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FreeBSD: Clean up zfsdev_close to match Linux

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Resolve some oddities in zfsdev_close() which could result in a
panic and were not present in the equivalent function for Linux.

- Remove unused definition ZFS_MIN_MINOR
- FreeBSD: Simplify zfsdev state destruction
- Assert zs_minor is valid in zfsdev_close
- Make locking around zfsdev state match Linux

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11720
This commit is contained in:
Ryan Moeller
2021-03-12 19:09:15 -05:00
committed by Tony Hutter
parent 789f3d0e56
commit 525a7037c7
2 changed files with 8 additions and 11 deletions
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include/sys/zfs_ioctl.h
-1
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@@ -525,7 +525,6 @@ typedef struct zfs_useracct {
} zfs_useracct_t;
#define ZFSDEV_MAX_MINOR (1 << 16)
#define ZFS_MIN_MINOR (ZFSDEV_MAX_MINOR + 1)
#define ZPOOL_EXPORT_AFTER_SPLIT 0x1