EXT4_MF_FS_ABORTED flag has practically the same intent as
EXT4_FLAGS_SHUTDOWN flag. The shutdown flag is checked in many more
places than the aborted flag which is mostly the historical artifact
where we were relying on SB_RDONLY checks instead of the aborted flag
checks. There are only three places - ext4_sync_file(),
__ext4_remount(), and mballoc debug code - which check aborted flag and
not shutdown flag and this is arguably a bug. Avoid these
inconsistencies by removing EXT4_MF_FS_ABORTED flag and using
EXT4_FLAGS_SHUTDOWN everywhere.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230616165109.21695-5-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
*/
enum {
EXT4_MF_MNTDIR_SAMPLED,
- EXT4_MF_FS_ABORTED, /* Fatal error detected */
EXT4_MF_FC_INELIGIBLE /* Fast commit ineligible */
};
int ret = 0, err;
bool needs_barrier = false;
struct inode *inode = file->f_mapping->host;
- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
if (unlikely(ext4_forced_shutdown(inode->i_sb)))
return -EIO;
trace_ext4_sync_file_enter(file, datasync);
if (sb_rdonly(inode->i_sb)) {
- /* Make sure that we read updated s_mount_flags value */
+ /* Make sure that we read updated s_ext4_flags value */
smp_rmb();
- if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FS_ABORTED))
+ if (ext4_forced_shutdown(inode->i_sb))
ret = -EROFS;
goto out;
}
- if (!sbi->s_journal) {
+ if (!EXT4_SB(inode->i_sb)->s_journal) {
ret = ext4_fsync_nojournal(file, start, end, datasync,
&needs_barrier);
if (needs_barrier)
if (err < 0) {
struct super_block *sb = inode->i_sb;
- if (ext4_forced_shutdown(sb) ||
- ext4_test_mount_flag(sb, EXT4_MF_FS_ABORTED))
+ if (ext4_forced_shutdown(sb))
goto invalidate_dirty_pages;
/*
* Let the uper layers retry transient errors.
* If the filesystem has aborted, it is read-only, so return
* right away instead of dumping stack traces later on that
* will obscure the real source of the problem. We test
- * EXT4_MF_FS_ABORTED instead of sb->s_flag's SB_RDONLY because
+ * fs shutdown state instead of sb->s_flag's SB_RDONLY because
* the latter could be true if the filesystem is mounted
* read-only, and in that case, ext4_writepages should
* *never* be called, so if that ever happens, we would want
* the stack trace.
*/
- if (unlikely(ext4_forced_shutdown(mapping->host->i_sb) ||
- ext4_test_mount_flag(inode->i_sb, EXT4_MF_FS_ABORTED))) {
+ if (unlikely(ext4_forced_shutdown(mapping->host->i_sb))) {
ret = -EROFS;
goto out_writepages;
}
{
ext4_group_t i, ngroups;
- if (ext4_test_mount_flag(sb, EXT4_MF_FS_ABORTED))
+ if (ext4_forced_shutdown(sb))
return;
ngroups = ext4_get_groups_count(sb);
{
struct super_block *sb = ac->ac_sb;
- if (ext4_test_mount_flag(sb, EXT4_MF_FS_ABORTED))
+ if (ext4_forced_shutdown(sb))
return;
mb_debug(sb, "Can't allocate:"
WARN_ON_ONCE(1);
if (!continue_fs && !sb_rdonly(sb)) {
- ext4_set_mount_flag(sb, EXT4_MF_FS_ABORTED);
+ set_bit(EXT4_FLAGS_SHUTDOWN, &EXT4_SB(sb)->s_ext4_flags);
if (journal)
jbd2_journal_abort(journal, -EIO);
}
flush_work(&sbi->s_error_work);
if ((bool)(fc->sb_flags & SB_RDONLY) != sb_rdonly(sb)) {
- if (ext4_test_mount_flag(sb, EXT4_MF_FS_ABORTED)) {
+ if (ext4_forced_shutdown(sb)) {
err = -EROFS;
goto restore_opts;
}