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FreeBSD: Add support for procfs_list

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The procfs_list interface is required by several kstats. Implement
this functionality for FreeBSD to provide access to these kstats.

Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #10890
This commit is contained in:
Matthew Macy
2020-09-23 16:43:51 -07:00
committed by Brian Behlendorf
parent 227273efa4
commit c70c6e004e
11 changed files with 201 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/spl/spl-procfs-list.c
+9 -1
View File
@@ -207,6 +207,7 @@ static const kstat_proc_op_t procfs_list_operations = {
*/
void
procfs_list_install(const char *module,
const char *submodule,
const char *name,
mode_t mode,
procfs_list_t *procfs_list,
@@ -215,6 +216,12 @@ procfs_list_install(const char *module,
int (*clear)(procfs_list_t *procfs_list),
size_t procfs_list_node_off)
{
char *modulestr;
if (submodule != NULL)
modulestr = kmem_asprintf("%s/%s", module, submodule);
else
modulestr = kmem_asprintf("%s", module);
mutex_init(&procfs_list->pl_lock, NULL, MUTEX_DEFAULT, NULL);
list_create(&procfs_list->pl_list,
procfs_list_node_off + sizeof (procfs_list_node_t),
@@ -225,9 +232,10 @@ procfs_list_install(const char *module,
procfs_list->pl_clear = clear;
procfs_list->pl_node_offset = procfs_list_node_off;
kstat_proc_entry_init(&procfs_list->pl_kstat_entry, module, name);
kstat_proc_entry_init(&procfs_list->pl_kstat_entry, modulestr, name);
kstat_proc_entry_install(&procfs_list->pl_kstat_entry, mode,
&procfs_list_operations, procfs_list);
kmem_strfree(modulestr);
}
EXPORT_SYMBOL(procfs_list_install);