Re: [RFC PATCH 4/4] docs: tmpfs: Add casefold options
From: Randy Dunlap <hidden>
Date: 2021-03-23 21:59:23
Also in:
linux-fsdevel, lkml
Hi-- On 3/23/21 12:59 PM, André Almeida wrote:
quoted hunk ↗ jump to hunk
Document mounting options to enable casefold support in tmpfs. Signed-off-by: André Almeida <redacted> --- Documentation/filesystems/tmpfs.rst | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst index 0408c245785e..84c87c309bd7 100644 --- a/Documentation/filesystems/tmpfs.rst +++ b/Documentation/filesystems/tmpfs.rst@@ -170,6 +170,32 @@ So 'mount -t tmpfs -o size=10G,nr_inodes=10k,mode=700 tmpfs /mytmpfs' will give you tmpfs instance on /mytmpfs which can allocate 10GB RAM/SWAP in 10240 inodes and it is only accessible by root. +tmpfs has the following mounting options for case-insesitive lookups support: + +========= ============================================================== +casefold Enable casefold support at this mount point using the given + argument as enconding. Currently only utf8 encondings are supported.
encoding. encodings
+cf_strict Enable strict casefolding at this mouting point (disabled by
mount
+ default). This means that invalid strings should be reject by the
rejected
+ file system. +========= ============================================================== + +Note that this option doesn't enable casefold by default, one needs to set
default; one needs to set the
+casefold flag per directory, setting the +F attribute in an empty directory. New +directories within a casefolded one will inherit the flag.
-- ~Randy