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module/*.ko: prune .data, global .rodata

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Evaluated every variable that lives in .data (and globals in .rodata)
in the kernel modules, and constified/eliminated/localised them
appropriately. This means that all read-only data is now actually
read-only data, and, if possible, at file scope. A lot of previously-
global-symbols became inlinable (and inlined!) constants. Probably
not in a big Wowee Performance Moment, but hey.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12899
This commit is contained in:
наб
2022-01-15 00:37:55 +01:00
committed by GitHub
parent 7adc190098
commit 18168da727
147 changed files with 781 additions and 876 deletions
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module/zfs/vdev.c
+11 -11
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@@ -81,22 +81,22 @@
* 1 << (spa_slop_shift + 1), on small pools the usable space may be reduced
* (by more than 1<<spa_slop_shift) due to the embedded slog metaslab.
*/
int zfs_embedded_slog_min_ms = 64;
static int zfs_embedded_slog_min_ms = 64;
/* default target for number of metaslabs per top-level vdev */
int zfs_vdev_default_ms_count = 200;
static int zfs_vdev_default_ms_count = 200;
/* minimum number of metaslabs per top-level vdev */
int zfs_vdev_min_ms_count = 16;
static int zfs_vdev_min_ms_count = 16;
/* practical upper limit of total metaslabs per top-level vdev */
int zfs_vdev_ms_count_limit = 1ULL << 17;
static int zfs_vdev_ms_count_limit = 1ULL << 17;
/* lower limit for metaslab size (512M) */
int zfs_vdev_default_ms_shift = 29;
static int zfs_vdev_default_ms_shift = 29;
/* upper limit for metaslab size (16G) */
int zfs_vdev_max_ms_shift = 34;
static const int zfs_vdev_max_ms_shift = 34;
int vdev_validate_skip = B_FALSE;
@@ -109,18 +109,18 @@ int zfs_vdev_dtl_sm_blksz = (1 << 12);
/*
* Rate limit slow IO (delay) events to this many per second.
*/
unsigned int zfs_slow_io_events_per_second = 20;
static unsigned int zfs_slow_io_events_per_second = 20;
/*
* Rate limit checksum events after this many checksum errors per second.
*/
unsigned int zfs_checksum_events_per_second = 20;
static unsigned int zfs_checksum_events_per_second = 20;
/*
* Ignore errors during scrub/resilver. Allows to work around resilver
* upon import when there are pool errors.
*/
int zfs_scan_ignore_errors = 0;
static int zfs_scan_ignore_errors = 0;
/*
* vdev-wide space maps that have lots of entries written to them at
@@ -216,7 +216,7 @@ vdev_dbgmsg_print_tree(vdev_t *vd, int indent)
* Virtual device management.
*/
static vdev_ops_t *vdev_ops_table[] = {
static const vdev_ops_t *const vdev_ops_table[] = {
&vdev_root_ops,
&vdev_raidz_ops,
&vdev_draid_ops,
@@ -238,7 +238,7 @@ static vdev_ops_t *vdev_ops_table[] = {
static vdev_ops_t *
vdev_getops(const char *type)
{
vdev_ops_t *ops, **opspp;
const vdev_ops_t *ops, *const *opspp;
for (opspp = vdev_ops_table; (ops = *opspp) != NULL; opspp++)
if (strcmp(ops->vdev_op_type, type) == 0)