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fuse: Add fuse-io-uring handling into fuse_copy

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Add special fuse-io-uring into the fuse argument
copy handler.

Signed-off-by: Bernd Schubert <bschubert@ddn.com>
Reviewed-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Luis Henriques <luis@igalia.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Bernd Schubert 2025-01-20 02:29:01 +01:00 committed by Miklos Szeredi
parent d0f9c62aaf
commit f773a7c2c3
2 changed files with 15 additions and 1 deletions
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12
fs/fuse/dev.c
View File

@ -786,6 +786,9 @@ static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size)
*size -= ncpy;
cs->len -= ncpy;
cs->offset += ncpy;
if (cs->is_uring)
cs->ring.copied_sz += ncpy;
return ncpy;
}
@ -1922,7 +1925,14 @@ static struct fuse_req *request_find(struct fuse_pqueue *fpq, u64 unique)
int fuse_copy_out_args(struct fuse_copy_state *cs, struct fuse_args *args,
unsigned nbytes)
{
unsigned reqsize = sizeof(struct fuse_out_header);
unsigned int reqsize = 0;
/*
* Uring has all headers separated from args - args is payload only
*/
if (!cs->is_uring)
reqsize = sizeof(struct fuse_out_header);
reqsize += fuse_len_args(args->out_numargs, args->out_args);

4
fs/fuse/fuse_dev_i.h
View File

@ -27,6 +27,10 @@ struct fuse_copy_state {
unsigned int len;
unsigned int offset;
unsigned int move_pages:1;
unsigned int is_uring:1;
struct {
unsigned int copied_sz; /* copied size into the user buffer */
} ring;
};
static inline struct fuse_dev *fuse_get_dev(struct file *file)