LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity
18,920 Commits 1 Branch 197 Tags 93 MiB
Commit Graph

18920 Commits

Author SHA1 Message Date
Michael Kerrisk 9d9f49e38a nologin.5: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:58:57 +01:00
Michael Kerrisk e810de90a6 motd.5: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:58:42 +01:00
Michael Kerrisk 6998e202c0 issue.5: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:58:25 +01:00
Michael Kerrisk 275723f9d9 group.5: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:58:04 +01:00
Michael Kerrisk f8327f606c vcs.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:57:38 +01:00
Michael Kerrisk 909133ff23 ttyS.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:57:18 +01:00
Michael Kerrisk a00435eaa4 tty.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:56:56 +01:00
Michael Kerrisk cee1a3fc28 st.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:56:40 +01:00
Michael Kerrisk 4120138875 sd.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:56:17 +01:00
Michael Kerrisk e15b73c03e rtc.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:55:22 +01:00
Michael Kerrisk 323e1feb04 random.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:54:02 +01:00
Michael Kerrisk 2fc0f4dfd5 ram.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:53:39 +01:00
Michael Kerrisk fc70ff300e lp.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:53:12 +01:00
Michael Kerrisk 991f74400d loop.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:52:57 +01:00
Michael Kerrisk e8d59c391c hd.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:52:15 +01:00
Michael Kerrisk 7f6eb1aacb full.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:52:00 +01:00
Michael Kerrisk dcaab7a318 fd.4: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:51:41 +01:00
Michael Kerrisk 0335565faa resolver.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:51:26 +01:00
Michael Kerrisk a2d427c1a6 initgroups.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:50:06 +01:00
Michael Kerrisk 7457600f6e getutent.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:49:28 +01:00
Michael Kerrisk d0b8a8d817 getmntent.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:48:20 +01:00
Michael Kerrisk 0578c69df2 fgetpwent.3: Add missing ATTRIBUTES preamble 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:46:28 +01:00
Michael Kerrisk 09bf2ec88c alloc_hugepages.2: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-06 22:44:34 +01:00
Michael Kerrisk 2468f14e4b cgroups.7: Relocate the 'Cgroups v2 "no internal processes" rule' subsection 
Logically, this section should follow the section that
describes cgroup.subtree_control.

No content changes in this patch.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk 4f017a682c cgroups.7: Elaborate on the "no internal processes" rule 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk c9b101d1a2 cgroups.7: Mention ENOENT error that can occur when writing to subtree_control file 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk 4242dfbe4f cgroups.7: Add subsection describing cgroups v2 subtree delegation 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk 0e124f35c5 copy_file_range.2: Add comment to code example explaining use of syscall(2) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk c799d40f9e copy_file_range.2: Library support was added in glibc 2.27 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Nikolay Borisov 1b7adc7c97 bpf.2: Sync list of supported map types with 4.14 kernel 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:22:00 +01:00
Michael Kerrisk ccb1a2621b cgroups.7: Minor rewording 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 14:09:00 +01:00
Michael Kerrisk 8d5f42dc46 cgroups.7: Rewrite the description of cgroup v2 subtree control 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 13:41:39 +01:00
Michael Kerrisk 57cbb0dbb0 cgroups.7: One may need to unmount v1 controllers before they can be used in v2 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 10:58:08 +01:00
Michael Kerrisk 75a12bb537 cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 10:39:36 +01:00
Michael Kerrisk 7409b54bdd cgroups.7: Add a section on unmounting cgroup v1 filesystems 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 10:27:11 +01:00
Michael Kerrisk 783a40b677 cgroups.7: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 09:34:14 +01:00
Michael Kerrisk 03bb1264cd cgroups.7: Note that systemd(1) nowadays automatically mount the cgroup2 filesystem 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 09:29:45 +01:00
Michael Kerrisk 2e33b59ee3 cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 09:09:41 +01:00
Michael Kerrisk 4769a77817 cgroups.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 09:09:26 +01:00
Michael Kerrisk 44c429ed45 cgroups.7: Add list of currently available version 2 controllers 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 09:07:00 +01:00
Michael Kerrisk d2cd45885b errno.3: 'errno -s' can be used to search for errors by string in description 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 08:43:20 +01:00
Michael Kerrisk 4b204edb3b memfd_create.2: memfd_create() now has a glibc wrapper; remove mention of syscall(2) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:52:22 +01:00
Michael Kerrisk 3e6695e03a pkey_alloc.2: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:43:09 +01:00
Michael Kerrisk 8859798438 pkey_alloc.2: Clarify description of pkey_alloc() 'flags' argument 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:39:15 +01:00
Michael Kerrisk 251c33e360 mlock.2: Make details for MLOCK_ONFAULT a little more explicit 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:34:31 +01:00
Michael Kerrisk 90f81837e7 mlock.2: mlock2() now has library support, so remove mention of syscall(2) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:32:10 +01:00
Michael Kerrisk fe110bff32 mprotect.2, pkey_alloc.2: Glibc support for memory protection keys was added in version 2.27 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-21 12:28:03 +01:00
Michael Kerrisk f54c67bf71 mount.2: Clarify term "unprivileged mount namespace" in Keno's patch 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-19 14:58:42 +01:00
Michael Kerrisk 3484e69fca mount.2: Minor fixes 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-19 14:58:42 +01:00
Keno Fischer 360d745544 mount.2: Add EINVAL error condition when MS_BINDing MNT_LOCKED submounts 
When the user creates an unprivileged mount namespace, the Linux
kernel sets the MNT_LOCKED flag [1] on any submounts to prevent
such mounts from being unmounted inside the mount namespace. Such
an unmount would reveal the filesystem tree behind the mount,
which is not otherwise possible from an unprivileged vantage
point.

Attempting to unmount such a mount will fail with EINVAL. However,
less obvious implication is that attempting a bind mount without
MS_REC, where the tree being bound contains locked sub-mounts,
will also fail with EINVAL, because, without MS_REC, such
submounts are effectively being unmounted.

Cursory googling shows several instances of people running into
this problem, so I felt it advantageous to have it documented in
the man page.

[1] 4fbd8d194f/fs/namespace.c (L1110-L1113)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-19 14:54:22 +01:00