Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:
 "As usual, lots of singleton and doubleton patches all over the tree
  and there's little I can say which isn't in the individual changelogs.

  The lengthier patch series are

   - 'kdump: use generic functions to simplify crashkernel reservation
     in arch', from Baoquan He. This is mainly cleanups and
     consolidation of the 'crashkernel=' kernel parameter handling

   - After much discussion, David Laight's 'minmax: Relax type checks in
     min() and max()' is here. Hopefully reduces some typecasting and
     the use of min_t() and max_t()

   - A group of patches from Oleg Nesterov which clean up and slightly
     fix our handling of reads from /proc/PID/task/... and which remove
     task_struct.thread_group"

* tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (64 commits)
  scripts/gdb/vmalloc: disable on no-MMU
  scripts/gdb: fix usage of MOD_TEXT not defined when CONFIG_MODULES=n
  .mailmap: add address mapping for Tomeu Vizoso
  mailmap: update email address for Claudiu Beznea
  tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions
  .mailmap: map Benjamin Poirier's address
  scripts/gdb: add lx_current support for riscv
  ocfs2: fix a spelling typo in comment
  proc: test ProtectionKey in proc-empty-vm test
  proc: fix proc-empty-vm test with vsyscall
  fs/proc/base.c: remove unneeded semicolon
  do_io_accounting: use sig->stats_lock
  do_io_accounting: use __for_each_thread()
  ocfs2: replace BUG_ON() at ocfs2_num_free_extents() with ocfs2_error()
  ocfs2: fix a typo in a comment
  scripts/show_delta: add __main__ judgement before main code
  treewide: mark stuff as __ro_after_init
  fs: ocfs2: check status values
  proc: test /proc/${pid}/statm
  compiler.h: move __is_constexpr() to compiler.h
  ...

2 files changed, 16 insertions, 180 deletions

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index ccc5acb39f5a..d8437a98037b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -3959,22 +3959,7 @@ static ssize_t debugfs_bist_linkrate_v3_hw_write(struct file *filp,
 
 	return count;
 }
-
-static int debugfs_bist_linkrate_v3_hw_open(struct inode *inode,
-					    struct file *filp)
-{
-	return single_open(filp, debugfs_bist_linkrate_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_linkrate_v3_hw_fops = {
-	.open = debugfs_bist_linkrate_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_linkrate_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_linkrate_v3_hw);
 
 static const struct {
 	int		value;
@@ -4049,22 +4034,7 @@ static ssize_t debugfs_bist_code_mode_v3_hw_write(struct file *filp,
 
 	return count;
 }
-
-static int debugfs_bist_code_mode_v3_hw_open(struct inode *inode,
-					     struct file *filp)
-{
-	return single_open(filp, debugfs_bist_code_mode_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_code_mode_v3_hw_fops = {
-	.open = debugfs_bist_code_mode_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_code_mode_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_code_mode_v3_hw);
 
 static ssize_t debugfs_bist_phy_v3_hw_write(struct file *filp,
 					    const char __user *buf,
@@ -4098,22 +4068,7 @@ static int debugfs_bist_phy_v3_hw_show(struct seq_file *s, void *p)
 
 	return 0;
 }
-
-static int debugfs_bist_phy_v3_hw_open(struct inode *inode,
-				       struct file *filp)
-{
-	return single_open(filp, debugfs_bist_phy_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_phy_v3_hw_fops = {
-	.open = debugfs_bist_phy_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_phy_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_phy_v3_hw);
 
 static ssize_t debugfs_bist_cnt_v3_hw_write(struct file *filp,
 					const char __user *buf,
@@ -4146,22 +4101,7 @@ static int debugfs_bist_cnt_v3_hw_show(struct seq_file *s, void *p)
 
 	return 0;
 }
-
-static int debugfs_bist_cnt_v3_hw_open(struct inode *inode,
-					  struct file *filp)
-{
-	return single_open(filp, debugfs_bist_cnt_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_cnt_v3_hw_ops = {
-	.open = debugfs_bist_cnt_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_cnt_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_cnt_v3_hw);
 
 static const struct {
 	int		value;
@@ -4225,22 +4165,7 @@ static ssize_t debugfs_bist_mode_v3_hw_write(struct file *filp,
 
 	return count;
 }
-
-static int debugfs_bist_mode_v3_hw_open(struct inode *inode,
-					struct file *filp)
-{
-	return single_open(filp, debugfs_bist_mode_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_mode_v3_hw_fops = {
-	.open = debugfs_bist_mode_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_mode_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_mode_v3_hw);
 
 static ssize_t debugfs_bist_enable_v3_hw_write(struct file *filp,
 					       const char __user *buf,
@@ -4278,22 +4203,7 @@ static int debugfs_bist_enable_v3_hw_show(struct seq_file *s, void *p)
 
 	return 0;
 }
-
-static int debugfs_bist_enable_v3_hw_open(struct inode *inode,
-					  struct file *filp)
-{
-	return single_open(filp, debugfs_bist_enable_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_enable_v3_hw_fops = {
-	.open = debugfs_bist_enable_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_bist_enable_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_enable_v3_hw);
 
 static const struct {
 	char *name;
@@ -4331,21 +4241,7 @@ static int debugfs_v3_hw_show(struct seq_file *s, void *p)
 
 	return 0;
 }
-
-static int debugfs_v3_hw_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, debugfs_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_v3_hw_fops = {
-	.open = debugfs_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_v3_hw);
 
 static ssize_t debugfs_phy_down_cnt_v3_hw_write(struct file *filp,
 						const char __user *buf,
@@ -4376,22 +4272,7 @@ static int debugfs_phy_down_cnt_v3_hw_show(struct seq_file *s, void *p)
 
 	return 0;
 }
-
-static int debugfs_phy_down_cnt_v3_hw_open(struct inode *inode,
-					   struct file *filp)
-{
-	return single_open(filp, debugfs_phy_down_cnt_v3_hw_show,
-			   inode->i_private);
-}
-
-static const struct file_operations debugfs_phy_down_cnt_v3_hw_fops = {
-	.open = debugfs_phy_down_cnt_v3_hw_open,
-	.read = seq_read,
-	.write = debugfs_phy_down_cnt_v3_hw_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_phy_down_cnt_v3_hw);
 
 enum fifo_dump_mode_v3_hw {
 	FIFO_DUMP_FORVER =		(1U << 0),
@@ -4830,7 +4711,7 @@ static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba)
 			    hisi_hba, &debugfs_bist_phy_v3_hw_fops);
 
 	debugfs_create_file("cnt", 0600, hisi_hba->debugfs_bist_dentry,
-			    hisi_hba, &debugfs_bist_cnt_v3_hw_ops);
+			    hisi_hba, &debugfs_bist_cnt_v3_hw_fops);
 
 	debugfs_create_file("loopback_mode", 0600,
 			    hisi_hba->debugfs_bist_dentry,
diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c
index a7a364760b80..55ff3d7482b3 100644
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -528,51 +528,22 @@ qla_dfs_naqp_show(struct seq_file *s, void *unused)
  *
  * Example for creating "TEST" sysfs file:
  * 1. struct qla_hw_data { ... struct dentry *dfs_TEST; }
- * 2. QLA_DFS_SETUP_RD(TEST, scsi_qla_host_t);
+ * 2. QLA_DFS_SETUP_RD(TEST);
  * 3. In qla2x00_dfs_setup():
  * QLA_DFS_CREATE_FILE(ha, TEST, 0600, ha->dfs_dir, vha);
  * 4. In qla2x00_dfs_remove():
  * QLA_DFS_REMOVE_FILE(ha, TEST);
  */
-#define QLA_DFS_SETUP_RD(_name, _ctx_struct)				\
-static int								\
-qla_dfs_##_name##_open(struct inode *inode, struct file *file)		\
-{									\
-	_ctx_struct *__ctx = inode->i_private;				\
-									\
-	return single_open(file, qla_dfs_##_name##_show, __ctx);	\
-}									\
-									\
-static const struct file_operations qla_dfs_##_name##_ops = {		\
-	.open           = qla_dfs_##_name##_open,			\
-	.read           = seq_read,					\
-	.llseek         = seq_lseek,					\
-	.release        = single_release,				\
-};
+#define QLA_DFS_SETUP_RD(_name)	DEFINE_SHOW_ATTRIBUTE(qla_dfs_##_name)
 
-#define QLA_DFS_SETUP_RW(_name, _ctx_struct)				\
-static int								\
-qla_dfs_##_name##_open(struct inode *inode, struct file *file)		\
-{									\
-	_ctx_struct *__ctx = inode->i_private;				\
-									\
-	return single_open(file, qla_dfs_##_name##_show, __ctx);	\
-}									\
-									\
-static const struct file_operations qla_dfs_##_name##_ops = {		\
-	.open           = qla_dfs_##_name##_open,			\
-	.read           = seq_read,					\
-	.llseek         = seq_lseek,					\
-	.release        = single_release,				\
-	.write		= qla_dfs_##_name##_write,			\
-};
+#define QLA_DFS_SETUP_RW(_name)	DEFINE_SHOW_STORE_ATTRIBUTE(qla_dfs_##_name)
 
 #define QLA_DFS_ROOT_CREATE_FILE(_name, _perm, _ctx)			\
 	do {								\
 		if (!qla_dfs_##_name)					\
 			qla_dfs_##_name = debugfs_create_file(#_name,	\
 					_perm, qla2x00_dfs_root, _ctx,	\
-					&qla_dfs_##_name##_ops);	\
+					&qla_dfs_##_name##_fops);	\
 	} while (0)
 
 #define QLA_DFS_ROOT_REMOVE_FILE(_name)					\
@@ -587,7 +558,7 @@ static const struct file_operations qla_dfs_##_name##_ops = {		\
 	do {								\
 		(_struct)->dfs_##_name = debugfs_create_file(#_name,	\
 					_perm, _parent, _ctx,		\
-					&qla_dfs_##_name##_ops)		\
+					&qla_dfs_##_name##_fops)	\
 	} while (0)
 
 #define QLA_DFS_REMOVE_FILE(_struct, _name)				\
@@ -598,14 +569,6 @@ static const struct file_operations qla_dfs_##_name##_ops = {		\
 		}							\
 	} while (0)
 
-static int
-qla_dfs_naqp_open(struct inode *inode, struct file *file)
-{
-	struct scsi_qla_host *vha = inode->i_private;
-
-	return single_open(file, qla_dfs_naqp_show, vha);
-}
-
 static ssize_t
 qla_dfs_naqp_write(struct file *file, const char __user *buffer,
     size_t count, loff_t *pos)
@@ -653,15 +616,7 @@ out_free:
 	kfree(buf);
 	return rc;
 }
-
-static const struct file_operations dfs_naqp_ops = {
-	.open		= qla_dfs_naqp_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= qla_dfs_naqp_write,
-};
-
+QLA_DFS_SETUP_RW(naqp);
 
 int
 qla2x00_dfs_setup(scsi_qla_host_t *vha)
@@ -707,7 +662,7 @@ create_nodes:
 
 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) {
 		ha->tgt.dfs_naqp = debugfs_create_file("naqp",
-		    0400, ha->dfs_dir, vha, &dfs_naqp_ops);
+		    0400, ha->dfs_dir, vha, &qla_dfs_naqp_fops);
 		if (IS_ERR(ha->tgt.dfs_naqp)) {
 			ql_log(ql_log_warn, vha, 0xd011,
 			       "Unable to create debugFS naqp node.\n");