Re: [LTP] [PATCH v3 1/2] libswap: add two methods to create swapfile

[Petr Vorel <pvorel@suse.cz>]

Hi Li,

> Petr Vorel <pvorel@suse.cz> wrote:

> > > Thanks, I would give the patch set more time in case others have
> > comments.

> > Sure. Thanks for a nice work!


> Patch set applied.

FYI it looks like this patch merge as:

f987ffff5 ("libswap: add two methods to create swapfile")

introduced TWARN on all tests which touched: swapoff0[12], swapon0[1-3] on openSUSE Tumbleweed
on ppc64le (e.g. very close to mainline stable kernels: 6.8.x). Have you noticed
this on Fedora as well?  I hope to manage to have look on it soon, but maybe
it's obvious to you already.

libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).

Example of the warning:

* swapoff01
on all of the filesystems:
tst_test.c:1701: TINFO: === Testing on ext2 ===
tst_test.c:1117: TINFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
mke2fs 1.47.0 (5-Feb-2023)
tst_test.c:1131: TINFO: Mounting /dev/loop0 to /var/tmp/LTP_swaWdvJcZ/mntpoint fstyp=ext2 flags=0
libswap.c:156: TINFO: create a swapfile with 10 block numbers
libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).

* swapon03
tst_test.c:1701: TINFO: === Testing on ext2 ===
tst_test.c:1117: TINFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
mke2fs 1.47.0 (5-Feb-2023)
tst_test.c:1131: TINFO: Mounting /dev/loop0 to /var/tmp/LTP_swalq2Qxc/mntpoint fstyp=ext2 flags=0
libswap.c:156: TINFO: create a swapfile with 10 block numbers
libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).
tst_ioctl.c:26: TINFO: FIBMAP ioctl is supported
tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz'
tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz'
tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz'
tst_kconfig.c:88: TINFO: Parsing kernel config '/proc/config.gz'
libswap.c:156: TINFO: create a swapfile with 10 block numbers
libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).
libswap.c:156: TINFO: create a swapfile with 10 block numbers
libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).
libswap.c:156: TINFO: create a swapfile with 10 block numbers
libswap.c:163: TWARN: Swapfile size is less than the system page size. Using page size (65536 bytes) instead of block size (4096 bytes).
...

Kind regards,
Petr

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