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    Subject[PATCH 2/3] sched/psi: Remove unused parameter nbytes of psi_trigger_create()
    Date
    psi_trigger_create()'s 'nbytes' parameter is not used, so we can remove it.

    Signed-off-by: Hao Jia <jiahao.os@bytedance.com>
    ---
    include/linux/psi.h | 2 +-
    kernel/cgroup/cgroup.c | 2 +-
    kernel/sched/psi.c | 4 ++--
    3 files changed, 4 insertions(+), 4 deletions(-)

    diff --git a/include/linux/psi.h b/include/linux/psi.h
    index 89784763d19e..dd74411ac21d 100644
    --- a/include/linux/psi.h
    +++ b/include/linux/psi.h
    @@ -27,7 +27,7 @@ void psi_memstall_leave(unsigned long *flags);

    int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res);
    struct psi_trigger *psi_trigger_create(struct psi_group *group,
    - char *buf, size_t nbytes, enum psi_res res);
    + char *buf, enum psi_res res);
    void psi_trigger_destroy(struct psi_trigger *t);

    __poll_t psi_trigger_poll(void **trigger_ptr, struct file *file,
    diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
    index ffaccd6373f1..df7df5843b4f 100644
    --- a/kernel/cgroup/cgroup.c
    +++ b/kernel/cgroup/cgroup.c
    @@ -3698,7 +3698,7 @@ static ssize_t cgroup_pressure_write(struct kernfs_open_file *of, char *buf,
    }

    psi = cgroup_ino(cgrp) == 1 ? &psi_system : cgrp->psi;
    - new = psi_trigger_create(psi, buf, nbytes, res);
    + new = psi_trigger_create(psi, buf, res);
    if (IS_ERR(new)) {
    cgroup_put(cgrp);
    return PTR_ERR(new);
    diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
    index 5ee615a59fe1..ecb4b4ff4ce0 100644
    --- a/kernel/sched/psi.c
    +++ b/kernel/sched/psi.c
    @@ -1087,7 +1087,7 @@ int psi_show(struct seq_file *m, struct psi_group *group, enum psi_res res)
    }

    struct psi_trigger *psi_trigger_create(struct psi_group *group,
    - char *buf, size_t nbytes, enum psi_res res)
    + char *buf, enum psi_res res)
    {
    struct psi_trigger *t;
    enum psi_states state;
    @@ -1316,7 +1316,7 @@ static ssize_t psi_write(struct file *file, const char __user *user_buf,
    return -EBUSY;
    }

    - new = psi_trigger_create(&psi_system, buf, nbytes, res);
    + new = psi_trigger_create(&psi_system, buf, res);
    if (IS_ERR(new)) {
    mutex_unlock(&seq->lock);
    return PTR_ERR(new);
    --
    2.32.0
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