In get_more_blocks(), we may override @create as below code:
create = dio->op == REQ_OP_WRITE;
if (dio->flags & DIO_SKIP_HOLES) {
if (fs_startblk <= ((i_size_read(dio->inode) - 1) >>
i_blkbits))
Previously, when f2fs finds which temp bio cache owns the target page,
it will flush all the three temp bio caches, but we only need to flush
one single bio cache indeed, which can help to keep bio merged.
Signed-off-by: Yunlong Song
---
fs/f2fs/data.c | 37 ++---
On 2018/11/13 8:34, Jaegeuk Kim wrote:
> On 11/12, Chao Yu wrote:
>> On 2018-11-12 20:01, Sheng Yong wrote:
>>> The following race could lead to inconsistent SIT bitmap:
>>>
>>> Task A Task B
>>> == ==
>>> f2fs_write_checkpoint
>>>
Jaegeuk,
On 2018/9/18 21:21, Chao Yu wrote:
> On 2018/9/18 20:39, Yunlong Song wrote:
>> The encrypted file may be corrupted by GC in following case:
>>
>> Time 1: | segment 1 blkaddr = A | GC -> | segment 2 blkaddr = B |
>> Encrypted block 1 is moved from blkaddr A of segment 1 to blkaddr B of
On 11/12, Chao Yu wrote:
> On 2018-11-12 20:01, Sheng Yong wrote:
> > The following race could lead to inconsistent SIT bitmap:
> >
> > Task A Task B
> > == ==
> > f2fs_write_checkpoint
> > block_operations
> > f2fs_lock_all
> >
On 10/24, Yunlong Song wrote:
> Previously, when f2fs finds which temp bio cache owns the target page,
> it will flush all the three temp bio caches, but we only need to flush
> one single bio cache indeed, which can help to keep bio merged.
>
> Signed-off-by: Yunlong Song
> ---
>
On 2018-11-12 20:01, Sheng Yong wrote:
> The following race could lead to inconsistent SIT bitmap:
>
> Task A Task B
> == ==
> f2fs_write_checkpoint
> block_operations
> f2fs_lock_all
> down_write(node_change)
>
From: Chao Yu
This patch adds missing in-flight discard/preflush/dio command count
check in is_idle().
Signed-off-by: Chao Yu
---
v3:
- add in-flight r/w dio count check as well.
fs/f2fs/f2fs.h | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/f2fs.h
From: Chao Yu
This patch adds f2fs_dio_submit_bio() to hook submit_io/end_io functions
in direct IO path, in order to account DIO.
Later, we will add this count into is_idle() to let background GC/Discard
thread be aware of DIO.
Signed-off-by: Chao Yu
---
v2:
- access bio->bi_status instead
The following race could lead to inconsistent SIT bitmap:
Task A Task B
== ==
f2fs_write_checkpoint
block_operations
f2fs_lock_all
down_write(node_change)
down_write(node_write)
... sync ...
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