Linux 6.1.49

Linux 6.1.49

[Greg Kroah-Hartman]

I'm announcing the release of the 6.1.49 kernel.

This upgrade is only for all users of the 6.1 series that use the x86
platform OR the F2FS file system.  If that's not you, feel free to
ignore this release.

The updated 6.1.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.1.y
and can be browsed at the normal kernel.org git web browser:
	https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

------------

 Makefile                             |    2 -
 fs/f2fs/f2fs.h                       |    1 
 fs/f2fs/file.c                       |    5 ++++
 fs/f2fs/node.c                       |   14 +----------
 fs/f2fs/super.c                      |   43 +++++++++++------------------------
 include/linux/f2fs_fs.h              |    1 
 tools/objtool/arch/x86/decode.c      |   11 +++++---
 tools/objtool/check.c                |   22 +++++++++++++++++
 tools/objtool/include/objtool/arch.h |    1 
 tools/objtool/include/objtool/elf.h  |    1 
 10 files changed, 53 insertions(+), 48 deletions(-)

Greg Kroah-Hartman (4):
      Revert "f2fs: don't reset unchangable mount option in f2fs_remount()"
      Revert "f2fs: fix to set flush_merge opt and show noflush_merge"
      Revert "f2fs: fix to do sanity check on direct node in truncate_dnode()"
      Linux 6.1.49

Peter Zijlstra (1):
      objtool/x86: Fix SRSO mess

Re: Linux 6.1.49

[Greg Kroah-Hartman]

diff --git a/Makefile b/Makefile
index 8bb8dd199c55..61ebd54aba89 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 1
-SUBLEVEL = 48
+SUBLEVEL = 49
 EXTRAVERSION =
 NAME = Curry Ramen
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 78f39a78de29..4d1e48c676fa 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3431,6 +3431,7 @@ static inline bool __is_valid_data_blkaddr(block_t blkaddr)
  * file.c
  */
 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
+void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
 int f2fs_truncate(struct inode *inode);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 3ce6da4fac9c..7b94f047cbf7 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -628,6 +628,11 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 					 dn->ofs_in_node, nr_free);
 }
 
+void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
+{
+	f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
+}
+
 static int truncate_partial_data_page(struct inode *inode, u64 from,
 								bool cache_only)
 {
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 9fe502485930..a010b4bc36d2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -923,7 +923,6 @@ static int truncate_node(struct dnode_of_data *dn)
 
 static int truncate_dnode(struct dnode_of_data *dn)
 {
-	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
 	struct page *page;
 	int err;
 
@@ -931,25 +930,16 @@ static int truncate_dnode(struct dnode_of_data *dn)
 		return 1;
 
 	/* get direct node */
-	page = f2fs_get_node_page(sbi, dn->nid);
+	page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid);
 	if (PTR_ERR(page) == -ENOENT)
 		return 1;
 	else if (IS_ERR(page))
 		return PTR_ERR(page);
 
-	if (IS_INODE(page) || ino_of_node(page) != dn->inode->i_ino) {
-		f2fs_err(sbi, "incorrect node reference, ino: %lu, nid: %u, ino_of_node: %u",
-				dn->inode->i_ino, dn->nid, ino_of_node(page));
-		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		f2fs_handle_error(sbi, ERROR_INVALID_NODE_REFERENCE);
-		f2fs_put_page(page, 1);
-		return -EFSCORRUPTED;
-	}
-
 	/* Make dnode_of_data for parameter */
 	dn->node_page = page;
 	dn->ofs_in_node = 0;
-	f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
+	f2fs_truncate_data_blocks(dn);
 	err = truncate_node(dn);
 	if (err) {
 		f2fs_put_page(page, 1);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ff47aad636e5..b6dad389fa14 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1347,12 +1347,6 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 		return -EINVAL;
 	}
 
-	if ((f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb)) &&
-		test_opt(sbi, FLUSH_MERGE)) {
-		f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode");
-		return -EINVAL;
-	}
-
 	if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
 		f2fs_err(sbi, "Allow to mount readonly mode only");
 		return -EROFS;
@@ -1939,10 +1933,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 		seq_puts(seq, ",inline_dentry");
 	else
 		seq_puts(seq, ",noinline_dentry");
-	if (test_opt(sbi, FLUSH_MERGE))
+	if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE))
 		seq_puts(seq, ",flush_merge");
-	else
-		seq_puts(seq, ",noflush_merge");
 	if (test_opt(sbi, NOBARRIER))
 		seq_puts(seq, ",nobarrier");
 	if (test_opt(sbi, FASTBOOT))
@@ -2040,22 +2032,9 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 	return 0;
 }
 
-static void default_options(struct f2fs_sb_info *sbi, bool remount)
+static void default_options(struct f2fs_sb_info *sbi)
 {
 	/* init some FS parameters */
-	if (!remount) {
-		set_opt(sbi, READ_EXTENT_CACHE);
-		clear_opt(sbi, DISABLE_CHECKPOINT);
-
-		if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
-			set_opt(sbi, DISCARD);
-
-		if (f2fs_sb_has_blkzoned(sbi))
-			F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
-		else
-			F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
-	}
-
 	if (f2fs_sb_has_readonly(sbi))
 		F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
 	else
@@ -2078,16 +2057,22 @@ static void default_options(struct f2fs_sb_info *sbi, bool remount)
 	set_opt(sbi, INLINE_XATTR);
 	set_opt(sbi, INLINE_DATA);
 	set_opt(sbi, INLINE_DENTRY);
+	set_opt(sbi, READ_EXTENT_CACHE);
 	set_opt(sbi, NOHEAP);
+	clear_opt(sbi, DISABLE_CHECKPOINT);
 	set_opt(sbi, MERGE_CHECKPOINT);
 	F2FS_OPTION(sbi).unusable_cap = 0;
 	sbi->sb->s_flags |= SB_LAZYTIME;
-	if (!f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb))
-		set_opt(sbi, FLUSH_MERGE);
-	if (f2fs_sb_has_blkzoned(sbi))
+	set_opt(sbi, FLUSH_MERGE);
+	if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
+		set_opt(sbi, DISCARD);
+	if (f2fs_sb_has_blkzoned(sbi)) {
 		F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
-	else
+		F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
+	} else {
 		F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
+		F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
+	}
 
 #ifdef CONFIG_F2FS_FS_XATTR
 	set_opt(sbi, XATTR_USER);
@@ -2259,7 +2244,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 			clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
 	}
 
-	default_options(sbi, true);
+	default_options(sbi);
 
 	/* parse mount options */
 	err = parse_options(sb, data, true);
@@ -4156,7 +4141,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
 						sizeof(raw_super->uuid));
 
-	default_options(sbi, false);
+	default_options(sbi);
 	/* parse mount options */
 	options = kstrdup((const char *)data, GFP_KERNEL);
 	if (data && !options) {
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 77055b239165..ee0d75d9a302 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -104,7 +104,6 @@ enum f2fs_error {
 	ERROR_INCONSISTENT_SIT,
 	ERROR_CORRUPTED_VERITY_XATTR,
 	ERROR_CORRUPTED_XATTR,
-	ERROR_INVALID_NODE_REFERENCE,
 	ERROR_MAX,
 };
 
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 29c35279c7ed..1ed49ab4e871 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -796,8 +796,11 @@ bool arch_is_retpoline(struct symbol *sym)
 
 bool arch_is_rethunk(struct symbol *sym)
 {
-	return !strcmp(sym->name, "__x86_return_thunk") ||
-	       !strcmp(sym->name, "srso_untrain_ret") ||
-	       !strcmp(sym->name, "srso_safe_ret") ||
-	       !strcmp(sym->name, "retbleed_return_thunk");
+	return !strcmp(sym->name, "__x86_return_thunk");
+}
+
+bool arch_is_embedded_insn(struct symbol *sym)
+{
+	return !strcmp(sym->name, "retbleed_return_thunk") ||
+	       !strcmp(sym->name, "srso_safe_ret");
 }
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 913bd361c368..f8008ab31eef 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1164,16 +1164,33 @@ static int add_ignore_alternatives(struct objtool_file *file)
 	return 0;
 }
 
+/*
+ * Symbols that replace INSN_CALL_DYNAMIC, every (tail) call to such a symbol
+ * will be added to the .retpoline_sites section.
+ */
 __weak bool arch_is_retpoline(struct symbol *sym)
 {
 	return false;
 }
 
+/*
+ * Symbols that replace INSN_RETURN, every (tail) call to such a symbol
+ * will be added to the .return_sites section.
+ */
 __weak bool arch_is_rethunk(struct symbol *sym)
 {
 	return false;
 }
 
+/*
+ * Symbols that are embedded inside other instructions, because sometimes crazy
+ * code exists. These are mostly ignored for validation purposes.
+ */
+__weak bool arch_is_embedded_insn(struct symbol *sym)
+{
+	return false;
+}
+
 #define NEGATIVE_RELOC	((void *)-1L)
 
 static struct reloc *insn_reloc(struct objtool_file *file, struct instruction *insn)
@@ -1437,7 +1454,7 @@ static int add_jump_destinations(struct objtool_file *file)
 			 * middle of another instruction.  Objtool only
 			 * knows about the outer instruction.
 			 */
-			if (sym && sym->return_thunk) {
+			if (sym && sym->embedded_insn) {
 				add_return_call(file, insn, false);
 				continue;
 			}
@@ -2327,6 +2344,9 @@ static int classify_symbols(struct objtool_file *file)
 			if (arch_is_rethunk(func))
 				func->return_thunk = true;
 
+			if (arch_is_embedded_insn(func))
+				func->embedded_insn = true;
+
 			if (!strcmp(func->name, "__fentry__"))
 				func->fentry = true;
 
diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h
index beb2f3aa94ff..861c0c60ac81 100644
--- a/tools/objtool/include/objtool/arch.h
+++ b/tools/objtool/include/objtool/arch.h
@@ -90,6 +90,7 @@ int arch_decode_hint_reg(u8 sp_reg, int *base);
 
 bool arch_is_retpoline(struct symbol *sym);
 bool arch_is_rethunk(struct symbol *sym);
+bool arch_is_embedded_insn(struct symbol *sym);
 
 int arch_rewrite_retpolines(struct objtool_file *file);
 
diff --git a/tools/objtool/include/objtool/elf.h b/tools/objtool/include/objtool/elf.h
index 16f4067b82ae..5d4a841fbd31 100644
--- a/tools/objtool/include/objtool/elf.h
+++ b/tools/objtool/include/objtool/elf.h
@@ -60,6 +60,7 @@ struct symbol {
 	u8 return_thunk      : 1;
 	u8 fentry            : 1;
 	u8 profiling_func    : 1;
+	u8 embedded_insn     : 1;
 	struct list_head pv_target;
 };