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* [f2fs-dev] [PATCH v3] f2fs: zone: wait for inflight dio completion, excluding pinned files read using dio
@ 2025-07-22  6:02 ` yohan.joung
  0 siblings, 0 replies; 6+ messages in thread
From: yohan.joung @ 2025-07-22  6:02 UTC (permalink / raw)
  To: jaegeuk, chao; +Cc: pilhyun.kim, linux-kernel, linux-f2fs-devel

read for the pinfile using Direct I/O do not wait for dio write.

Signed-off-by: yohan.joung <yohan.joung@sk.com>
---
 fs/f2fs/file.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 4039ccb5022c..58a4d25eb08f 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4834,6 +4834,7 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	struct inode *inode = file_inode(iocb->ki_filp);
 	const loff_t pos = iocb->ki_pos;
 	ssize_t ret;
+	bool dio;
 
 	if (!f2fs_is_compress_backend_ready(inode))
 		return -EOPNOTSUPP;
@@ -4842,12 +4843,15 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		f2fs_trace_rw_file_path(iocb->ki_filp, iocb->ki_pos,
 					iov_iter_count(to), READ);
 
+	dio = f2fs_should_use_dio(inode, iocb, to);
+
 	/* In LFS mode, if there is inflight dio, wait for its completion */
 	if (f2fs_lfs_mode(F2FS_I_SB(inode)) &&
-	    get_pages(F2FS_I_SB(inode), F2FS_DIO_WRITE))
+	    get_pages(F2FS_I_SB(inode), F2FS_DIO_WRITE) &&
+		(!f2fs_is_pinned_file(inode) || !dio))
 		inode_dio_wait(inode);
 
-	if (f2fs_should_use_dio(inode, iocb, to)) {
+	if (dio) {
 		ret = f2fs_dio_read_iter(iocb, to);
 	} else {
 		ret = filemap_read(iocb, to, 0);
-- 
2.33.0



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^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2025-07-24 20:30 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-07-22  6:02 [f2fs-dev] [PATCH v3] f2fs: zone: wait for inflight dio completion, excluding pinned files read using dio yohan.joung
2025-07-22  6:02 ` yohan.joung
2025-07-22  6:04 ` [f2fs-dev] " Chao Yu via Linux-f2fs-devel
2025-07-22  6:04   ` Chao Yu
2025-07-24 20:30 ` [f2fs-dev] " patchwork-bot+f2fs--- via Linux-f2fs-devel
2025-07-24 20:30   ` patchwork-bot+f2fs

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