Merge 6.1.49 into android14-6.1-lts

Changes in 6.1.49
	objtool/x86: Fix SRSO mess
	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

Change-Id: I612c9fa3a7a3c5b8c47eac6404873b5955217716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 1
-SUBLEVEL = 48
+SUBLEVEL = 49
 EXTRAVERSION =
 NAME = Curry Ramen
 

fs/f2fs/f2fs.h

@@ -3432,6 +3432,7 @@ 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);

fs/f2fs/file.c

@@ -627,6 +627,11 @@ 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)
 {

fs/f2fs/node.c

@@ -925,7 +925,6 @@ 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;
 
@@ -933,25 +932,16 @@ 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);

include/linux/f2fs_fs.h

@@ -103,7 +103,6 @@ enum f2fs_error {
 	ERROR_INCONSISTENT_SIT,
 	ERROR_CORRUPTED_VERITY_XATTR,
 	ERROR_CORRUPTED_XATTR,
-	ERROR_INVALID_NODE_REFERENCE,
 	ERROR_MAX,
 };
 

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");
 }

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;
 

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);
 

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;
 };