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Message-ID: <2023082706-reuse-dangling-b193@gregkh>
Date: Sun, 27 Aug 2023 21:26:41 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 6.1.49
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;
};
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