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Exclude data from cores unconditionally and metadata conditionally 

This change allows us to align the code dump logic across platforms.

Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Don Brady <don.brady@delphix.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9691
This commit is contained in:
Matthew Macy 2019-12-09 12:29:56 -08:00 committed by Brian Behlendorf
parent ea79e90f99
commit 3c502d3b75
2 changed files with 12 additions and 2 deletions
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1
include/sys/zio.h
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@ -269,6 +269,7 @@ enum zio_wait_type {
typedef void zio_done_func_t(zio_t *zio);
extern int zio_exclude_metadata;
extern int zio_dva_throttle_enabled;
extern const char *zio_type_name[ZIO_TYPES];

13
module/zfs/zio.c
View File

@ -121,6 +121,11 @@ int zfs_sync_pass_rewrite = 2; /* rewrite new bps starting in this pass */
*/
#define IO_IS_ALLOCATING(zio) ((zio)->io_orig_pipeline & ZIO_STAGE_DVA_ALLOCATE)
/*
* Enable smaller cores by excluding metadata
* allocations as well.
*/
int zio_exclude_metadata = 0;
int zio_requeue_io_start_cut_in_line = 1;
#ifdef ZFS_DEBUG
@ -153,7 +158,11 @@ zio_init(void)
size_t size = (c + 1) << SPA_MINBLOCKSHIFT;
size_t p2 = size;
size_t align = 0;
size_t cflags = (size > zio_buf_debug_limit) ? KMC_NODEBUG : 0;
size_t data_cflags, cflags;
data_cflags = KMC_NODEBUG;
cflags = (zio_exclude_metadata || size > zio_buf_debug_limit) ?
KMC_NODEBUG : 0;
#if defined(_ILP32) && defined(_KERNEL)
/*
@ -201,7 +210,7 @@ zio_init(void)
(void) sprintf(name, "zio_data_buf_%lu", (ulong_t)size);
zio_data_buf_cache[c] = kmem_cache_create(name, size,
align, NULL, NULL, NULL, NULL,
data_alloc_arena, cflags);
data_alloc_arena, data_cflags);
}
}