_check(sdp, bh, type) \
+gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
+
+static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
+				     u16 format)
+{
+	struct gfs2_meta_header *mh;
+	mh = (struct gfs2_meta_header *)bh->b_data;
+	mh->mh_type = cpu_to_be32(type);
+	mh->mh_format = cpu_to_be32(format);
+}
+
+
+int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
+		    char *file, unsigned int line);
+
+extern int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
+			       bool verbose);
+extern int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp);
+extern void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh);
+
+#define gfs2_io_error(sdp) \
+gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__)
+
+
+void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
+			const char *function, char *file, unsigned int line,
+			bool withdraw);
+
+#define gfs2_io_error_bh_wd(sdp, bh) \
+gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true)
+
+#define gfs2_io_error_bh(sdp, bh) \
+gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false)
+
+
+extern struct kmem_cache *gfs2_glock_cachep;
+extern struct kmem_cache *gfs2_glock_aspace_cachep;
+extern struct kmem_cache *gfs2_inode_cachep;
+extern struct kmem_cache *gfs2_bufdata_cachep;
+extern struct kmem_cache *gfs2_rgrpd_cachep;
+extern struct kmem_cache *gfs2_quotad_cachep;
+extern struct kmem_cache *gfs2_qadata_cachep;
+extern struct kmem_cache *gfs2_trans_cachep;
+extern mempool_t *gfs2_page_pool;
+extern struct workqueue_struct *gfs2_control_wq;
+
+static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
+					   unsigned int *p)
+{
+	unsigned int x;
+	spin_lock(&gt->gt_spin);
+	x = *p;
+	spin_unlock(&gt->gt_spin);
+	return x;
+}
+
+/**
+ * gfs2_withdraw_delayed - withdraw as soon as possible without deadlocks
+ * @sdp: the superblock
+ */
+static inline void gfs2_withdraw_delayed(struct gfs2_sbd *sdp)
+{
+	set_bit(SDF_WITHDRAWING, &sdp->sd_flags);
+}
+
+/**
+ * gfs2_withdrawn - test whether the file system is withdrawing or withdrawn
+ * @sdp: the superblock
+ */
+static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp)
+{
+	return test_bit(SDF_WITHDRAWN, &sdp->sd_flags) ||
+		test_bit(SDF_WITHDRAWING, &sdp->sd_flags);
+}
+
+/**
+ * gfs2_withdrawing - check if a withdraw is pending
+ * @sdp: the superblock
+ */
+static inline bool gfs2_withdrawing(struct gfs2_sbd *sdp)
+{
+	return test_bit(SDF_WITHDRAWING, &sdp->sd_flags) &&
+	       !test_bit(SDF_WITHDRAWN, &sdp->sd_flags);
+}
+
+static inline bool gfs2_withdraw_in_prog(struct gfs2_sbd *sdp)
+{
+	return test_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags);
+}
+
+#define gfs2_tune_get(sdp, field) \
+gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
+
+__printf(2, 3)
+void gfs2_lm(struct gfs2_sbd *sdp, const char *fmt, ...);
+int gfs2_withdraw(struct gfs2_sbd *sdp);
+
+#endif /* __UTIL_DOT_H__ */