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[PATCH 1/3] man/man5/proc_pid_smaps{,_rollup}.5: Add proc_pid_smaps_rollup(5)

From: Max Chernoff <hidden>
Date: 2026-09-12 11:33:15
Subsystem: the rest · Maintainer: Linus Torvalds

Document /proc/pid/smaps_rollup, which is similar to /proc/pid/smaps,
except it merges all mappings are merged into a single synthetic
entry [1].

Also, add a better description to the NAME, following the discussion
in [2].

Link [1]: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=493b0e9d945fa9dfe96be93ae41b4ca4b6fdb317>
Link [2]: <https://lore.kernel.org/lkml/3f250c7105010613115554b9d9@mail.gmail.com (local)>
Signed-off-by: Max Chernoff <redacted>
---
 man/man5/proc_pid_smaps.5        | 7 ++++++-
 man/man5/proc_pid_smaps_rollup.5 | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 man/man5/proc_pid_smaps_rollup.5
diff --git a/man/man5/proc_pid_smaps.5 b/man/man5/proc_pid_smaps.5
index 9c433dbc1e60..51440cc13bf6 100644
--- a/man/man5/proc_pid_smaps.5
+++ b/man/man5/proc_pid_smaps.5
@@ -7,7 +7,7 @@
 .\"
 .TH proc_pid_smaps 5 (date) "Linux man-pages (unreleased)"
 .SH NAME
-/proc/pid/smaps \- XXX: What does 's' in "smaps" stand for?
+/proc/pid/smaps, /proc/pid/smaps_rollup \- size of mapped memory regions
 .SH DESCRIPTION
 .TP
 .IR /proc/ pid /smaps " (since Linux 2.6.14)"
@@ -125,5 +125,10 @@
 file is present only if the
 .B CONFIG_PROC_PAGE_MONITOR
 kernel configuration option is enabled.
+.TP
+.IR /proc/ pid /smaps_rollup " (since Linux 4.14)"
+This file is similar to
+.IR /proc/ pid /smaps ,
+except all mappings are merged into a single synthetic entry.
 .SH SEE ALSO
 .BR proc (5)
diff --git a/man/man5/proc_pid_smaps_rollup.5 b/man/man5/proc_pid_smaps_rollup.5
new file mode 100644
index 000000000000..4b5f9eba0484
--- /dev/null
+++ b/man/man5/proc_pid_smaps_rollup.5
@@ -0,0 +1 @@
+.so man5/proc_pid_smaps.5
base-commit: 59ba1c34fb6538206e96597739f053183d1e6428
-- 
2.55.0
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