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| author | Jan Kara <jack@suse.cz> | 2020-11-27 12:33:54 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-12-17 13:30:55 -0500 |
| commit | b08070eca9e247f60ab39d79b2c25d274750441f (patch) | |
| tree | 2eb9f983364b0c71b29d8cd1778f057fb8ce58e3 /fs/ext4 | |
| parent | 46e294efc355c48d1dd4d58501aa56dac461792a (diff) | |
| download | linux-b08070eca9e247f60ab39d79b2c25d274750441f.tar.bz2 | |
ext4: don't remount read-only with errors=continue on reboot
ext4_handle_error() with errors=continue mount option can accidentally
remount the filesystem read-only when the system is rebooting. Fix that.
Fixes: 1dc1097ff60e ("ext4: avoid panic during forced reboot")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20201127113405.26867-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/super.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 872d45a131ca..3ef84e8ab1ae 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -666,19 +666,17 @@ static bool system_going_down(void) static void ext4_handle_error(struct super_block *sb) { + journal_t *journal = EXT4_SB(sb)->s_journal; + if (test_opt(sb, WARN_ON_ERROR)) WARN_ON_ONCE(1); - if (sb_rdonly(sb)) + if (sb_rdonly(sb) || test_opt(sb, ERRORS_CONT)) return; - if (!test_opt(sb, ERRORS_CONT)) { - journal_t *journal = EXT4_SB(sb)->s_journal; - - ext4_set_mount_flag(sb, EXT4_MF_FS_ABORTED); - if (journal) - jbd2_journal_abort(journal, -EIO); - } + ext4_set_mount_flag(sb, EXT4_MF_FS_ABORTED); + if (journal) + jbd2_journal_abort(journal, -EIO); /* * We force ERRORS_RO behavior when system is rebooting. Otherwise we * could panic during 'reboot -f' as the underlying device got already |