Re: [PATCH 1/2] f2fs: split f2fs_allocate_new_segments()

2020-06-30 Thread Jaegeuk Kim
On 07/01, Chao Yu wrote:
> Jaegeuk, could you please help to change __allocate_new_segment() to static
> in your tree?

Sure. :)

> 
> On 2020/6/30 4:19, Jaegeuk Kim wrote:
> > On 06/22, Chao Yu wrote:
> >> to two independent functions:
> >> - f2fs_allocate_new_segment() for specified type segment allocation
> >> - f2fs_allocate_new_segments() for all data type segments allocation
> >>
> >> Signed-off-by: Chao Yu 
> >> ---
> >>  fs/f2fs/f2fs.h |  3 ++-
> >>  fs/f2fs/file.c |  2 +-
> >>  fs/f2fs/recovery.c |  2 +-
> >>  fs/f2fs/segment.c  | 39 +++
> >>  4 files changed, 27 insertions(+), 19 deletions(-)
> >>
> >> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> >> index 70565d81320b..07290943e91d 100644
> >> --- a/fs/f2fs/f2fs.h
> >> +++ b/fs/f2fs/f2fs.h
> >> @@ -3327,7 +3327,8 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info 
> >> *sbi);
> >>  int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
> >>  void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
> >>unsigned int start, unsigned int end);
> >> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
> >> +void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
> >> +void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
> >>  int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
> >>  bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
> >>struct cp_control *cpc);
> >> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> >> index f196187159e9..67c65e40b22b 100644
> >> --- a/fs/f2fs/file.c
> >> +++ b/fs/f2fs/file.c
> >> @@ -1659,7 +1659,7 @@ static int expand_inode_data(struct inode *inode, 
> >> loff_t offset,
> >>map.m_seg_type = CURSEG_COLD_DATA_PINNED;
> >>  
> >>f2fs_lock_op(sbi);
> >> -  f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
> >> +  f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
> > 
> > This should be CURSEG_COLD_DATA. Otherwise it causes the below kernel panic.
> > I fixed this in the -dev, so let me know, if you have other concern.
> > 
> >   259 Unable to handle kernel NULL pointer dereference at virtual address 
> > 0008
> >   259 task: 82b4de99 task.stack: c6b39dbf
> >   259 pc : f2fs_do_write_data_page+0x2b4/0x794
> >   259 lr : f2fs_do_write_data_page+0x290/0x794
> >   259 sp : ff800c83b5a0 pstate : 60c00145
> >   259 Call trace:
> >   259  f2fs_do_write_data_page+0x2b4/0x794
> >   259  f2fs_write_single_data_page+0x4a4/0x764
> >   259  f2fs_write_data_pages+0x4dc/0x968
> >   259  do_writepages+0x60/0x124
> >   259  __writeback_single_inode+0xd8/0x490
> >   259  writeback_sb_inodes+0x3a8/0x6e4
> >   259  __writeback_inodes_wb+0xa4/0x14c
> >   259  wb_writeback+0x218/0x434
> >   259  wb_workfn+0x2bc/0x57c
> >   259  process_one_work+0x25c/0x440
> >   259  worker_thread+0x24c/0x480
> >   259  kthread+0x11c/0x12c
> >   259  ret_from_fork+0x10/0x18
> > 
> >>f2fs_unlock_op(sbi);
> >>  
> >>err = f2fs_map_blocks(inode, , 1, F2FS_GET_BLOCK_PRE_DIO);
> >> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> >> index ae5310f02e7f..af974ba273b3 100644
> >> --- a/fs/f2fs/recovery.c
> >> +++ b/fs/f2fs/recovery.c
> >> @@ -742,7 +742,7 @@ static int recover_data(struct f2fs_sb_info *sbi, 
> >> struct list_head *inode_list,
> >>f2fs_put_page(page, 1);
> >>}
> >>if (!err)
> >> -  f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
> >> +  f2fs_allocate_new_segments(sbi);
> >>return err;
> >>  }
> >>  
> >> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> >> index 113114f98087..f15711e8ee5b 100644
> >> --- a/fs/f2fs/segment.c
> >> +++ b/fs/f2fs/segment.c
> >> @@ -2707,28 +2707,35 @@ void f2fs_allocate_segment_for_resize(struct 
> >> f2fs_sb_info *sbi, int type,
> >>up_read(_I(sbi)->curseg_lock);
> >>  }
> >>  
> >> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
> >> +void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
> >>  {
> >> -  struct curseg_info *curseg;
> >> +  struct curseg_info *curseg = CURSEG_I(sbi, type);
> >>unsigned int old_segno;
> >> -  int i;
> >>  
> >> -  down_write(_I(sbi)->sentry_lock);
> >> +  if (!curseg->next_blkoff &&
> >> +  !get_valid_blocks(sbi, curseg->segno, false) &&
> >> +  !get_ckpt_valid_blocks(sbi, curseg->segno))
> >> +  return;
> >>  
> >> -  for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
> >> -  if (type != NO_CHECK_TYPE && i != type)
> >> -  continue;
> >> +  old_segno = curseg->segno;
> >> +  SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
> >> +  locate_dirty_segment(sbi, old_segno);
> >> +}
> >>  
> >> -  curseg = CURSEG_I(sbi, i);
> >> -  if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
> >> -  

Re: [PATCH 1/2] f2fs: split f2fs_allocate_new_segments()

2020-06-30 Thread Chao Yu
Jaegeuk, could you please help to change __allocate_new_segment() to static
in your tree?

On 2020/6/30 4:19, Jaegeuk Kim wrote:
> On 06/22, Chao Yu wrote:
>> to two independent functions:
>> - f2fs_allocate_new_segment() for specified type segment allocation
>> - f2fs_allocate_new_segments() for all data type segments allocation
>>
>> Signed-off-by: Chao Yu 
>> ---
>>  fs/f2fs/f2fs.h |  3 ++-
>>  fs/f2fs/file.c |  2 +-
>>  fs/f2fs/recovery.c |  2 +-
>>  fs/f2fs/segment.c  | 39 +++
>>  4 files changed, 27 insertions(+), 19 deletions(-)
>>
>> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
>> index 70565d81320b..07290943e91d 100644
>> --- a/fs/f2fs/f2fs.h
>> +++ b/fs/f2fs/f2fs.h
>> @@ -3327,7 +3327,8 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info 
>> *sbi);
>>  int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
>>  void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
>>  unsigned int start, unsigned int end);
>> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
>> +void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
>> +void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
>>  int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
>>  bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
>>  struct cp_control *cpc);
>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
>> index f196187159e9..67c65e40b22b 100644
>> --- a/fs/f2fs/file.c
>> +++ b/fs/f2fs/file.c
>> @@ -1659,7 +1659,7 @@ static int expand_inode_data(struct inode *inode, 
>> loff_t offset,
>>  map.m_seg_type = CURSEG_COLD_DATA_PINNED;
>>  
>>  f2fs_lock_op(sbi);
>> -f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
>> +f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
> 
> This should be CURSEG_COLD_DATA. Otherwise it causes the below kernel panic.
> I fixed this in the -dev, so let me know, if you have other concern.
> 
>   259 Unable to handle kernel NULL pointer dereference at virtual address 
> 0008
>   259 task: 82b4de99 task.stack: c6b39dbf
>   259 pc : f2fs_do_write_data_page+0x2b4/0x794
>   259 lr : f2fs_do_write_data_page+0x290/0x794
>   259 sp : ff800c83b5a0 pstate : 60c00145
>   259 Call trace:
>   259  f2fs_do_write_data_page+0x2b4/0x794
>   259  f2fs_write_single_data_page+0x4a4/0x764
>   259  f2fs_write_data_pages+0x4dc/0x968
>   259  do_writepages+0x60/0x124
>   259  __writeback_single_inode+0xd8/0x490
>   259  writeback_sb_inodes+0x3a8/0x6e4
>   259  __writeback_inodes_wb+0xa4/0x14c
>   259  wb_writeback+0x218/0x434
>   259  wb_workfn+0x2bc/0x57c
>   259  process_one_work+0x25c/0x440
>   259  worker_thread+0x24c/0x480
>   259  kthread+0x11c/0x12c
>   259  ret_from_fork+0x10/0x18
> 
>>  f2fs_unlock_op(sbi);
>>  
>>  err = f2fs_map_blocks(inode, , 1, F2FS_GET_BLOCK_PRE_DIO);
>> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
>> index ae5310f02e7f..af974ba273b3 100644
>> --- a/fs/f2fs/recovery.c
>> +++ b/fs/f2fs/recovery.c
>> @@ -742,7 +742,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct 
>> list_head *inode_list,
>>  f2fs_put_page(page, 1);
>>  }
>>  if (!err)
>> -f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
>> +f2fs_allocate_new_segments(sbi);
>>  return err;
>>  }
>>  
>> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
>> index 113114f98087..f15711e8ee5b 100644
>> --- a/fs/f2fs/segment.c
>> +++ b/fs/f2fs/segment.c
>> @@ -2707,28 +2707,35 @@ void f2fs_allocate_segment_for_resize(struct 
>> f2fs_sb_info *sbi, int type,
>>  up_read(_I(sbi)->curseg_lock);
>>  }
>>  
>> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
>> +void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
>>  {
>> -struct curseg_info *curseg;
>> +struct curseg_info *curseg = CURSEG_I(sbi, type);
>>  unsigned int old_segno;
>> -int i;
>>  
>> -down_write(_I(sbi)->sentry_lock);
>> +if (!curseg->next_blkoff &&
>> +!get_valid_blocks(sbi, curseg->segno, false) &&
>> +!get_ckpt_valid_blocks(sbi, curseg->segno))
>> +return;
>>  
>> -for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
>> -if (type != NO_CHECK_TYPE && i != type)
>> -continue;
>> +old_segno = curseg->segno;
>> +SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
>> +locate_dirty_segment(sbi, old_segno);
>> +}
>>  
>> -curseg = CURSEG_I(sbi, i);
>> -if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
>> -get_valid_blocks(sbi, curseg->segno, false) ||
>> -get_ckpt_valid_blocks(sbi, curseg->segno)) {
>> -old_segno = curseg->segno;
>> -

Re: [PATCH 1/2] f2fs: split f2fs_allocate_new_segments()

2020-06-29 Thread Chao Yu
On 2020/6/30 4:19, Jaegeuk Kim wrote:
> On 06/22, Chao Yu wrote:
>> to two independent functions:
>> - f2fs_allocate_new_segment() for specified type segment allocation
>> - f2fs_allocate_new_segments() for all data type segments allocation
>>
>> Signed-off-by: Chao Yu 
>> ---
>>  fs/f2fs/f2fs.h |  3 ++-
>>  fs/f2fs/file.c |  2 +-
>>  fs/f2fs/recovery.c |  2 +-
>>  fs/f2fs/segment.c  | 39 +++
>>  4 files changed, 27 insertions(+), 19 deletions(-)
>>
>> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
>> index 70565d81320b..07290943e91d 100644
>> --- a/fs/f2fs/f2fs.h
>> +++ b/fs/f2fs/f2fs.h
>> @@ -3327,7 +3327,8 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info 
>> *sbi);
>>  int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
>>  void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
>>  unsigned int start, unsigned int end);
>> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
>> +void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
>> +void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
>>  int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
>>  bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
>>  struct cp_control *cpc);
>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
>> index f196187159e9..67c65e40b22b 100644
>> --- a/fs/f2fs/file.c
>> +++ b/fs/f2fs/file.c
>> @@ -1659,7 +1659,7 @@ static int expand_inode_data(struct inode *inode, 
>> loff_t offset,
>>  map.m_seg_type = CURSEG_COLD_DATA_PINNED;
>>  
>>  f2fs_lock_op(sbi);
>> -f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
>> +f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
> 
> This should be CURSEG_COLD_DATA. Otherwise it causes the below kernel panic.
> I fixed this in the -dev, so let me know, if you have other concern.

It looks I made a mistake when spliting this cleanup patch from
"f2fs: introduce inmem curseg", thanks for fixing this.

Thanks,

> 
>   259 Unable to handle kernel NULL pointer dereference at virtual address 
> 0008
>   259 task: 82b4de99 task.stack: c6b39dbf
>   259 pc : f2fs_do_write_data_page+0x2b4/0x794
>   259 lr : f2fs_do_write_data_page+0x290/0x794
>   259 sp : ff800c83b5a0 pstate : 60c00145
>   259 Call trace:
>   259  f2fs_do_write_data_page+0x2b4/0x794
>   259  f2fs_write_single_data_page+0x4a4/0x764
>   259  f2fs_write_data_pages+0x4dc/0x968
>   259  do_writepages+0x60/0x124
>   259  __writeback_single_inode+0xd8/0x490
>   259  writeback_sb_inodes+0x3a8/0x6e4
>   259  __writeback_inodes_wb+0xa4/0x14c
>   259  wb_writeback+0x218/0x434
>   259  wb_workfn+0x2bc/0x57c
>   259  process_one_work+0x25c/0x440
>   259  worker_thread+0x24c/0x480
>   259  kthread+0x11c/0x12c
>   259  ret_from_fork+0x10/0x18
> 
>>  f2fs_unlock_op(sbi);
>>  
>>  err = f2fs_map_blocks(inode, , 1, F2FS_GET_BLOCK_PRE_DIO);
>> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
>> index ae5310f02e7f..af974ba273b3 100644
>> --- a/fs/f2fs/recovery.c
>> +++ b/fs/f2fs/recovery.c
>> @@ -742,7 +742,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct 
>> list_head *inode_list,
>>  f2fs_put_page(page, 1);
>>  }
>>  if (!err)
>> -f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
>> +f2fs_allocate_new_segments(sbi);
>>  return err;
>>  }
>>  
>> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
>> index 113114f98087..f15711e8ee5b 100644
>> --- a/fs/f2fs/segment.c
>> +++ b/fs/f2fs/segment.c
>> @@ -2707,28 +2707,35 @@ void f2fs_allocate_segment_for_resize(struct 
>> f2fs_sb_info *sbi, int type,
>>  up_read(_I(sbi)->curseg_lock);
>>  }
>>  
>> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
>> +void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
>>  {
>> -struct curseg_info *curseg;
>> +struct curseg_info *curseg = CURSEG_I(sbi, type);
>>  unsigned int old_segno;
>> -int i;
>>  
>> -down_write(_I(sbi)->sentry_lock);
>> +if (!curseg->next_blkoff &&
>> +!get_valid_blocks(sbi, curseg->segno, false) &&
>> +!get_ckpt_valid_blocks(sbi, curseg->segno))
>> +return;
>>  
>> -for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
>> -if (type != NO_CHECK_TYPE && i != type)
>> -continue;
>> +old_segno = curseg->segno;
>> +SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
>> +locate_dirty_segment(sbi, old_segno);
>> +}
>>  
>> -curseg = CURSEG_I(sbi, i);
>> -if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
>> -get_valid_blocks(sbi, curseg->segno, false) ||
>> -get_ckpt_valid_blocks(sbi, curseg->segno)) {
>> -old_segno = curseg->segno;
>> -

Re: [PATCH 1/2] f2fs: split f2fs_allocate_new_segments()

2020-06-29 Thread Jaegeuk Kim
On 06/22, Chao Yu wrote:
> to two independent functions:
> - f2fs_allocate_new_segment() for specified type segment allocation
> - f2fs_allocate_new_segments() for all data type segments allocation
> 
> Signed-off-by: Chao Yu 
> ---
>  fs/f2fs/f2fs.h |  3 ++-
>  fs/f2fs/file.c |  2 +-
>  fs/f2fs/recovery.c |  2 +-
>  fs/f2fs/segment.c  | 39 +++
>  4 files changed, 27 insertions(+), 19 deletions(-)
> 
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 70565d81320b..07290943e91d 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -3327,7 +3327,8 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info 
> *sbi);
>  int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
>  void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
>   unsigned int start, unsigned int end);
> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
> +void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
> +void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
>  int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
>  bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
>   struct cp_control *cpc);
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index f196187159e9..67c65e40b22b 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1659,7 +1659,7 @@ static int expand_inode_data(struct inode *inode, 
> loff_t offset,
>   map.m_seg_type = CURSEG_COLD_DATA_PINNED;
>  
>   f2fs_lock_op(sbi);
> - f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
> + f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);

This should be CURSEG_COLD_DATA. Otherwise it causes the below kernel panic.
I fixed this in the -dev, so let me know, if you have other concern.

  259 Unable to handle kernel NULL pointer dereference at virtual address 
0008
  259 task: 82b4de99 task.stack: c6b39dbf
  259 pc : f2fs_do_write_data_page+0x2b4/0x794
  259 lr : f2fs_do_write_data_page+0x290/0x794
  259 sp : ff800c83b5a0 pstate : 60c00145
  259 Call trace:
  259  f2fs_do_write_data_page+0x2b4/0x794
  259  f2fs_write_single_data_page+0x4a4/0x764
  259  f2fs_write_data_pages+0x4dc/0x968
  259  do_writepages+0x60/0x124
  259  __writeback_single_inode+0xd8/0x490
  259  writeback_sb_inodes+0x3a8/0x6e4
  259  __writeback_inodes_wb+0xa4/0x14c
  259  wb_writeback+0x218/0x434
  259  wb_workfn+0x2bc/0x57c
  259  process_one_work+0x25c/0x440
  259  worker_thread+0x24c/0x480
  259  kthread+0x11c/0x12c
  259  ret_from_fork+0x10/0x18

>   f2fs_unlock_op(sbi);
>  
>   err = f2fs_map_blocks(inode, , 1, F2FS_GET_BLOCK_PRE_DIO);
> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
> index ae5310f02e7f..af974ba273b3 100644
> --- a/fs/f2fs/recovery.c
> +++ b/fs/f2fs/recovery.c
> @@ -742,7 +742,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct 
> list_head *inode_list,
>   f2fs_put_page(page, 1);
>   }
>   if (!err)
> - f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
> + f2fs_allocate_new_segments(sbi);
>   return err;
>  }
>  
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 113114f98087..f15711e8ee5b 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -2707,28 +2707,35 @@ void f2fs_allocate_segment_for_resize(struct 
> f2fs_sb_info *sbi, int type,
>   up_read(_I(sbi)->curseg_lock);
>  }
>  
> -void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
> +void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
>  {
> - struct curseg_info *curseg;
> + struct curseg_info *curseg = CURSEG_I(sbi, type);
>   unsigned int old_segno;
> - int i;
>  
> - down_write(_I(sbi)->sentry_lock);
> + if (!curseg->next_blkoff &&
> + !get_valid_blocks(sbi, curseg->segno, false) &&
> + !get_ckpt_valid_blocks(sbi, curseg->segno))
> + return;
>  
> - for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
> - if (type != NO_CHECK_TYPE && i != type)
> - continue;
> + old_segno = curseg->segno;
> + SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
> + locate_dirty_segment(sbi, old_segno);
> +}
>  
> - curseg = CURSEG_I(sbi, i);
> - if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
> - get_valid_blocks(sbi, curseg->segno, false) ||
> - get_ckpt_valid_blocks(sbi, curseg->segno)) {
> - old_segno = curseg->segno;
> - SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true);
> - locate_dirty_segment(sbi, old_segno);
> - }
> - }
> +void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type)
> +{
> + down_write(_I(sbi)->sentry_lock);

[PATCH 1/2] f2fs: split f2fs_allocate_new_segments()

2020-06-22 Thread Chao Yu
to two independent functions:
- f2fs_allocate_new_segment() for specified type segment allocation
- f2fs_allocate_new_segments() for all data type segments allocation

Signed-off-by: Chao Yu 
---
 fs/f2fs/f2fs.h |  3 ++-
 fs/f2fs/file.c |  2 +-
 fs/f2fs/recovery.c |  2 +-
 fs/f2fs/segment.c  | 39 +++
 4 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 70565d81320b..07290943e91d 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3327,7 +3327,8 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
unsigned int start, unsigned int end);
-void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
+void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
+void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
struct cp_control *cpc);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index f196187159e9..67c65e40b22b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1659,7 +1659,7 @@ static int expand_inode_data(struct inode *inode, loff_t 
offset,
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
 
f2fs_lock_op(sbi);
-   f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+   f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
f2fs_unlock_op(sbi);
 
err = f2fs_map_blocks(inode, , 1, F2FS_GET_BLOCK_PRE_DIO);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index ae5310f02e7f..af974ba273b3 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -742,7 +742,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct 
list_head *inode_list,
f2fs_put_page(page, 1);
}
if (!err)
-   f2fs_allocate_new_segments(sbi, NO_CHECK_TYPE);
+   f2fs_allocate_new_segments(sbi);
return err;
 }
 
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 113114f98087..f15711e8ee5b 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2707,28 +2707,35 @@ void f2fs_allocate_segment_for_resize(struct 
f2fs_sb_info *sbi, int type,
up_read(_I(sbi)->curseg_lock);
 }
 
-void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type)
+void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
 {
-   struct curseg_info *curseg;
+   struct curseg_info *curseg = CURSEG_I(sbi, type);
unsigned int old_segno;
-   int i;
 
-   down_write(_I(sbi)->sentry_lock);
+   if (!curseg->next_blkoff &&
+   !get_valid_blocks(sbi, curseg->segno, false) &&
+   !get_ckpt_valid_blocks(sbi, curseg->segno))
+   return;
 
-   for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
-   if (type != NO_CHECK_TYPE && i != type)
-   continue;
+   old_segno = curseg->segno;
+   SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
+   locate_dirty_segment(sbi, old_segno);
+}
 
-   curseg = CURSEG_I(sbi, i);
-   if (type == NO_CHECK_TYPE || curseg->next_blkoff ||
-   get_valid_blocks(sbi, curseg->segno, false) ||
-   get_ckpt_valid_blocks(sbi, curseg->segno)) {
-   old_segno = curseg->segno;
-   SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true);
-   locate_dirty_segment(sbi, old_segno);
-   }
-   }
+void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type)
+{
+   down_write(_I(sbi)->sentry_lock);
+   __allocate_new_segment(sbi, type);
+   up_write(_I(sbi)->sentry_lock);
+}
 
+void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
+{
+   int i;
+
+   down_write(_I(sbi)->sentry_lock);
+   for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++)
+   __allocate_new_segment(sbi, i);
up_write(_I(sbi)->sentry_lock);
 }
 
-- 
2.26.2