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-rw-r--r--fs/file.c1
-rw-r--r--fs/hugetlbfs/inode.c2
-rw-r--r--fs/inode.c8
-rw-r--r--fs/kernfs/file.c31
-rw-r--r--fs/ocfs2/alloc.c159
-rw-r--r--fs/ocfs2/cluster/nodemanager.c14
-rw-r--r--fs/ocfs2/dlmglue.c5
-rw-r--r--fs/ocfs2/ocfs2.h1
-rw-r--r--fs/ocfs2/ocfs2_trace.h2
-rw-r--r--fs/ocfs2/slot_map.c8
-rw-r--r--fs/ocfs2/super.c2
-rw-r--r--fs/pipe.c3
-rw-r--r--fs/proc/array.c16
-rw-r--r--fs/proc/base.c4
-rw-r--r--fs/proc/internal.h2
-rw-r--r--fs/proc/page.c4
-rw-r--r--fs/proc/root.c2
-rw-r--r--fs/proc/self.c16
-rw-r--r--fs/proc/stat.c60
-rw-r--r--fs/proc/task_mmu.c8
-rw-r--r--fs/proc/task_nommu.c2
-rw-r--r--fs/proc/thread_self.c16
22 files changed, 208 insertions, 158 deletions
diff --git a/fs/file.c b/fs/file.c
index 3209ee271c41..a10487aa0a84 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -457,6 +457,7 @@ struct files_struct init_files = {
.full_fds_bits = init_files.full_fds_bits_init,
},
.file_lock = __SPIN_LOCK_UNLOCKED(init_files.file_lock),
+ .resize_wait = __WAIT_QUEUE_HEAD_INITIALIZER(init_files.resize_wait),
};
static unsigned int find_next_fd(struct fdtable *fdt, unsigned int start)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a7fa037b876b..b0eef008de67 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -530,7 +530,7 @@ static long hugetlbfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
inode_lock(inode);
/* protected by i_mutex */
- if (info->seals & F_SEAL_WRITE) {
+ if (info->seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE)) {
inode_unlock(inode);
return -EPERM;
}
diff --git a/fs/inode.c b/fs/inode.c
index 73432e64f874..e9d97add2b36 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2093,14 +2093,8 @@ EXPORT_SYMBOL(inode_dio_wait);
void inode_set_flags(struct inode *inode, unsigned int flags,
unsigned int mask)
{
- unsigned int old_flags, new_flags;
-
WARN_ON_ONCE(flags & ~mask);
- do {
- old_flags = READ_ONCE(inode->i_flags);
- new_flags = (old_flags & ~mask) | flags;
- } while (unlikely(cmpxchg(&inode->i_flags, old_flags,
- new_flags) != old_flags));
+ set_mask_bits(&inode->i_flags, mask, flags);
}
EXPORT_SYMBOL(inode_set_flags);
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index f8d5021a652e..ae948aaa4c53 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -832,26 +832,35 @@ void kernfs_drain_open_files(struct kernfs_node *kn)
* to see if it supports poll (Neither 'poll' nor 'select' return
* an appropriate error code). When in doubt, set a suitable timeout value.
*/
+__poll_t kernfs_generic_poll(struct kernfs_open_file *of, poll_table *wait)
+{
+ struct kernfs_node *kn = kernfs_dentry_node(of->file->f_path.dentry);
+ struct kernfs_open_node *on = kn->attr.open;
+
+ poll_wait(of->file, &on->poll, wait);
+
+ if (of->event != atomic_read(&on->event))
+ return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
+
+ return DEFAULT_POLLMASK;
+}
+
static __poll_t kernfs_fop_poll(struct file *filp, poll_table *wait)
{
struct kernfs_open_file *of = kernfs_of(filp);
struct kernfs_node *kn = kernfs_dentry_node(filp->f_path.dentry);
- struct kernfs_open_node *on = kn->attr.open;
+ __poll_t ret;
if (!kernfs_get_active(kn))
- goto trigger;
+ return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
- poll_wait(filp, &on->poll, wait);
+ if (kn->attr.ops->poll)
+ ret = kn->attr.ops->poll(of, wait);
+ else
+ ret = kernfs_generic_poll(of, wait);
kernfs_put_active(kn);
-
- if (of->event != atomic_read(&on->event))
- goto trigger;
-
- return DEFAULT_POLLMASK;
-
- trigger:
- return DEFAULT_POLLMASK|EPOLLERR|EPOLLPRI;
+ return ret;
}
static void kernfs_notify_workfn(struct work_struct *work)
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index d1cbb27808e2..6f0999015a44 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7532,10 +7532,11 @@ static int ocfs2_trim_group(struct super_block *sb,
return count;
}
-int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
+static
+int ocfs2_trim_mainbm(struct super_block *sb, struct fstrim_range *range)
{
struct ocfs2_super *osb = OCFS2_SB(sb);
- u64 start, len, trimmed, first_group, last_group, group;
+ u64 start, len, trimmed = 0, first_group, last_group = 0, group = 0;
int ret, cnt;
u32 first_bit, last_bit, minlen;
struct buffer_head *main_bm_bh = NULL;
@@ -7543,7 +7544,6 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
struct buffer_head *gd_bh = NULL;
struct ocfs2_dinode *main_bm;
struct ocfs2_group_desc *gd = NULL;
- struct ocfs2_trim_fs_info info, *pinfo = NULL;
start = range->start >> osb->s_clustersize_bits;
len = range->len >> osb->s_clustersize_bits;
@@ -7552,6 +7552,9 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (minlen >= osb->bitmap_cpg || range->len < sb->s_blocksize)
return -EINVAL;
+ trace_ocfs2_trim_mainbm(start, len, minlen);
+
+next_group:
main_bm_inode = ocfs2_get_system_file_inode(osb,
GLOBAL_BITMAP_SYSTEM_INODE,
OCFS2_INVALID_SLOT);
@@ -7570,64 +7573,34 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
}
main_bm = (struct ocfs2_dinode *)main_bm_bh->b_data;
- if (start >= le32_to_cpu(main_bm->i_clusters)) {
- ret = -EINVAL;
- goto out_unlock;
- }
-
- len = range->len >> osb->s_clustersize_bits;
- if (start + len > le32_to_cpu(main_bm->i_clusters))
- len = le32_to_cpu(main_bm->i_clusters) - start;
-
- trace_ocfs2_trim_fs(start, len, minlen);
-
- ocfs2_trim_fs_lock_res_init(osb);
- ret = ocfs2_trim_fs_lock(osb, NULL, 1);
- if (ret < 0) {
- if (ret != -EAGAIN) {
- mlog_errno(ret);
- ocfs2_trim_fs_lock_res_uninit(osb);
+ /*
+ * Do some check before trim the first group.
+ */
+ if (!group) {
+ if (start >= le32_to_cpu(main_bm->i_clusters)) {
+ ret = -EINVAL;
goto out_unlock;
}
- mlog(ML_NOTICE, "Wait for trim on device (%s) to "
- "finish, which is running from another node.\n",
- osb->dev_str);
- ret = ocfs2_trim_fs_lock(osb, &info, 0);
- if (ret < 0) {
- mlog_errno(ret);
- ocfs2_trim_fs_lock_res_uninit(osb);
- goto out_unlock;
- }
+ if (start + len > le32_to_cpu(main_bm->i_clusters))
+ len = le32_to_cpu(main_bm->i_clusters) - start;
- if (info.tf_valid && info.tf_success &&
- info.tf_start == start && info.tf_len == len &&
- info.tf_minlen == minlen) {
- /* Avoid sending duplicated trim to a shared device */
- mlog(ML_NOTICE, "The same trim on device (%s) was "
- "just done from node (%u), return.\n",
- osb->dev_str, info.tf_nodenum);
- range->len = info.tf_trimlen;
- goto out_trimunlock;
- }
+ /*
+ * Determine first and last group to examine based on
+ * start and len
+ */
+ first_group = ocfs2_which_cluster_group(main_bm_inode, start);
+ if (first_group == osb->first_cluster_group_blkno)
+ first_bit = start;
+ else
+ first_bit = start - ocfs2_blocks_to_clusters(sb,
+ first_group);
+ last_group = ocfs2_which_cluster_group(main_bm_inode,
+ start + len - 1);
+ group = first_group;
}
- info.tf_nodenum = osb->node_num;
- info.tf_start = start;
- info.tf_len = len;
- info.tf_minlen = minlen;
-
- /* Determine first and last group to examine based on start and len */
- first_group = ocfs2_which_cluster_group(main_bm_inode, start);
- if (first_group == osb->first_cluster_group_blkno)
- first_bit = start;
- else
- first_bit = start - ocfs2_blocks_to_clusters(sb, first_group);
- last_group = ocfs2_which_cluster_group(main_bm_inode, start + len - 1);
- last_bit = osb->bitmap_cpg;
-
- trimmed = 0;
- for (group = first_group; group <= last_group;) {
+ do {
if (first_bit + len >= osb->bitmap_cpg)
last_bit = osb->bitmap_cpg;
else
@@ -7659,21 +7632,81 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
group = ocfs2_clusters_to_blocks(sb, osb->bitmap_cpg);
else
group += ocfs2_clusters_to_blocks(sb, osb->bitmap_cpg);
- }
- range->len = trimmed * sb->s_blocksize;
+ } while (0);
- info.tf_trimlen = range->len;
- info.tf_success = (ret ? 0 : 1);
- pinfo = &info;
-out_trimunlock:
- ocfs2_trim_fs_unlock(osb, pinfo);
- ocfs2_trim_fs_lock_res_uninit(osb);
out_unlock:
ocfs2_inode_unlock(main_bm_inode, 0);
brelse(main_bm_bh);
+ main_bm_bh = NULL;
out_mutex:
inode_unlock(main_bm_inode);
iput(main_bm_inode);
+
+ /*
+ * If all the groups trim are not done or failed, but we should release
+ * main_bm related locks for avoiding the current IO starve, then go to
+ * trim the next group
+ */
+ if (ret >= 0 && group <= last_group)
+ goto next_group;
out:
+ range->len = trimmed * sb->s_blocksize;
+ return ret;
+}
+
+int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
+{
+ int ret;
+ struct ocfs2_super *osb = OCFS2_SB(sb);
+ struct ocfs2_trim_fs_info info, *pinfo = NULL;
+
+ ocfs2_trim_fs_lock_res_init(osb);
+
+ trace_ocfs2_trim_fs(range->start, range->len, range->minlen);
+
+ ret = ocfs2_trim_fs_lock(osb, NULL, 1);
+ if (ret < 0) {
+ if (ret != -EAGAIN) {
+ mlog_errno(ret);
+ ocfs2_trim_fs_lock_res_uninit(osb);
+ return ret;
+ }
+
+ mlog(ML_NOTICE, "Wait for trim on device (%s) to "
+ "finish, which is running from another node.\n",
+ osb->dev_str);
+ ret = ocfs2_trim_fs_lock(osb, &info, 0);
+ if (ret < 0) {
+ mlog_errno(ret);
+ ocfs2_trim_fs_lock_res_uninit(osb);
+ return ret;
+ }
+
+ if (info.tf_valid && info.tf_success &&
+ info.tf_start == range->start &&
+ info.tf_len == range->len &&
+ info.tf_minlen == range->minlen) {
+ /* Avoid sending duplicated trim to a shared device */
+ mlog(ML_NOTICE, "The same trim on device (%s) was "
+ "just done from node (%u), return.\n",
+ osb->dev_str, info.tf_nodenum);
+ range->len = info.tf_trimlen;
+ goto out;
+ }
+ }
+
+ info.tf_nodenum = osb->node_num;
+ info.tf_start = range->start;
+ info.tf_len = range->len;
+ info.tf_minlen = range->minlen;
+
+ ret = ocfs2_trim_mainbm(sb, range);
+
+ info.tf_trimlen = range->len;
+ info.tf_success = (ret < 0 ? 0 : 1);
+ pinfo = &info;
+out:
+ ocfs2_trim_fs_unlock(osb, pinfo);
+ ocfs2_trim_fs_lock_res_uninit(osb);
return ret;
}
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index 0e4166cc23a0..4ac775e32240 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -621,13 +621,15 @@ static void o2nm_node_group_drop_item(struct config_group *group,
struct o2nm_node *node = to_o2nm_node(item);
struct o2nm_cluster *cluster = to_o2nm_cluster(group->cg_item.ci_parent);
- o2net_disconnect_node(node);
+ if (cluster->cl_nodes[node->nd_num] == node) {
+ o2net_disconnect_node(node);
- if (cluster->cl_has_local &&
- (cluster->cl_local_node == node->nd_num)) {
- cluster->cl_has_local = 0;
- cluster->cl_local_node = O2NM_INVALID_NODE_NUM;
- o2net_stop_listening(node);
+ if (cluster->cl_has_local &&
+ (cluster->cl_local_node == node->nd_num)) {
+ cluster->cl_has_local = 0;
+ cluster->cl_local_node = O2NM_INVALID_NODE_NUM;
+ o2net_stop_listening(node);
+ }
}
/* XXX call into net to stop this node from trading messages */
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 7c835824247e..af405586c5b1 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -686,6 +686,9 @@ void ocfs2_trim_fs_lock_res_init(struct ocfs2_super *osb)
{
struct ocfs2_lock_res *lockres = &osb->osb_trim_fs_lockres;
+ /* Only one trimfs thread are allowed to work at the same time. */
+ mutex_lock(&osb->obs_trim_fs_mutex);
+
ocfs2_lock_res_init_once(lockres);
ocfs2_build_lock_name(OCFS2_LOCK_TYPE_TRIM_FS, 0, 0, lockres->l_name);
ocfs2_lock_res_init_common(osb, lockres, OCFS2_LOCK_TYPE_TRIM_FS,
@@ -698,6 +701,8 @@ void ocfs2_trim_fs_lock_res_uninit(struct ocfs2_super *osb)
ocfs2_simple_drop_lockres(osb, lockres);
ocfs2_lock_res_free(lockres);
+
+ mutex_unlock(&osb->obs_trim_fs_mutex);
}
static void ocfs2_orphan_scan_lock_res_init(struct ocfs2_lock_res *res,
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 4f86ac0027b5..1f029fbe8b8d 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -407,6 +407,7 @@ struct ocfs2_super
struct ocfs2_lock_res osb_rename_lockres;
struct ocfs2_lock_res osb_nfs_sync_lockres;
struct ocfs2_lock_res osb_trim_fs_lockres;
+ struct mutex obs_trim_fs_mutex;
struct ocfs2_dlm_debug *osb_dlm_debug;
struct dentry *osb_debug_root;
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 2ee76a90ba8f..dc4bce1649c1 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -712,6 +712,8 @@ TRACE_EVENT(ocfs2_trim_extent,
DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_trim_group);
+DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_trim_mainbm);
+
DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_trim_fs);
/* End of trace events for fs/ocfs2/alloc.c. */
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index d7407994f308..ea0756d83250 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -55,7 +55,7 @@ struct ocfs2_slot_info {
unsigned int si_blocks;
struct buffer_head **si_bh;
unsigned int si_num_slots;
- struct ocfs2_slot *si_slots;
+ struct ocfs2_slot si_slots[];
};
@@ -420,9 +420,7 @@ int ocfs2_init_slot_info(struct ocfs2_super *osb)
struct inode *inode = NULL;
struct ocfs2_slot_info *si;
- si = kzalloc(sizeof(struct ocfs2_slot_info) +
- (sizeof(struct ocfs2_slot) * osb->max_slots),
- GFP_KERNEL);
+ si = kzalloc(struct_size(si, si_slots, osb->max_slots), GFP_KERNEL);
if (!si) {
status = -ENOMEM;
mlog_errno(status);
@@ -431,8 +429,6 @@ int ocfs2_init_slot_info(struct ocfs2_super *osb)
si->si_extended = ocfs2_uses_extended_slot_map(osb);
si->si_num_slots = osb->max_slots;
- si->si_slots = (struct ocfs2_slot *)((char *)si +
- sizeof(struct ocfs2_slot_info));
inode = ocfs2_get_system_file_inode(osb, SLOT_MAP_SYSTEM_INODE,
OCFS2_INVALID_SLOT);
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 3415e0b09398..96ae7cedd487 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1847,6 +1847,8 @@ static int ocfs2_mount_volume(struct super_block *sb)
if (ocfs2_is_hard_readonly(osb))
goto leave;
+ mutex_init(&osb->obs_trim_fs_mutex);
+
status = ocfs2_dlm_init(osb);
if (status < 0) {
mlog_errno(status);
diff --git a/fs/pipe.c b/fs/pipe.c
index bdc5d3c0977d..51d5fd8840ab 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -140,8 +140,7 @@ static int anon_pipe_buf_steal(struct pipe_inode_info *pipe,
struct page *page = buf->page;
if (page_count(page) == 1) {
- if (memcg_kmem_enabled())
- memcg_kmem_uncharge(page, 0);
+ memcg_kmem_uncharge(page, 0);
__SetPageLocked(page);
return 0;
}
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 9d428d5a0ac8..2edbb657f859 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -343,28 +343,28 @@ static inline void task_seccomp(struct seq_file *m, struct task_struct *p)
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
#endif
- seq_printf(m, "\nSpeculation_Store_Bypass:\t");
+ seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
case -EINVAL:
- seq_printf(m, "unknown");
+ seq_puts(m, "unknown");
break;
case PR_SPEC_NOT_AFFECTED:
- seq_printf(m, "not vulnerable");
+ seq_puts(m, "not vulnerable");
break;
case PR_SPEC_PRCTL | PR_SPEC_FORCE_DISABLE:
- seq_printf(m, "thread force mitigated");
+ seq_puts(m, "thread force mitigated");
break;
case PR_SPEC_PRCTL | PR_SPEC_DISABLE:
- seq_printf(m, "thread mitigated");
+ seq_puts(m, "thread mitigated");
break;
case PR_SPEC_PRCTL | PR_SPEC_ENABLE:
- seq_printf(m, "thread vulnerable");
+ seq_puts(m, "thread vulnerable");
break;
case PR_SPEC_DISABLE:
- seq_printf(m, "globally mitigated");
+ seq_puts(m, "globally mitigated");
break;
default:
- seq_printf(m, "vulnerable");
+ seq_puts(m, "vulnerable");
break;
}
seq_putc(m, '\n');
diff --git a/fs/proc/base.c b/fs/proc/base.c
index f5ed9512d193..511b279ec69c 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -456,7 +456,7 @@ static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
if (unlikely(!sched_info_on()))
- seq_printf(m, "0 0 0\n");
+ seq_puts(m, "0 0 0\n");
else
seq_printf(m, "%llu %llu %lu\n",
(unsigned long long)task->se.sum_exec_runtime,
@@ -3161,7 +3161,7 @@ static struct dentry *proc_pid_instantiate(struct dentry * dentry,
return d_splice_alias(inode, dentry);
}
-struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsigned int flags)
+struct dentry *proc_pid_lookup(struct dentry *dentry, unsigned int flags)
{
struct task_struct *task;
unsigned tgid;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 95b14196f284..4fc5a9b68f76 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -162,7 +162,7 @@ extern struct inode *proc_pid_make_inode(struct super_block *, struct task_struc
extern void pid_update_inode(struct task_struct *, struct inode *);
extern int pid_delete_dentry(const struct dentry *);
extern int proc_pid_readdir(struct file *, struct dir_context *);
-extern struct dentry *proc_pid_lookup(struct inode *, struct dentry *, unsigned int);
+struct dentry *proc_pid_lookup(struct dentry *, unsigned int);
extern loff_t mem_lseek(struct file *, loff_t, int);
/* Lookups */
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 40b05e0d4274..544d1ee15aee 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -152,8 +152,8 @@ u64 stable_page_flags(struct page *page)
else if (page_count(page) == 0 && is_free_buddy_page(page))
u |= 1 << KPF_BUDDY;
- if (PageBalloon(page))
- u |= 1 << KPF_BALLOON;
+ if (PageOffline(page))
+ u |= 1 << KPF_OFFLINE;
if (PageTable(page))
u |= 1 << KPF_PGTABLE;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index f4b1a9d2eca6..621e6ec322ca 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -154,7 +154,7 @@ static int proc_root_getattr(const struct path *path, struct kstat *stat,
static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry, unsigned int flags)
{
- if (!proc_pid_lookup(dir, dentry, flags))
+ if (!proc_pid_lookup(dentry, flags))
return NULL;
return proc_lookup(dir, dentry, flags);
diff --git a/fs/proc/self.c b/fs/proc/self.c
index 127265e5c55f..57c0a1047250 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -38,6 +38,7 @@ int proc_setup_self(struct super_block *s)
struct inode *root_inode = d_inode(s->s_root);
struct pid_namespace *ns = proc_pid_ns(root_inode);
struct dentry *self;
+ int ret = -ENOMEM;
inode_lock(root_inode);
self = d_alloc_name(s->s_root, "self");
@@ -51,20 +52,19 @@ int proc_setup_self(struct super_block *s)
inode->i_gid = GLOBAL_ROOT_GID;
inode->i_op = &proc_self_inode_operations;
d_add(self, inode);
+ ret = 0;
} else {
dput(self);
- self = ERR_PTR(-ENOMEM);
}
- } else {
- self = ERR_PTR(-ENOMEM);
}
inode_unlock(root_inode);
- if (IS_ERR(self)) {
+
+ if (ret)
pr_err("proc_fill_super: can't allocate /proc/self\n");
- return PTR_ERR(self);
- }
- ns->proc_self = self;
- return 0;
+ else
+ ns->proc_self = self;
+
+ return ret;
}
void __init proc_self_init(void)
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 76175211b304..80c305f206bb 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -23,21 +23,21 @@
#ifdef arch_idle_time
-static u64 get_idle_time(int cpu)
+static u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
{
u64 idle;
- idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
+ idle = kcs->cpustat[CPUTIME_IDLE];
if (cpu_online(cpu) && !nr_iowait_cpu(cpu))
idle += arch_idle_time(cpu);
return idle;
}
-static u64 get_iowait_time(int cpu)
+static u64 get_iowait_time(struct kernel_cpustat *kcs, int cpu)
{
u64 iowait;
- iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
+ iowait = kcs->cpustat[CPUTIME_IOWAIT];
if (cpu_online(cpu) && nr_iowait_cpu(cpu))
iowait += arch_idle_time(cpu);
return iowait;
@@ -45,7 +45,7 @@ static u64 get_iowait_time(int cpu)
#else
-static u64 get_idle_time(int cpu)
+static u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
{
u64 idle, idle_usecs = -1ULL;
@@ -54,14 +54,14 @@ static u64 get_idle_time(int cpu)
if (idle_usecs == -1ULL)
/* !NO_HZ or cpu offline so we can rely on cpustat.idle */
- idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
+ idle = kcs->cpustat[CPUTIME_IDLE];
else
idle = idle_usecs * NSEC_PER_USEC;
return idle;
}
-static u64 get_iowait_time(int cpu)
+static u64 get_iowait_time(struct kernel_cpustat *kcs, int cpu)
{
u64 iowait, iowait_usecs = -1ULL;
@@ -70,7 +70,7 @@ static u64 get_iowait_time(int cpu)
if (iowait_usecs == -1ULL)
/* !NO_HZ or cpu offline so we can rely on cpustat.iowait */
- iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
+ iowait = kcs->cpustat[CPUTIME_IOWAIT];
else
iowait = iowait_usecs * NSEC_PER_USEC;
@@ -120,16 +120,18 @@ static int show_stat(struct seq_file *p, void *v)
getboottime64(&boottime);
for_each_possible_cpu(i) {
- user += kcpustat_cpu(i).cpustat[CPUTIME_USER];
- nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
- system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
- idle += get_idle_time(i);
- iowait += get_iowait_time(i);
- irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
- softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
- steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
- guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
- guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+ struct kernel_cpustat *kcs = &kcpustat_cpu(i);
+
+ user += kcs->cpustat[CPUTIME_USER];
+ nice += kcs->cpustat[CPUTIME_NICE];
+ system += kcs->cpustat[CPUTIME_SYSTEM];
+ idle += get_idle_time(kcs, i);
+ iowait += get_iowait_time(kcs, i);
+ irq += kcs->cpustat[CPUTIME_IRQ];
+ softirq += kcs->cpustat[CPUTIME_SOFTIRQ];
+ steal += kcs->cpustat[CPUTIME_STEAL];
+ guest += kcs->cpustat[CPUTIME_GUEST];
+ guest_nice += kcs->cpustat[CPUTIME_GUEST_NICE];
sum += kstat_cpu_irqs_sum(i);
sum += arch_irq_stat_cpu(i);
@@ -155,17 +157,19 @@ static int show_stat(struct seq_file *p, void *v)
seq_putc(p, '\n');
for_each_online_cpu(i) {
+ struct kernel_cpustat *kcs = &kcpustat_cpu(i);
+
/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
- user = kcpustat_cpu(i).cpustat[CPUTIME_USER];
- nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
- system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
- idle = get_idle_time(i);
- iowait = get_iowait_time(i);
- irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
- softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
- steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
- guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
- guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+ user = kcs->cpustat[CPUTIME_USER];
+ nice = kcs->cpustat[CPUTIME_NICE];
+ system = kcs->cpustat[CPUTIME_SYSTEM];
+ idle = get_idle_time(kcs, i);
+ iowait = get_iowait_time(kcs, i);
+ irq = kcs->cpustat[CPUTIME_IRQ];
+ softirq = kcs->cpustat[CPUTIME_SOFTIRQ];
+ steal = kcs->cpustat[CPUTIME_STEAL];
+ guest = kcs->cpustat[CPUTIME_GUEST];
+ guest_nice = kcs->cpustat[CPUTIME_GUEST_NICE];
seq_printf(p, "cpu%d", i);
seq_put_decimal_ull(p, " ", nsec_to_clock_t(user));
seq_put_decimal_ull(p, " ", nsec_to_clock_t(nice));
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 85b0ef890b28..beccb0b1d57c 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -948,10 +948,12 @@ static inline void clear_soft_dirty(struct vm_area_struct *vma,
pte_t ptent = *pte;
if (pte_present(ptent)) {
- ptent = ptep_modify_prot_start(vma->vm_mm, addr, pte);
- ptent = pte_wrprotect(ptent);
+ pte_t old_pte;
+
+ old_pte = ptep_modify_prot_start(vma, addr, pte);
+ ptent = pte_wrprotect(old_pte);
ptent = pte_clear_soft_dirty(ptent);
- ptep_modify_prot_commit(vma->vm_mm, addr, pte, ptent);
+ ptep_modify_prot_commit(vma, addr, pte, old_pte, ptent);
} else if (is_swap_pte(ptent)) {
ptent = pte_swp_clear_soft_dirty(ptent);
set_pte_at(vma->vm_mm, addr, pte, ptent);
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index f912872fbf91..36bf0f2e102e 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -178,7 +178,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
seq_file_path(m, file, "");
} else if (mm && is_stack(vma)) {
seq_pad(m, ' ');
- seq_printf(m, "[stack]");
+ seq_puts(m, "[stack]");
}
seq_putc(m, '\n');
diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c
index b905010ca9eb..f61ae53533f5 100644
--- a/fs/proc/thread_self.c
+++ b/fs/proc/thread_self.c
@@ -38,6 +38,7 @@ int proc_setup_thread_self(struct super_block *s)
struct inode *root_inode = d_inode(s->s_root);
struct pid_namespace *ns = proc_pid_ns(root_inode);
struct dentry *thread_self;
+ int ret = -ENOMEM;
inode_lock(root_inode);
thread_self = d_alloc_name(s->s_root, "thread-self");
@@ -51,20 +52,19 @@ int proc_setup_thread_self(struct super_block *s)
inode->i_gid = GLOBAL_ROOT_GID;
inode->i_op = &proc_thread_self_inode_operations;
d_add(thread_self, inode);
+ ret = 0;
} else {
dput(thread_self);
- thread_self = ERR_PTR(-ENOMEM);
}
- } else {
- thread_self = ERR_PTR(-ENOMEM);
}
inode_unlock(root_inode);
- if (IS_ERR(thread_self)) {
+
+ if (ret)
pr_err("proc_fill_super: can't allocate /proc/thread_self\n");
- return PTR_ERR(thread_self);
- }
- ns->proc_thread_self = thread_self;
- return 0;
+ else
+ ns->proc_thread_self = thread_self;
+
+ return ret;
}
void __init proc_thread_self_init(void)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 00:56:46 +0000