| Message ID | 19cad183acc3a44b17b76c1719ad30c80aeff1ef.1660124059.git.asml.silence@gmail.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | improve io_uring's ubuf_info refcounting | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/subject_prefix | success | Link |
| netdev/cover_letter | success | Series has a cover letter |
| netdev/patch_count | success | Link |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 3 this patch: 3 |
| netdev/cc_maintainers | success | CCed 3 of 3 maintainers |
| netdev/build_clang | success | Errors and warnings before: 5 this patch: 5 |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/check_selftest | success | No net selftest shell script |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 3 this patch: 3 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 8 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
diff --git a/io_uring/notif.c b/io_uring/notif.c index 5661681b3b44..dd346ea67580 100644 --- a/io_uring/notif.c +++ b/io_uring/notif.c @@ -66,7 +66,7 @@ struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx, nd = io_notif_to_data(notif); nd->account_pages = 0; nd->uarg.skb_flags = SKBFL_ZEROCOPY_FRAG | SKBFL_DONT_ORPHAN; - nd->uarg.flags = 0; + nd->uarg.flags = UARGFL_CALLER_PINNED; nd->uarg.callback = io_uring_tx_zerocopy_callback; /* master ref owned by io_notif_slot, will be dropped on flush */ refcount_set(&nd->uarg.refcnt, 1);
We always keep references to active notifications and drop them only when we flush, so they're always pinned during sock_sendmsg() and we can add UARGFL_CALLER_PINNED. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- io_uring/notif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)