Re: [PATCH] f2fs-toos: use getpagesize() to get default blocksize in Android

From: Jaegeuk Kim
Date: Mon Oct 07 2024 - 12:50:15 EST


On 09/19, Zhiguo Niu wrote:
> Hi all,
> please ignore this patch, we can resove this by "-b" parameter .
> thanks!

Ok, thanks.

> Zhiguo Niu <zhiguo.niu@xxxxxxxxxx> 于2024年9月14日周六 11:12写道:
> >
> > When 16K page/block size is enabled in Android platform,
> > a error maybe detected in mount process in kernel if "-b"
> > parameters is not specified in mkfs.f2fs.
> > Just as the following check:
> > if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS)
> >
> > So use getpagesize() to get correct default blocksize.
> >
> > Signed-off-by: Zhiguo Niu <zhiguo.niu@xxxxxxxxxx>
> > Signed-off-by: Xiuhong Wang <xiuhong.wang@xxxxxxxxxx>
> > ---
> > lib/libf2fs.c | 9 +++++++++
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/lib/libf2fs.c b/lib/libf2fs.c
> > index ecd22d4..98ee0ae 100644
> > --- a/lib/libf2fs.c
> > +++ b/lib/libf2fs.c
> > @@ -685,8 +685,17 @@ void f2fs_init_configuration(void)
> >
> > memset(&c, 0, sizeof(struct f2fs_configuration));
> > c.ndevs = 1;
> > +#ifdef WITH_ANDROID
> > + c.blksize = getpagesize();
> > + c.blksize_bits = log_base_2(c.blksize);
> > + if ((1 << c.blksize_bits) != c.blksize) {
> > + c.blksize = 1 << DEFAULT_BLKSIZE_BITS;
> > + c.blksize_bits = DEFAULT_BLKSIZE_BITS;
> > + }
> > +#else
> > c.blksize = 1 << DEFAULT_BLKSIZE_BITS;
> > c.blksize_bits = DEFAULT_BLKSIZE_BITS;
> > +#endif
> > c.sectors_per_blk = DEFAULT_SECTORS_PER_BLOCK;
> > c.blks_per_seg = DEFAULT_BLOCKS_PER_SEGMENT;
> > c.wanted_total_sectors = -1;
> > --
> > 1.9.1
> >