On Wed 04-11-15 15:58:34, yalin wang wrote: > The last block should be the total read pages last block, > need adjust the block number when caculate every page. > > Signed-off-by: yalin wang <yalin.wang2010@xxxxxxxxx> > --- > fs/ext4/readpage.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c > index 5dc5e95..d20c39d 100644 > --- a/fs/ext4/readpage.c > +++ b/fs/ext4/readpage.c > @@ -174,7 +174,7 @@ int ext4_mpage_readpages(struct address_space *mapping, > goto confused; > > block_in_file = (sector_t)page->index << (PAGE_CACHE_SHIFT - blkbits); > - last_block = block_in_file + nr_pages * blocks_per_page; > + last_block = block_in_file + (nr_pages - page_idx) * blocks_per_page; I don't think your patch is correct. The for loop decrements nr_pages at each iteration so the original code looks fine... Or which problems do you observe? Honza > last_block_in_file = (i_size_read(inode) + blocksize - 1) >> blkbits; > if (last_block > last_block_in_file) > last_block = last_block_in_file; > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
