Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- crypto: Fix crash when used with multiqueue devices
- linux-aio: add IO_CMD_FDSYNC command support
- copy-before-write: Avoid integer overflows for timeout > 4s
- Fix crash with QMP block_resize and iothreads
- qemu-io: add cvtnum() error handling for zone commands
- Code cleanup

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# gpg: Signature made Tue 11 Jun 2024 10:35:22 AM PDT
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
  crypto/block: drop qcrypto_block_open() n_threads argument
  block/crypto: create ciphers on demand
  linux-aio: add IO_CMD_FDSYNC command support
  block/copy-before-write: use uint64_t for timeout in nanoseconds
  qemu-io: add cvtnum() error handling for zone commands
  aio: warn about iohandler_ctx special casing
  Revert "monitor: use aio_co_reschedule_self()"
  block: drop force_dup parameter of raw_reconfigure_getfd()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

3 files changed, 7 insertions, 2 deletions

diff --git a/include/block/aio.h b/include/block/aio.h
index 8378553..4ee8193 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -629,6 +629,9 @@ void aio_co_schedule(AioContext *ctx, Coroutine *co);
  *
  * Move the currently running coroutine to new_ctx. If the coroutine is already
  * running in new_ctx, do nothing.
+ *
+ * Note that this function cannot reschedule from iohandler_ctx to
+ * qemu_aio_context.
  */
 void coroutine_fn aio_co_reschedule_self(AioContext *new_ctx);
 
@@ -661,6 +664,9 @@ void aio_co_enter(AioContext *ctx, Coroutine *co);
  * If called from an IOThread this will be the IOThread's AioContext.  If
  * called from the main thread or with the "big QEMU lock" taken it
  * will be the main loop AioContext.
+ *
+ * Note that the return value is never the main loop's iohandler_ctx and the
+ * return value is the main loop AioContext instead.
  */
 AioContext *qemu_get_current_aio_context(void);
 
diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h
index 20e000b..6267068 100644
--- a/include/block/raw-aio.h
+++ b/include/block/raw-aio.h
@@ -60,6 +60,7 @@ void laio_cleanup(LinuxAioState *s);
 int coroutine_fn laio_co_submit(int fd, uint64_t offset, QEMUIOVector *qiov,
                                 int type, uint64_t dev_max_batch);
 
+bool laio_has_fdsync(int);
 void laio_detach_aio_context(LinuxAioState *s, AioContext *old_context);
 void laio_attach_aio_context(LinuxAioState *s, AioContext *new_context);
 #endif
diff --git a/include/crypto/block.h b/include/crypto/block.h
index 92e823c..5b5d039 100644
--- a/include/crypto/block.h
+++ b/include/crypto/block.h
@@ -76,7 +76,6 @@ typedef enum {
  * @readfunc: callback for reading data from the volume
  * @opaque: data to pass to @readfunc
  * @flags: bitmask of QCryptoBlockOpenFlags values
- * @n_threads: allow concurrent I/O from up to @n_threads threads
  * @errp: pointer to a NULL-initialized error object
  *
  * Create a new block encryption object for an existing
@@ -113,7 +112,6 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options,
                                  QCryptoBlockReadFunc readfunc,
                                  void *opaque,
                                  unsigned int flags,
-                                 size_t n_threads,
                                  Error **errp);
 
 typedef enum {