svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
lookup_dcookie(2)
LOOKUP_DCOOKIE(2) Linux Programmer's Manual LOOKUP_DCOOKIE(2)
NAME
lookup_dcookie - return a directory entry's path
SYNOPSIS
int lookup_dcookie(u64 cookie, char *buffer, size_t len);
DESCRIPTION
Look up the full path of the directory entry specified by the value
cookie. The cookie is an opaque identifier uniquely identifying a par‐
ticular directory entry. The buffer given is filled in with the full
path of the directory entry.
For lookup_dcookie() to return successfully, the kernel must still hold
a cookie reference to the directory entry.
RETURN VALUE
On success, lookup_dcookie() returns the length of the path string
copied into the buffer. On error, -1 is returned, and errno is set ap‐
propriately.
ERRORS
EFAULT The buffer was not valid.
EINVAL The kernel has no registered cookie/directory entry mappings at
the time of lookup, or the cookie does not refer to a valid di‐
rectory entry.
ENAMETOOLONG
The name could not fit in the buffer.
ENOMEM The kernel could not allocate memory for the temporary buffer
holding the path.
EPERM The process does not have the capability CAP_SYS_ADMIN required
to look up cookie values.
ERANGE The buffer was not large enough to hold the path of the direc‐
tory entry.
VERSIONS
Available since Linux 2.5.43. The ENAMETOOLONG error return was added
in 2.5.70.
CONFORMING TO
lookup_dcookie() is Linux-specific.
NOTES
lookup_dcookie() is a special-purpose system call, currently used only
by the oprofile(1) profiler. It relies on a kernel driver to register
cookies for directory entries.
The path returned may be suffixed by the string " (deleted)" if the di‐
rectory entry has been removed.
SEE ALSO
oprofile(1)
COLOPHON
This page is part of release 5.02 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 LOOKUP_DCOOKIE(2)