New upstream version 3.27

Resolves: rhbz#1965485

0001-fio-fix-dlopen-refcounting-of-dynamic-engines.patch

@@ -1,84 +0,0 @@
-From 48ff7df9daea86c82a572b0a840bb8371b6b1a29 Mon Sep 17 00:00:00 2001
-From: Eric Sandeen <sandeen@redhat.com>
-Date: Mon, 25 Jan 2021 13:23:48 -0600
-Subject: [PATCH] fio: fix dlopen refcounting of dynamic engines
-
-ioengine_load() will dlclose the dynamic library if it matches one
-that we've already got open, but this defeats the built-in refcounting
-done by dlopen/dlclose.  As each thread exits, it calls free_ioengine(),
-and this may do a final dlclose on a dynamic ioengine that is still
-in use if we don't have the proper reference count.
-
-Fix this by dropping the explicit dlclose of a "matching" dlopened
-dynamic engine library, and let each dlclose decrement the refcount
-on the engine library as is normal.
-
-This also adds/modifies a couple of debug messages to help track this.
-
-Signed-off-by: Eric Sandeen <sandeen@redhat.com>
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
----
- init.c      | 5 +----
- ioengines.c | 8 ++++++--
- 2 files changed, 7 insertions(+), 6 deletions(-)
-
-diff --git a/init.c b/init.c
-index ab38b334..d6dbaf7c 100644
---- a/init.c
-+++ b/init.c
-@@ -1109,11 +1109,8 @@ int ioengine_load(struct thread_data *td)
- 		if (!ops)
- 			goto fail;
- 
--		if (ops == td->io_ops && dlhandle == td->io_ops->dlhandle) {
--			if (dlhandle)
--				dlclose(dlhandle);
-+		if (ops == td->io_ops && dlhandle == td->io_ops->dlhandle)
- 			return 0;
--		}
- 
- 		if (dlhandle && dlhandle != td->io_ops->dlhandle)
- 			dlclose(dlhandle);
-diff --git a/ioengines.c b/ioengines.c
-index dcc9496d..f88b0537 100644
---- a/ioengines.c
-+++ b/ioengines.c
-@@ -95,6 +95,7 @@ static void *dlopen_external(struct thread_data *td, const char *engine)
- 
- 	sprintf(engine_path, "%s/fio-%s.so", FIO_EXT_ENG_DIR, engine);
- 
-+	dprint(FD_IO, "dlopen external %s\n", engine_path);
- 	dlhandle = dlopen(engine_path, RTLD_LAZY);
- 	if (!dlhandle)
- 		log_info("Engine %s not found; Either name is invalid, was not built, or fio-engine-%s package is missing.\n",
-@@ -116,7 +117,7 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
- 	    !strncmp(engine_lib, "aio", 3))
- 		engine_lib = "libaio";
- 
--	dprint(FD_IO, "dload engine %s\n", engine_lib);
-+	dprint(FD_IO, "dlopen engine %s\n", engine_lib);
- 
- 	dlerror();
- 	dlhandle = dlopen(engine_lib, RTLD_LAZY);
-@@ -194,7 +195,9 @@ struct ioengine_ops *load_ioengine(struct thread_data *td)
- 	 * so as not to break job files not using the prefix.
- 	 */
- 	ops = __load_ioengine(td->o.ioengine);
--	if (!ops)
-+
-+	/* We do re-dlopen existing handles, for reference counting */
-+	if (!ops || ops->dlhandle)
- 		ops = dlopen_ioengine(td, name);
- 
- 	/*
-@@ -229,6 +232,7 @@ void free_ioengine(struct thread_data *td)
- 	}
- 
- 	if (td->io_ops->dlhandle) {
-+		dprint(FD_IO, "dlclose ioengine %s\n", td->io_ops->name);
- 		dlclose(td->io_ops->dlhandle);
- 		td->io_ops->dlhandle = NULL;
- 	}
--- 
-2.26.2
-

0001-fio-move-dynamic-library-handle-to-io_ops-structure.patch

@@ -1,110 +0,0 @@
-From f6931a1dd35896433c8cc2e10de51372a2c496c4 Mon Sep 17 00:00:00 2001
-From: Eric Sandeen <sandeen@redhat.com>
-Date: Mon, 25 Jan 2021 13:18:31 -0600
-Subject: [PATCH] fio: move dynamic library handle to io_ops structure
-
-Keeping a dynamic engine's dlopen'd dlhandle on a thread structure doesn't
-make sense; that thread may exit while others are still using the engine.
-
-Move the dlhandle onto the ops structure itself.
-
-We still only call dlopen for the first thead, which leaves a refcounting
-issue which will be fixed in the next patch.
-
-Signed-off-by: Eric Sandeen <sandeen@redhat.com>
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
----
- fio.h       | 1 -
- init.c      | 6 +++---
- ioengines.c | 8 ++++----
- ioengines.h | 3 ++-
- 4 files changed, 9 insertions(+), 9 deletions(-)
-
-diff --git a/fio.h b/fio.h
-index ee582a72..062abfa7 100644
---- a/fio.h
-+++ b/fio.h
-@@ -281,7 +281,6 @@ struct thread_data {
- 	 * IO engine private data and dlhandle.
- 	 */
- 	void *io_ops_data;
--	void *io_ops_dlhandle;
- 
- 	/*
- 	 * Queue depth of io_u's that fio MIGHT do
-diff --git a/init.c b/init.c
-index 1d14df16..ab38b334 100644
---- a/init.c
-+++ b/init.c
-@@ -1104,18 +1104,18 @@ int ioengine_load(struct thread_data *td)
- 		 * for this name and see if they match. If they do, then
- 		 * the engine is unchanged.
- 		 */
--		dlhandle = td->io_ops_dlhandle;
-+		dlhandle = td->io_ops->dlhandle;
- 		ops = load_ioengine(td);
- 		if (!ops)
- 			goto fail;
- 
--		if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
-+		if (ops == td->io_ops && dlhandle == td->io_ops->dlhandle) {
- 			if (dlhandle)
- 				dlclose(dlhandle);
- 			return 0;
- 		}
- 
--		if (dlhandle && dlhandle != td->io_ops_dlhandle)
-+		if (dlhandle && dlhandle != td->io_ops->dlhandle)
- 			dlclose(dlhandle);
- 
- 		/* Unload the old engine. */
-diff --git a/ioengines.c b/ioengines.c
-index 5ac512ae..dcc9496d 100644
---- a/ioengines.c
-+++ b/ioengines.c
-@@ -155,7 +155,7 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
- 		return NULL;
- 	}
- 
--	td->io_ops_dlhandle = dlhandle;
-+	ops->dlhandle = dlhandle;
- 	return ops;
- }
- 
-@@ -228,9 +228,9 @@ void free_ioengine(struct thread_data *td)
- 		td->eo = NULL;
- 	}
- 
--	if (td->io_ops_dlhandle) {
--		dlclose(td->io_ops_dlhandle);
--		td->io_ops_dlhandle = NULL;
-+	if (td->io_ops->dlhandle) {
-+		dlclose(td->io_ops->dlhandle);
-+		td->io_ops->dlhandle = NULL;
- 	}
- 
- 	td->io_ops = NULL;
-diff --git a/ioengines.h b/ioengines.h
-index a928b211..839b318d 100644
---- a/ioengines.h
-+++ b/ioengines.h
-@@ -8,7 +8,7 @@
- #include "io_u.h"
- #include "zbd_types.h"
- 
--#define FIO_IOOPS_VERSION	27
-+#define FIO_IOOPS_VERSION	28
- 
- #ifndef CONFIG_DYNAMIC_ENGINES
- #define FIO_STATIC	static
-@@ -30,6 +30,7 @@ struct ioengine_ops {
- 	const char *name;
- 	int version;
- 	int flags;
-+	void *dlhandle;
- 	int (*setup)(struct thread_data *);
- 	int (*init)(struct thread_data *);
- 	int (*post_init)(struct thread_data *);
--- 
-2.26.2
-