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Add no_read/write_wrokqueue to dm-crypt options.

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These performance options, introduced in kernel 5.9, configures
dm-crypt to bypass read or write workqueues and run encryption
synchronously.

Also support persistent storage of these flags for LUKS2.
This commit is contained in:
Milan Broz
2020-08-20 20:58:44 +02:00
parent 03ecfe3478
commit e7ca35091c
7 changed files with 95 additions and 8 deletions
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4
lib/libcryptsetup.h
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@@ -1105,6 +1105,10 @@ int crypt_keyslot_destroy(struct crypt_device *cd, int keyslot);
#define CRYPT_ACTIVATE_IV_LARGE_SECTORS (1 << 22)
/** dm-verity: panic_on_corruption flag - panic kernel on corruption */
#define CRYPT_ACTIVATE_PANIC_ON_CORRUPTION (1 << 23)
/** dm-crypt: bypass internal workqueue and process read requests synchronously. */
#define CRYPT_ACTIVATE_NO_READ_WORKQUEUE (1 << 24)
/** dm-crypt: bypass internal workqueue and process write requests synchronously. */
#define CRYPT_ACTIVATE_NO_WRITE_WORKQUEUE (1 << 25)
/**
* Active device runtime attributes