Recent changes (master)

[Jens Axboe <axboe@kernel.dk>]

The following changes since commit 86196b9b9104b87a81ca5e54c87b8acf471d8cad:

  Merge branch 'http-slist-leak' of https://github.com/niharika-khare/fio (2026-09-29 13:27:05 -0400)

are available in the Git repository at:

  git://git.kernel.dk/fio.git master

for you to fetch changes up to e27aa8b47c371491044ce9d7b3ee2f8488ba91b4:

  Merge branch 'fix/no-rdwr-when-job-never-writes' of https://github.com/hmi-jeon/fio (2026-09-30 13:24:00 -0400)

----------------------------------------------------------------
Minsik Jeon (1):
      filesetup: don't open files O_RDWR for 100% read jobs

Vincent Fu (1):
      Merge branch 'fix/no-rdwr-when-job-never-writes' of https://github.com/hmi-jeon/fio

 filesetup.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

---

Diff of recent changes:

diff --git a/filesetup.c b/filesetup.c
index 740a2f47..72be2591 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -747,7 +747,11 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
 
 open_again:
 	if (td_write(td)) {
-		if (!read_only)
+		/*
+		 * For rw jobs, use O_RDWR only if the job has a non-zero
+		 * write percentage.
+		 */
+		if (!read_only && !(td_rw(td) && td->o.rwmix[DDIR_READ] == 100))
 			flags |= O_RDWR;
 
 		if (td->o.verify_only) {