From: Jan Kara
mainline inclusion
from mainline-v5.11-rc4
commit 4392fbc4bab57db3760f0fb61258cb7089b37665
category: bugfix
issue: #I3ZXZF
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
-----------------------------------------------
Everybody passes 1 as sync argument of ext4_commit_super(). Just drop
it.
Reviewed-by: Harshad Shirwadkar
Signed-off-by: Jan Kara
Link: https://lore.kernel.org/r/20201216101844.22917-3-jack@suse.cz
Signed-off-by: Theodore Ts'o
Signed-off-by: Ye Bin
Reviewed-by: zhangyi (F)
Signed-off-by: Chen Jun
Signed-off-by: Yu Changchun
---
fs/ext4/super.c | 47 ++++++++++++++++++++++-------------------------
1 file changed, 22 insertions(+), 25 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index ea4c8f2c03a7..a1f7bf52ed2f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -65,7 +65,7 @@ static struct ratelimit_state ext4_mount_msg_ratelimit;
static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
unsigned long journal_devnum);
static int ext4_show_options(struct seq_file *seq, struct dentry *root);
-static int ext4_commit_super(struct super_block *sb, int sync);
+static int ext4_commit_super(struct super_block *sb);
static int ext4_mark_recovery_complete(struct super_block *sb,
struct ext4_super_block *es);
static int ext4_clear_journal_err(struct super_block *sb,
@@ -621,7 +621,7 @@ static void save_error_info(struct super_block *sb, int error,
{
__save_error_info(sb, error, ino, block, func, line);
if (!bdev_read_only(sb->s_bdev))
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
}
/* Deal with the reporting of failure conditions on a filesystem such as
@@ -686,7 +686,7 @@ static void flush_stashed_error_work(struct work_struct *work)
struct ext4_sb_info *sbi = container_of(work, struct ext4_sb_info,
s_error_work);
- ext4_commit_super(sbi->s_sb, 1);
+ ext4_commit_super(sbi->s_sb);
}
#define ext4_error_ratelimit(sb) \
@@ -1152,7 +1152,7 @@ static void ext4_put_super(struct super_block *sb)
es->s_state = cpu_to_le16(sbi->s_mount_state);
}
if (!sb_rdonly(sb))
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
rcu_read_lock();
group_desc = rcu_dereference(sbi->s_group_desc);
@@ -2643,7 +2643,7 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
if (sbi->s_journal)
ext4_set_feature_journal_needs_recovery(sb);
- err = ext4_commit_super(sb, 1);
+ err = ext4_commit_super(sb);
done:
if (test_opt(sb, DEBUG))
printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%u, "
@@ -4858,7 +4858,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (DUMMY_ENCRYPTION_ENABLED(sbi) && !sb_rdonly(sb) &&
!ext4_has_feature_encrypt(sb)) {
ext4_set_feature_encrypt(sb);
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
}
/*
@@ -5425,7 +5425,7 @@ static int ext4_load_journal(struct super_block *sb,
es->s_journal_dev = cpu_to_le32(journal_devnum);
/* Make sure we flush the recovery flag to disk. */
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
}
return 0;
@@ -5435,7 +5435,7 @@ static int ext4_load_journal(struct super_block *sb,
return err;
}
-static int ext4_commit_super(struct super_block *sb, int sync)
+static int ext4_commit_super(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = EXT4_SB(sb)->s_es;
@@ -5518,8 +5518,7 @@ static int ext4_commit_super(struct super_block *sb, int sync)
BUFFER_TRACE(sbh, "marking dirty");
ext4_superblock_csum_set(sb);
- if (sync)
- lock_buffer(sbh);
+ lock_buffer(sbh);
if (buffer_write_io_error(sbh) || !buffer_uptodate(sbh)) {
/*
* Oh, dear. A previous attempt to write the
@@ -5535,16 +5534,14 @@ static int ext4_commit_super(struct super_block *sb, int sync)
set_buffer_uptodate(sbh);
}
mark_buffer_dirty(sbh);
- if (sync) {
- unlock_buffer(sbh);
- error = __sync_dirty_buffer(sbh,
- REQ_SYNC | (test_opt(sb, BARRIER) ? REQ_FUA : 0));
- if (buffer_write_io_error(sbh)) {
- ext4_msg(sb, KERN_ERR, "I/O error while writing "
- "superblock");
- clear_buffer_write_io_error(sbh);
- set_buffer_uptodate(sbh);
- }
+ unlock_buffer(sbh);
+ error = __sync_dirty_buffer(sbh,
+ REQ_SYNC | (test_opt(sb, BARRIER) ? REQ_FUA : 0));
+ if (buffer_write_io_error(sbh)) {
+ ext4_msg(sb, KERN_ERR, "I/O error while writing "
+ "superblock");
+ clear_buffer_write_io_error(sbh);
+ set_buffer_uptodate(sbh);
}
return error;
}
@@ -5575,7 +5572,7 @@ static int ext4_mark_recovery_complete(struct super_block *sb,
if (ext4_has_feature_journal_needs_recovery(sb) && sb_rdonly(sb)) {
ext4_clear_feature_journal_needs_recovery(sb);
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
}
out:
jbd2_journal_unlock_updates(journal);
@@ -5617,7 +5614,7 @@ static int ext4_clear_journal_err(struct super_block *sb,
EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
jbd2_journal_clear_err(journal);
jbd2_journal_update_sb_errno(journal);
@@ -5719,7 +5716,7 @@ static int ext4_freeze(struct super_block *sb)
ext4_clear_feature_journal_needs_recovery(sb);
}
- error = ext4_commit_super(sb, 1);
+ error = ext4_commit_super(sb);
out:
if (journal)
/* we rely on upper layer to stop further updates */
@@ -5741,7 +5738,7 @@ static int ext4_unfreeze(struct super_block *sb)
ext4_set_feature_journal_needs_recovery(sb);
}
- ext4_commit_super(sb, 1);
+ ext4_commit_super(sb);
return 0;
}
@@ -6001,7 +5998,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
}
if (sbi->s_journal == NULL && !(old_sb_flags & SB_RDONLY)) {
- err = ext4_commit_super(sb, 1);
+ err = ext4_commit_super(sb);
if (err)
goto restore_opts;
}
--
2.22.0
