From 4a5caa4af0df5cd8f1c7f0c2f871d382662b022e Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Thu, 20 Aug 2020 19:45:38 +0200 Subject: dm crypt: document new no_workqueue flags Commit 39d42fa96ba1 ("dm crypt: add flags to optionally bypass kcryptd workqueues") introduced new dm-crypt 'no_read_workqueue' and 'no_write_workqueue' flags. Add documentation to admin guide for them. Fixes: 39d42fa96ba1 ("dm crypt: add flags to optionally bypass kcryptd workqueues") Signed-off-by: Milan Broz Signed-off-by: Mike Snitzer --- Documentation/admin-guide/device-mapper/dm-crypt.rst | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst index 8f4a3f889d43..40dc2df58cd5 100644 --- a/Documentation/admin-guide/device-mapper/dm-crypt.rst +++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst @@ -121,6 +121,14 @@ submit_from_crypt_cpus thread because it benefits CFQ to have writes submitted using the same context. +no_read_workqueue + Bypass dm-crypt internal workqueue and process read requests synchronously. + +no_write_workqueue + Bypass dm-crypt internal workqueue and process write requests synchronously. + This option is automatically enabled for host-managed zoned block devices + (e.g. host-managed SMR hard-disks). + integrity:: The device requires additional metadata per-sector stored in per-bio integrity structure. This metadata must by provided -- cgit From 4c07ae0ad493b7b2d3dd3e53870e594f136ce8a5 Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Thu, 20 Aug 2020 21:20:26 +0200 Subject: dm crypt: document encrypted keyring key option Commit 27f5411a718c4 ("dm crypt: support using encrypted keys") introduced support for encrypted keyring type. Fix documentation in admin guide to mention this type. Fixes: 27f5411a718c4 ("dm crypt: support using encrypted keys") Signed-off-by: Milan Broz Signed-off-by: Mike Snitzer --- Documentation/admin-guide/device-mapper/dm-crypt.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst index 40dc2df58cd5..bc28a9527ee5 100644 --- a/Documentation/admin-guide/device-mapper/dm-crypt.rst +++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst @@ -67,7 +67,7 @@ Parameters:: the value passed in . - Either 'logon' or 'user' kernel key type. + Either 'logon', 'user' or 'encrypted' kernel key type. The kernel keyring key description crypt target should look for -- cgit