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| author | Štěpán Němec <stepnem@smrk.net> | 2025-07-29 21:40:36 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2025-08-11 20:10:57 +0300 |
| commit | 7069b5296e968d0e7d5fd6b825f221f0d766f3ea (patch) | |
| tree | 0b42759d7b3815b84d4a5ab51ea7edbae4327839 | |
| parent | 4fff5db420fef91d439f87f6c0d439ef291b3dd2 (diff) | |
| download | linux-7069b5296e968d0e7d5fd6b825f221f0d766f3ea.tar.xz | |
docs: admin-guide: update to current minimum pipe size default
The pipe size limit used when the fs.pipe-user-pages-soft sysctl value
is reached was increased from one to two pages in commit 46c4c9d1beb7;
update the documentation to match the new reality.
Fixes: 46c4c9d1beb7 ("pipe: increase minimum default pipe size to 2 pages")
Signed-off-by: Štěpán Němec <stepnem@smrk.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250729-pipedoc-v2-1-18b8e735a9c6@smrk.net
| -rw-r--r-- | Documentation/admin-guide/sysctl/fs.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/admin-guide/sysctl/fs.rst b/Documentation/admin-guide/sysctl/fs.rst index 6c54718c9d04..9b7f65c3efd8 100644 --- a/Documentation/admin-guide/sysctl/fs.rst +++ b/Documentation/admin-guide/sysctl/fs.rst @@ -164,8 +164,8 @@ pipe-user-pages-soft -------------------- Maximum total number of pages a non-privileged user may allocate for pipes -before the pipe size gets limited to a single page. Once this limit is reached, -new pipes will be limited to a single page in size for this user in order to +before the pipe size gets limited to two pages. Once this limit is reached, +new pipes will be limited to two pages in size for this user in order to limit total memory usage, and trying to increase them using ``fcntl()`` will be denied until usage goes below the limit again. The default value allows to allocate up to 1024 pipes at their default size. When set to 0, no limit is |