From d52ae4f9d44d7e08375bfacac0bc7cc02ad1b54b Mon Sep 17 00:00:00 2001 From: Bernd Schubert Date: Wed, 28 May 2025 15:13:47 +0200 Subject: Allow applications to retrieve the req payload (io-uring only) With io-uring the req owns the payload buffer, the application can directly access it and copy data into it. fuse_buf_copy_one() already has a check for dstmem == srcmem and skips data copies. fuse_reply_data fuse_reply_data_uring fuse_buf_copy fuse_buf_copy_one Signed-off-by: Bernd Schubert --- lib/fuse_lowlevel.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib/fuse_lowlevel.c') diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c index 6afcecd..e4544df 100644 --- a/lib/fuse_lowlevel.c +++ b/lib/fuse_lowlevel.c @@ -3317,6 +3317,18 @@ bool fuse_req_is_uring(fuse_req_t req) return req->is_uring; } +#ifndef HAVE_URING +int fuse_req_get_payload(fuse_req_t req, char **payload, size_t *payload_sz, + void **mr) +{ + (void)req; + (void)payload; + (void)payload_sz; + (void)mr; + return -ENOTSUP; +} +#endif + static struct { void (*func)(fuse_req_t req, const fuse_ino_t node, const void *arg); const char *name; -- cgit v1.2.3