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Subject[RFC 11/13] extents and 48bit ext3: block type convert in extents
From
Date

convert extents blocks type to ext3_fsblk_t.

Signed-Off-By: Avantika Mathur <mathur@us.ibm.com>
Acked-By: Alex Tomas <alex@us.ibm.com>


---

linux-2.6.16-ming/fs/ext3/extents.c | 106 +++++++++++-----------
linux-2.6.16-ming/include/linux/ext3_fs_extents.h | 2
linux-2.6.16-ming/include/linux/ext3_fs_i.h | 8 -
3 files changed, 59 insertions(+), 57 deletions(-)

diff -puN fs/ext3/extents.c~ext3-extents-ext3_fsblk_t fs/ext3/extents.c
--- linux-2.6.16/fs/ext3/extents.c~ext3-extents-ext3_fsblk_t 2006-06-08 17:35:34.870614145 -0700
+++ linux-2.6.16-ming/fs/ext3/extents.c 2006-06-08 17:35:34.884612516 -0700
@@ -44,41 +44,41 @@
#include <asm/uaccess.h>


-/* this macro combines low and hi parts of phys. blocknr into sector_t */
-static inline sector_t ext_pblock(struct ext3_extent *ex)
+/* this macro combines low and hi parts of phys. blocknr into ext3_fsblk_t */
+static inline ext3_fsblk_t ext_pblock(struct ext3_extent *ex)
{
- sector_t block;
+ ext3_fsblk_t block;

block = le32_to_cpu(ex->ee_start);
- if (sizeof(sector_t) > 4)
- block |= ((sector_t) le16_to_cpu(ex->ee_start_hi) << 31) << 1;
+ if (sizeof(ext3_fsblk_t) > 4)
+ block |= ((ext3_fsblk_t) le16_to_cpu(ex->ee_start_hi) << 31) << 1;
return block;
}

-/* this macro combines low and hi parts of phys. blocknr into sector_t */
-static inline sector_t idx_pblock(struct ext3_extent_idx *ix)
+/* this macro combines low and hi parts of phys. blocknr into ext3_fsblk_t */
+static inline ext3_fsblk_t idx_pblock(struct ext3_extent_idx *ix)
{
- sector_t block;
+ ext3_fsblk_t block;

block = le32_to_cpu(ix->ei_leaf);
- if (sizeof(sector_t) > 4)
- block |= ((sector_t) le16_to_cpu(ix->ei_leaf_hi) << 31) << 1;
+ if (sizeof(ext3_fsblk_t) > 4)
+ block |= ((ext3_fsblk_t) le16_to_cpu(ix->ei_leaf_hi) << 31) << 1;
return block;
}

/* the routine stores large phys. blocknr into extent breaking it into parts */
-static inline void ext3_ext_store_pblock(struct ext3_extent *ex, sector_t pb)
+static inline void ext3_ext_store_pblock(struct ext3_extent *ex, ext3_fsblk_t pb)
{
ex->ee_start = cpu_to_le32((unsigned long) (pb & 0xffffffff));
- if (sizeof(sector_t) > 4)
+ if (sizeof(ext3_fsblk_t) > 4)
ex->ee_start_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
}

/* the routine stores large phys. blocknr into index breaking it into parts */
-static inline void ext3_idx_store_pblock(struct ext3_extent_idx *ix, sector_t pb)
+static inline void ext3_idx_store_pblock(struct ext3_extent_idx *ix, ext3_fsblk_t pb)
{
ix->ei_leaf = cpu_to_le32((unsigned long) (pb & 0xffffffff));
- if (sizeof(sector_t) > 4)
+ if (sizeof(ext3_fsblk_t) > 4)
ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
}

@@ -162,13 +162,13 @@ static int ext3_ext_dirty(handle_t *hand
return err;
}

-static int ext3_ext_find_goal(struct inode *inode,
+static ext3_fsblk_t ext3_ext_find_goal(struct inode *inode,
struct ext3_ext_path *path,
- sector_t block)
+ ext3_fsblk_t block)
{
struct ext3_inode_info *ei = EXT3_I(inode);
- unsigned long bg_start;
- unsigned long colour;
+ ext3_fsblk_t bg_start;
+ ext3_grpblk_t colour;
int depth;

if (path) {
@@ -193,12 +193,12 @@ static int ext3_ext_find_goal(struct ino
return bg_start + colour + block;
}

-static int
+static ext3_fsblk_t
ext3_ext_new_block(handle_t *handle, struct inode *inode,
struct ext3_ext_path *path,
struct ext3_extent *ex, int *err)
{
- int goal, newblock;
+ ext3_fsblk_t goal, newblock;

goal = ext3_ext_find_goal(inode, path, le32_to_cpu(ex->ee_block));
newblock = ext3_new_block(handle, inode, goal, err);
@@ -267,10 +267,10 @@ static void ext3_ext_show_path(struct in
ext_debug("path:");
for (k = 0; k <= l; k++, path++) {
if (path->p_idx) {
- ext_debug(" %d->%llu", le32_to_cpu(path->p_idx->ei_block),
+ ext_debug(" %d->"E3FSBLK, le32_to_cpu(path->p_idx->ei_block),
idx_pblock(path->p_idx));
} else if (path->p_ext) {
- ext_debug(" %d:%d:%lld",
+ ext_debug(" %d:%d:"E3FSBLK" ",
le32_to_cpu(path->p_ext->ee_block),
le16_to_cpu(path->p_ext->ee_len),
ext_pblock(path->p_ext));
@@ -294,7 +294,7 @@ static void ext3_ext_show_leaf(struct in
ex = EXT_FIRST_EXTENT(eh);

for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ex++) {
- ext_debug("%d:%d:%lld ", le32_to_cpu(ex->ee_block),
+ ext_debug("%d:%d:"E3FSBLK" ", le32_to_cpu(ex->ee_block),
le16_to_cpu(ex->ee_len), ext_pblock(ex));
}
ext_debug("\n");
@@ -410,7 +410,7 @@ ext3_ext_binsearch(struct inode *inode,
}

path->p_ext = l - 1;
- ext_debug(" -> %d:%lld:%d ",
+ ext_debug(" -> %d:"E3FSBLK":%d ",
le32_to_cpu(path->p_ext->ee_block),
ext_pblock(path->p_ext),
le16_to_cpu(path->p_ext->ee_len));
@@ -525,7 +525,7 @@ err:
*/
static int ext3_ext_insert_index(handle_t *handle, struct inode *inode,
struct ext3_ext_path *curp,
- int logical, int ptr)
+ int logical, ext3_fsblk_t ptr)
{
struct ext3_extent_idx *ix;
int len, err;
@@ -592,9 +592,9 @@ static int ext3_ext_split(handle_t *hand
struct ext3_extent_idx *fidx;
struct ext3_extent *ex;
int i = at, k, m, a;
- unsigned long newblock, oldblock;
+ ext3_fsblk_t newblock, oldblock;
__le32 border;
- int *ablocks = NULL; /* array of allocated blocks */
+ ext3_fsblk_t *ablocks = NULL; /* array of allocated blocks */
int err = 0;

/* make decision: where to split? */
@@ -627,10 +627,10 @@ static int ext3_ext_split(handle_t *hand
* we need this to handle errors and free blocks
* upon them
*/
- ablocks = kmalloc(sizeof(unsigned long) * depth, GFP_NOFS);
+ ablocks = kmalloc(sizeof(ext3_fsblk_t) * depth, GFP_NOFS);
if (!ablocks)
return -ENOMEM;
- memset(ablocks, 0, sizeof(unsigned long) * depth);
+ memset(ablocks, 0, sizeof(ext3_fsblk_t) * depth);

/* allocate all needed blocks */
ext_debug("allocate %d blocks for indexes/leaf\n", depth - at);
@@ -669,7 +669,7 @@ static int ext3_ext_split(handle_t *hand
path[depth].p_ext++;
while (path[depth].p_ext <=
EXT_MAX_EXTENT(path[depth].p_hdr)) {
- ext_debug("move %d:%lld:%d in new leaf %lu\n",
+ ext_debug("move %d:"E3FSBLK":%d in new leaf "E3FSBLK"\n",
le32_to_cpu(path[depth].p_ext->ee_block),
ext_pblock(path[depth].p_ext),
le16_to_cpu(path[depth].p_ext->ee_len),
@@ -715,7 +715,7 @@ static int ext3_ext_split(handle_t *hand
while (k--) {
oldblock = newblock;
newblock = ablocks[--a];
- bh = sb_getblk(inode->i_sb, newblock);
+ bh = sb_getblk(inode->i_sb, (ext3_fsblk_t)newblock);
if (!bh) {
err = -EIO;
goto cleanup;
@@ -734,7 +734,7 @@ static int ext3_ext_split(handle_t *hand
fidx->ei_block = border;
ext3_idx_store_pblock(fidx, oldblock);

- ext_debug("int.index at %d (block %lu): %lu -> %lu\n", i,
+ ext_debug("int.index at %d (block "E3FSBLK"): %lu -> "E3FSBLK"\n", i,
newblock, (unsigned long) le32_to_cpu(border),
oldblock);
/* copy indexes */
@@ -746,7 +746,7 @@ static int ext3_ext_split(handle_t *hand
BUG_ON(EXT_MAX_INDEX(path[i].p_hdr) !=
EXT_LAST_INDEX(path[i].p_hdr));
while (path[i].p_idx <= EXT_MAX_INDEX(path[i].p_hdr)) {
- ext_debug("%d: move %d:%d in new index %llu\n", i,
+ ext_debug("%d: move %d:%d in new index "E3FSBLK"\n", i,
le32_to_cpu(path[i].p_idx->ei_block),
idx_pblock(path[i].p_idx),
newblock);
@@ -827,7 +827,7 @@ static int ext3_ext_grow_indepth(handle_
struct ext3_extent_header *neh;
struct ext3_extent_idx *fidx;
struct buffer_head *bh;
- unsigned long newblock;
+ ext3_fsblk_t newblock;
int err = 0;

newblock = ext3_ext_new_block(handle, inode, path, newext, &err);
@@ -879,7 +879,7 @@ static int ext3_ext_grow_indepth(handle_

neh = ext_inode_hdr(inode);
fidx = EXT_FIRST_INDEX(neh);
- ext_debug("new root: num %d(%d), lblock %d, ptr %llu\n",
+ ext_debug("new root: num %d(%d), lblock %d, ptr "E3FSBLK"\n",
le16_to_cpu(neh->eh_entries), le16_to_cpu(neh->eh_max),
le32_to_cpu(fidx->ei_block), idx_pblock(fidx));

@@ -1114,7 +1114,7 @@ int ext3_ext_insert_extent(handle_t *han

/* try to insert block into found extent and return */
if (ex && ext3_can_extents_be_merged(inode, ex, newext)) {
- ext_debug("append %d block to %d:%d (from %lld)\n",
+ ext_debug("append %d block to %d:%d (from "E3FSBLK")\n",
le16_to_cpu(newext->ee_len),
le32_to_cpu(ex->ee_block),
le16_to_cpu(ex->ee_len), ext_pblock(ex));
@@ -1173,7 +1173,7 @@ has_space:

if (!nearex) {
/* there is no extent in this leaf, create first one */
- ext_debug("first extent in the leaf: %d:%lld:%d\n",
+ ext_debug("first extent in the leaf: %d:"E3FSBLK":%d\n",
le32_to_cpu(newext->ee_block),
ext_pblock(newext),
le16_to_cpu(newext->ee_len));
@@ -1185,7 +1185,7 @@ has_space:
len = EXT_MAX_EXTENT(eh) - nearex;
len = (len - 1) * sizeof(struct ext3_extent);
len = len < 0 ? 0 : len;
- ext_debug("insert %d:%lld:%d after: nearest 0x%p, "
+ ext_debug("insert %d:"E3FSBLK":%d after: nearest 0x%p, "
"move %d from 0x%p to 0x%p\n",
le32_to_cpu(newext->ee_block),
ext_pblock(newext),
@@ -1198,7 +1198,7 @@ has_space:
BUG_ON(newext->ee_block == nearex->ee_block);
len = (EXT_MAX_EXTENT(eh) - nearex) * sizeof(struct ext3_extent);
len = len < 0 ? 0 : len;
- ext_debug("insert %d:%lld:%d before: nearest 0x%p, "
+ ext_debug("insert %d:"E3FSBLK":%d before: nearest 0x%p, "
"move %d from 0x%p to 0x%p\n",
le32_to_cpu(newext->ee_block),
ext_pblock(newext),
@@ -1432,11 +1432,11 @@ ext3_ext_in_cache(struct inode *inode, u
ex->ee_block = cpu_to_le32(cex->ec_block);
ext3_ext_store_pblock(ex, cex->ec_start);
ex->ee_len = cpu_to_le16(cex->ec_len);
- ext_debug("%lu cached by %lu:%lu:%lu\n",
+ ext_debug("%lu cached by %lu:%lu:"E3FSBLK"\n",
(unsigned long) block,
(unsigned long) cex->ec_block,
(unsigned long) cex->ec_len,
- (unsigned long) cex->ec_start);
+ cex->ec_start);
return cex->ec_type;
}

@@ -1454,7 +1454,7 @@ int ext3_ext_rm_idx(handle_t *handle, st
{
struct buffer_head *bh;
int err;
- unsigned long leaf;
+ ext3_fsblk_t leaf;

/* free index block */
path--;
@@ -1465,7 +1465,7 @@ int ext3_ext_rm_idx(handle_t *handle, st
path->p_hdr->eh_entries = cpu_to_le16(le16_to_cpu(path->p_hdr->eh_entries)-1);
if ((err = ext3_ext_dirty(handle, inode, path)))
return err;
- ext_debug("index is empty, remove it, free block %lu\n", leaf);
+ ext_debug("index is empty, remove it, free block "E3FSBLK"\n", leaf);
bh = sb_find_get_block(inode->i_sb, leaf);
ext3_forget(handle, 1, inode, bh, leaf);
ext3_free_blocks(handle, inode, leaf, 1);
@@ -1547,10 +1547,11 @@ static int ext3_remove_blocks(handle_t *
if (from >= le32_to_cpu(ex->ee_block)
&& to == le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len) - 1) {
/* tail removal */
- unsigned long num, start;
+ unsigned long num;
+ ext3_fsblk_t start;
num = le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len) - from;
start = ext_pblock(ex) + le16_to_cpu(ex->ee_len) - num;
- ext_debug("free last %lu blocks starting %lu\n", num, start);
+ ext_debug("free last %lu blocks starting "E3FSBLK"\n", num, start);
for (i = 0; i < num; i++) {
bh = sb_find_get_block(inode->i_sb, start + i);
ext3_forget(handle, 0, inode, bh, start + i);
@@ -1664,7 +1665,7 @@ ext3_ext_rm_leaf(handle_t *handle, struc
if (err)
goto out;

- ext_debug("new extent: %u:%u:%llu\n", block, num,
+ ext_debug("new extent: %u:%u:"E3FSBLK"\n", block, num,
ext_pblock(ex));
ex--;
ex_ee_block = le32_to_cpu(ex->ee_block);
@@ -1780,7 +1781,7 @@ int ext3_ext_remove_space(struct inode *
path[i].p_idx);
if (ext3_ext_more_to_rm(path + i)) {
/* go to the next level */
- ext_debug("move to level %d (block %llu)\n",
+ ext_debug("move to level %d (block "E3FSBLK")\n",
i + 1, idx_pblock(path[i].p_idx));
memset(path + i + 1, 0, sizeof(*path));
path[i+1].p_bh =
@@ -1883,13 +1884,14 @@ void ext3_ext_release(struct super_block
#endif
}

-int ext3_ext_get_blocks(handle_t *handle, struct inode *inode, sector_t iblock,
+int ext3_ext_get_blocks(handle_t *handle, struct inode *inode, ext3_fsblk_t iblock,
unsigned long max_blocks, struct buffer_head *bh_result,
int create, int extend_disksize)
{
struct ext3_ext_path *path = NULL;
struct ext3_extent newex, *ex;
- int goal, newblock, err = 0, depth;
+ ext3_fsblk_t goal, newblock;
+ int err = 0, depth;
unsigned long allocated = 0;

__clear_bit(BH_New, &bh_result->b_state);
@@ -1939,14 +1941,14 @@ int ext3_ext_get_blocks(handle_t *handle

if ((ex = path[depth].p_ext)) {
unsigned long ee_block = le32_to_cpu(ex->ee_block);
- unsigned long ee_start = ext_pblock(ex);
+ ext3_fsblk_t ee_start = ext_pblock(ex);
unsigned short ee_len = le16_to_cpu(ex->ee_len);
/* if found exent covers block, simple return it */
if (iblock >= ee_block && iblock < ee_block + ee_len) {
newblock = iblock - ee_block + ee_start;
/* number of remain blocks in the extent */
allocated = ee_len - (iblock - ee_block);
- ext_debug("%d fit into %lu:%d -> %d\n", (int) iblock,
+ ext_debug("%d fit into %lu:%d -> "E3FSBLK"\n", (int) iblock,
ee_block, ee_len, newblock);
ext3_ext_put_in_cache(inode, ee_block, ee_len,
ee_start, EXT3_EXT_CACHE_EXTENT);
@@ -1970,7 +1972,7 @@ int ext3_ext_get_blocks(handle_t *handle
newblock = ext3_new_blocks(handle, inode, goal, &allocated, &err);
if (!newblock)
goto out2;
- ext_debug("allocate new block: goal %d, found %d/%lu\n",
+ ext_debug("allocate new block: goal "E3FSBLK", found "E3FSBLK"/%lu\n",
goal, newblock, allocated);

/* try to insert new extent into found leaf and return */
diff -puN include/linux/ext3_fs_extents.h~ext3-extents-ext3_fsblk_t include/linux/ext3_fs_extents.h
--- linux-2.6.16/include/linux/ext3_fs_extents.h~ext3-extents-ext3_fsblk_t 2006-06-08 17:35:34.874613679 -0700
+++ linux-2.6.16-ming/include/linux/ext3_fs_extents.h 2006-06-08 17:35:34.885612399 -0700
@@ -108,7 +108,7 @@ struct ext3_extent_header {
* truncate uses it to simulate recursive walking
*/
struct ext3_ext_path {
- __u64 p_block;
+ ext3_fsblk_t p_block;
__u16 p_depth;
struct ext3_extent *p_ext;
struct ext3_extent_idx *p_idx;
diff -puN include/linux/ext3_fs_i.h~ext3-extents-ext3_fsblk_t include/linux/ext3_fs_i.h
--- linux-2.6.16/include/linux/ext3_fs_i.h~ext3-extents-ext3_fsblk_t 2006-06-08 17:35:34.877613330 -0700
+++ linux-2.6.16-ming/include/linux/ext3_fs_i.h 2006-06-08 17:35:34.886612283 -0700
@@ -68,10 +68,10 @@ struct ext3_block_alloc_info {
* storage for cached extent
*/
struct ext3_ext_cache {
- sector_t ec_start;
- __u32 ec_block;
- __u32 ec_len; /* must be 32bit to return holes */
- __u32 ec_type;
+ ext3_fsblk_t ec_start;
+ __u32 ec_block;
+ __u32 ec_len; /* must be 32bit to return holes */
+ __u32 ec_type;
};

/*
_


-
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