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include: move SPA_MINBLOCKSHIFT and zio_encrypt to sys/fs/zfs.h

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These are used by userspace, so should live in a public header

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12116
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2021-05-27 17:09:32 +02:00
committed by Brian Behlendorf
parent f00f469052
commit e618e4a4ff
3 changed files with 41 additions and 38 deletions
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include/sys/spa.h
-21
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@@ -72,27 +72,6 @@ struct dsl_pool;
struct dsl_dataset;
struct dsl_crypto_params;
/*
* We currently support block sizes from 512 bytes to 16MB.
* The benefits of larger blocks, and thus larger IO, need to be weighed
* against the cost of COWing a giant block to modify one byte, and the
* large latency of reading or writing a large block.
*
* Note that although blocks up to 16MB are supported, the recordsize
* property can not be set larger than zfs_max_recordsize (default 1MB).
* See the comment near zfs_max_recordsize in dsl_dataset.c for details.
*
* Note that although the LSIZE field of the blkptr_t can store sizes up
* to 32MB, the dnode's dn_datablkszsec can only store sizes up to
* 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB.
*/
#define SPA_MINBLOCKSHIFT 9
#define SPA_OLD_MAXBLOCKSHIFT 17
#define SPA_MAXBLOCKSHIFT 24
#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
#define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT)
#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
/*
* Alignment Shift (ashift) is an immutable, internal top-level vdev property
* which can only be set at vdev creation time. Physical writes are always done