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io_uring_prep_link(3) — Linux manual page

io_uring_prep_linkat(3)      liburing Manualio_uring_prep_linkat(3)

NAME        top

       io_uring_prep_linkat - prepare a linkat request

SYNOPSIS        top

#include <fcntl.h>#include <unistd.h>#include <liburing.h>void io_uring_prep_linkat(struct io_uring_sqe *sqe,intolddirfd,const char *oldpath,intnewdirfd,const char *newpath,intflags);void io_uring_prep_link(struct io_uring_sqe *sqe,const char *oldpath,const char *newpath,intflags);

DESCRIPTION        top

       Theio_uring_prep_linkat(3) function prepares a linkat request.       The submission queue entrysqe is setup to use the old directory       file descriptor pointed to byolddirfd and old path pointed to byoldpath with the new directory file descriptor pointed to bynewdirfd and the new path pointed to bynewpath and using the       specified flags inflags.       Theio_uring_prep_link(3) function prepares a link request. The       submission queue entrysqe is setup to use the old path pointed to       byoldpath and the new path pointed to bynewpath, both relative       to the current working directory and using the specified flags inflags.       These functions prepare an asynclinkat(2) orlink(2) request. See       those man pages for details.

RETURN VALUE        top

       None

ERRORS        top

       The CQEres field will contain the result of the operation. See       the related man page for details on possible values. Note that       where synchronous system calls will return-1on failure and seterrno to the actual error value, io_uring never useserrno.       Instead it returns the negatederrno directly in the CQEres       field.

NOTES        top

       As with any request that passes in data in a struct, that data       must remain valid until the request has been successfully       submitted. It need not remain valid until completion. Once a       request has been submitted, the in-kernel state is stable. Very       early kernels (5.4 and earlier) required state to be stable until       the completion occurred. Applications can test for this behavior       by inspecting theIORING_FEAT_SUBMIT_STABLEflag passed back fromio_uring_queue_init_params(3).

SEE ALSO        top

io_uring_get_sqe(3),io_uring_submit(3),linkat(2),link(2)

COLOPHON        top

       This page is part of theliburing (A library for io_uring)       project.  Information about the project can be found at        ⟨https://github.com/axboe/liburing⟩.  If you have a bug report for       this manual page, send it to io-uring@vger.kernel.org.  This page       was obtained from the project's upstream Git repository       ⟨https://github.com/axboe/liburing⟩ on 2025-08-11.  (At that time,       the date of the most recent commit that was found in the       repository was 2025-08-02.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgliburing-2.2                  March 13, 2022io_uring_prep_linkat(3)

Pages that refer to this page:io_uring_prep_link(3), io_uring_prep_linkat(3)

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