diff options
Diffstat (limited to 'man2/shmctl.2')
| -rw-r--r-- | man2/shmctl.2 | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/man2/shmctl.2 b/man2/shmctl.2 index a108e14c8..0e8d27153 100644 --- a/man2/shmctl.2 +++ b/man2/shmctl.2 @@ -43,7 +43,7 @@ .\" 2005-08-02, mtk: Added IPC_INFO, SHM_INFO, SHM_STAT descriptions. .\" 2018-03-20, dbueso: Added SHM_STAT_ANY description. .\" -.TH SHMCTL 2 2020-04-11 "Linux" "Linux Programmer's Manual" +.TH SHMCTL 2 2020-12-21 "Linux" "Linux Programmer's Manual" .SH NAME shmctl \- System V shared memory control .SH SYNOPSIS @@ -96,19 +96,6 @@ on the shared memory segment. .I shm_segsz Size in bytes of the shared memory segment. .TP -.I shm_cpid -ID of the process that created the shared memory segment. -.TP -.I shm_lpid -ID of the last process that executed a -.BR shmat (2) -or -.BR shmdt (2) -system call on this segment. -.TP -.I shm_nattch -Number of processes that have this segment attached. -.TP .I shm_atime Time of the last .BR shmat (2) @@ -124,6 +111,19 @@ Time of creation of segment or time of the last .BR shmctl () .BR IPC_SET operation. +.TP +.I shm_cpid +ID of the process that created the shared memory segment. +.TP +.I shm_lpid +ID of the last process that executed a +.BR shmat (2) +or +.BR shmdt (2) +system call on this segment. +.TP +.I shm_nattch +Number of processes that have this segment attached. .PP The .I ipc_perm @@ -192,9 +192,11 @@ to the kernel data structure associated with this shared memory segment, updating also its .I shm_ctime member. -The following fields can be changed: +.IP +The following fields are updated: \fIshm_perm.uid\fP, \fIshm_perm.gid\fP, and (the least significant 9 bits of) \fIshm_perm.mode\fP. +.IP The effective UID of the calling process must match the owner .RI ( shm_perm.uid ) or creator @@ -478,7 +480,7 @@ to include these header files. .PP The .BR IPC_INFO , -.B SHM_STAT +.BR SHM_STAT , and .B SHM_INFO operations are used by the @@ -516,7 +518,7 @@ flag in .BR capabilities (7), .BR sysvipc (7) .SH COLOPHON -This page is part of release 5.09 of the Linux +This page is part of release 5.10 of the Linux .I man-pages project. A description of the project, |