[f2fs-dev] [PATCH] f2fs: add gc_urgent_high_remaining sysfs node

2021-12-07 Thread Daeho Jeong
From: Daeho Jeong Added a new sysfs node called gc_urgent_high_remaining. The user can set the trial count limit for GC urgent high mode with this value. If GC thread gets to the limit, the mode will turn back to GC normal mode. By default, the value is zero, which means there is no limit like be

Re: [f2fs-dev] [syzbot] BUG: unable to handle kernel NULL pointer dereference in folio_mark_dirty

2021-12-07 Thread Jaegeuk Kim
On 12/07, Matthew Wilcox wrote: > On Mon, Dec 06, 2021 at 05:56:31PM -0800, Andrew Morton wrote: > > On Sat, 04 Dec 2021 01:55:17 -0800 syzbot > > wrote: > > > > > Hello, > > > > > > syzbot found the following issue on: > > > > > > HEAD commit:58e1100fdc59 MAINTAINERS: co-maintain random.c

Re: [f2fs-dev] Multi device fs and udev

2021-12-07 Thread Jaegeuk Kim
On 12/05, Ananth Bhaskararaman wrote: > I have a multi-disk f2fs device, and when I run lsblk, it shows the fs > only on the main device. > I'd like all devices to show up with the mounted fs like btrfs > multi-device arrays. > I'd also like udev to recognise that both devices are used by this fs.

Re: [f2fs-dev] [syzbot] BUG: unable to handle kernel NULL pointer dereference in folio_mark_dirty

2021-12-07 Thread Matthew Wilcox
On Tue, Dec 07, 2021 at 01:39:06PM -0800, Jaegeuk Kim wrote: > On 12/07, Matthew Wilcox wrote: > > > > Call Trace: > > > > > > > > folio_mark_dirty+0x136/0x270 mm/page-writeback.c:2639 > > > > if (likely(mapping)) { > > ... > > if (folio_test_reclaim(folio)) > >

Re: [f2fs-dev] [syzbot] BUG: unable to handle kernel NULL pointer dereference in folio_mark_dirty

2021-12-07 Thread Jaegeuk Kim
On 12/07, Matthew Wilcox wrote: > On Tue, Dec 07, 2021 at 01:39:06PM -0800, Jaegeuk Kim wrote: > > On 12/07, Matthew Wilcox wrote: > > > > > Call Trace: > > > > > > > > > > folio_mark_dirty+0x136/0x270 mm/page-writeback.c:2639 > > > > > > if (likely(mapping)) { > > > ... > > >