diff options
| author | André Almeida <andrealmeid@igalia.com> | 2024-10-21 13:37:25 -0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-10-28 13:36:55 +0100 |
| commit | a713f830c9033f0e92f8f036bd49d6f2e03dde3c (patch) | |
| tree | 7ca1ce82ac844f57a05dce83266677ccfc0a2b56 /Documentation/filesystems | |
| parent | 5132f08bd3325602f4de01ccd59537c7f91e1f89 (diff) | |
| download | linux-stable-a713f830c9033f0e92f8f036bd49d6f2e03dde3c.tar.gz linux-stable-a713f830c9033f0e92f8f036bd49d6f2e03dde3c.tar.bz2 linux-stable-a713f830c9033f0e92f8f036bd49d6f2e03dde3c.zip | |
docs: tmpfs: Add casefold options
Document mounting options for casefold support in tmpfs.
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Link: https://lore.kernel.org/r/20241021-tonyk-tmpfs-v8-9-f443d5814194@igalia.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/tmpfs.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst index 56a26c843dbe..d677e0428c3f 100644 --- a/Documentation/filesystems/tmpfs.rst +++ b/Documentation/filesystems/tmpfs.rst @@ -241,6 +241,28 @@ 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-insensitive lookup support: + +================= ============================================================== +casefold Enable casefold support at this mount point using the given + argument as the encoding standard. Currently only UTF-8 + encodings are supported. If no argument is used, it will load + the latest UTF-8 encoding available. +strict_encoding Enable strict encoding at this mount point (disabled by + default). In this mode, the filesystem refuses to create file + and directory with names containing invalid UTF-8 characters. +================= ============================================================== + +This option doesn't render the entire filesystem case-insensitive. One needs to +still set the casefold flag per directory, by flipping the +F attribute in an +empty directory. Nevertheless, new directories will inherit the attribute. The +mountpoint itself cannot be made case-insensitive. + +Example:: + + $ mount -t tmpfs -o casefold=utf8-12.1.0,strict_encoding fs_name /mytmpfs + $ mount -t tmpfs -o casefold fs_name /mytmpfs + :Author: Christoph Rohland <cr@sap.com>, 1.12.01 @@ -250,3 +272,5 @@ RAM/SWAP in 10240 inodes and it is only accessible by root. KOSAKI Motohiro, 16 Mar 2010 :Updated: Chris Down, 13 July 2020 +:Updated: + André Almeida, 23 Aug 2024 |