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[XFS] Fix sparse warning in xlog_recover_do_efd_trans. 

Sparse trips over the locking order in xlog_recover_do_efd_trans() when
xfs_trans_delete_ail() drops the ail lock. Because the unlock is
conditional, we need to either annotate with a "fake unlock" or change the
structure of the code so sparse thinks the function always unlocks.

Reordering the code makes it simpler, so do that.

SGI-PV: 972755
SGI-Modid: xfs-linux-melb:xfs-kern:30003a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
David Chinner 2007-11-23 16:28:17 +11:00 committed by Lachlan McIlroy
parent a8272ce0c1
commit 8ae2c0f64a
1 changed files with 3 additions and 11 deletions
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14
fs/xfs/xfs_log_recover.c
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@ -2733,21 +2733,13 @@ xlog_recover_do_efd_trans(
* AIL lock.
*/
xfs_trans_delete_ail(mp, lip);
break;
xfs_efi_item_free(efip);
return;
}
}
lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
}
/*
* If we found it, then free it up. If it wasn't there, it
* must have been overwritten in the log. Oh well.
*/
if (lip != NULL) {
xfs_efi_item_free(efip);
} else {
spin_unlock(&mp->m_ail_lock);
}
spin_unlock(&mp->m_ail_lock);
}
/*