set_tid_address.2: Use "thread" rather than "process" in DESCRIPTION

Reported-by: Rich Felker <dalias@libc.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

1 files changed, 10 insertions, 10 deletions

diff --git a/man2/set_tid_address.2 b/man2/set_tid_address.2
index 9bdbf1200..5cfa6faff 100644
--- a/man2/set_tid_address.2
+++ b/man2/set_tid_address.2
@@ -32,14 +32,14 @@ set_tid_address \- set pointer to thread ID
 .BI "long set_tid_address(int *" tidptr );
 .fi
 .SH DESCRIPTION
-For each process, the kernel maintains two attributes (addresses) called
+For each thread, the kernel maintains two attributes (addresses) called
 .I set_child_tid
 and
 .IR clear_child_tid .
 These two attributes contain the value NULL by default.
 .TP
 .I set_child_tid
-If a process is started using
+If a thread is started using
 .BR clone (2)
 with the
 .B CLONE_CHILD_SETTID
@@ -51,11 +51,11 @@ argument of that system call.
 .IP
 When
 .I set_child_tid
-is set, the very first thing the new process does
-is writing its PID at this address.
+is set, the very first thing the new thread does
+is to write its thread ID at this address.
 .TP
 .I clear_child_tid
-If a process is started using
+If a thread is started using
 .BR clone (2)
 with the
 .B CLONE_CHILD_CLEARTID
@@ -69,25 +69,25 @@ The system call
 .BR set_tid_address ()
 sets the
 .I clear_child_tid
-value for the calling process to
+value for the calling thread to
 .IR tidptr .
 .LP
-When a process whose
+When a thread whose
 .I clear_child_tid
 is not NULL terminates, then,
-if the process is sharing memory with other processes or threads,
+if the thread is sharing memory with other threads,
 then 0 is written at the address specified in
 .I clear_child_tid
 and the kernel performs the following operation:
 
     futex(clear_child_tid, FUTEX_WAKE, 1, NULL, NULL, 0);
 
-The effect of this operation is to wake a single process that
+The effect of this operation is to wake a single thread that
 is performing a futex wait on the memory location.
 Errors from the futex wake operation are ignored.
 .SH RETURN VALUE
 .BR set_tid_address ()
-always returns the PID of the calling process.
+always returns the caller's thread ID.
 .SH ERRORS
 .BR set_tid_address ()
 always succeeds.