diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2018-02-19 05:45:18 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-02-19 05:45:18 +0100 |
| commit | fb7c02445c497943e7296cd3deee04422b63acb8 (patch) | |
| tree | a324e598b3ad8c07e0f9d94b48389094cd2f298a /fs/jbd2 | |
| parent | ext4: eliminate sleep from shutdown ioctl (diff) | |
| download | linux-fb7c02445c497943e7296cd3deee04422b63acb8.tar.xz linux-fb7c02445c497943e7296cd3deee04422b63acb8.zip | |
ext4: pass -ESHUTDOWN code to jbd2 layer
Previously the jbd2 layer assumed that a file system check would be
required after a journal abort. In the case of the deliberate file
system shutdown, this should not be necessary. Allow the jbd2 layer
to distinguish between these two cases by using the ESHUTDOWN errno.
Also add proper locking to __journal_abort_soft().
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Diffstat (limited to 'fs/jbd2')
| -rw-r--r-- | fs/jbd2/journal.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 3fbf48ec2188..efa0c72a0b9f 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1483,12 +1483,15 @@ static void jbd2_mark_journal_empty(journal_t *journal, int write_op) void jbd2_journal_update_sb_errno(journal_t *journal) { journal_superblock_t *sb = journal->j_superblock; + int errcode; read_lock(&journal->j_state_lock); - jbd_debug(1, "JBD2: updating superblock error (errno %d)\n", - journal->j_errno); - sb->s_errno = cpu_to_be32(journal->j_errno); + errcode = journal->j_errno; read_unlock(&journal->j_state_lock); + if (errcode == -ESHUTDOWN) + errcode = 0; + jbd_debug(1, "JBD2: updating superblock error (errno %d)\n", errcode); + sb->s_errno = cpu_to_be32(errcode); jbd2_write_superblock(journal, REQ_SYNC | REQ_FUA); } @@ -2105,12 +2108,22 @@ void __jbd2_journal_abort_hard(journal_t *journal) * but don't do any other IO. */ static void __journal_abort_soft (journal_t *journal, int errno) { - if (journal->j_flags & JBD2_ABORT) - return; + int old_errno; - if (!journal->j_errno) + write_lock(&journal->j_state_lock); + old_errno = journal->j_errno; + if (!journal->j_errno || errno == -ESHUTDOWN) journal->j_errno = errno; + if (journal->j_flags & JBD2_ABORT) { + write_unlock(&journal->j_state_lock); + if (!old_errno && old_errno != -ESHUTDOWN && + errno == -ESHUTDOWN) + jbd2_journal_update_sb_errno(journal); + return; + } + write_unlock(&journal->j_state_lock); + __jbd2_journal_abort_hard(journal); if (errno) { |