On Wed, Feb 26, 2020 at 09:05:07AM -0800, Christoph Hellwig wrote:
> On Tue, Feb 25, 2020 at 01:48:30PM -0800, Matthew Wilcox wrote:
> > From: "Matthew Wilcox (Oracle)"
> >
> > Implement the new readahead method in btrfs. Add a readahead_page_batch()
> > to optimise fetching a batch of pages at
Add zstd compress algorithm support, use "compress_algorithm=zstd"
mountoption to enable it.
Signed-off-by: Chao Yu
---
Documentation/filesystems/f2fs.txt | 4 +-
fs/f2fs/Kconfig| 9 ++
fs/f2fs/compress.c | 151 +
fs/f2fs/f2fs.h
In compress cluster, if physical block number is less than logic
page number, race condition will cause use-after-free issue as
described below:
- f2fs_write_compressed_pages
- fio.page = cic->rpages[0];
- f2fs_outplace_write_data
- f2fs_compress_write_end
Hi Sahitya,
Good catch.
On 2020/2/27 18:39, Sahitya Tummala wrote:
> Even though online resize is successfully done, a SPO immediately
> after resize, still causes below error in the next mount.
>
> [ 11.294650] F2FS-fs (sda8): Wrong user_block_count: 2233856
> [ 11.300272] F2FS-fs (sda8): F
On 2020/2/28 2:30, Jaegeuk Kim wrote:
> On 02/27, Chao Yu wrote:
>> There are still reserved blocks on compressed inode, this patch
>> introduce a new ioctl to help release reserved blocks back to
>> filesystem, so that userspace can reuse those freed space.
>
> Hmm, once we release the blocks, wh
