code: mafs

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updated document

--- a/dat.h

+++ b/dat.h

@@ -181,7 +181,7 @@

 };

 struct Indirect

 {

-	u8 tagi;

+	u8 tagi;	/* the suffix i to avoid union complaining about ambiguous fields */

 	u8 veri;

 	u8 pad[6];	/* unused, to align to a multiple of 8 */

 	u64 dblkno;	/* block number of the directory entry */

--- a/docs/mafs.ms

+++ b/docs/mafs.ms

@@ -208,7 +208,7 @@

 };

 struct Indirect

 {

-	u8 tag;

+	u8 tagi;	/* the suffix i to avoid union complaining about ambiguous fields */

 	u8 veri;

 	u8 pad[6];	/* unused, to align to a multiple of 8 */

 	u64 dblkno;	/* block number of the directory entry */

@@ -694,6 +694,8 @@

 	u8 *append;		/* appended data added not yet written to disk */

 	u64 appendsize;

 	u8 freshalloc;	/* uninitialized blocks on the disk */

+	u64 atime;		/* to find old buffers to flush to the disk */

+	u8 tag;

 };

 .fi

 .sp

@@ -795,6 +797,9 @@

 	u8 nlru;		/* number of items in the lru linked list */

 	Extent *lru;	/* least recently used extent in the circular lru linked list */

+	char name[32];

+

+	void (*flush)(void);

 };

 .fi

 .sp