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[PATCH] pass b_size to ->get_block()

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Pass amount of disk needs to be mapped to get_block().  This way one can
modify the fs ->get_block() functions to map multiple blocks at the same time.

[[email protected]: performance tweak]
[[email protected]: remove unneeded assignments]
Signed-off-by: Badari Pulavarty <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Badari Pulavarty 2006-03-26 01:38:00 -08:00 • committed by Linus Torvalds
commit b0cf2321c6
3 changed files with 11 additions and 1 deletions
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2
fs/mpage.c
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@ -192,6 +192,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
page_block++, block_in_file++) {
bh.b_state = 0;
if (block_in_file < last_block) {
bh.b_size = blocksize;
if (get_block(inode, block_in_file, &bh, 0))
goto confused;
}
@ -472,6 +473,7 @@ __mpage_writepage(struct bio *bio, struct page *page, get_block_t get_block,
for (page_block = 0; page_block < blocks_per_page; ) {
map_bh.b_state = 0;
map_bh.b_size = 1 << blkbits;
if (get_block(inode, block_in_file, &map_bh, 1))
goto confused;
if (buffer_new(&map_bh))