Merge http://jfs.bkbits.net/linux-2.5

into home.osdl.org:/home/torvalds/v2.5/linux

Documentation/filesystems/jfs.txt

@@ -23,6 +23,15 @@ resize=value	Resize the volume to <value> blocks.  JFS only supports
 		read-write.  The resize keyword with no value will grow
 		the volume to the full size of the partition.
 
+nointegrity	Do not write to the journal.  The primary use of this option
+		is to allow for higher performance when restoring a volume
+		from backup media.  The integrity of the volume is not
+		guaranteed if the system abnormally abends.
+
+integrity	Default.  Commit metadata changes to the journal.  Use this
+		option to remount a volume where the nointegrity option was
+		previously specified in order to restore normal behavior.
+
 JFS TODO list:
 
 Plans for our near term development items

fs/jfs/inode.c

@@ -259,7 +259,7 @@ jfs_get_blocks(struct inode *ip, sector_t lblock, unsigned long max_blocks,
 		else
 			IREAD_UNLOCK(ip);
 	}
-	return -rc;
+	return rc;
 }
 
 static int jfs_get_block(struct inode *ip, sector_t lblock,

fs/jfs/jfs_btree.h

@@ -81,7 +81,7 @@ struct btpage {
 		} else {\
 			P = NULL;\
 			jfs_err("bread failed!");\
-			RC = EIO;\
+			RC = -EIO;\
 		}\
 	}\
 }

fs/jfs/jfs_dmap.c

@@ -188,8 +188,8 @@ signed char budtab[256] = {
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOMEM	- insufficient memory
- *      EIO	- i/o error
+ *      -ENOMEM	- insufficient memory
+ *      -EIO	- i/o error
  */
 int dbMount(struct inode *ipbmap)
 {
@@ -204,7 +204,7 @@ int dbMount(struct inode *ipbmap)
 	/* allocate memory for the in-memory bmap descriptor */
 	bmp = kmalloc(sizeof(struct bmap), GFP_KERNEL);
 	if (bmp == NULL)
-		return (ENOMEM);
+		return -ENOMEM;
 
 	/* read the on-disk bmap descriptor. */
 	mp = read_metapage(ipbmap,
@@ -212,7 +212,7 @@ int dbMount(struct inode *ipbmap)
 			   PSIZE, 0);
 	if (mp == NULL) {
 		kfree(bmp);
-		return (EIO);
+		return -EIO;
 	}
 
 	/* copy the on-disk bmap descriptor to its in-memory version. */
@@ -267,7 +267,7 @@ int dbMount(struct inode *ipbmap)
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  */
 int dbUnmount(struct inode *ipbmap, int mounterror)
 {
@@ -315,7 +315,7 @@ int dbSync(struct inode *ipbmap)
 			   PSIZE, 0);
 	if (mp == NULL) {
 		jfs_err("dbSync: read_metapage failed!");
-		return (EIO);
+		return -EIO;
 	}
 	/* copy the in-memory version of the bmap to the on-disk version */
 	dbmp_le = (struct dbmap *) mp->data;
@@ -368,7 +368,7 @@ int dbSync(struct inode *ipbmap)
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  */
 int dbFree(struct inode *ip, s64 blkno, s64 nblocks)
 {
@@ -399,7 +399,7 @@ int dbFree(struct inode *ip, s64 blkno, s64 nblocks)
 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL) {
 			IREAD_UNLOCK(ipbmap);
-			return (EIO);
+			return -EIO;
 		}
 		dp = (struct dmap *) mp->data;
 
@@ -448,7 +448,7 @@ int dbFree(struct inode *ip, s64 blkno, s64 nblocks)
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  */
 int
 dbUpdatePMap(struct inode *ipbmap,
@@ -488,7 +488,7 @@ dbUpdatePMap(struct inode *ipbmap,
 			mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE,
 					   0);
 			if (mp == NULL)
-				return (EIO);
+				return -EIO;
 		}
 		dp = (struct dmap *) mp->data;
 
@@ -721,8 +721,8 @@ int dbNextAG(struct inode *ipbmap)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  */
 int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 {
@@ -742,7 +742,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 #ifdef _STILL_TO_PORT
 	/* DASD limit check                                     F226941 */
 	if (OVER_LIMIT(ip, nblocks))
-		return ENOSPC;
+		return -ENOSPC;
 #endif				/* _STILL_TO_PORT */
 
 	/* get the log2 number of blocks to be allocated.
@@ -812,7 +812,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 
 		/* get the buffer for the dmap containing the hint.
 		 */
-		rc = EIO;
+		rc = -EIO;
 		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL)
@@ -824,7 +824,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 		 * blocks beginning at the hint.
 		 */
 		if ((rc = dbAllocNext(bmp, dp, blkno, (int) nblocks))
-		    != ENOSPC) {
+		    != -ENOSPC) {
 			if (rc == 0) {
 				*results = blkno;
 				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
@@ -853,7 +853,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 		 */
 		if ((rc =
 		     dbAllocNear(bmp, dp, blkno, (int) nblocks, l2nb, results))
-		    != ENOSPC) {
+		    != -ENOSPC) {
 			if (rc == 0) {
 				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
 					*results, nblocks);
@@ -868,7 +868,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 		 * the same dmap as the hint.
 		 */
 		if ((rc = dbAllocDmapLev(bmp, dp, (int) nblocks, l2nb, results))
-		    != ENOSPC) {
+		    != -ENOSPC) {
 			if (rc == 0) {
 				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
 					*results, nblocks);
@@ -888,7 +888,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 	 */
 	IWRITE_LOCK(ipbmap);
 	if ((rc = dbAllocAG(bmp, agno, nblocks, l2nb, results))
-	    != ENOSPC) {
+	    != -ENOSPC) {
 		if (rc == 0)
 			DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
 				*results, nblocks);
@@ -907,7 +907,7 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
 	/* Try to allocate within this allocation group.  if that fails, try to
 	 * allocate anywhere in the map.
 	 */
-	if ((rc = dbAllocAG(bmp, agno, nblocks, l2nb, results)) == ENOSPC)
+	if ((rc = dbAllocAG(bmp, agno, nblocks, l2nb, results)) == -ENOSPC)
 		rc = dbAllocAny(bmp, nblocks, l2nb, results);
 	if (rc == 0) {
 		DBALLOC(bmp->db_DBmap, bmp->db_mapsize, *results, nblocks);
@@ -937,8 +937,8 @@ int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  */
 int dbAllocExact(struct inode *ip, s64 blkno, int nblocks)
 {
@@ -960,13 +960,13 @@ int dbAllocExact(struct inode *ip, s64 blkno, int nblocks)
 	 */
 	if (nblocks <= 0 || nblocks > BPERDMAP || blkno >= bmp->db_mapsize) {
 		IREAD_UNLOCK(ipbmap);
-		return EINVAL;
+		return -EINVAL;
 	}
 
 	if (nblocks > ((s64) 1 << bmp->db_maxfreebud)) {
 		/* the free space is no longer available */
 		IREAD_UNLOCK(ipbmap);
-		return ENOSPC;
+		return -ENOSPC;
 	}
 
 	/* read in the dmap covering the extent */
@@ -974,7 +974,7 @@ int dbAllocExact(struct inode *ip, s64 blkno, int nblocks)
 	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
 	if (mp == NULL) {
 		IREAD_UNLOCK(ipbmap);
-		return (EIO);
+		return -EIO;
 	}
 	dp = (struct dmap *) mp->data;
 
@@ -1022,8 +1022,8 @@ int dbAllocExact(struct inode *ip, s64 blkno, int nblocks)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  */
 int
 dbReAlloc(struct inode *ip,
@@ -1037,7 +1037,7 @@ dbReAlloc(struct inode *ip,
 		*results = blkno;
 		return (0);
 	} else {
-		if (rc != ENOSPC)
+		if (rc != -ENOSPC)
 			return (rc);
 	}
 
@@ -1071,8 +1071,8 @@ dbReAlloc(struct inode *ip,
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  */
 int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
 {
@@ -1090,7 +1090,7 @@ int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
 	 */
 	if (((rel_block = blkno & (sbi->nbperpage - 1))) &&
 	    (rel_block + nblocks + addnblocks > sbi->nbperpage))
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* get the last block of the current allocation */
 	lastblkno = blkno + nblocks - 1;
@@ -1117,7 +1117,7 @@ int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
 	if (addnblocks > BPERDMAP || extblkno >= bmp->db_mapsize ||
 	    (extblkno & (bmp->db_agsize - 1)) == 0) {
 		IREAD_UNLOCK(ipbmap);
-		return (ENOSPC);
+		return -ENOSPC;
 	}
 
 	/* get the buffer for the dmap containing the first block
@@ -1127,7 +1127,7 @@ int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
 	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
 	if (mp == NULL) {
 		IREAD_UNLOCK(ipbmap);
-		return (EIO);
+		return -EIO;
 	}
 
 	DBALLOCCK(bmp->db_DBmap, bmp->db_mapsize, blkno, nblocks);
@@ -1148,7 +1148,7 @@ int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
 	} else {
 		/* we were not successful */
 		release_metapage(mp);
-		assert(rc == ENOSPC || rc == EIO);
+		assert(rc == -ENOSPC || rc == -EIO);
 	}
 
 	return (rc);
@@ -1169,8 +1169,8 @@ int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap) held on entry/exit;
  */
@@ -1196,13 +1196,13 @@ static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
 	 * this dmap.
 	 */
 	if (dbitno + nblocks > BPERDMAP)
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* check if the starting leaf indicates that anything
 	 * is free.
 	 */
 	if (leaf[word] == NOFREE)
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* check the dmaps words corresponding to block range to see
 	 * if the block range is free.  not all bits of the first and
@@ -1231,7 +1231,7 @@ static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
 			 */
 			mask = (ONES << (DBWORD - nb) >> wbitno);
 			if ((mask & ~le32_to_cpu(dp->wmap[word])) != mask)
-				return (ENOSPC);
+				return -ENOSPC;
 
 			word += 1;
 		} else {
@@ -1249,7 +1249,7 @@ static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
 				/* does the leaf describe any free space ?
 				 */
 				if (leaf[word] < BUDMIN)
-					return (ENOSPC);
+					return -ENOSPC;
 
 				/* determine the l2 number of bits provided
 				 * by this leaf.
@@ -1295,8 +1295,8 @@ static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap) held on entry/exit;
  */
@@ -1344,7 +1344,7 @@ dbAllocNear(struct bmap * bmp,
 		return (rc);
 	}
 
-	return (ENOSPC);
+	return -ENOSPC;
 }
 
 
@@ -1397,8 +1397,8 @@ dbAllocNear(struct bmap * bmp,
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * note: IWRITE_LOCK(ipmap) held on entry/exit;
  */
@@ -1441,8 +1441,8 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 	if (bmp->db_agsize == BPERDMAP
 	    || bmp->db_agfree[agno] == bmp->db_agsize) {
 		rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
-		/* assert(!(rc == ENOSPC && bmp->db_agfree[agno] == bmp->db_agsize)); */
-		if ((rc == ENOSPC) &&
+		/* assert(!(rc == -ENOSPC && bmp->db_agfree[agno] == bmp->db_agsize)); */
+		if ((rc == -ENOSPC) &&
 		    (bmp->db_agfree[agno] == bmp->db_agsize)) {
 			jfs_err("dbAllocAG: removed assert, but still need to "
 				"debug here\nblkno = 0x%Lx, nblocks = 0x%Lx",
@@ -1458,7 +1458,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 	lblkno = BLKTOCTL(blkno, bmp->db_l2nbperpage, bmp->db_aglevel);
 	mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
 	if (mp == NULL)
-		return (EIO);
+		return -EIO;
 	dcp = (struct dmapctl *) mp->data;
 	budmin = dcp->budmin;
 
@@ -1531,7 +1531,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 			if ((rc =
 			     dbFindCtl(bmp, l2nb, bmp->db_aglevel - 1,
 				       &blkno))) {
-				assert(rc != ENOSPC);
+				assert(rc != -ENOSPC);
 				return (rc);
 			}
 		}
@@ -1539,16 +1539,16 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
 		/* allocate the blocks.
 		 */
 		rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
-		assert(rc != ENOSPC);
+		assert(rc != -ENOSPC);
 		return (rc);
 	}
 
 	/* no space in the allocation group.  release the buffer and
-	 * return ENOSPC.
+	 * return -ENOSPC.
 	 */
 	release_metapage(mp);
 
-	return (ENOSPC);
+	return -ENOSPC;
 }
 
 
@@ -1573,8 +1573,8 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -1595,7 +1595,7 @@ static int dbAllocAny(struct bmap * bmp, s64 nblocks, int l2nb, s64 * results)
 	/* allocate the blocks.
 	 */
 	rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
-	assert(rc != ENOSPC);
+	assert(rc != -ENOSPC);
 	return (rc);
 }
 
@@ -1623,8 +1623,8 @@ static int dbAllocAny(struct bmap * bmp, s64 nblocks, int l2nb, s64 * results)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -1648,7 +1648,7 @@ static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
 		lblkno = BLKTOCTL(b, bmp->db_l2nbperpage, lev);
 		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL)
-			return (EIO);
+			return -EIO;
 		dcp = (struct dmapctl *) mp->data;
 		budmin = dcp->budmin;
 
@@ -1667,7 +1667,7 @@ static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
 		 */
 		if (rc) {
 			assert(lev == level);
-			return (ENOSPC);
+			return -ENOSPC;
 		}
 
 		/* adjust the block number to reflect the location within
@@ -1730,8 +1730,8 @@ static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -1751,7 +1751,7 @@ dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno, s64 * results)
 		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
 		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL)
-			return (EIO);
+			return -EIO;
 		dp = (struct dmap *) mp->data;
 
 		/* try to allocate the blocks.
@@ -1778,7 +1778,7 @@ dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno, s64 * results)
 		lblkno = BLKTODMAP(b, bmp->db_l2nbperpage);
 		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL) {
-			rc = EIO;
+			rc = -EIO;
 			goto backout;
 		}
 		dp = (struct dmap *) mp->data;
@@ -1875,8 +1875,8 @@ dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno, s64 * results)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient disk resources
- *      EIO	- i/o error
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap), e.g., from dbAlloc(), or 
  *	IWRITE_LOCK(ipbmap), e.g., dbAllocCtl(), held on entry/exit;
@@ -1896,7 +1896,7 @@ dbAllocDmapLev(struct bmap * bmp,
 	 * returns the index of the leaf at which free space was found.
 	 */
 	if (dbFindLeaf((dmtree_t *) & dp->tree, l2nb, &leafidx))
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* determine the block number within the file system corresponding
 	 * to the leaf at which free space was found.
@@ -1941,7 +1941,7 @@ dbAllocDmapLev(struct bmap * bmp,
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -1996,7 +1996,7 @@ static int dbAllocDmap(struct bmap * bmp, struct dmap * dp, s64 blkno,
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -2376,7 +2376,7 @@ static void dbFreeBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  *
  * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
  */
@@ -2396,7 +2396,7 @@ dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc, int level)
 	lblkno = BLKTOCTL(blkno, bmp->db_l2nbperpage, level);
 	mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
 	if (mp == NULL)
-		return (EIO);
+		return -EIO;
 	dcp = (struct dmapctl *) mp->data;
 
 	/* determine the leaf number corresponding to the block and
@@ -2819,7 +2819,7 @@ static void dbAdjTree(dmtree_t * tp, int leafno, int newval)
  *
  * RETURN VALUES:
  *      0	- success
- *      ENOSPC	- insufficient free blocks. 
+ *      -ENOSPC	- insufficient free blocks. 
  */
 static int dbFindLeaf(dmtree_t * tp, int l2nb, int *leafidx)
 {
@@ -2829,7 +2829,7 @@ static int dbFindLeaf(dmtree_t * tp, int l2nb, int *leafidx)
 	 * sufficient free space.
 	 */
 	if (l2nb > tp->dmt_stree[ROOT])
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* sufficient free space available. now search down the tree
 	 * starting at the next level for the leftmost leaf that
@@ -3073,7 +3073,7 @@ void fsDirty(void)
  *
  * RETURN VALUES:
  *      0	- success
- *      EIO	- i/o error
+ *      -EIO	- i/o error
  */
 int dbAllocBottomUp(struct inode *ip, s64 blkno, s64 nblocks)
 {
@@ -3104,7 +3104,7 @@ int dbAllocBottomUp(struct inode *ip, s64 blkno, s64 nblocks)
 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
 		if (mp == NULL) {
 			IREAD_UNLOCK(ipbmap);
-			return (EIO);
+			return -EIO;
 		}
 		dp = (struct dmap *) mp->data;
 
@@ -3514,7 +3514,7 @@ int dbExtendFS(struct inode *ipbmap, s64 blkno,	s64 nblocks)
 	return 0;
 
       errout:
-	return EIO;
+	return -EIO;
 }
 
 

fs/jfs/jfs_dtree.c

@@ -134,7 +134,7 @@ struct dtsplit {
 			BT_PUTPAGE(MP);\
 			updateSuper((IP)->i_sb, FM_DIRTY);\
 			MP = NULL;\
-			RC = EIO;\
+			RC = -EIO;\
 		}\
 	}\
 }
@@ -404,7 +404,7 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 		     xtInsert(tid, ip, 0, 0, sbi->nbperpage,
 			      &xaddr, 0))) {
 			jfs_warn("add_index: xtInsert failed!");
-			return -1;
+			return -EPERM;
 		}
 		ip->i_size = PSIZE;
 		ip->i_blocks += LBLK2PBLK(sb, sbi->nbperpage);
@@ -412,7 +412,7 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 		if ((mp = get_index_page(ip, 0)) == 0) {
 			jfs_err("add_index: get_metapage failed!");
 			xtTruncate(tid, ip, 0, COMMIT_PWMAP);
-			return -1;
+			return -EPERM;
 		}
 		tlck = txLock(tid, ip, mp, tlckDATA);
 		llck = (struct linelock *) & tlck->lock;
@@ -447,7 +447,7 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 			      &xaddr, 0))) {
 			jfs_warn("add_index: xtInsert failed!");
 			jfs_ip->next_index--;
-			return -1;
+			return -EPERM;
 		}
 		ip->i_size += PSIZE;
 		ip->i_blocks += LBLK2PBLK(sb, sbi->nbperpage);
@@ -461,7 +461,7 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
 
 	if (mp == 0) {
 		jfs_err("add_index: get/read_metapage failed!");
-		return -1;
+		return -EPERM;
 	}
 
 	lock_index(tid, ip, mp, index);
@@ -588,7 +588,7 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
 	    (wchar_t *) kmalloc((JFS_NAME_MAX + 1) * sizeof(wchar_t),
 				GFP_NOFS);
 	if (ciKey.name == 0) {
-		rc = ENOMEM;
+		rc = -ENOMEM;
 		goto dtSearch_Exit2;
 	}
 
@@ -674,7 +674,7 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
 					 */
 					if (flag == JFS_CREATE) {
 						*data = inumber;
-						rc = EEXIST;
+						rc = -EEXIST;
 						goto out;
 					}
 
@@ -684,7 +684,7 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
 					if ((flag == JFS_REMOVE ||
 					     flag == JFS_RENAME) &&
 					    *data != inumber) {
-						rc = ESTALE;
+						rc = -ESTALE;
 						goto out;
 					}
 
@@ -732,7 +732,7 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
 			 */
 			if (flag == JFS_LOOKUP || flag == JFS_REMOVE ||
 			    flag == JFS_RENAME) {
-				rc = ENOENT;
+				rc = -ENOENT;
 				goto out;
 			}
 
@@ -770,7 +770,7 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
 			 */
 			jfs_err("stack overrun in dtSearch!");
 			updateSuper(sb, FM_DIRTY);
-			rc = EIO;
+			rc = -EIO;
 			goto out;
 		}
 		btstack->nsplit++;
@@ -840,7 +840,7 @@ int dtInsert(tid_t tid, struct inode *ip,
 	if (DO_INDEX(ip)) {
 		if (JFS_IP(ip)->next_index == DIREND) {
 			DT_PUTPAGE(mp);
-			return EMLINK;
+			return -EMLINK;
 		}
 		n = NDTLEAF(name->namlen);
 		data.leaf.tid = tid;
@@ -953,7 +953,7 @@ static int dtSplitUp(tid_t tid,
 				GFP_NOFS);
 	if (key.name == 0) {
 		DT_PUTPAGE(smp);
-		rc = ENOMEM;
+		rc = -ENOMEM;
 		goto dtSplitUp_Exit;
 	}
 
@@ -1579,7 +1579,7 @@ static int dtSplitPage(tid_t tid, struct inode *ip, struct dtsplit * split,
 
 	ip->i_blocks += LBLK2PBLK(sb, lengthPXD(pxd));
 
-	return 0;
+	return rc;
 }
 
 
@@ -2628,7 +2628,7 @@ static int dtSearchNode(struct inode *ip, s64 lmxaddr, pxd_t * kpxd,
 		 * descend down to leftmost child page
 		 */
 		if (p->header.flag & BT_LEAF)
-			return ESTALE;
+			return -ESTALE;
 
 		/* get the leftmost entry */
 		stbl = DT_GETSTBL(p);
@@ -2666,7 +2666,7 @@ static int dtSearchNode(struct inode *ip, s64 lmxaddr, pxd_t * kpxd,
 		bn = le64_to_cpu(p->header.next);
 	else {
 		DT_PUTPAGE(mp);
-		return ESTALE;
+		return -ESTALE;
 	}
 
 	/* unpin current page */
@@ -2908,7 +2908,7 @@ static void add_missing_indices(struct inode *inode, s64 bn)
 			d->index = cpu_to_le32(add_index(tid, inode, bn, i));
 			if (dtlck->index >= dtlck->maxcnt)
 				dtlck = (struct dt_lock *) txLinelock(dtlck);
-			lv = dtlck->lv;
+			lv = &dtlck->lv[dtlck->index];
 			lv->offset = stbl[i];
 			lv->length = 1;
 			dtlck->index++;
@@ -3068,7 +3068,7 @@ int jfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 			}
 
 			if ((rc = dtReadFirst(ip, &btstack)))
-				return -rc;
+				return rc;
 
 			DT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
 		}
@@ -3268,7 +3268,7 @@ int jfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 		DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 		if (rc) {
 			free_page(dirent_buf);
-			return -rc;
+			return rc;
 		}
 	}
 
@@ -4434,8 +4434,8 @@ static void dtLinelockFreelist(dtpage_t * p,	/* directory page */
  *	flag	- JFS_RENAME
  *
  * RETURNS:
- *	ESTALE	- If entry found does not match orig_ino passed in
- *	ENOENT	- If no entry can be found to match key
+ *	-ESTALE	- If entry found does not match orig_ino passed in
+ *	-ENOENT	- If no entry can be found to match key
  *	0	- If successfully modified entry
  */
 int dtModify(tid_t tid, struct inode *ip,

fs/jfs/jfs_extent.c

@@ -83,8 +83,8 @@ extern int jfs_commit_inode(struct inode *, int);
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 int
 extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
@@ -207,8 +207,8 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
 {
@@ -350,7 +350,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
+ *      -EIO	- i/o error.
  */
 int extHint(struct inode *ip, s64 offset, xad_t * xp)
 {
@@ -421,8 +421,8 @@ int extHint(struct inode *ip, s64 offset, xad_t * xp)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 int extRecord(struct inode *ip, xad_t * xp)
 {
@@ -436,7 +436,7 @@ int extRecord(struct inode *ip, xad_t * xp)
 	rc = xtUpdate(0, ip, xp);
 
 	up(&JFS_IP(ip)->commit_sem);
-	return (rc);
+	return rc;
 }
 
 
@@ -453,8 +453,8 @@ int extRecord(struct inode *ip, xad_t * xp)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 int extFill(struct inode *ip, xad_t * xp)
 {
@@ -505,8 +505,8 @@ int extFill(struct inode *ip, xad_t * xp)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 static int
 extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
@@ -535,7 +535,7 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
 		/* if something other than an out of space error,
 		 * stop and return this error.
 		 */
-		if (rc != ENOSPC)
+		if (rc != -ENOSPC)
 			return (rc);
 
 		/* decrease the allocation request size */
@@ -596,8 +596,8 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO	- i/o error.
- *      ENOSPC	- insufficient disk resources.
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
  */
 static int
 extBrealloc(struct inode *ip,
@@ -610,7 +610,7 @@ extBrealloc(struct inode *ip,
 		*newblkno = blkno;
 		return (0);
 	} else {
-		if (rc != ENOSPC)
+		if (rc != -ENOSPC)
 			return (rc);
 	}
 

fs/jfs/jfs_filsys.h

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2001
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -29,6 +29,9 @@
 /*
  *	 file system option (superblock flag)
  */
+/* mount time flag to disable journaling to disk */
+#define JFS_NOINTEGRITY 0x00000010
+
 /* platform option (conditional compilation) */
 #define JFS_AIX		0x80000000	/* AIX support */
 /*	POSIX name/directory  support */

fs/jfs/jfs_imap.c

@@ -121,8 +121,8 @@ static void DBGdiFree(struct inomap * imap, ino_t ino);
  *
  * RETURN VALUES:
  *      0       - success
- *      ENOMEM  - insufficient free virtual memory.
- *      EIO  	- i/o error.
+ *      -ENOMEM  - insufficient free virtual memory.
+ *      -EIO  	- i/o error.
  */
 int diMount(struct inode *ipimap)
 {
@@ -138,7 +138,7 @@ int diMount(struct inode *ipimap)
 	imap = (struct inomap *) kmalloc(sizeof(struct inomap), GFP_KERNEL);
 	if (imap == NULL) {
 		jfs_err("diMount: kmalloc returned NULL!");
-		return (ENOMEM);
+		return -ENOMEM;
 	}
 
 	/* read the on-disk inode map control structure. */
@@ -148,7 +148,7 @@ int diMount(struct inode *ipimap)
 			   PSIZE, 0);
 	if (mp == NULL) {
 		kfree(imap);
-		return (EIO);
+		return -EIO;
 	}
 
 	/* copy the on-disk version to the in-memory version. */
@@ -207,8 +207,8 @@ int diMount(struct inode *ipimap)
  *
  * RETURN VALUES:
  *      0       - success
- *      ENOMEM  - insufficient free virtual memory.
- *      EIO  	- i/o error.
+ *      -ENOMEM  - insufficient free virtual memory.
+ *      -EIO  	- i/o error.
  */
 int diUnmount(struct inode *ipimap, int mounterror)
 {
@@ -254,7 +254,7 @@ int diSync(struct inode *ipimap)
 			  PSIZE, 0);
 	if (mp == NULL) {
 		jfs_err("diSync: get_metapage failed!");
-		return EIO;
+		return -EIO;
 	}
 
 	/* copy the in-memory version to the on-disk version */
@@ -320,8 +320,8 @@ int diSync(struct inode *ipimap)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO  	- i/o error.
- *      ENOMEM	- insufficient memory
+ *      -EIO  	- i/o error.
+ *      -ENOMEM	- insufficient memory
  *      
  */
 int diRead(struct inode *ip)
@@ -366,7 +366,7 @@ int diRead(struct inode *ip)
 	if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) ||
 	    (addressPXD(&iagp->inoext[extno]) == 0)) {
 		release_metapage(mp);
-		return ESTALE;
+		return -ESTALE;
 	}
 
 	/* get disk block number of the page within the inode extent
@@ -401,7 +401,7 @@ int diRead(struct inode *ip)
 	mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
 	if (mp == 0) {
 		jfs_err("diRead: read_metapage failed");
-		return EIO;
+		return -EIO;
 	}
 
 	/* locate the the disk inode requested */
@@ -411,9 +411,9 @@ int diRead(struct inode *ip)
 	if (ip->i_ino != le32_to_cpu(dp->di_number)) {
 		jfs_err("diRead: i_ino != di_number");
 		updateSuper(ip->i_sb, FM_DIRTY);
-		rc = EIO;
+		rc = -EIO;
 	} else if (le32_to_cpu(dp->di_nlink) == 0)
-		rc = ESTALE;
+		rc = -ESTALE;
 	else
 		/* copy the disk inode to the in-memory inode */
 		rc = copy_from_dinode(dp, ip);
@@ -612,7 +612,7 @@ void diFreeSpecial(struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO  	- i/o error.
+ *      -EIO  	- i/o error.
  */
 int diWrite(tid_t tid, struct inode *ip)
 {
@@ -671,7 +671,7 @@ int diWrite(tid_t tid, struct inode *ip)
       retry:
 	mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
 	if (mp == 0)
-		return (EIO);
+		return -EIO;
 
 	/* get the pointer to the disk inode */
 	dp = (struct dinode *) mp->data;
@@ -885,7 +885,7 @@ int diWrite(tid_t tid, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success
- *      EIO  	- i/o error.
+ *      -EIO  	- i/o error.
  */
 int diFree(struct inode *ip)
 {
@@ -923,7 +923,7 @@ int diFree(struct inode *ip)
 			(uint) inum, iagno, imap->im_nextiag);
 		dump_mem("imap", imap, 32);
 		updateSuper(ip->i_sb, FM_DIRTY);
-		return EIO;
+		return -EIO;
 	}
 
 	/* get the allocation group for this ino.
@@ -972,7 +972,7 @@ int diFree(struct inode *ip)
 		IREAD_UNLOCK(ipimap);
 		AG_UNLOCK(imap, agno);
 		updateSuper(ip->i_sb, FM_DIRTY);
-		return EIO;
+		return -EIO;
 	}
 	/*
 	 *      inode extent still has some inodes or below low water mark:
@@ -1362,8 +1362,8 @@ diInitInode(struct inode *ip, int iagno, int ino, int extno, struct iag * iagp)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
 {
@@ -1471,7 +1471,7 @@ int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
 				rc = diAllocBit(imap, iagp, ino);
 				IREAD_UNLOCK(ipimap);
 				if (rc) {
-					assert(rc == EIO);
+					assert(rc == -EIO);
 				} else {
 					/* set the results of the allocation
 					 * and write the iag.
@@ -1548,7 +1548,7 @@ int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
 				rc = diAllocBit(imap, iagp, ino);
 				IREAD_UNLOCK(ipimap);
 				if (rc) {
-					assert(rc == EIO);
+					assert(rc == -EIO);
 				} else {
 					/* set the results of the allocation
 					 * and write the iag.
@@ -1584,10 +1584,10 @@ int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
 					 * new extent, try to allocate the
 					 * disk inode from somewhere else.
 					 */
-					if (rc == ENOSPC)
+					if (rc == -ENOSPC)
 						break;
 
-					assert(rc == EIO);
+					assert(rc == -EIO);
 				} else {
 					/* set the results of the allocation
 					 * and write the iag.
@@ -1626,7 +1626,7 @@ int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
 
 	AG_UNLOCK(imap, agno);
 
-	if (rc != ENOSPC)
+	if (rc != -ENOSPC)
 		return (rc);
 
 	/*
@@ -1662,8 +1662,8 @@ int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int
 diAllocAG(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
@@ -1679,7 +1679,7 @@ diAllocAG(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
 	if (numfree > numinos) {
 		jfs_err("diAllocAG: numfree > numinos");
 		updateSuper(ip->i_sb, FM_DIRTY);
-		return EIO;
+		return -EIO;
 	}
 
 	/* determine if we should allocate a new extent of free inodes
@@ -1702,7 +1702,7 @@ diAllocAG(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
 		 * below to allocate a free and existing (already backed)
 		 * inode from the ag.
 		 */
-		if ((rc = diAllocExt(imap, agno, ip)) != ENOSPC)
+		if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC)
 			return (rc);
 	}
 
@@ -1733,8 +1733,8 @@ diAllocAG(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int
 diAllocAny(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
@@ -1753,7 +1753,7 @@ diAllocAny(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
 
 		AG_UNLOCK(imap, ag);
 
-		if (rc != ENOSPC)
+		if (rc != -ENOSPC)
 			return (rc);
 	}
 
@@ -1766,13 +1766,13 @@ diAllocAny(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
 
 		AG_UNLOCK(imap, ag);
 
-		if (rc != ENOSPC)
+		if (rc != -ENOSPC)
 			return (rc);
 	}
 
 	/* no free disk inodes.
 	 */
-	return (ENOSPC);
+	return -ENOSPC;
 }
 
 
@@ -1798,8 +1798,8 @@ diAllocAny(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
 {
@@ -1810,7 +1810,7 @@ static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
 	/* check if there are iags on the ag's free inode list.
 	 */
 	if ((iagno = imap->im_agctl[agno].inofree) < 0)
-		return (ENOSPC);
+		return -ENOSPC;
 
 	/* obtain read lock on imap inode */
 	IREAD_LOCK(imap->im_ipimap);
@@ -1832,7 +1832,7 @@ static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
 		jfs_err("  agno = %d, iagno = %d", agno, iagno);
 		dump_mem("iag", iagp, 64);
 		updateSuper(ip->i_sb, FM_DIRTY);
-		return EIO;
+		return -EIO;
 	}
 
 	/* scan the free inode summary map to find an extent
@@ -1908,8 +1908,8 @@ static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int diAllocExt(struct inomap * imap, int agno, struct inode *ip)
 {
@@ -2013,8 +2013,8 @@ static int diAllocExt(struct inomap * imap, int agno, struct inode *ip)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
 {
@@ -2153,8 +2153,8 @@ static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  */
 static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
 {
@@ -2267,7 +2267,7 @@ static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
 		 */
 		dmp = get_metapage(ipimap, blkno + i, PSIZE, 1);
 		if (dmp == NULL) {
-			rc = EIO;
+			rc = -EIO;
 			goto error_out;
 		}
 		dp = (struct dinode *) dmp->data;
@@ -2413,8 +2413,8 @@ static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
  *
  * RETURN VALUES:
  *      0       - success.
- *      ENOSPC 	- insufficient disk resources.
- *      EIO  	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
  *
  * serialization: 
  *	AG lock held on entry/exit;
@@ -2485,7 +2485,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 			/* release the inode map lock */
 			IWRITE_UNLOCK(ipimap);
 
-			rc = ENOSPC;
+			rc = -ENOSPC;
 			goto out;
 		}
 
@@ -2516,7 +2516,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 			/* release the inode map lock */
 			IWRITE_UNLOCK(ipimap);
 
-			rc = EIO;
+			rc = -EIO;
 			goto out;
 		}
 		iagp = (struct iag *) mp->data;
@@ -2548,7 +2548,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 			/* release the inode map lock */
 			IWRITE_UNLOCK(ipimap);
 
-			rc = EIO;
+			rc = -EIO;
 			goto out;
 		}
 
@@ -2614,7 +2614,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 	/* read the iag */
 	if ((rc = diIAGRead(imap, iagno, &mp))) {
 		IREAD_UNLOCK(ipimap);
-		rc = EIO;
+		rc = -EIO;
 		goto out;
 	}
 	iagp = (struct iag *) mp->data;
@@ -2653,7 +2653,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
  *
  * RETURN VALUES:
  *      0       - success.
- *      EIO  	- i/o error.
+ *      -EIO  	- i/o error.
  */
 static int diIAGRead(struct inomap * imap, int iagno, struct metapage ** mpp)
 {
@@ -2666,7 +2666,7 @@ static int diIAGRead(struct inomap * imap, int iagno, struct metapage ** mpp)
 	/* read the iag. */
 	*mpp = read_metapage(ipimap, blkno, PSIZE, 0);
 	if (*mpp == NULL) {
-		return (EIO);
+		return -EIO;
 	}
 
 	return (0);
@@ -2713,7 +2713,8 @@ static int diFindFree(u32 word, int start)
  *	is_free	- If TRUE indicates inode should be marked freed, otherwise
  *		  indicates inode should be marked allocated.
  *
- * RETURNS: 0 for success
+ * RETURN VALUES: 
+ *		0 for success
  */
 int
 diUpdatePMap(struct inode *ipimap,
@@ -3009,7 +3010,7 @@ static void duplicateIXtree(struct super_block *sb, s64 blkno,
  *
  * RETURN VALUES:
  *      0       - success
- *      ENOMEM	- insufficient memory
+ *      -ENOMEM	- insufficient memory
  */
 static int copy_from_dinode(struct dinode * dip, struct inode *ip)
 {

fs/jfs/jfs_incore.h

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *   Portions Copyright (c) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
@@ -130,32 +130,34 @@ enum cflags {
  * JFS-private superblock information.
  */
 struct jfs_sb_info {
-	unsigned long	mntflag;	/* 4: aggregate attributes	*/
-	struct inode	*ipbmap;	/* 4: block map inode		*/
-	struct inode	*ipaimap;	/* 4: aggregate inode map inode	*/
-	struct inode	*ipaimap2;	/* 4: secondary aimap inode	*/
-	struct inode	*ipimap;	/* 4: aggregate inode map inode	*/
-	struct jfs_log	*log;		/* 4: log			*/
-	short		bsize;		/* 2: logical block size	*/
-	short		l2bsize;	/* 2: log2 logical block size	*/
-	short		nbperpage;	/* 2: blocks per page		*/
-	short		l2nbperpage;	/* 2: log2 blocks per page	*/
-	short		l2niperblk;	/* 2: log2 inodes per page	*/
-	u32		logdev;		/* 2: external log device	*/
+	unsigned long	mntflag;	/* aggregate attributes	*/
+	struct inode	*ipbmap;	/* block map inode		*/
+	struct inode	*ipaimap;	/* aggregate inode map inode	*/
+	struct inode	*ipaimap2;	/* secondary aimap inode	*/
+	struct inode	*ipimap;	/* aggregate inode map inode	*/
+	struct jfs_log	*log;		/* log			*/
+	short		bsize;		/* logical block size	*/
+	short		l2bsize;	/* log2 logical block size	*/
+	short		nbperpage;	/* blocks per page		*/
+	short		l2nbperpage;	/* log2 blocks per page	*/
+	short		l2niperblk;	/* log2 inodes per page	*/
+	u32		logdev;		/* external log device	*/
 	uint		aggregate;	/* volume identifier in log record */
-	pxd_t		logpxd;		/* 8: pxd describing log	*/
-	pxd_t		fsckpxd;	/* 8: pxd describing fsck wkspc */
-	pxd_t		ait2;		/* 8: pxd describing AIT copy	*/
-	char		uuid[16];	/* 16: 128-bit uuid for volume	*/
-	char		loguuid[16];	/* 16: 128-bit uuid for log	*/
+	pxd_t		logpxd;		/* pxd describing log	*/
+	pxd_t		fsckpxd;	/* pxd describing fsck wkspc */
+	pxd_t		ait2;		/* pxd describing AIT copy	*/
+	char		uuid[16];	/* 128-bit uuid for volume	*/
+	char		loguuid[16];	/* 128-bit uuid for log	*/
 	/* Formerly in ipimap */
-	uint		gengen;		/* 4: inode generation generator*/
-	uint		inostamp;	/* 4: shows inode belongs to fileset*/
+	uint		gengen;		/* inode generation generator*/
+	uint		inostamp;	/* shows inode belongs to fileset*/
 
         /* Formerly in ipbmap */
-	struct bmap	*bmap;		/* 4: incore bmap descriptor	*/
-	struct nls_table *nls_tab;	/* 4: current codepage		*/
-	uint		state;		/* 4: mount/recovery state	*/
+	struct bmap	*bmap;		/* incore bmap descriptor	*/
+	struct nls_table *nls_tab;	/* current codepage		*/
+	uint		state;		/* mount/recovery state	*/
+	unsigned long	flag;		/* mount time flags */
+	uint		p_state;	/* state prior to going no integrity */
 };
 
 static inline struct jfs_inode_info *JFS_IP(struct inode *inode)

fs/jfs/jfs_logmgr.c

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *   Portions Copyright (c) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
@@ -667,7 +667,7 @@ int lmGroupCommit(struct jfs_log * log, struct tblock * tblk)
 	/* group committed already ? */
 	if (tblk->flag & tblkGC_COMMITTED) {
 		if (tblk->flag & tblkGC_ERROR)
-			rc = EIO;
+			rc = -EIO;
 
 		LOGGC_UNLOCK(log);
 		return rc;
@@ -701,7 +701,7 @@ int lmGroupCommit(struct jfs_log * log, struct tblock * tblk)
 
 	if (tblk->flag & tblkGC_COMMITTED) {
 		if (tblk->flag & tblkGC_ERROR)
-			rc = EIO;
+			rc = -EIO;
 
 		LOGGC_UNLOCK(log);
 		return rc;
@@ -717,7 +717,7 @@ int lmGroupCommit(struct jfs_log * log, struct tblock * tblk)
 
 	/* removed from commit queue */
 	if (tblk->flag & tblkGC_ERROR)
-		rc = EIO;
+		rc = -EIO;
 
 	LOGGC_UNLOCK(log);
 	return rc;
@@ -1068,7 +1068,7 @@ int lmLogOpen(struct super_block *sb, struct jfs_log ** logptr)
 	struct jfs_log *log;
 
 	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL)))
-		return ENOMEM;
+		return -ENOMEM;
 	memset(log, 0, sizeof(struct jfs_log));
 	init_waitqueue_head(&log->syncwait);
 
@@ -1113,7 +1113,6 @@ int lmLogOpen(struct super_block *sb, struct jfs_log ** logptr)
 	}
 
 	if ((rc = bd_claim(bdev, log))) {
-		rc = -rc;
 		goto close;
 	}
 
@@ -1169,7 +1168,7 @@ int lmLogOpen(struct super_block *sb, struct jfs_log ** logptr)
  * PARAMETER:	log	- log structure
  *
  * RETURN:	0	- if ok
- *		EINVAL	- bad log magic number or superblock dirty
+ *		-EINVAL	- bad log magic number or superblock dirty
  *		error returned from logwait()
  *			
  * serialization: single first open thread
@@ -1209,21 +1208,21 @@ int lmLogInit(struct jfs_log * log)
 
 	if (logsuper->magic != cpu_to_le32(LOGMAGIC)) {
 		jfs_warn("*** Log Format Error ! ***");
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto errout20;
 	}
 
 	/* logredo() should have been run successfully. */
 	if (logsuper->state != cpu_to_le32(LOGREDONE)) {
 		jfs_warn("*** Log Is Dirty ! ***");
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto errout20;
 	}
 
 	/* initialize log inode from log superblock */
 	if (test_bit(log_INLINELOG,&log->flag)) {
 		if (log->size != le32_to_cpu(logsuper->size)) {
-			rc = EINVAL;
+			rc = -EINVAL;
 			goto errout20;
 		}
 		jfs_info("lmLogInit: inline log:0x%p base:0x%Lx size:0x%x",
@@ -1242,6 +1241,15 @@ int lmLogInit(struct jfs_log * log)
 	log->page = le32_to_cpu(logsuper->end) / LOGPSIZE;
 	log->eor = le32_to_cpu(logsuper->end) - (LOGPSIZE * log->page);
 
+	/* check for disabled journaling to disk */
+	if (JFS_SBI(log->sb)->flag & JFS_NOINTEGRITY) {
+		log->no_integrity = 1;
+		log->ni_page = log->page;
+		log->ni_eor = log->eor;
+	}
+	else
+		log->no_integrity = 0;
+
 	/*
 	 * initialize for log append write mode
 	 */
@@ -1525,6 +1533,14 @@ int lmLogShutdown(struct jfs_log * log)
 	lrd.type = cpu_to_le16(LOG_SYNCPT);
 	lrd.length = 0;
 	lrd.log.syncpt.sync = 0;
+	
+	/* check for disabled journaling to disk */
+	if (JFS_SBI(log->sb)->flag & JFS_NOINTEGRITY) {
+		log->no_integrity = 0;
+		log->page = log->ni_page;
+		log->eor = log->ni_eor;
+	}
+
 	lsn = lmWriteRecord(log, NULL, &lrd, NULL);
 	bp = log->bp;
 	lp = (struct logpage *) bp->l_ldata;
@@ -1610,7 +1626,7 @@ static int lmLogFileSystem(struct jfs_log * log, char *uuid, int activate)
 		if (i == MAX_ACTIVE) {
 			jfs_warn("Somebody stomped on the journal!");
 			lbmFree(bpsuper);
-			return EIO;
+			return -EIO;
 		}
 		
 	}
@@ -1698,7 +1714,7 @@ static int lbmLogInit(struct jfs_log * log)
 
       error:
 	lbmLogShutdown(log);
-	return (ENOMEM);
+	return -ENOMEM;
 }
 
 
@@ -1986,10 +2002,18 @@ static void lbmStartIO(struct lbuf * bp)
 	bio->bi_end_io = lbmIODone;
 	bio->bi_private = bp;
 
-	submit_bio(WRITE, bio);
-
-	INCREMENT(lmStat.submitted);
-	blk_run_queues();
+	/* check if journaling to disk has been disabled */
+	if (!log->no_integrity) {
+		submit_bio(WRITE, bio);
+		INCREMENT(lmStat.submitted);
+		blk_run_queues();
+	}
+	else {
+		bio->bi_size = 0;
+		lbmIODone(bio, 0, 0); /* 2nd argument appears to not be used => 0
+				       *  3rd argument appears to not be used => 0
+				       */
+	}
 }
 
 
@@ -2007,7 +2031,7 @@ static int lbmIOWait(struct lbuf * bp, int flag)
 
 	LCACHE_SLEEP_COND(bp->l_ioevent, (bp->l_flag & lbmDONE), flags);
 
-	rc = (bp->l_flag & lbmERROR) ? EIO : 0;
+	rc = (bp->l_flag & lbmERROR) ? -EIO : 0;
 
 	if (flag & lbmFREE)
 		lbmfree(bp);

fs/jfs/jfs_logmgr.h

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *   Portions Copyright (c) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
@@ -417,6 +417,10 @@ struct jfs_log {
 	struct lbuf *wqueue;	/* 4: log pageout queue */
 	int count;		/* 4: count */
 	char uuid[16];		/* 16: 128-bit uuid of log device */
+
+	int no_integrity;	/* 3: flag to disable journaling to disk */
+	int ni_page;		/* 4: backup of page for nointegrity option */
+	int ni_eor;		/* 4: backup of eor for nointegrity option */
 };
 
 /*

fs/jfs/jfs_mount.c

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *
  *   This program is free software;  you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -72,11 +72,11 @@ static int logMOUNT(struct super_block *sb);
  *
  * PARAMETER:	sb	- super block
  *
- * RETURN:	EBUSY	- device already mounted or open for write
- *		EBUSY	- cvrdvp already mounted;
- *		EBUSY	- mount table full
- *		ENOTDIR	- cvrdvp not directory on a device mount
- *		ENXIO	- device open failure
+ * RETURN:	-EBUSY	- device already mounted or open for write
+ *		-EBUSY	- cvrdvp already mounted;
+ *		-EBUSY	- mount table full
+ *		-ENOTDIR- cvrdvp not directory on a device mount
+ *		-ENXIO	- device open failure
  */
 int jfs_mount(struct super_block *sb)
 {
@@ -98,7 +98,7 @@ int jfs_mount(struct super_block *sb)
 	ipaimap = diReadSpecial(sb, AGGREGATE_I, 0);
 	if (ipaimap == NULL) {
 		jfs_err("jfs_mount: Faild to read AGGREGATE_I");
-		rc = EIO;
+		rc = -EIO;
 		goto errout20;
 	}
 	sbi->ipaimap = ipaimap;
@@ -118,7 +118,7 @@ int jfs_mount(struct super_block *sb)
 	 */
 	ipbmap = diReadSpecial(sb, BMAP_I, 0);
 	if (ipbmap == NULL) {
-		rc = EIO;
+		rc = -EIO;
 		goto errout22;
 	}
 
@@ -149,7 +149,7 @@ int jfs_mount(struct super_block *sb)
 		ipaimap2 = diReadSpecial(sb, AGGREGATE_I, 1);
 		if (ipaimap2 == 0) {
 			jfs_err("jfs_mount: Faild to read AGGREGATE_I");
-			rc = EIO;
+			rc = -EIO;
 			goto errout35;
 		}
 		sbi->ipaimap2 = ipaimap2;
@@ -178,7 +178,7 @@ int jfs_mount(struct super_block *sb)
 	if (ipimap == NULL) {
 		jfs_err("jfs_mount: Failed to read FILESYSTEM_I");
 		/* open fileset secondary inode allocation map */
-		rc = EIO;
+		rc = -EIO;
 		goto errout40;
 	}
 	jfs_info("jfs_mount: ipimap:0x%p", ipimap);
@@ -327,8 +327,7 @@ static int chkSuper(struct super_block *sb)
 	/* validate fs signature */
 	if (strncmp(j_sb->s_magic, JFS_MAGIC, 4) ||
 	    j_sb->s_version > cpu_to_le32(JFS_VERSION)) {
-		//rc = EFORMAT;
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto out;
 	}
 
@@ -336,7 +335,7 @@ static int chkSuper(struct super_block *sb)
 #ifdef _JFS_4K
 	if (bsize != PSIZE) {
 		jfs_err("Currently only 4K block size supported!");
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto out;
 	}
 #endif				/* _JFS_4K */
@@ -372,7 +371,7 @@ static int chkSuper(struct super_block *sb)
 	if (j_sb->s_state != cpu_to_le32(FM_CLEAN) &&
 	    !(sb->s_flags & MS_RDONLY)) {
 		jfs_err("jfs_mount: Mount Failure: File System Dirty.");
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto out;
 	}
 
@@ -421,12 +420,20 @@ int updateSuper(struct super_block *sb, uint state)
 	struct buffer_head *bh;
 	int rc;
 
-	/*
-	 * Only fsck can fix dirty state
-	 */
-	if (sbi->state == FM_DIRTY)
+	if (sbi->flag & JFS_NOINTEGRITY) {
+		if (state == FM_DIRTY) {
+			sbi->p_state = state;
+			return 0;
+		} else if (state == FM_MOUNT) {
+			sbi->p_state = sbi->state;
+			state = FM_DIRTY;
+		} else if (state == FM_CLEAN) {
+			state = sbi->p_state;
+		} else
+			jfs_err("updateSuper: bad state");
+	} else if (sbi->state == FM_DIRTY)
 		return 0;
-
+	
 	if ((rc = readSuper(sb, &bh)))
 		return rc;
 

fs/jfs/jfs_txnmgr.c

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *   Portions Copyright (c) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
@@ -257,7 +257,7 @@ int txInit(void)
 	size = sizeof(struct tblock) * nTxBlock;
 	TxBlock = (struct tblock *) vmalloc(size);
 	if (TxBlock == NULL)
-		return ENOMEM;
+		return -ENOMEM;
 
 	for (k = 1; k < nTxBlock - 1; k++) {
 		TxBlock[k].next = k + 1;
@@ -283,7 +283,7 @@ int txInit(void)
 	TxLock = (struct tlock *) vmalloc(size);
 	if (TxLock == NULL) {
 		vfree(TxBlock);
-		return ENOMEM;
+		return -ENOMEM;
 	}
 
 	/* initialize tlock table */
@@ -1098,7 +1098,7 @@ int txCommit(tid_t tid,		/* transaction identifier */
 	     struct inode **iplist,	/* list of inode to commit */
 	     int flag)
 {
-	int rc = 0, rc1 = 0;
+	int rc = 0;
 	struct commit cd;
 	struct jfs_log *log;
 	struct tblock *tblk;
@@ -1318,8 +1318,6 @@ int txCommit(tid_t tid,		/* transaction identifier */
       out:
 	if (rc != 0)
 		txAbortCommit(&cd, rc);
-	else
-		rc = rc1;
 
       TheEnd:
 	jfs_info("txCommit: tid = %d, returning %d", tid, rc);
@@ -2738,7 +2736,7 @@ void txLazyCommit(struct tblock * tblk)
 		/* We must have gotten ahead of the user thread
 		 */
 		jfs_info("jfs_lazycommit: tblk 0x%p not unlocked", tblk);
-		schedule();
+		yield();
 	}
 
 	jfs_info("txLazyCommit: processing tblk 0x%p", tblk);

fs/jfs/jfs_unicode.c

@@ -68,8 +68,7 @@ int jfs_strtoUCS(wchar_t * to,
 			jfs_err("jfs_strtoUCS: char2uni returned %d.", charlen);
 			jfs_err("charset = %s, char = 0x%x",
 				codepage->charset, (unsigned char) *from);
-			to[i] = 0x003f;	/* a question mark */
-			charlen = 1;
+			return charlen;
 		}
 	}
 
@@ -89,16 +88,21 @@ int get_UCSname(struct component_name * uniName, struct dentry *dentry,
 	int length = dentry->d_name.len;
 
 	if (length > JFS_NAME_MAX)
-		return ENAMETOOLONG;
+		return -ENAMETOOLONG;
 
 	uniName->name =
 	    kmalloc((length + 1) * sizeof(wchar_t), GFP_NOFS);
 
 	if (uniName->name == NULL)
-		return ENOSPC;
+		return -ENOSPC;
 
 	uniName->namlen = jfs_strtoUCS(uniName->name, dentry->d_name.name,
 				       length, nls_tab);
 
+	if (uniName->namlen < 0) {
+		kfree(uniName->name);
+		return uniName->namlen;
+	}
+
 	return 0;
 }

fs/jfs/jfs_xtree.c

@@ -73,7 +73,7 @@
 			BT_PUTPAGE(MP);\
 			updateSuper((IP)->i_sb, FM_DIRTY);\
 			MP = NULL;\
-                        RC = EIO;\
+                        RC = -EIO;\
                 }\
         }\
 }
@@ -814,7 +814,7 @@ int xtInsert(tid_t tid,		/* transaction id */
 	/* This test must follow XT_GETSEARCH since mp must be valid if
 	 * we branch to out: */
 	if (cmp == 0) {
-		rc = EEXIST;
+		rc = -EEXIST;
 		goto out;
 	}
 
@@ -1033,7 +1033,7 @@ xtSplitUp(tid_t tid,
 	    xtSplitRoot(tid, ip, split, &rmp) :
 	    xtSplitPage(tid, ip, split, &rmp, &rbn);
 	if (rc)
-		return EIO;
+		return -EIO;
 
 	XT_PUTPAGE(smp);
 
@@ -1238,7 +1238,7 @@ xtSplitPage(tid_t tid, struct inode *ip,
 	rbn = addressPXD(pxd);
 	rmp = get_metapage(ip, rbn, PSIZE, 1);
 	if (rmp == NULL)
-		return EIO;
+		return -EIO;
 
 	jfs_info("xtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp);
 
@@ -1485,7 +1485,7 @@ xtSplitRoot(tid_t tid,
 	rbn = addressPXD(pxd);
 	rmp = get_metapage(ip, rbn, PSIZE, 1);
 	if (rmp == NULL)
-		return EIO;
+		return -EIO;
 
 	jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp);
 
@@ -2409,7 +2409,7 @@ int xtAppend(tid_t tid,		/* transaction id */
 	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
 
 	if (cmp == 0) {
-		rc = EEXIST;
+		rc = -EEXIST;
 		goto out;
 	}
 //insert:
@@ -2557,7 +2557,7 @@ int xtDelete(tid_t tid, struct inode *ip, s64 xoff, s32 xlen, int flag)
 	if (cmp) {
 		/* unpin the leaf page */
 		XT_PUTPAGE(mp);
-		return ENOENT;
+		return -ENOENT;
 	}
 
 	/*
@@ -2788,7 +2788,7 @@ xtRelocate(tid_t tid, struct inode * ip, xad_t * oxad,	/* old XAD */
 	/* validate extent offset */
 	offset = xoff << JFS_SBI(ip->i_sb)->l2bsize;
 	if (offset >= ip->i_size)
-		return ESTALE;	/* stale extent */
+		return -ESTALE;	/* stale extent */
 
 	jfs_info("xtRelocate: xtype:%d xoff:0x%lx xlen:0x%x xaddr:0x%lx:0x%lx",
 		 xtype, (ulong) xoff, xlen, (ulong) oxaddr, (ulong) nxaddr);
@@ -2804,7 +2804,7 @@ xtRelocate(tid_t tid, struct inode * ip, xad_t * oxad,	/* old XAD */
 			return rc;
 		if (cmp) {
 			XT_PUTPAGE(pmp);
-			return ESTALE;
+			return -ESTALE;
 		}
 
 		/* retrieve search result */
@@ -2814,7 +2814,7 @@ xtRelocate(tid_t tid, struct inode * ip, xad_t * oxad,	/* old XAD */
 		xad = &pp->xad[index];
 		if (addressXAD(xad) != oxaddr || lengthXAD(xad) != xlen) {
 			XT_PUTPAGE(pmp);
-			return ESTALE;
+			return -ESTALE;
 		}
 	} else {		/* (xtype == XTPAGE) */
 
@@ -2824,7 +2824,7 @@ xtRelocate(tid_t tid, struct inode * ip, xad_t * oxad,	/* old XAD */
 			return rc;
 		if (cmp) {
 			XT_PUTPAGE(pmp);
-			return ESTALE;
+			return -ESTALE;
 		}
 
 		/* retrieve search result */
@@ -3127,7 +3127,7 @@ static int xtSearchNode(struct inode *ip, xad_t * xad,	/* required XAD entry */
 		if (rc)
 			return rc;
 		if (p->header.flag & BT_LEAF)
-			return ESTALE;
+			return -ESTALE;
 
 		lim = le16_to_cpu(p->header.nextindex) - XTENTRYSTART;
 
@@ -3439,7 +3439,7 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
       getPage:
 	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 	if (rc)
-		return -rc;
+		return rc;
 
 	/* process entries backward from last index */
 	index = le16_to_cpu(p->header.nextindex) - 1;
@@ -3667,7 +3667,7 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
 	bn = parent->bn;
 	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 	if (rc)
-		return -rc;
+		return rc;
 
 	index = parent->index;
 
@@ -3924,7 +3924,7 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
 		xoff = (committed_size >> JFS_SBI(ip->i_sb)->l2bsize) - 1;
 		rc = xtSearch(ip, xoff, &cmp, &btstack, 0);
 		if (rc)
-			return -rc;
+			return rc;
 		assert(cmp == 0);
 		XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
 	} else {
@@ -3941,7 +3941,7 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
       getPage:
 		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 		if (rc)
-			return -rc;
+			return rc;
 
 		/* process entries backward from last index */
 		index = le16_to_cpu(p->header.nextindex) - 1;
@@ -3986,7 +3986,7 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
 	bn = parent->bn;
 	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 	if (rc)
-		return -rc;
+		return rc;
 
 	index = parent->index;
 
@@ -4311,7 +4311,7 @@ int xtGather(btree_t *t)
 			bn = parent->bn;
 			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
 			if (rc)
-				return EIO;
+				return -EIO;
 
 			/* first subroot page which
 			 * covers all new allocated blocks

fs/jfs/namei.c

@@ -87,7 +87,7 @@ int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
 	 */
 	ip = ialloc(dip, mode);
 	if (ip == NULL) {
-		rc = ENOSPC;
+		rc = -ENOSPC;
 		goto out2;
 	}
 
@@ -160,8 +160,8 @@ int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
 
       out1:
 
-	jfs_info("jfs_create: rc:%d", -rc);
-	return -rc;
+	jfs_info("jfs_create: rc:%d", rc);
+	return rc;
 }
 
 
@@ -195,7 +195,7 @@ int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
 
 	/* link count overflow on parent directory ? */
 	if (dip->i_nlink == JFS_LINK_MAX) {
-		rc = EMLINK;
+		rc = -EMLINK;
 		goto out1;
 	}
 
@@ -213,7 +213,7 @@ int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
 	 */
 	ip = ialloc(dip, S_IFDIR | mode);
 	if (ip == NULL) {
-		rc = ENOSPC;
+		rc = -ENOSPC;
 		goto out2;
 	}
 
@@ -290,8 +290,8 @@ int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
 
       out1:
 
-	jfs_info("jfs_mkdir: rc:%d", -rc);
-	return -rc;
+	jfs_info("jfs_mkdir: rc:%d", rc);
+	return rc;
 }
 
 /*
@@ -302,8 +302,8 @@ int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
  * PARAMETER:	dip 	- parent inode
  *		dentry	- child directory dentry
  *
- * RETURN:	EINVAL	- if name is . or ..
- *		EINVAL  - if . or .. exist but are invalid.
+ * RETURN:	-EINVAL	- if name is . or ..
+ *		-EINVAL  - if . or .. exist but are invalid.
  *		errors from subroutines
  *
  * note:
@@ -327,7 +327,7 @@ int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 
 	/* directory must be empty to be removed */
 	if (!dtEmpty(ip)) {
-		rc = ENOTEMPTY;
+		rc = -ENOTEMPTY;
 		goto out;
 	}
 
@@ -413,7 +413,7 @@ int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 
       out:
 	jfs_info("jfs_rmdir: rc:%d", rc);
-	return -rc;
+	return rc;
 }
 
 /*
@@ -499,7 +499,7 @@ int jfs_unlink(struct inode *dip, struct dentry *dentry)
 			up(&JFS_IP(dip)->commit_sem);
 			up(&JFS_IP(ip)->commit_sem);
 			IWRITE_UNLOCK(ip);
-			rc = -new_size;		/* We return -rc */
+			rc = new_size;
 			goto out1;
 		}
 		tblk = tid_to_tblock(tid);
@@ -561,8 +561,8 @@ int jfs_unlink(struct inode *dip, struct dentry *dentry)
       out1:
 	free_UCSname(&dname);
       out:
-	jfs_info("jfs_unlink: rc:%d", -rc);
-	return -rc;
+	jfs_info("jfs_unlink: rc:%d", rc);
+	return rc;
 }
 
 /*
@@ -587,7 +587,7 @@ int jfs_unlink(struct inode *dip, struct dentry *dentry)
  * PARAMETERS:	cd	- pointer to commit data structure.
  *			  current inode is the one to truncate.
  *
- * RETURN :	Errors from subroutines
+ * RETURN:	Errors from subroutines
  */
 s64 commitZeroLink(tid_t tid, struct inode *ip)
 {
@@ -777,7 +777,7 @@ int jfs_link(struct dentry *old_dentry,
 	down(&JFS_IP(ip)->commit_sem);
 
 	if (ip->i_nlink == JFS_LINK_MAX) {
-		rc = EMLINK;
+		rc = -EMLINK;
 		goto out;
 	}
 
@@ -815,7 +815,7 @@ int jfs_link(struct dentry *old_dentry,
 	up(&JFS_IP(ip)->commit_sem);
 
 	jfs_info("jfs_link: rc:%d", rc);
-	return -rc;
+	return rc;
 }
 
 /*
@@ -873,7 +873,7 @@ int jfs_symlink(struct inode *dip, struct dentry *dentry, const char *name)
 	 */
 	ip = ialloc(dip, S_IFLNK | 0777);
 	if (ip == NULL) {
-		rc = ENOSPC;
+		rc = -ENOSPC;
 		goto out2;
 	}
 
@@ -965,7 +965,7 @@ int jfs_symlink(struct inode *dip, struct dentry *dentry, const char *name)
 				if (mp == NULL) {
 					dtDelete(tid, dip, &dname, &ino,
 						 JFS_REMOVE);
-					rc = EIO;
+					rc = -EIO;
 					goto out3;
 				}
 				memcpy(mp->data, name, copy_size);
@@ -983,7 +983,7 @@ int jfs_symlink(struct inode *dip, struct dentry *dentry, const char *name)
 			ip->i_blocks = LBLK2PBLK(sb, xlen);
 		} else {
 			dtDelete(tid, dip, &dname, &ino, JFS_REMOVE);
-			rc = ENOSPC;
+			rc = -ENOSPC;
 			goto out3;
 		}
 	}
@@ -1030,8 +1030,8 @@ int jfs_symlink(struct inode *dip, struct dentry *dentry, const char *name)
 #endif
 
       out1:
-	jfs_info("jfs_symlink: rc:%d", -rc);
-	return -rc;
+	jfs_info("jfs_symlink: rc:%d", rc);
+	return rc;
 }
 
 
@@ -1080,7 +1080,7 @@ int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 */
 	rc = dtSearch(old_dir, &old_dname, &ino, &btstack, JFS_LOOKUP);
 	if (rc || (ino != old_ip->i_ino)) {
-		rc = ENOENT;
+		rc = -ENOENT;
 		goto out3;
 	}
 
@@ -1090,26 +1090,26 @@ int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	rc = dtSearch(new_dir, &new_dname, &ino, &btstack, JFS_LOOKUP);
 	if (rc == 0) {
 		if ((new_ip == 0) || (ino != new_ip->i_ino)) {
-			rc = ESTALE;
+			rc = -ESTALE;
 			goto out3;
 		}
-	} else if (rc != ENOENT)
+	} else if (rc != -ENOENT)
 		goto out3;
 	else if (new_ip) {
 		/* no entry exists, but one was expected */
-		rc = ESTALE;
+		rc = -ESTALE;
 		goto out3;
 	}
 
 	if (S_ISDIR(old_ip->i_mode)) {
 		if (new_ip) {
 			if (!dtEmpty(new_ip)) {
-				rc = ENOTEMPTY;
+				rc = -ENOTEMPTY;
 				goto out3;
 			}
 		} else if ((new_dir != old_dir) &&
 			   (new_dir->i_nlink == JFS_LINK_MAX)) {
-			rc = EMLINK;
+			rc = -EMLINK;
 			goto out3;
 		}
 	} else if (new_ip)
@@ -1147,7 +1147,7 @@ int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			/* free block resources */
 			if ((new_size = commitZeroLink(tid, new_ip)) < 0) {
 				txAbort(tid, 1);	/* Marks FS Dirty */
-				rc = -new_size;		/* We return -rc */
+				rc = new_size;		
 				goto out4;
 			}
 			tblk = tid_to_tblock(tid);
@@ -1264,7 +1264,7 @@ int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		new_size = xtTruncate_pmap(tid, new_ip, new_size);
 		if (new_size < 0) {
 			txAbort(tid, 1);
-			rc = -new_size;		/* We return -rc */
+			rc = new_size;		
 		} else
 			rc = txCommit(tid, 1, &new_ip, COMMIT_SYNC);
 		txEnd(tid);
@@ -1291,7 +1291,7 @@ int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	}
 
 	jfs_info("jfs_rename: returning %d", rc);
-	return -rc;
+	return rc;
 }
 
 
@@ -1318,7 +1318,7 @@ int jfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
 
 	ip = ialloc(dir, mode);
 	if (ip == NULL) {
-		rc = ENOSPC;
+		rc = -ENOSPC;
 		goto out1;
 	}
 
@@ -1372,7 +1372,7 @@ int jfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
 
       out:
 	jfs_info("jfs_mknod: returning %d", rc);
-	return -rc;
+	return rc;
 }
 
 static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struct nameidata *nd)
@@ -1395,15 +1395,15 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
 	else {
 		if ((rc =
 		     get_UCSname(&key, dentry, JFS_SBI(dip->i_sb)->nls_tab)))
-			return ERR_PTR(-rc);
+			return ERR_PTR(rc);
 		rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP);
 		free_UCSname(&key);
-		if (rc == ENOENT) {
+		if (rc == -ENOENT) {
 			d_add(dentry, NULL);
 			return ERR_PTR(0);
 		} else if (rc) {
 			jfs_err("jfs_lookup: dtSearch returned %d", rc);
-			return ERR_PTR(-rc);
+			return ERR_PTR(rc);
 		}
 	}
 

fs/jfs/resize.c

@@ -182,7 +182,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 
 	/* file system cannot be shrinked */
 	if (newFSSize < bmp->db_mapsize) {
-		rc = EINVAL;
+		rc = -EINVAL;
 		goto out;
 	}
 
@@ -315,7 +315,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	if (mapSize > t64) {
 		printk(KERN_ERR "jfs_extendfs: mapSize (0x%Lx) > t64 (0x%Lx)\n",
 		       (long long) mapSize, (long long) t64);
-		rc = EIO;
+		rc = -EIO;
 		goto error_out;
 	}
 	nblocks = min(t64 - mapSize, XSize);

fs/jfs/super.c

 /*
- *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Copyright (c) International Business Machines Corp., 2000-2003
  *   Portions Copyright (c) Christoph Hellwig, 2001-2002
  *
  *   This program is free software;  you can redistribute it and/or modify
@@ -164,7 +164,8 @@ static void jfs_put_super(struct super_block *sb)
 	kfree(sbi);
 }
 
-static int parse_options(char *options, struct super_block *sb, s64 *newLVSize)
+static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
+			 int *flag)
 {
 	void *nls_map = NULL;
 	char *this_char;
@@ -180,7 +181,11 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize)
 			continue;
 		if ((value = strchr(this_char, '=')) != NULL)
 			*value++ = 0;
-		if (!strcmp(this_char, "iocharset")) {
+		if (!strcmp(this_char, "integrity")) {
+			*flag &= ~JFS_NOINTEGRITY;
+		} else 	if (!strcmp(this_char, "nointegrity")) {
+			*flag |= JFS_NOINTEGRITY;
+		} else if (!strcmp(this_char, "iocharset")) {
 			if (!value || !*value)
 				goto needs_arg;
 			if (nls_map)	/* specified iocharset twice! */
@@ -231,8 +236,9 @@ int jfs_remount(struct super_block *sb, int *flags, char *data)
 {
 	s64 newLVSize = 0;
 	int rc = 0;
+	int flag = JFS_SBI(sb)->flag;
 
-	if (!parse_options(data, sb, &newLVSize)) {
+	if (!parse_options(data, sb, &newLVSize, &flag)) {
 		return -EINVAL;
 	}
 	if (newLVSize) {
@@ -246,10 +252,24 @@ int jfs_remount(struct super_block *sb, int *flags, char *data)
 			return rc;
 	}
 
-	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY))
+	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
+		JFS_SBI(sb)->flag = flag;
 		return jfs_mount_rw(sb, 1);
-	else if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY))
-		return jfs_umount_rw(sb);
+	}
+	if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
+		rc = jfs_umount_rw(sb);
+		JFS_SBI(sb)->flag = flag;
+		return rc;
+	}
+	if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))
+		if (!(sb->s_flags & MS_RDONLY)) {
+			rc = jfs_umount_rw(sb);
+			if (rc)
+				return rc;
+			JFS_SBI(sb)->flag = flag;
+			return jfs_mount_rw(sb, 1);
+		}
+	JFS_SBI(sb)->flag = flag;
 
 	return 0;
 }
@@ -260,6 +280,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *inode;
 	int rc;
 	s64 newLVSize = 0;
+	int flag;
 
 	jfs_info("In jfs_read_super: s_flags=0x%lx", sb->s_flags);
 
@@ -269,10 +290,12 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 	memset(sbi, 0, sizeof (struct jfs_sb_info));
 	sb->s_fs_info = sbi;
 
-	if (!parse_options((char *) data, sb, &newLVSize)) {
+	flag = 0;
+	if (!parse_options((char *) data, sb, &newLVSize, &flag)) {
 		kfree(sbi);
 		return -EINVAL;
 	}
+	sbi->flag = flag;
 
 	if (newLVSize) {
 		printk(KERN_ERR "resize option for remount only\n");
@@ -519,7 +542,7 @@ static int __init init_jfs_fs(void)
 	metapage_exit();
 free_slab:
 	kmem_cache_destroy(jfs_inode_cachep);
-	return -rc;
+	return rc;
 }
 
 static void __exit exit_jfs_fs(void)

fs/jfs/xattr.c

@@ -183,7 +183,7 @@ static int ea_write_inline(struct inode *ip, struct jfs_ea_list *ealist,
 		 * used for an inline EA.
 		 */
 		if (!(ji->mode2 & INLINEEA) && !(ji->ea.flag & DXD_INLINE))
-			return -1;
+			return -EPERM;
 
 		DXDsize(ea, size);
 		DXDlength(ea, 0);
@@ -252,7 +252,7 @@ static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
 
 	rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
 	if (rc)
-		return -rc;
+		return rc;
 
 	/*
 	 * Now have nblocks worth of storage to stuff into the FEALIST.
@@ -513,7 +513,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
 		rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed,
 			     &blkno);
 		if (rc)
-			return -rc;
+			return rc;
 
 		DXDlength(&ea_buf->new_ea, blocks_needed);
 		DXDaddress(&ea_buf->new_ea, blkno);