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authorDavid Chinner <dgc@sgi.com>2007-11-23 16:28:17 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-02-07 18:15:29 +1100
commit8ae2c0f64a81a93d2c394eacee29d6ced53b54f9 (patch)
tree6a28f5609daaaa7e8b069323c9a19e9cd87772c4 /fs/xfs/xfs_log_recover.c
parenta8272ce0c1d49aa3bec57682678f0bdfe28ed4ca (diff)
downloadlinux-8ae2c0f64a81a93d2c394eacee29d6ced53b54f9.tar.gz
[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>
Diffstat (limited to 'fs/xfs/xfs_log_recover.c')
-rw-r--r--fs/xfs/xfs_log_recover.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 3b804b93b282..071672969421 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -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);
 }
 
 /*