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ioctl_fs(2) — Linux manual page

ioctl_fs(2)                System Calls Manualioctl_fs(2)

NAME        top

       ioctl_fs - filesystem operations

LIBRARY        top

       Standard C library (libc,-lc)

SYNOPSIS        top

#include <linux/fs.h>/* Definition of op constants */#include <sys/ioctl.h>int ioctl(intfd, unsigned longop, ...);

DESCRIPTION        top

       The followingop values are available.Share some of the data of one file with another fileFICLONE(2const)FICLONERANGE(2const)FIDEDUPERANGE(2const)Operations for inode flagsFS_IOC_GETFLAGS(2const)FS_IOC_SETFLAGS(2const)Get or set a filesystem labelFS_IOC_GETFSLABEL(2const)FS_IOC_SETFSLABEL(2const)Get and/or clear page flagsPAGEMAP_SCAN(2const)

RETURN VALUE        top

       On success, a nonnegative value is returned.  On error, -1 is       returned, anderrno is set to indicate the error.

STANDARDS        top

       Linux.

SEE ALSO        top

ioctl(2)

COLOPHON        top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  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.orgLinux man-pages 6.15            2025-05-17ioctl_fs(2)

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