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unlink.2: Glibc falls back to unlink() or rmdir() on kernels that lack unlinkat() 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2014-05-16 11:27:36 +02:00
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@ -278,6 +278,22 @@ SVr4, 4.3BSD, POSIX.1-2001, POSIX.1-2008.
.BR unlinkat ():
POSIX.1-2008.
.SH NOTES
.SS Glibc notes
On older kernels where
.BR unlinkat ()
is unavailable, the glibc wrapper function falls back to the use of
.BR unlink (2)
or
.BR rmdir (2).
When
.I pathname
is a relative pathname,
glibc constructs a pathname based on the symbolic link in
.IR /proc/self/fd
that corresponds to the
.IR dirfd
argument.
.SH BUGS
Infelicities in the protocol underlying NFS can cause the unexpected
disappearance of files which are still being used.