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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
commit34996e42f82bfd60bc2c191e5cae3c6ab233ec6c (patch)
tree62db60558cbf089714b48daeabca82bf2b20b20e /fs/btrfs/sysfs.c
parentAdding debian version 6.8.12-1. (diff)
downloadlinux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.tar.xz
linux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.zip
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/btrfs/sysfs.c')
-rw-r--r--fs/btrfs/sysfs.c53
1 files changed, 49 insertions, 4 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 84c05246ff..c6387a8ddb 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -421,7 +421,7 @@ BTRFS_ATTR(static_feature, supported_sectorsizes,
static ssize_t acl_show(struct kobject *kobj, struct kobj_attribute *a, char *buf)
{
- return sysfs_emit(buf, "%d\n", !!IS_ENABLED(CONFIG_BTRFS_FS_POSIX_ACL));
+ return sysfs_emit(buf, "%d\n", IS_ENABLED(CONFIG_BTRFS_FS_POSIX_ACL));
}
BTRFS_ATTR(static_feature, acl, acl_show);
@@ -1228,11 +1228,12 @@ static ssize_t btrfs_read_policy_show(struct kobject *kobj,
struct kobj_attribute *a, char *buf)
{
struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
+ const enum btrfs_read_policy policy = READ_ONCE(fs_devices->read_policy);
ssize_t ret = 0;
int i;
for (i = 0; i < BTRFS_NR_READ_POLICY; i++) {
- if (fs_devices->read_policy == i)
+ if (policy == i)
ret += sysfs_emit_at(buf, ret, "%s[%s]",
(ret == 0 ? "" : " "),
btrfs_read_policy_name[i]);
@@ -1256,8 +1257,8 @@ static ssize_t btrfs_read_policy_store(struct kobject *kobj,
for (i = 0; i < BTRFS_NR_READ_POLICY; i++) {
if (sysfs_streq(buf, btrfs_read_policy_name[i])) {
- if (i != fs_devices->read_policy) {
- fs_devices->read_policy = i;
+ if (i != READ_ONCE(fs_devices->read_policy)) {
+ WRITE_ONCE(fs_devices->read_policy, i);
btrfs_info(fs_devices->fs_info,
"read policy set to '%s'",
btrfs_read_policy_name[i]);
@@ -1306,6 +1307,47 @@ static ssize_t btrfs_bg_reclaim_threshold_store(struct kobject *kobj,
BTRFS_ATTR_RW(, bg_reclaim_threshold, btrfs_bg_reclaim_threshold_show,
btrfs_bg_reclaim_threshold_store);
+#ifdef CONFIG_BTRFS_DEBUG
+static ssize_t btrfs_offload_csum_show(struct kobject *kobj,
+ struct kobj_attribute *a, char *buf)
+{
+ struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
+
+ switch (READ_ONCE(fs_devices->offload_csum_mode)) {
+ case BTRFS_OFFLOAD_CSUM_AUTO:
+ return sysfs_emit(buf, "auto\n");
+ case BTRFS_OFFLOAD_CSUM_FORCE_ON:
+ return sysfs_emit(buf, "1\n");
+ case BTRFS_OFFLOAD_CSUM_FORCE_OFF:
+ return sysfs_emit(buf, "0\n");
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+}
+
+static ssize_t btrfs_offload_csum_store(struct kobject *kobj,
+ struct kobj_attribute *a, const char *buf,
+ size_t len)
+{
+ struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
+ int ret;
+ bool val;
+
+ ret = kstrtobool(buf, &val);
+ if (ret == 0)
+ WRITE_ONCE(fs_devices->offload_csum_mode,
+ val ? BTRFS_OFFLOAD_CSUM_FORCE_ON : BTRFS_OFFLOAD_CSUM_FORCE_OFF);
+ else if (ret == -EINVAL && sysfs_streq(buf, "auto"))
+ WRITE_ONCE(fs_devices->offload_csum_mode, BTRFS_OFFLOAD_CSUM_AUTO);
+ else
+ return -EINVAL;
+
+ return len;
+}
+BTRFS_ATTR_RW(, offload_csum, btrfs_offload_csum_show, btrfs_offload_csum_store);
+#endif
+
/*
* Per-filesystem information and stats.
*
@@ -1325,6 +1367,9 @@ static const struct attribute *btrfs_attrs[] = {
BTRFS_ATTR_PTR(, bg_reclaim_threshold),
BTRFS_ATTR_PTR(, commit_stats),
BTRFS_ATTR_PTR(, temp_fsid),
+#ifdef CONFIG_BTRFS_DEBUG
+ BTRFS_ATTR_PTR(, offload_csum),
+#endif
NULL,
};