This adds the async buffered write support to f2fs,
the following is the relevant test data.
iodepth | 1 | 2 | 4 | 8 | 16 |
before(M/s) | 1012 | 1133 | 894 | 981 | 866 |
after(M/s) | 1488 | 1896 | 2081 | 2188 | 2207 |
The following is the fio configuration:
[global]
ioengine=io_uring
sqthread_poll=1
threads=1
iodepth=32
hipri=0
direct=0
fixedbufs=0
uncached=0
nowait=0
force_async=0
randrepeat=0
time_based=0
size=256M
filename=/data/test/local/io_uring_test
group_reporting
[read256B-rand]
bs=4096
rw=randwrite
numjobs=1
Signed-off-by: Lu Hongfei <luhong...@vivo.com>
Signed-off-by: Yangtao Li <frank...@vivo.com>
---
fs/f2fs/file.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 4dd4e2bd000a..74ecc9e20619 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -554,7 +554,7 @@ static int f2fs_file_open(struct inode *inode, struct file
*filp)
if (err)
return err;
- filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC | FMODE_BUF_WASYNC;
return dquot_file_open(inode, filp);
}
@@ -4523,9 +4523,6 @@ static ssize_t f2fs_buffered_write_iter(struct kiocb
*iocb,
struct inode *inode = file_inode(file);
ssize_t ret;
- if (iocb->ki_flags & IOCB_NOWAIT)
- return -EOPNOTSUPP;
-
current->backing_dev_info = inode_to_bdi(inode);
ret = generic_perform_write(iocb, from);
current->backing_dev_info = NULL;
--
2.39.0
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