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Make module tunables cross platform

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Adds ZFS_MODULE_PARAM to abstract module parameter
setting to operating systems other than Linux.

Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@ixsystems.com>
Closes #9230
This commit is contained in:
Matthew Macy
2019-09-05 14:49:49 -07:00
committed by Brian Behlendorf
parent 65a91b166e
commit 03fdcb9adc
43 changed files with 544 additions and 660 deletions
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module/zfs/dbuf.c
+8 -16
View File
@@ -4757,7 +4757,6 @@ dbuf_write(dbuf_dirty_record_t *dr, arc_buf_t *data, dmu_tx_t *tx)
}
}
#if defined(_KERNEL)
EXPORT_SYMBOL(dbuf_find);
EXPORT_SYMBOL(dbuf_is_metadata);
EXPORT_SYMBOL(dbuf_destroy);
@@ -4795,31 +4794,24 @@ EXPORT_SYMBOL(dmu_buf_get_user);
EXPORT_SYMBOL(dmu_buf_get_blkptr);
/* BEGIN CSTYLED */
module_param(dbuf_cache_max_bytes, ulong, 0644);
MODULE_PARM_DESC(dbuf_cache_max_bytes,
ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, max_bytes, ULONG, ZMOD_RW,
"Maximum size in bytes of the dbuf cache.");
module_param(dbuf_cache_hiwater_pct, uint, 0644);
MODULE_PARM_DESC(dbuf_cache_hiwater_pct,
ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, hiwater_pct, UINT, ZMOD_RW,
"Percentage over dbuf_cache_max_bytes when dbufs must be evicted "
"directly.");
module_param(dbuf_cache_lowater_pct, uint, 0644);
MODULE_PARM_DESC(dbuf_cache_lowater_pct,
ZFS_MODULE_PARAM(zfs_dbuf_cache, dbuf_cache_, lowater_pct, UINT, ZMOD_RW,
"Percentage below dbuf_cache_max_bytes when the evict thread stops "
"evicting dbufs.");
module_param(dbuf_metadata_cache_max_bytes, ulong, 0644);
MODULE_PARM_DESC(dbuf_metadata_cache_max_bytes,
ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, metadata_cache_max_bytes, ULONG, ZMOD_RW,
"Maximum size in bytes of the dbuf metadata cache.");
module_param(dbuf_cache_shift, int, 0644);
MODULE_PARM_DESC(dbuf_cache_shift,
ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, cache_shift, INT, ZMOD_RW,
"Set the size of the dbuf cache to a log2 fraction of arc size.");
module_param(dbuf_metadata_cache_shift, int, 0644);
MODULE_PARM_DESC(dbuf_cache_shift,
"Set the size of the dbuf metadata cache to a log2 fraction of "
"arc size.");
ZFS_MODULE_PARAM(zfs_dbuf, dbuf_, metadata_cache_shift, INT, ZMOD_RW,
"Set the size of the dbuf metadata cache to a log2 fraction of arc "
"size.");
/* END CSTYLED */
#endif