Messages in this thread | | | Date | Mon, 17 Jun 2002 11:42:51 -0700 | From | Andrew Morton <> | Subject | Re: [patch 10/19] direct-to-BIO I/O for swapcache pages |
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Andreas Dilger wrote: > > On Jun 16, 2002 23:52 -0700, Andrew Morton wrote: > > This patch changes the swap I/O handling. The objectives are: > > > > At swapon time (for an S_ISBLK swapfile), we install a single swap extent > > which describes the entire device. > > > > + inode = sis->swap_file->f_dentry->d_inode; > > + if (S_ISBLK(inode->i_mode)) { > > + ret = add_swap_extent(sis, 0, sis->max, 0); > > + goto done; > > + } > > I believe it is possible to have blocks marked bad in the swap header, > even for a block device, so this will try to use those bad blocks.
Well, this establishes the page index -> sector mapping for those blocks. But the actual block allocator will not hand out the SWP_MAP_BAD blocks in the first place. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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