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Allow c99 code to compile

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Add the appropriate compiler flags to accept c99 code.  This will help to
minimize differences with upstream, and aid porting changes.  One change was
necessary in zvol.c because the DEFINE_IDA() macro does not work with the new
compiler flags.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Chunwei Chen <david.chen@osnexus.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #5756
This commit is contained in:
Matthew Ahrens 2017-02-08 09:27:48 -08:00 committed by Brian Behlendorf
parent 23d70cdef1
commit 4a5d7f8267
4 changed files with 6 additions and 3 deletions
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1
config/Rules.am
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@ -5,6 +5,7 @@ AM_CFLAGS = ${DEBUG_CFLAGS} -Wall -Wstrict-prototypes
AM_CFLAGS += ${NO_UNUSED_BUT_SET_VARIABLE}
AM_CFLAGS += ${NO_BOOL_COMPARE}
AM_CFLAGS += -fno-strict-aliasing
AM_CFLAGS += -std=gnu99
AM_CPPFLAGS = -D_GNU_SOURCE -D__EXTENSIONS__ -D_REENTRANT
AM_CPPFLAGS += -D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64
AM_CPPFLAGS += -D_LARGEFILE64_SOURCE -DHAVE_LARGE_STACKS=1

1
config/kernel.m4
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@ -123,6 +123,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
dnl # -Wall -fno-strict-aliasing -Wstrict-prototypes and other
dnl # compiler options are added by the kernel build system.
KERNELCPPFLAGS="$KERNELCPPFLAGS -std=gnu99"
KERNELCPPFLAGS="$KERNELCPPFLAGS -Wno-declaration-after-statement"
KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_UNUSED_BUT_SET_VARIABLE"
KERNELCPPFLAGS="$KERNELCPPFLAGS $NO_BOOL_COMPARE"

3
module/zfs/dsl_dataset.c
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@ -2956,7 +2956,6 @@ void
dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone,
dsl_dataset_t *origin_head, dmu_tx_t *tx)
{
spa_feature_t f;
dsl_pool_t *dp = dmu_tx_pool(tx);
int64_t unused_refres_delta;
blkptr_t tmp;
@ -2974,7 +2973,7 @@ dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone,
/*
* Swap per-dataset feature flags.
*/
for (f = 0; f < SPA_FEATURES; f++) {
for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
boolean_t clone_inuse;
boolean_t origin_head_inuse;

4
module/zfs/zvol.c
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@ -65,7 +65,8 @@ static list_t zvol_state_list;
#define ZVOL_HT_SIZE 1024
static struct hlist_head *zvol_htable;
#define ZVOL_HT_HEAD(hash) (&zvol_htable[(hash) & (ZVOL_HT_SIZE-1)])
static DEFINE_IDA(zvol_ida);
static struct ida zvol_ida;
/*
* The in-core state of each volume.
@ -2161,6 +2162,7 @@ zvol_init(void)
list_create(&zvol_state_list, sizeof (zvol_state_t),
offsetof(zvol_state_t, zv_next));
mutex_init(&zvol_state_lock, NULL, MUTEX_DEFAULT, NULL);
ida_init(&zvol_ida);
zvol_htable = kmem_alloc(ZVOL_HT_SIZE * sizeof (struct hlist_head),
KM_SLEEP);