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Jens Axboe authored
Allows the application to remove/replace/add files to/from a file set. Passes in a struct: struct io_uring_files_update { __u32 offset; __s32 *fds; }; that holds an array of fds, size of array passed in through the usual nr_args part of the io_uring_register() system call. The logic is as follows: 1) If ->fds[i] is -1, the existing file at i + ->offset is removed from the set. 2) If ->fds[i] is a valid fd, the existing file at i + ->offset is replaced with ->fds[i]. For case #2, is the existing file is currently empty (fd == -1), the new fd is simply added to the array. Reviewed-by:
Jeff Moyer <jmoyer@redhat.com> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
c3a31e60