doc/

2001-01-08  Marcus Brinkmann  <marcus@gnu.org>

	* hurd.texi (Store Management): Replace off_t with store_offset_t.
	(Store I/O): Likewise.
	(Store Classes): Likewise.

ext2fs/
2001-01-08  Marcus Brinkmann  <marcus@gnu.org>

	* ext2fs.c (main): Use %Ld instead %ld to print store->size.
	* hyper.c (get_hypermetadata): Likewise.

libstore/
2001-01-08  Marcus Brinkmann  <marcus@gnu.org>

	* zero.c (zero_remap): Change type of variables length, old_length
	to store_offset_t.
	(zero_decode): Change type of variable size to store_offset_t.
	(zero_open): Likewise. Use strtoull instead strtoul to parse
	size argument from name. Use store_offset_t for max_offs and
	its calculation.
	(store_zero_create): Use store_offset_t type for size argument.

	* derive.c (_store_derive): Use store_offset_t as type for
	variable last_part_base.

	* stripe.c (addr_adj): Change types of addr argument and return
	value to store_offset_t.
	(store_ileave_create): Change type of interleave argument and
	variables min_end and end to store_offset_t, but type of variable
	block_size to size_t.
	(store_concat_create): Change type of variable block_size to
	size_t.

	* make.c (_store_create): Change end argument type to store_offset_t.

	* store.h: New type store_offset_t, define to off64_t.
	(struct store_run): Change type of start and length to
	store_offset_t.
	(struct store): Change type of end, wrap_src, wrap_dst, blocks,
	size to store_offset_t.
	Change type of addr arg in store_read_meth_t and
	store_write_meth_t to store_offset_t, as well as in declarations
	for store_read and store_write.
	Change type of argument end in _store_create declaration to
	store_offset_t.
	Change type of argument size in store_zero_create to
	store_offset_t. Change type of argument interleace in
	store_ileace_create to store_offset_t.

	* rdwr.c (store_find_first_run): Change type of return value, addr
	and *base arguments, and variables wrap_src and run_blocks to
	store_offset_t.
	(store_next_run): Change type of *base argument to store_offset_t.
	(store_write): Change type of addr argument and variable base to
	store_offset_t.
	(store_read): Likewise, also for addr argument of local function seg_read.
	Change type of len argument to size_t.

	* copy.c (copy_read): Change type of addr argument to store_offset_t.
	(copy_write): Likewise.
	* device.c (dev_read): Likewise.
	(dev_write): Likewise.
	* file.c (file_read): Likewise.
	(file_write): Likewise.
	(file_byte_read): Likewise.
	(file_byte_write): Likewise.
	* mvol.c (mvol_read): Likewise.
	(mvol_write): Likewise.
	* remap.c (remap_read): Likewise.
	(remap_write): Likewise.
	* stripe.c (stripe_read): Likewise.
	(stripe_write): Likewise.
	* task.c (task_read): Likewise.
	(task_write): Likewise.
	* zero.c (zero_read): Likewise.
	(zero_write): Likewise.

	* remap.c (store_remap_runs): Change type of addr and len
	arguments of local function add_run and of local variables addr,
	length, baddr, blen and len to store_offset_t.
	(remap_open): Cast -1 to store_offset_t, not off_t.

	* argp.c (struct store_parsed): Change type of interleave from
	off_t to store_offset_t.
	(store_parsed_append_args): Use %Ld instead %ld to print
	interleave value.
	(store_parsed_name): Likewise.

ufs/
2001-01-08  Marcus Brinkmann  <marcus@gnu.org>

	* main.c (main): Use %Ld instead %ld to print store->size.
	* hyper.c (get_hypermetadata): Likewise.
	* inode.c (diskfs_S_file_get_storage_info): Change type of variables
	start and length from off_t to store_offset_t.

utils/
2001-01-08  Marcus Brinkmann  <marcus@gnu.org>

	* storeread.c (main): Change type of addr to store_offset_t,
	also for first argument of local function dump.
	Add comment about store->size as len parameter for store_read.
	Use atoll instead atoi for addr argument.

	* storeinfo.c (print_store): Remove local function pint, add two
	similar functions psiz and poff, accepting and printing a size_t
	or store_offset_t respectively.
	Use psiz to print block_size, poff to print blocks and size of
	store.
	Use %Ld instead %ld to print runs.

	* storecat.c (main): Change type of addr and left to store_offset_t.

14 files changed, 153 insertions, 66 deletions

diff --git a/libstore/ChangeLog b/libstore/ChangeLog
index fe1405fc..4b1fd92b 100644
--- a/libstore/ChangeLog
+++ b/libstore/ChangeLog
@@ -1,3 +1,79 @@
+2001-01-08  Marcus Brinkmann  <marcus@gnu.org>
+
+	* zero.c (zero_remap): Change type of variables length, old_length
+	to store_offset_t.
+	(zero_decode): Change type of variable size to store_offset_t.
+	(zero_open): Likewise. Use strtoull instead strtoul to parse
+	size argument from name. Use store_offset_t for max_offs and
+	its calculation.
+	(store_zero_create): Use store_offset_t type for size argument.
+
+	* derive.c (_store_derive): Use store_offset_t as type for
+	variable last_part_base.
+
+	* stripe.c (addr_adj): Change types of addr argument and return
+	value to store_offset_t.
+	(store_ileave_create): Change type of interleave argument and
+	variables min_end and end to store_offset_t, but type of variable
+	block_size to size_t.
+	(store_concat_create): Change type of variable block_size to
+	size_t.
+
+	* make.c (_store_create): Change end argument type to store_offset_t.
+
+	* store.h: New type store_offset_t, define to off64_t.
+	(struct store_run): Change type of start and length to
+	store_offset_t.
+	(struct store): Change type of end, wrap_src, wrap_dst, blocks,
+	size to store_offset_t.
+	Change type of addr arg in store_read_meth_t and
+	store_write_meth_t to store_offset_t, as well as in declarations
+	for store_read and store_write.
+	Change type of argument end in _store_create declaration to
+	store_offset_t.
+	Change type of argument size in store_zero_create to
+	store_offset_t. Change type of argument interleace in
+	store_ileace_create to store_offset_t.
+
+	* rdwr.c (store_find_first_run): Change type of return value, addr
+	and *base arguments, and variables wrap_src and run_blocks to
+	store_offset_t.
+	(store_next_run): Change type of *base argument to store_offset_t.
+	(store_write): Change type of addr argument and variable base to
+	store_offset_t.
+	(store_read): Likewise, also for addr argument of local function seg_read.
+	Change type of len argument to size_t.
+
+	* copy.c (copy_read): Change type of addr argument to store_offset_t.
+	(copy_write): Likewise.
+	* device.c (dev_read): Likewise.
+	(dev_write): Likewise.
+	* file.c (file_read): Likewise.
+	(file_write): Likewise.
+	(file_byte_read): Likewise.
+	(file_byte_write): Likewise.
+	* mvol.c (mvol_read): Likewise.
+	(mvol_write): Likewise.
+	* remap.c (remap_read): Likewise.
+	(remap_write): Likewise.
+	* stripe.c (stripe_read): Likewise.
+	(stripe_write): Likewise.
+	* task.c (task_read): Likewise.
+	(task_write): Likewise.
+	* zero.c (zero_read): Likewise.
+	(zero_write): Likewise.
+
+	* remap.c (store_remap_runs): Change type of addr and len
+	arguments of local function add_run and of local variables addr,
+	length, baddr, blen and len to store_offset_t.
+	(remap_open): Cast -1 to store_offset_t, not off_t.
+
+	* argp.c (struct store_parsed): Change type of interleave from
+	off_t to store_offset_t.
+	(store_parsed_append_args): Use %Ld instead %ld to print
+	interleave value.
+	(store_parsed_name): Likewise.
+
 2001-01-07  Marcus Brinkmann  <marcus@gnu.org>
 
 	* copy.c: Include <mach.h>. New macro page_aligned.
diff --git a/libstore/argp.c b/libstore/argp.c
index 97640e19..1ebd32a2 100644
--- a/libstore/argp.c
+++ b/libstore/argp.c
@@ -59,7 +59,7 @@ struct store_parsed
   /* DEFAULT_TYPE field passed to parser.  */
   const struct store_class *default_type;
 
-  off_t interleave;		/* --interleave value */
+  store_offset_t interleave;	/* --interleave value */
   int layer : 1;		/* --layer specified */
 };
 
@@ -85,7 +85,7 @@ store_parsed_append_args (const struct store_parsed *parsed,
   if (!err && num_names > 1 && (parsed->interleave || parsed->layer))
     {
       if (parsed->interleave)
-	snprintf (buf, sizeof buf, "--interleave=%ld", parsed->interleave);
+	snprintf (buf, sizeof buf, "--interleave=%Ld", parsed->interleave);
       else
 	snprintf (buf, sizeof buf, "--layer=%d", parsed->layer);
       err = argz_add (args, args_len, buf);
@@ -128,7 +128,7 @@ store_parsed_name (const struct store_parsed *parsed, char **name)
     {
       if (parsed->interleave)
 	{
-	  snprintf (buf, sizeof buf, "interleave(%ld,", parsed->interleave);
+	  snprintf (buf, sizeof buf, "interleave(%Ld,", parsed->interleave);
 	  pfx = buf;
 	}
       else if (parsed->layer)
diff --git a/libstore/copy.c b/libstore/copy.c
index 6a4d0d5a..25ea1259 100644
--- a/libstore/copy.c
+++ b/libstore/copy.c
@@ -32,7 +32,7 @@
 
 static error_t
 copy_read (struct store *store,
-	   off_t addr, size_t index, size_t amount, void **buf, size_t *len)
+	   store_offset_t addr, size_t index, size_t amount, void **buf, size_t *len)
 {
   char *data = store->hook + (addr * store->block_size);
 
@@ -59,7 +59,7 @@ copy_read (struct store *store,
 
 static error_t
 copy_write (struct store *store,
-	    off_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index, void *buf, size_t len, size_t *amount)
 {
   char *data = store->hook + (addr * store->block_size);
 
diff --git a/libstore/derive.c b/libstore/derive.c
index 8c0b2790..41bcbaca 100644
--- a/libstore/derive.c
+++ b/libstore/derive.c
@@ -50,7 +50,7 @@ _store_derive (struct store *store)
        to include all iterations.  */
     {
       size_t num_iters = store->end / store->wrap_src;
-      off_t last_part_base = num_iters * store->wrap_src;
+      store_offset_t last_part_base = num_iters * store->wrap_src;
 
       store->blocks *= num_iters;
 
diff --git a/libstore/device.c b/libstore/device.c
index 986ca25b..ac7555f6 100644
--- a/libstore/device.c
+++ b/libstore/device.c
@@ -48,7 +48,7 @@ dev_error (error_t err)
 
 static error_t
 dev_read (struct store *store,
-	  off_t addr, size_t index, mach_msg_type_number_t amount,
+	  store_offset_t addr, size_t index, mach_msg_type_number_t amount,
 	  void **buf, mach_msg_type_number_t *len)
 {
   return dev_error (device_read (store->port, 0, addr, amount,
@@ -57,7 +57,7 @@ dev_read (struct store *store,
 
 static error_t
 dev_write (struct store *store,
-	   off_t addr, size_t index, void *buf, mach_msg_type_number_t len,
+	   store_offset_t addr, size_t index, void *buf, mach_msg_type_number_t len,
 	   mach_msg_type_number_t *amount)
 {
   return dev_error (device_write (store->port, 0, addr,
diff --git a/libstore/file.c b/libstore/file.c
index e952a91e..4f9a1b6e 100644
--- a/libstore/file.c
+++ b/libstore/file.c
@@ -29,7 +29,8 @@
 
 static error_t
 file_read (struct store *store,
-	   off_t addr, size_t index, size_t amount, void **buf, size_t *len)
+	   store_offset_t addr, size_t index, size_t amount, void **buf,
+	   size_t *len)
 {
   size_t bsize = store->block_size;
   return io_read (store->port, (char **)buf, len, addr * bsize, amount);
@@ -37,7 +38,8 @@ file_read (struct store *store,
 
 static error_t
 file_write (struct store *store,
-	    off_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index, void *buf, size_t len,
+	    size_t *amount)
 {
   size_t bsize = store->block_size;
   return io_write (store->port, buf, len, addr * bsize, amount);
@@ -197,7 +199,7 @@ store_file_class =
 
 static error_t
 file_byte_read (struct store *store,
-		off_t addr, size_t index, size_t amount,
+		store_offset_t addr, size_t index, size_t amount,
 		void **buf, size_t *len)
 {
   return io_read (store->port, (char **)buf, len, addr, amount);
@@ -205,7 +207,7 @@ file_byte_read (struct store *store,
 
 static error_t
 file_byte_write (struct store *store,
-		 off_t addr, size_t index, void *buf, size_t len,
+		 store_offset_t addr, size_t index, void *buf, size_t len,
 		 size_t *amount)
 {
   return io_write (store->port, buf, len, addr, amount);
diff --git a/libstore/make.c b/libstore/make.c
index ed476ba4..8f289533 100644
--- a/libstore/make.c
+++ b/libstore/make.c
@@ -27,8 +27,8 @@
 error_t
 _store_create (const struct store_class *class,
 	       mach_port_t port, int flags, size_t block_size,
-	       const struct store_run *runs, size_t num_runs, off_t end,
-	       struct store **store)
+	       const struct store_run *runs, size_t num_runs,
+	       store_offset_t end, struct store **store)
 {
   if ((block_size & (block_size - 1)) || (block_size == 0 && num_runs > 0))
     return EINVAL;		/* block size not a power of two.  */
diff --git a/libstore/mvol.c b/libstore/mvol.c
index b0753dac..18eacf40 100644
--- a/libstore/mvol.c
+++ b/libstore/mvol.c
@@ -50,7 +50,7 @@ ensure_vol (struct store *store, size_t vol)
 
 static error_t
 mvol_read (struct store *store,
-	   off_t addr, size_t index, size_t amount,
+	   store_offset_t addr, size_t index, size_t amount,
 	   void **buf, size_t *len)
 {
   error_t err = ensure_vol (store, index);
@@ -61,7 +61,7 @@ mvol_read (struct store *store,
 
 static error_t
 mvol_write (struct store *store,
-	    off_t addr, size_t index, void *buf, size_t len,
+	    store_offset_t addr, size_t index, void *buf, size_t len,
 	    size_t *amount)
 {
   error_t err = ensure_vol (store, index);
diff --git a/libstore/rdwr.c b/libstore/rdwr.c
index 85d2ba2b..e79f56a2 100644
--- a/libstore/rdwr.c
+++ b/libstore/rdwr.c
@@ -27,13 +27,13 @@
    ADDR, and is not a hole, and in RUNS_END a pointer pointing at the end of
    the run list.  Returns the offset within it at which ADDR occurs.  Also
    returns BASE, which should be added to offsets from RUNS.  */
-static inline off_t
-store_find_first_run (struct store *store, off_t addr,
+static inline store_offset_t
+store_find_first_run (struct store *store, store_offset_t addr,
 		      struct store_run **run, struct store_run **runs_end,
-		      off_t *base, size_t *index)
+		      store_offset_t *base, size_t *index)
 {
   struct store_run *tail = store->runs, *tail_end = tail + store->num_runs;
-  off_t wrap_src = store->wrap_src;
+  store_offset_t wrap_src = store->wrap_src;
 
   if (addr >= wrap_src && addr < store->end)
     /* Locate the correct position within a repeating pattern of runs.  */
@@ -49,7 +49,7 @@ store_find_first_run (struct store *store, off_t addr,
      binary search or something.  */
   while (tail < tail_end)
     {
-      off_t run_blocks = tail->length;
+      store_offset_t run_blocks = tail->length;
 
       if (run_blocks > addr)
 	{
@@ -72,7 +72,7 @@ store_find_first_run (struct store *store, off_t addr,
    things are still kosher.  */
 static inline int
 store_next_run (struct store *store, struct store_run *runs_end,
-		struct store_run **run, off_t *base, size_t *index)
+		struct store_run **run, store_offset_t *base, size_t *index)
 {
   (*run)++;
   (*index)++;
@@ -95,11 +95,11 @@ store_next_run (struct store *store, struct store_run *runs_end,
    in AMOUNT.  ADDR is in BLOCKS (as defined by STORE->block_size).  */
 error_t
 store_write (struct store *store,
-	     off_t addr, void *buf, size_t len, size_t *amount)
+	     store_offset_t addr, void *buf, size_t len, size_t *amount)
 {
   error_t err;
   size_t index;
-  off_t base;
+  store_offset_t base;
   struct store_run *run, *runs_end;
   int block_shift = store->log2_block_size;
   store_write_meth_t write = store->class->write;
@@ -172,10 +172,10 @@ store_write (struct store *store,
    (as defined by STORE->block_size).  */
 error_t
 store_read (struct store *store,
-	    off_t addr, size_t amount, void **buf, size_t *len)
+	    store_offset_t addr, size_t amount, void **buf, size_t *len)
 {
   size_t index;
-  off_t base;
+  store_offset_t base;
   struct store_run *run, *runs_end;
   int block_shift = store->log2_block_size;
   store_read_meth_t read = store->class->read;
@@ -204,7 +204,7 @@ store_read (struct store *store,
       /* Read LEN bytes from the store address ADDR into BUF_END.  BUF_END
 	 and AMOUNT are adjusted by the amount actually read.  Whether or not
 	 the amount read is the same as what was request is returned in ALL. */
-      inline error_t seg_read (off_t addr, off_t len, int *all)
+      inline error_t seg_read (store_offset_t addr, size_t len, int *all)
 	{
 	  /* SEG_BUF and SEG_LEN are the buffer for a particular bit of the
 	     whole (within one run). */
diff --git a/libstore/remap.c b/libstore/remap.c
index e1965ea5..6dd104e8 100644
--- a/libstore/remap.c
+++ b/libstore/remap.c
@@ -27,7 +27,7 @@
 
 static error_t
 remap_read (struct store *store,
-	     off_t addr, size_t index, size_t amount,
+	     store_offset_t addr, size_t index, size_t amount,
 	     void **buf, size_t *len)
 {
   return store_read (store->children[0], addr, amount, buf, len);
@@ -35,7 +35,7 @@ remap_read (struct store *store,
 
 static error_t
 remap_write (struct store *store,
-	      off_t addr, size_t index, void *buf, size_t len,
+	      store_offset_t addr, size_t index, void *buf, size_t len,
 	      size_t *amount)
 {
   return store_write (store->children[0], addr, buf, len, amount);
@@ -120,7 +120,7 @@ remap_open (const char *name, int flags,
 	      /* Syntax "100+" means block 100 to the end of the store.
 		 Since we don't know the size yet, we use -1 as a marker
 		 for the code below.  */
-	      runs[nruns++].length = (off_t) -1;
+	      runs[nruns++].length = (store_offset_t) -1;
 	      break;
 	    }
 	  runs[nruns].length = strtoul (p, &endp, 0);
@@ -144,7 +144,7 @@ remap_open (const char *name, int flags,
 	 and update them to use the actual size of the store.  */
       size_t i;
       for (i = 0; i < nruns; ++i)
-	if (runs[i].length == (off_t) -1)
+	if (runs[i].length == (store_offset_t) -1)
 	  runs[i].length = from->blocks - runs[i].start;
 
       /* Now do the remapping according to RUNS.  */
@@ -241,7 +241,7 @@ store_remap_runs (const struct store_run *runs, size_t num_runs,
   size_t xruns_alloced = num_runs + num_base_runs;
 
   /* Add the single run [ADDR, LEN) to *XRUNS, returning true if successful. */
-  int add_run (off_t addr, off_t len)
+  int add_run (store_offset_t addr, store_offset_t len)
     {
       if (*num_xruns == xruns_alloced)
 	/* Make some more space in *XRUNS.  */
@@ -266,13 +266,13 @@ store_remap_runs (const struct store_run *runs, size_t num_runs,
 
   for (i = 0; i < num_runs; i++)
     {
-      off_t addr = runs[i].start, left = runs[i].length;
+      store_offset_t addr = runs[i].start, left = runs[i].length;
 
       if (addr >= 0)
 	for (j = 0; j < num_base_runs && left > 0; j++)
 	  {
-	    off_t baddr = base_runs[j].start;
-	    off_t blen = base_runs[j].length;
+	    store_offset_t baddr = base_runs[j].start;
+	    store_offset_t blen = base_runs[j].length;
 
 	    if (addr >= blen)
 	      addr -= blen;
@@ -282,7 +282,7 @@ store_remap_runs (const struct store_run *runs, size_t num_runs,
 	    else
 	      /* Add another output run.  */
 	      {
-		off_t len = blen - addr; /* Size of next output run.  */
+		store_offset_t len = blen - addr; /* Size of next output run.  */
 		if (! add_run (baddr + addr, len > left ? left : len))
 		  ERR (ENOMEM);
 		addr = 0;
diff --git a/libstore/store.h b/libstore/store.h
index c7789373..9c5e5bfd 100644
--- a/libstore/store.h
+++ b/libstore/store.h
@@ -39,10 +39,13 @@
 #endif
 
 
+/* Type for addresses inside the store.  */
+typedef off64_t store_offset_t;
+
 /* A portion of a store.  If START == -1, it's a hole.  */
 struct store_run
 {
-  off_t start, length;
+  store_offset_t start, length;
 };
 
 struct store
@@ -57,13 +60,13 @@ struct store
   size_t num_runs;		/* Length of RUNS.  */
 
   /* Maximum valid offset.  This is the same as SIZE, but in blocks.  */
-  off_t end;
+  store_offset_t end;
 
   /* WRAP_SRC is the sum of the run lengths in RUNS.  If this is less than
      END, then RUNS describes a repeating pattern, of length WRAP_SRC -- each
      successive iteration having an additional offset of WRAP_DST.  */
-  off_t wrap_src;
-  off_t wrap_dst;		/* Only meaningful if WRAP_SRC < END */
+  store_offset_t wrap_src;
+  store_offset_t wrap_dst;	/* Only meaningful if WRAP_SRC < END */
 
   /* Handles for the underlying storage.  */
   char *name;			/* Malloced */
@@ -73,9 +76,9 @@ struct store
   size_t block_size;
 
   /* The number of blocks (of size BLOCK_SIZE) in this storage.  */
-  off_t blocks;
+  store_offset_t blocks;
   /* The number of bytes in this storage, including holes.  */
-  off_t size;
+  store_offset_t size;
 
   /* Log_2 (BLOCK_SIZE) or 0 if not a power of 2. */
   unsigned log2_block_size;
@@ -121,11 +124,11 @@ struct store
 				 | ~(STORE_BACKEND_SPEC_BASE - 1))
 
 typedef error_t (*store_write_meth_t)(struct store *store,
-				      off_t addr, size_t index,
+				      store_offset_t addr, size_t index,
 				      void *buf, mach_msg_type_number_t len,
 				      mach_msg_type_number_t *amount);
 typedef error_t (*store_read_meth_t)(struct store *store,
-				     off_t addr, size_t index,
+				     store_offset_t addr, size_t index,
 				     mach_msg_type_number_t amount,
 				     void **buf, mach_msg_type_number_t *len);
 
@@ -229,7 +232,7 @@ error_t
 _store_create (const struct store_class *class, mach_port_t port,
 	       int flags, size_t block_size,
 	       const struct store_run *runs, size_t num_runs,
-	       off_t end, struct store **store);
+	       store_offset_t end, struct store **store);
 
 /* Set STORE's current runs list to (a copy of) RUNS and NUM_RUNS.  */
 error_t store_set_runs (struct store *store,
@@ -293,13 +296,13 @@ error_t store_remap (struct store *source,
 /* Write LEN bytes from BUF to STORE at ADDR.  Returns the amount written in
    AMOUNT (in bytes).  ADDR is in BLOCKS (as defined by STORE->block_size).  */
 error_t store_write (struct store *store,
-		     off_t addr, void *buf, size_t len, size_t *amount);
+		     store_offset_t addr, void *buf, size_t len, size_t *amount);
 
 /* Read AMOUNT bytes from STORE at ADDR into BUF & LEN (which following the
    usual mach buffer-return semantics) to STORE at ADDR.  ADDR is in BLOCKS
    (as defined by STORE->block_size).  Note that LEN is in bytes.  */
 error_t store_read (struct store *store,
-		    off_t addr, size_t amount, void **buf, size_t *len);
+		    store_offset_t addr, size_t amount, void **buf, size_t *len);
 
 /* If STORE was created using store_create, remove the reference to the
    source from which it was created.  */
@@ -322,7 +325,7 @@ error_t store_create_pager (struct store *store, vm_prot_t prot, ...,
 /* Creating specific types of stores.  */
 
 /* Return a new zero store SIZE bytes long in STORE.  */
-error_t store_zero_create (off_t size, int flags, struct store **store);
+error_t store_zero_create (store_offset_t size, int flags, struct store **store);
 
 /* Return a new store in STORE referring to the mach device DEVICE.  Consumes
    the send right DEVICE.  */
@@ -388,7 +391,8 @@ error_t store_typed_open (const char *name, int flags,
    consumed -- that is, will be freed when this store is (however, the
    *array* STRIPES is copied, and so should be freed by the caller).  */
 error_t store_ileave_create (struct store * const *stripes, size_t num_stripes,
-			     off_t interleave, int flags, struct store **store);
+			     store_offset_t interleave, int flags,
+			     struct store **store);
 
 /* Return a new store in STORE that concatenates all the stores in STORES
    (NUM_STORES of them).  The stores in STRIPES are consumed -- that is, will
diff --git a/libstore/stripe.c b/libstore/stripe.c
index 59fb504e..52a596df 100644
--- a/libstore/stripe.c
+++ b/libstore/stripe.c
@@ -27,8 +27,8 @@ extern long lcm (long p, long q);
 
 /* Return ADDR adjust for any block size difference between STORE and
    STRIPE.  We assume that STORE's block size is no less than STRIPE's.  */
-static inline off_t
-addr_adj (off_t addr, struct store *store, struct store *stripe)
+static inline store_offset_t
+addr_adj (store_offset_t addr, struct store *store, struct store *stripe)
 {
   unsigned common_bs = store->log2_block_size;
   unsigned stripe_bs = stripe->log2_block_size;
@@ -40,7 +40,7 @@ addr_adj (off_t addr, struct store *store, struct store *stripe)
 
 static error_t
 stripe_read (struct store *store,
-	     off_t addr, size_t index, size_t amount,
+	     store_offset_t addr, size_t index, size_t amount,
 	     void **buf, size_t *len)
 {
   struct store *stripe = store->children[index];
@@ -49,7 +49,7 @@ stripe_read (struct store *store,
 
 static error_t
 stripe_write (struct store *store,
-	      off_t addr, size_t index, void *buf, size_t len,
+	      store_offset_t addr, size_t index, void *buf, size_t len,
 	      size_t *amount)
 {
   struct store *stripe = store->children[index];
@@ -160,11 +160,13 @@ store_concat_class =
    *array* STRIPES is copied, and so should be freed by the caller).  */
 error_t
 store_ileave_create (struct store *const *stripes, size_t num_stripes,
-		     off_t interleave, int flags, struct store **store)
+		     store_offset_t interleave, int flags,
+		     struct store **store)
 {
   size_t i;
   error_t err;
-  off_t block_size = 1, min_end = 0;
+  size_t block_size = 1;
+  store_offset_t min_end = 0;
   struct store_run runs[num_stripes];
   int common_flags = STORE_BACKEND_FLAGS;
 
@@ -180,7 +182,7 @@ store_ileave_create (struct store *const *stripes, size_t num_stripes,
   for (i = 0; i < num_stripes; i++)
     {
        /* The stripe's end adjusted to the common block size.  */
-      off_t end = stripes[i]->end;
+      store_offset_t end = stripes[i]->end;
 
       runs[i].start = 0;
       runs[i].length = interleave;
@@ -222,7 +224,7 @@ store_concat_create (struct store * const *stores, size_t num_stores,
 {
   size_t i;
   error_t err;
-  off_t block_size = 1;
+  size_t block_size = 1;
   int common_flags = STORE_BACKEND_FLAGS;
   struct store_run runs[num_stores];
 
diff --git a/libstore/task.c b/libstore/task.c
index d2cce5f3..aad91c2c 100644
--- a/libstore/task.c
+++ b/libstore/task.c
@@ -56,7 +56,7 @@ tclose (struct store *store)
 
 static error_t
 task_read (struct store *store,
-	   off_t addr, size_t index, size_t amount, void **buf, size_t *len)
+	   store_offset_t addr, size_t index, size_t amount, void **buf, size_t *len)
 {
   size_t bsize = store->block_size;
   return vm_read (store->port, addr * bsize, amount, (vm_address_t *)buf, len);
@@ -64,7 +64,7 @@ task_read (struct store *store,
 
 static error_t
 task_write (struct store *store,
-	    off_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index, void *buf, size_t len, size_t *amount)
 {
   size_t bsize = store->block_size;
   error_t err = vm_write (store->port, addr * bsize, (vm_address_t)buf, len);
diff --git a/libstore/zero.c b/libstore/zero.c
index f0a23276..4452179b 100644
--- a/libstore/zero.c
+++ b/libstore/zero.c
@@ -29,7 +29,8 @@
 
 static error_t
 zero_read (struct store *store,
-	   off_t addr, size_t index, size_t amount, void **buf, size_t *len)
+	   store_offset_t addr, size_t index, size_t amount, void **buf,
+	   size_t *len)
 {
   if (*len < amount)
     {
@@ -48,7 +49,8 @@ zero_read (struct store *store,
 
 static error_t
 zero_write (struct store *store,
-	    off_t addr, size_t index, void *buf, size_t len, size_t *amount)
+	    store_offset_t addr, size_t index, void *buf, size_t len,
+	    size_t *amount)
 {
   return 0;
 }
@@ -63,7 +65,7 @@ zero_remap (struct store *source,
      run; here we simply count up the number of blocks specified by RUNS, and
      modify SOURCE's one run to reflect that.  */
   int i;
-  off_t length = 0, old_length = source->runs[0].length;
+  store_offset_t length = 0, old_length = source->runs[0].length;
   for (i = 0; i < num_runs; i++)
     if (runs[i].start < 0 || runs[i].start + runs[i].length >= old_length)
       return EINVAL;
@@ -95,7 +97,7 @@ error_t
 zero_decode (struct store_enc *enc, const struct store_class *const *classes,
 	     struct store **store)
 {
-  off_t size;
+  store_offset_t size;
   int type, flags;
 
   if (enc->cur_int + 2 > enc->num_ints
@@ -117,7 +119,7 @@ zero_open (const char *name, int flags,
   if (name)
     {
       char *end;
-      off_t size = strtoul (name, &end, 0);
+      store_offset_t size = strtoull (name, &end, 0);
       if (end == name || end == NULL)
 	return EINVAL;
       switch (*end)
@@ -142,7 +144,8 @@ zero_open (const char *name, int flags,
     }
   else
     {
-      off_t max_offs = ~((off_t)1 << (CHAR_BIT * sizeof (off_t) - 1));
+      store_offset_t max_offs = ~((store_offset_t)1
+				  << (CHAR_BIT * sizeof (store_offset_t) - 1));
       return store_zero_create (max_offs, flags, store);
     }
 }
@@ -178,7 +181,7 @@ store_zero_class =
 
 /* Return a new zero store SIZE bytes long in STORE.  */
 error_t
-store_zero_create (off_t size, int flags, struct store **store)
+store_zero_create (store_offset_t size, int flags, struct store **store)
 {
   struct store_run run = { 0, size };
   return