[PATCH io_uring-7.2 2/3] io_uring/zcrx: rename ZCRX_NOTIF_NO_BUFFERS
From: Pavel Begunkov <asml.silence@gmail.com>
Date: 2026-07-22 13:42:36
Also in:
io-uring
Subsystem:
io_uring, io_uring zcrx, the rest · Maintainers:
Jens Axboe, Pavel Begunkov, Linus Torvalds
ZCRX_NOTIF_NO_BUFFERS tells when page pool fails to allocate memory from zcrx. "No buffers" could be more confusing, rename it to ZCRX_NOTIF_ALLOC_FAIL. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- include/uapi/linux/io_uring/zcrx.h | 2 +- io_uring/zcrx.c | 2 +- io_uring/zcrx.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/uapi/linux/io_uring/zcrx.h b/include/uapi/linux/io_uring/zcrx.h
index 99e56ec26ead..abb898d59a4b 100644
--- a/include/uapi/linux/io_uring/zcrx.h
+++ b/include/uapi/linux/io_uring/zcrx.h@@ -69,7 +69,7 @@ enum zcrx_features { }; enum zcrx_notification_type { - ZCRX_NOTIF_NO_BUFFERS, + ZCRX_NOTIF_ALLOC_FAIL, ZCRX_NOTIF_COPY, __ZCRX_NOTIF_TYPE_LAST,
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index 53dcb5110719..872d5794d3de 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c@@ -1244,7 +1244,7 @@ static netmem_ref io_pp_zc_alloc_netmems(struct page_pool *pp, gfp_t gfp) allocated = io_zcrx_refill_slow(pp, ifq, netmems, to_alloc); if (!allocated) { - zcrx_send_notif(ifq, ZCRX_NOTIF_NO_BUFFERS); + zcrx_send_notif(ifq, ZCRX_NOTIF_ALLOC_FAIL); return 0; } out_return:
diff --git a/io_uring/zcrx.h b/io_uring/zcrx.h
index a8d301b6191f..d16206eb9e30 100644
--- a/io_uring/zcrx.h
+++ b/io_uring/zcrx.h@@ -11,7 +11,7 @@ #define ZCRX_SUPPORTED_REG_FLAGS (ZCRX_REG_IMPORT | ZCRX_REG_NODEV) #define ZCRX_FEATURES (ZCRX_FEATURE_RX_PAGE_SIZE |\ ZCRX_FEATURE_NOTIFICATION) -#define ZCRX_NOTIF_TYPE_MASK ((1U << ZCRX_NOTIF_NO_BUFFERS) | (1U << ZCRX_NOTIF_COPY)) +#define ZCRX_NOTIF_TYPE_MASK ((1U << ZCRX_NOTIF_ALLOC_FAIL) | (1U << ZCRX_NOTIF_COPY)) struct io_zcrx_mem { unsigned long size;
--
2.54.0