From: Jan Kara jack@suse.cz
mainline inclusion from mainline-v5.11-rc4 commit e789ca0cc1d51296832b8424fa4008ce6e9d1703 category: bugfix bugzilla: 46758 CVE: NA
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save_error_info() is always called together with ext4_handle_error(). Combine them into a single call and move unconditional bits out of save_error_info() into ext4_handle_error().
Signed-off-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20201216101844.22917-2-jack@suse.cz Signed-off-by: Theodore Ts'o tytso@mit.edu
conflicts: fs/ext4/super.c
Signed-off-by: Ye Bin yebin10@huawei.com Reviewed-by: zhangyi (F) yi.zhang@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com Signed-off-by: Cheng Jian cj.chengjian@huawei.com --- fs/ext4/super.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9ae5a84c80c9..f0986a1ee303 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -490,9 +490,6 @@ static void __save_error_info(struct super_block *sb, int error, { struct ext4_sb_info *sbi = EXT4_SB(sb);
- EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; - if (bdev_read_only(sb->s_bdev)) - return; /* We default to EFSCORRUPTED error... */ if (error == 0) error = EFSCORRUPTED; @@ -546,13 +543,19 @@ static void save_error_info(struct super_block *sb, int error, * at a critical moment in log management. */
-static void ext4_handle_error(struct super_block *sb, bool force_ro) +static void ext4_handle_error(struct super_block *sb, bool force_ro, int error, + __u32 ino, __u64 block, + const char *func, unsigned int line) { journal_t *journal = EXT4_SB(sb)->s_journal;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; if (test_opt(sb, WARN_ON_ERROR)) WARN_ON_ONCE(1);
+ if (!bdev_read_only(sb->s_bdev)) + save_error_info(sb, error, ino, block, func, line); + if (sb_rdonly(sb)) return;
@@ -615,8 +618,7 @@ void __ext4_error(struct super_block *sb, const char *function, sb->s_id, function, line, current->comm, &vaf); va_end(args); } - save_error_info(sb, error, 0, block, function, line); - ext4_handle_error(sb, force_ro); + ext4_handle_error(sb, force_ro, error, 0, block, function, line); }
void __ext4_error_inode(struct inode *inode, const char *function, @@ -646,9 +648,8 @@ void __ext4_error_inode(struct inode *inode, const char *function, current->comm, &vaf); va_end(args); } - save_error_info(inode->i_sb, error, inode->i_ino, block, - function, line); - ext4_handle_error(inode->i_sb, false); + ext4_handle_error(inode->i_sb, false, error, inode->i_ino, block, + function, line); }
void __ext4_error_file(struct file *file, const char *function, @@ -687,9 +688,8 @@ void __ext4_error_file(struct file *file, const char *function, current->comm, path, &vaf); va_end(args); } - save_error_info(inode->i_sb, EFSCORRUPTED, inode->i_ino, block, - function, line); - ext4_handle_error(inode->i_sb, false); + ext4_handle_error(inode->i_sb, false, EFSCORRUPTED, inode->i_ino, block, + function, line); }
const char *ext4_decode_error(struct super_block *sb, int errno, @@ -756,8 +756,7 @@ void __ext4_std_error(struct super_block *sb, const char *function, sb->s_id, function, line, errstr); }
- save_error_info(sb, -errno, 0, 0, function, line); - ext4_handle_error(sb, false); + ext4_handle_error(sb, false, -errno, 0, 0, function, line); }
void __ext4_msg(struct super_block *sb, @@ -847,13 +846,14 @@ __acquires(bitlock) if (test_opt(sb, ERRORS_CONT)) { if (test_opt(sb, WARN_ON_ERROR)) WARN_ON_ONCE(1); + EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; __save_error_info(sb, EFSCORRUPTED, ino, block, function, line); - schedule_work(&EXT4_SB(sb)->s_error_work); + if (!bdev_read_only(sb->s_bdev)) + schedule_work(&EXT4_SB(sb)->s_error_work); return; } ext4_unlock_group(sb, grp); - save_error_info(sb, EFSCORRUPTED, ino, block, function, line); - ext4_handle_error(sb, false); + ext4_handle_error(sb, false, EFSCORRUPTED, ino, block, function, line); /* * We only get here in the ERRORS_RO case; relocking the group * may be dangerous, but nothing bad will happen since the