[PATCH] change buffer_head.b_size to size_t
Increase the size of the buffer_head b_size field (only) for 64 bit platforms.
Update some old and moldy comments in and around the structure as well.
The b_size increase allows us to perform larger mappings and allocations for
large I/O requests from userspace, which tie in with other changes allowing
the get_block_t() interface to map multiple blocks at once.
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/buffer.c b/fs/buffer.c
index f25f580..e7a1461 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -426,8 +426,10 @@
if (all_mapped) {
printk("__find_get_block_slow() failed. "
"block=%llu, b_blocknr=%llu\n",
- (unsigned long long)block, (unsigned long long)bh->b_blocknr);
- printk("b_state=0x%08lx, b_size=%u\n", bh->b_state, bh->b_size);
+ (unsigned long long)block,
+ (unsigned long long)bh->b_blocknr);
+ printk("b_state=0x%08lx, b_size=%zu\n",
+ bh->b_state, bh->b_size);
printk("device blocksize: %d\n", 1 << bd_inode->i_blkbits);
}
out_unlock:
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 9064192..6a610ae 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -377,7 +377,7 @@
BUG_ON(!bh);
BUG_ON(!(handle->flags & OCFS2_HANDLE_STARTED));
- mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %hu\n",
+ mlog_entry("bh->b_blocknr=%llu, type=%d (\"%s\"), bh->b_size = %zu\n",
(unsigned long long)bh->b_blocknr, type,
(type == OCFS2_JOURNAL_ACCESS_CREATE) ?
"OCFS2_JOURNAL_ACCESS_CREATE" :
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 78b4062..27bd3a1 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -143,7 +143,7 @@
char b[BDEVNAME_SIZE];
sprintf(buf,
- "dev %s, size %d, blocknr %llu, count %d, state 0x%lx, page %p, (%s, %s, %s)",
+ "dev %s, size %zd, blocknr %llu, count %d, state 0x%lx, page %p, (%s, %s, %s)",
bdevname(bh->b_bdev, b), bh->b_size,
(unsigned long long)bh->b_blocknr, atomic_read(&(bh->b_count)),
bh->b_state, bh->b_page,