loff_t length,
> iomap->flags = IOMAP_F_MERGED;
> iomap->bdev = map.m_bdev;
> iomap->addr = F2FS_BLK_TO_BYTES(map.m_pblk);
> +
> + if (flags & IOMAP_WRITE && map.m_last_pblk)
> +
-rocontinuepanic
> mountoption")
> Reported-by: syzbot+be4a9983e95a5e25c...@syzkaller.appspotmail.com
> Closes:
> https://lore.kernel.org/all/6704d667.050a0220.1e4d62.0081@google.com
> Signed-off-by: Chao Yu
Reviewed-by: Daejun Park
___
Hi Chao Yu,
>
>- Original Message -
>Sender : Chao Yu via Linux-f2fs-devel
>Date : 2024-10-22 15:21 (GMT+9)
>Title : [f2fs-dev] [PATCH] f2fs: fix to avoid potential deadlock in
>f2fs_record_stop_reason()
>
>syzbot reports deadlock issue of f2fs as below:
>
>===
>- Original Message -
>Sender : Daeho Jeong
>Date : 2024-10-11 05:42 (GMT+9)
>Title : Re: [f2fs-dev] [PATCH] f2fs: support dio write for zoned storage
>
>On Fri, Sep 27, 2024 at 12:25 AM Daejun Park wrote:
>>
>> With zoned storage, F2FS avoids dire
semephores to serialize
block allocation and writes per zone.
Signed-off-by: Daejun Park
---
fs/f2fs/data.c| 28 ++-
fs/f2fs/f2fs.h| 7 +--
fs/f2fs/file.c| 48 ---
fs/f2fs/gc.c | 4 ++--
fs/f2fs/segment.c | 6
is not contiguous. However, the block already allocated
in this process will remain unused due to the LFS mode.
This patch avoids the possibility of unused blocks by escaping
f2fs_map_blocks() when allocating the last block in a section.
Signed-off-by: Daejun Park
---
v2: Applied segment check
This patch enables support for write hints by segment type.
Signed-off-by: Daejun Park
---
v2:
- Add -H option for write hint enabling.
- Keep last write hint to reduce fnctl call.
configure.ac| 2 +
fsck/defrag.c | 5 +-
fsck/dir.c | 27
Hi Chao Yu,
>
>- Original Message -
>Sender : Chao Yu
>Date : 2024-08-16 10:56 (GMT+9)
>Title : Re: (2) [PATCH] f2fs: avoid unused block when dio write in LFS mode
>
>On 2024/8/16 8:17, Daejun Park wrote:
>> Hi Chao Yu,
>>>
>>> --
Hi Chao Yu,
>
>- Original Message -
>Sender : Chao Yu
>Date : 2024-08-15 12:33 (GMT+9)
>Title : Re: [PATCH] f2fs-tools: add write hint support
>
>On 2024/8/9 15:32, Daejun Park wrote:
>> This patch enables support for write hints by segment type.
>
Hi Chao Yu,
>
>- Original Message -
>Sender : Chao Yu
>Date : 2024-08-14 18:50 (GMT+9)
>Title : Re: [PATCH] f2fs: avoid unused block when dio write in LFS mode
>
>On 2024/8/1 15:47, Daejun Park wrote:
>> This patch addresses the problem that when us
This patch enables support for write hints by segment type.
Signed-off-by: Daejun Park
---
configure.ac| 2 +
fsck/defrag.c | 5 +-
fsck/dir.c | 27 +++---
fsck/fsck.c | 24 +
fsck/inject.c | 4 +-
fsck/mount.c
is not contiguous. However, the block already allocated
in this process will remain unused due to the LFS mode.
This patch avoids the possibility of unused blocks by escaping
f2fs_map_blocks() when allocating the last block in a section.
Signed-off-by: Daejun Park
---
fs/f2fs/data.c | 13
Hi Chao Yu,
>
>- Original Message -
>Sender : Chao Yu
>Date : 2024-07-04 16:16 (GMT+9)
>Title : Re: [PATCH] f2fs: fix null reference error when checking end of zone
>
>On 2024/7/4 9:01, Daejun Park wrote:
>> This patch fixes a potentially nul
This patch fixes a potentially null pointer being accessed by
is_end_zone_blkaddr() that checks the last block of a zone
when f2fs is mounted as a single device.
Fixes: e067dc3c6b9c ("f2fs: maintain six open zones for zoned devices")
Signed-off-by: Daejun Park
---
fs/f2fs/data.c |
Hi Chao,
>
>It looks complicated to enable single_node_sec mode dynamically, what do
>you think of making this as a feature which can only be eanbled by mkfs?
I think it is good idea, I will change this patch for mkfs tool.
Thanks,
Daejun
___
Linux
>On 2024/6/20 15:22, Daejun Park wrote:
>>> On 2024/6/20 13:56, Daejun Park wrote:
>>>> Hi Chao,
>>>>
>>>>> Jaegeuk,
>>>>>
>>>>> Quoted commit message from commit c550e25bca66 ("f2fs: use flush command
>>&g
>On 2024/6/20 13:56, Daejun Park wrote:
>> Hi Chao,
>>
>>> Jaegeuk,
>>>
>>> Quoted commit message from commit c550e25bca66 ("f2fs: use flush command
>>> instead of FUA for zoned device")
>>> "
>>> The block laye
Hi Chao,
> Jaegeuk,
>
> Quoted commit message from commit c550e25bca66 ("f2fs: use flush command
> instead of FUA for zoned device")
> "
> The block layer for zoned disk can reorder the FUA'ed IOs. Let's use flush
> command to keep the write order.
> "
>
> It seems mq-deadline use fifo queue and
node section, add the 'single_node_sec' in mount option.
The single node section mode can be activated when the number of active
logs is equal to 6.
Signed-off-by: Daejun Park
---
Documentation/filesystems/f2fs.rst | 2 +
fs/f2fs/f2fs.h | 3 ++
fs/f2fs/
> On 2024/6/12 10:20, Daejun Park wrote:
> > syzbot reported a bug in f2fs_vm_page_mkwrite() which checks for
> > f2fs_has_inline_data(inode).
> > The bug was caused by f2fs_convert_inline_inode() not returning an
> > error when called on a read-only filesystem, but re
that f2fs_convert_inline_inode()
returns -EROFS on readonly.
Fixes: ec2ddf499402 ("f2fs: don't allow any writes on readonly mount")
Reported-by: syzbot+f195123a45ad487ca...@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=f195123a45ad487ca66c
Signed-off-
> Hi Daejun,
> 1. It is not compatible with "F2FS_OPTION(sbi).active_logs == 2".
> 2. Once has_enough_free_secs is false, F2FS cannot restore to multi-node
> sections even after has_enough_free_secs becomes true and the filesystem
> is unmounted and remounted. This seems unreasonable.
Hi Yongpeng
node section, add the 'single_node_sec' in mount option.
Signed-off-by: Daejun Park
---
Documentation/filesystems/f2fs.rst | 2 +
fs/f2fs/f2fs.h | 3 ++
fs/f2fs/recovery.c | 3 ++
fs/f2fs/segment.c | 77 +
Hi Jaegeuk,
> If there're huge # of small discards, this will increase checkpoint latency
> insanely. Let's issue small discards only by trim.
>
> Signed-off-by: Jaegeuk Kim
> ---
> fs/f2fs/segment.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/fs/f2fs/segment.
> On 05/11, Daejun Park wrote:
> > > Sender : Jaegeuk Kim
> > > Date : 2023-05-10 03:53 (GMT+9)
> > > Title : Re: [PATCH v6] f2fs: add async reset zone command support
> > > To : 박대준
> > > CC : c...@kernel.org,
> > > rost...@goodmis
.@vger.kernel.org,
> linux-trace-ker...@vger.kernel.org,
> 김석환, 송용길,
> 김범수
>
> On 05/08, Daejun Park wrote:
> > v5 -> v6
> > Added trace_f2fs_iostat support for zone reset command.
> >
> > v4 -> v5
> > Added f2fs iostat for zone reset command.
zation scenario by
faster checkpointing.
Signed-off-by: Daejun Park
---
fs/f2fs/f2fs.h | 1 +
fs/f2fs/iostat.c| 1 +
fs/f2fs/segment.c | 84 +++--
include/trace/events/f2fs.h | 24 +--
4 files changed, 104 insertions(
reviously incorrectly merged.
v1 -> v2
Changed to apply the optional async reset write pointer by default.
This patch enables submit reset zone command asynchornously. It helps
decrease average latency of write IOs in high utilization scenario by
faster checkpointing.
Signed-off-by: Daejun P
,
> linux-f2fs-devel@lists.sourceforge.net,
> linux-ker...@vger.kernel.org,
> linux-trace-ker...@vger.kernel.org
> CC : 김석환, 송용길,
> 김범수
>
> On 2023/5/2 12:16, Daejun Park wrote:
> > Changelog:
> >
> > v3 -> v4
> > Fixed build error caused by un
hanged to apply the optional async reset write pointer by default.
This patch enables submit reset zone command asynchornously. It helps
decrease average latency of write IOs in high utilization scenario by
faster checkpointing.
Signed-off-by: Daejun Park
---
fs/f2fs/segment.c
efault.
This patch enables submit reset zone command asynchornously. It helps
decrease average latency of write IOs in high utilization scenario by
faster checkpointing.
Signed-off-by: Daejun Park
---
fs/f2fs/segment.c | 85 ++---
include/trace/events/
Thank you for your review. I have responded in the comments below.
> On 2023/4/25 16:10, Daejun Park wrote:
> > Changelog:
> >
> > v1 -> v2
> > Changed to apply the optional async reset write pointer by default.
> >
> >
> > This patch enables su
Changelog:
v1 -> v2
Changed to apply the optional async reset write pointer by default.
This patch enables submit reset zone command asynchornously. It helps
decrease average latency of write IOs in high utilization scenario by
faster checkpointing.
Signed-off-by: Daejun Park
---
fs/f
Hi Jeageuk,
Thanks for helpful review.
>
> On 04/14, Daejun Park wrote:
> > This patch enables submit reset zone command asynchornously. It helps
> > decrease average latency of write IOs in high utilization scenario by
> > faster checkpointing.
> >
This patch enables submit reset zone command asynchornously. It helps
decrease average latency of write IOs in high utilization scenario by
faster checkpointing.
Signed-off-by: Daejun Park
---
Documentation/filesystems/f2fs.rst | 4 ++
fs/f2fs/f2fs.h | 1 +
fs/f2fs
policy is applied, so it
is can not be defragmented.
This patch temporarily clears the cold bit so that the file can be
defragmented.
Signed-off-by: Daejun Park
---
fs/f2fs/file.c | 17 -
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs
>On 05/11, Chao Yu wrote:
>> On 2021/5/11 14:41, Daejun Park wrote:
>> > > On 2021/5/11 13:09, Jaegeuk Kim wrote:
>> > > > On 05/11, Chao Yu wrote:
>> > > > > On 2021/5/10 22:47, Jaegeuk Kim wrote:
>> > > > > > O
>On 2021/5/11 13:09, Jaegeuk Kim wrote:
>> On 05/11, Chao Yu wrote:
>>> On 2021/5/10 22:47, Jaegeuk Kim wrote:
>>>> On 05/06, Chao Yu wrote:
>>>>> On 2021/5/6 12:46, Jaegeuk Kim wrote:
>>>>>> On 05/06, Chao Yu wrote:
>>>>
This patch separates the APIs for nat and sit.
f2fs_lookup_journal_in_cursum -> f2fs_lookup_journal_{nats|sits}_in_cursum
__has_cursum_space -> __has_{nats|sits}_in_cursum_space
Signed-off-by: Daejun Park
---
fs/f2fs/f2fs.h| 16 +++-
fs/f2fs/node.c| 11 +--
f
In file defragmentation by ioctl, all data blocks in the file are
re-written out-of-place. File defragmentation implies user will not update
and mostly read the file. So before the defragmentation, we set file
temperature as cold for better block allocation.
Signed-off-by: Daejun Park
---
fs
the wrong stream seperation.
* Liang, Yu, et al. "An empirical study of F2FS on mobile devices." 2017
IEEE 23rd International Conference on Embedded and Real-Time Computing
Systems and Applications (RTCSA).
Signed-off-by: Daejun Park
---
v2: update documentation and comments
---
Doc
>>>From 818a76a9aee5bf225565264274d211edb07bae7d Mon Sep 17 00:00:00 2001
>> From: Daejun Park
>> Date: Tue, 3 Nov 2020 15:30:26 +0900
>>
>>
>> In the fs-based mode of F2FS, the mapping of hot/warm node to
>> WRITE_LIFE_NOT_SET should be chang
>From 818a76a9aee5bf225565264274d211edb07bae7d Mon Sep 17 00:00:00 2001
From: Daejun Park
Date: Tue, 3 Nov 2020 15:30:26 +0900
In the fs-based mode of F2FS, the mapping of hot/warm node to
WRITE_LIFE_NOT_SET should be changed to WRITE_LIFE_SHORT.
As a result of analyzing the write pattern
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