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A couple jfs bug fixes for 3.10-rc5

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Merge tag 'jfs-3.10-rc5' of git://github.com/kleikamp/linux-shaggy

Pull jfs bugfixes from David Kleikamp:
 "A couple jfs bug fixes for 3.10-rc5"

* tag 'jfs-3.10-rc5' of git://github.com/kleikamp/linux-shaggy:
  fs/jfs: Add check if journaling to disk has been disabled in lbmRead()
  jfs: Several bugs in jfs_freeze() and jfs_unfreeze()
This commit is contained in:
Linus Torvalds 2013-06-04 06:33:44 +09:00
commit 0ab60871b4
2 changed files with 37 additions and 9 deletions
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8
fs/jfs/jfs_logmgr.c
View file

@ -2009,7 +2009,13 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
bio->bi_end_io = lbmIODone;
bio->bi_private = bp;
submit_bio(READ_SYNC, bio);
/*check if journaling to disk has been disabled*/
if (log->no_integrity) {
bio->bi_size = 0;
lbmIODone(bio, 0);
} else {
submit_bio(READ_SYNC, bio);
}
wait_event(bp->l_ioevent, (bp->l_flag != lbmREAD));

38
fs/jfs/super.c
View file

@ -611,11 +611,28 @@ static int jfs_freeze(struct super_block *sb)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
struct jfs_log *log = sbi->log;
int rc = 0;
if (!(sb->s_flags & MS_RDONLY)) {
txQuiesce(sb);
lmLogShutdown(log);
updateSuper(sb, FM_CLEAN);
rc = lmLogShutdown(log);
if (rc) {
jfs_error(sb, "jfs_freeze: lmLogShutdown failed");
/* let operations fail rather than hang */
txResume(sb);
return rc;
}
rc = updateSuper(sb, FM_CLEAN);
if (rc) {
jfs_err("jfs_freeze: updateSuper failed\n");
/*
* Don't fail here. Everything succeeded except
* marking the superblock clean, so there's really
* no harm in leaving it frozen for now.
*/
}
}
return 0;
}
@ -627,13 +644,18 @@ static int jfs_unfreeze(struct super_block *sb)
int rc = 0;
if (!(sb->s_flags & MS_RDONLY)) {
updateSuper(sb, FM_MOUNT);
if ((rc = lmLogInit(log)))
jfs_err("jfs_unlock failed with return code %d", rc);
else
txResume(sb);
rc = updateSuper(sb, FM_MOUNT);
if (rc) {
jfs_error(sb, "jfs_unfreeze: updateSuper failed");
goto out;
}
rc = lmLogInit(log);
if (rc)
jfs_error(sb, "jfs_unfreeze: lmLogInit failed");
out:
txResume(sb);
}
return 0;
return rc;
}
static struct dentry *jfs_do_mount(struct file_system_type *fs_type,