ext4: don't call jbd2_journal_force_commit_nested without journal

Running without a journal, I oopsed when I ran out of space,
because we called jbd2_journal_force_commit_nested() from
ext4_should_retry_alloc() without a journal.

This should take care of it, I think.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 9a50b80..de9459b 100644 (file)
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -609,7 +609,9 @@ int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
  */
 int ext4_should_retry_alloc(struct super_block *sb, int *retries)
 {
-       if (!ext4_has_free_blocks(EXT4_SB(sb), 1) || (*retries)++ > 3)
+       if (!ext4_has_free_blocks(EXT4_SB(sb), 1) ||
+           (*retries)++ > 3 ||
+           !EXT4_SB(sb)->s_journal)
                return 0;
 
        jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 51cdd13..c7fed5b 100644 (file)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2544,7 +2544,7 @@ retry:
 
                ext4_journal_stop(handle);
 
-               if (mpd.retval == -ENOSPC) {
+               if ((mpd.retval == -ENOSPC) && sbi->s_journal) {
                        /* commit the transaction which would
                         * free blocks released in the transaction
                         * and try again