- Clean-up comments that refer to the use of B_LOCKED.

4 files changed, 8 insertions, 6 deletions

diff --git a/sys/gnu/ext2fs/ext2_vfsops.c b/sys/gnu/ext2fs/ext2_vfsops.c
index b5369f4..a51d393 100644
--- a/sys/gnu/ext2fs/ext2_vfsops.c
+++ b/sys/gnu/ext2fs/ext2_vfsops.c
@@ -488,7 +488,6 @@ static int compute_sb_data(devvp, es, fs)
 	    printf("EXT2-fs: unable to read group descriptors (%d)\n", error);
 	    return EIO;
 	}
-	/* Set the B_LOCKED flag on the buffer, then brelse() it */
 	LCK_BUF(fs->s_group_desc[i])
     }
     if(!ext2_check_descriptors(fs)) {
diff --git a/sys/gnu/ext2fs/fs.h b/sys/gnu/ext2fs/fs.h
index c54f979..a14f28c 100644
--- a/sys/gnu/ext2fs/fs.h
+++ b/sys/gnu/ext2fs/fs.h
@@ -153,8 +153,10 @@ extern u_char *fragtbl[];
 #define  unlock_super(devvp) 	VOP_UNLOCK(devvp, 0, curthread)
 
 /*
- * To lock a buffer, set the B_LOCKED flag and then brelse() it. To unlock,
- * reset the B_LOCKED flag and brelse() the buffer back on the LRU list
+ * Historically, ext2fs kept it's metadata buffers on the LOCKED queue.  Now,
+ * we simply change the lock owner to kern so that it may be released from
+ * another context.  Later, we release the buffer, and conditionally write it
+ * when we're done.
  */
 #define LCK_BUF(bp)	BUF_KERNPROC(bp);
 
diff --git a/sys/gnu/fs/ext2fs/ext2_vfsops.c b/sys/gnu/fs/ext2fs/ext2_vfsops.c
index b5369f4..a51d393 100644
--- a/sys/gnu/fs/ext2fs/ext2_vfsops.c
+++ b/sys/gnu/fs/ext2fs/ext2_vfsops.c
@@ -488,7 +488,6 @@ static int compute_sb_data(devvp, es, fs)
 	    printf("EXT2-fs: unable to read group descriptors (%d)\n", error);
 	    return EIO;
 	}
-	/* Set the B_LOCKED flag on the buffer, then brelse() it */
 	LCK_BUF(fs->s_group_desc[i])
     }
     if(!ext2_check_descriptors(fs)) {
diff --git a/sys/gnu/fs/ext2fs/fs.h b/sys/gnu/fs/ext2fs/fs.h
index c54f979..a14f28c 100644
--- a/sys/gnu/fs/ext2fs/fs.h
+++ b/sys/gnu/fs/ext2fs/fs.h
@@ -153,8 +153,10 @@ extern u_char *fragtbl[];
 #define  unlock_super(devvp) 	VOP_UNLOCK(devvp, 0, curthread)
 
 /*
- * To lock a buffer, set the B_LOCKED flag and then brelse() it. To unlock,
- * reset the B_LOCKED flag and brelse() the buffer back on the LRU list
+ * Historically, ext2fs kept it's metadata buffers on the LOCKED queue.  Now,
+ * we simply change the lock owner to kern so that it may be released from
+ * another context.  Later, we release the buffer, and conditionally write it
+ * when we're done.
  */
 #define LCK_BUF(bp)	BUF_KERNPROC(bp);