c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-25 11:47:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/sa.c
+11 -12
View File
@@ -141,7 +141,7 @@ static int sa_modify_attrs(sa_handle_t *hdl, sa_attr_type_t newattr,
sa_data_op_t action, sa_data_locator_t *locator, void *datastart,
uint16_t buflen, dmu_tx_t *tx);
arc_byteswap_func_t sa_bswap_table[] = {
static const arc_byteswap_func_t sa_bswap_table[] = {
byteswap_uint64_array,
byteswap_uint32_array,
byteswap_uint16_array,
@@ -178,7 +178,7 @@ do { \
* won't have the registry. Only objsets of type ZFS_TYPE_FILESYSTEM will
* use this static table.
*/
sa_attr_reg_t sa_legacy_attrs[] = {
static const sa_attr_reg_t sa_legacy_attrs[] = {
{"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0},
{"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1},
{"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2},
@@ -200,16 +200,16 @@ sa_attr_reg_t sa_legacy_attrs[] = {
/*
* This is only used for objects of type DMU_OT_ZNODE
*/
sa_attr_type_t sa_legacy_zpl_layout[] = {
static const sa_attr_type_t sa_legacy_zpl_layout[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
};
/*
* Special dummy layout used for buffers with no attributes.
*/
sa_attr_type_t sa_dummy_zpl_layout[] = { 0 };
static const sa_attr_type_t sa_dummy_zpl_layout[] = { 0 };
static int sa_legacy_attr_count = ARRAY_SIZE(sa_legacy_attrs);
static const size_t sa_legacy_attr_count = ARRAY_SIZE(sa_legacy_attrs);
static kmem_cache_t *sa_cache = NULL;
static int
@@ -285,12 +285,11 @@ sa_layout_equal(sa_lot_t *tbf, sa_attr_type_t *attrs, int count)
#define SA_ATTR_HASH(attr) (zfs_crc64_table[(-1ULL ^ attr) & 0xFF])
static uint64_t
sa_layout_info_hash(sa_attr_type_t *attrs, int attr_count)
sa_layout_info_hash(const sa_attr_type_t *attrs, int attr_count)
{
int i;
uint64_t crc = -1ULL;
for (i = 0; i != attr_count; i++)
for (int i = 0; i != attr_count; i++)
crc ^= SA_ATTR_HASH(attrs[i]);
return (crc);
@@ -402,7 +401,7 @@ sa_attr_op(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count,
}
static sa_lot_t *
sa_add_layout_entry(objset_t *os, sa_attr_type_t *attrs, int attr_count,
sa_add_layout_entry(objset_t *os, const sa_attr_type_t *attrs, int attr_count,
uint64_t lot_num, uint64_t hash, boolean_t zapadd, dmu_tx_t *tx)
{
sa_os_t *sa = os->os_sa;
@@ -831,7 +830,7 @@ sa_free_attr_table(sa_os_t *sa)
}
static int
sa_attr_table_setup(objset_t *os, sa_attr_reg_t *reg_attrs, int count)
sa_attr_table_setup(objset_t *os, const sa_attr_reg_t *reg_attrs, int count)
{
sa_os_t *sa = os->os_sa;
uint64_t sa_attr_count = 0;
@@ -992,8 +991,8 @@ bail:
}
int
sa_setup(objset_t *os, uint64_t sa_obj, sa_attr_reg_t *reg_attrs, int count,
sa_attr_type_t **user_table)
sa_setup(objset_t *os, uint64_t sa_obj, const sa_attr_reg_t *reg_attrs,
int count, sa_attr_type_t **user_table)
{
zap_cursor_t zc;
zap_attribute_t za;