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proc.5: wfix 

In the section for /proc/[pid]/smaps, the description of field
ProtectionKey occurs twice: both before and after the description of
VmFlags.

Changes made by this patch:
1) Only the first occurrence is kept because its order matches the
output of /proc/[pid]/smaps.
2) The kernel version that CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS was
introduced is only mentioned in the second occurrence. Now it's moved
to the first one.

Signed-off-by: Jing Peng <pj.hades@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Jing Peng 2020-10-24 18:18:13 -04:00 committed by Michael Kerrisk
parent 8fe75257c6
commit 9ae9894c8e
1 changed files with 1 additions and 8 deletions
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@ -1987,7 +1987,7 @@ contains the memory protection key (see
associated with the virtual memory area.
This entry is present only if the kernel was built with the
.B CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
configuration option.
configuration option (since Linux 4.6).
.IP
The "VmFlags" line (available since Linux 3.8)
represents the kernel flags associated with the virtual memory area,
@ -2026,13 +2026,6 @@ encoded using the following two-letter codes:
um - userfaultfd missing pages tracking (since Linux 4.3)
uw - userfaultfd wprotect pages tracking (since Linux 4.3)
.IP
"ProtectionKey" field contains the memory protection key (see
.BR pkeys (7))
associated with the virtual memory area.
Present only if the kernel was built with the
.B CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
configuration option. (since Linux 4.6)
.IP
The
.IR /proc/[pid]/smaps
file is present only if the