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Add comments for portable dnode / objset flags

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This patch adds some comments describing the purpose of "portable"
dnode and objset flags so that it is clear when new flags should
be added to the repective flag masks. This patch includes no
functional changes.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #7313
This commit is contained in:
Tom Caputi 2018-03-20 14:55:21 -04:00 committed by Brian Behlendorf
parent 272b5d730f
commit 089fbf313c
2 changed files with 13 additions and 1 deletions
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8
include/sys/dmu_objset.h
View File

@ -62,7 +62,13 @@ struct dmu_tx;
#define OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE (1ULL << 1)
#define OBJSET_FLAG_PROJECTQUOTA_COMPLETE (1ULL << 2)
/* all flags are currently non-portable */
/*
* This mask defines the set of flags which are "portable", meaning
* that they can be preserved when doing a raw encrypted zfs send.
* Flags included in this mask will be protected by os_portable_mac
* when the block of dnodes is encrypted. No portable flags currently
* exist.
*/
#define OBJSET_CRYPT_PORTABLE_FLAGS_MASK (0)
typedef struct objset_phys {

6
include/sys/dnode.h
View File

@ -150,6 +150,12 @@ enum dnode_dirtycontext {
/* User/Group/Project dnode accounting */
#define DNODE_FLAG_USEROBJUSED_ACCOUNTED (1 << 3)
/*
* This mask defines the set of flags which are "portable", meaning
* that they can be preserved when doing a raw encrypted zfs send.
* Flags included in this mask will be protected by AAD when the block
* of dnodes is encrypted.
*/
#define DNODE_CRYPT_PORTABLE_FLAGS_MASK (DNODE_FLAG_SPILL_BLKPTR)
/*