On Tue 09-11-21 19:07:26, Ming Lei wrote: > On Tue, Nov 09, 2021 at 07:47:21PM +0900, Shin'ichiro Kawasaki wrote: > > When BLKDISCARD or BLKZEROOUT ioctl race with data read, stale page cache is > > left. This patch series have two fox patches for the stale page cache. Same > > fix approach was used as blkdev_fallocate() [1]. > > > > [1] https://marc.info/?l=linux-block&m=163236463716836 > > > > Shin'ichiro Kawasaki (2): > > block: Hold invalidate_lock in BLKDISCARD ioctl > > block: Hold invalidate_lock in BLKZEROOUT ioctl > > > > block/ioctl.c | 24 ++++++++++++++++++------ > > 1 file changed, 18 insertions(+), 6 deletions(-) > > Yeah, the discard ioctl needs such fixes too, seems it isn't triggered > in the test disk of my test VM when running block/009. > > BTW, BLKRESETZONE may need the fix too. Yeah, it seems like that. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
