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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-04 10:00:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-04 10:00:01 -0700
commitcf626b0da78df6669c6b5f51ddd9a70a0702e579 (patch)
tree45d29a4cb7574aed7f140814ed22088ded21c291 /kernel
parent9c50eafc32ddbd166c8a2bbaecd4ad201c452b14 (diff)
parent5ef03dbd91855544cd4c7c1910c3ef5226ee87e8 (diff)
downloadlinux-cf626b0da78df6669c6b5f51ddd9a70a0702e579.tar.bz2
Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull procfs updates from Al Viro: "Christoph's proc_create_... cleanups series" * 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (44 commits) xfs, proc: hide unused xfs procfs helpers isdn/gigaset: add back gigaset_procinfo assignment proc: update SIZEOF_PDE_INLINE_NAME for the new pde fields tty: replace ->proc_fops with ->proc_show ide: replace ->proc_fops with ->proc_show ide: remove ide_driver_proc_write isdn: replace ->proc_fops with ->proc_show atm: switch to proc_create_seq_private atm: simplify procfs code bluetooth: switch to proc_create_seq_data netfilter/x_tables: switch to proc_create_seq_private netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data neigh: switch to proc_create_seq_data hostap: switch to proc_create_{seq,single}_data bonding: switch to proc_create_seq_data rtc/proc: switch to proc_create_single_data drbd: switch to proc_create_single resource: switch to proc_create_seq_data staging/rtl8192u: simplify procfs code jfs: simplify procfs code ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/cgroup/cgroup-internal.h2
-rw-r--r--kernel/cgroup/cgroup-v1.c14
-rw-r--r--kernel/cgroup/cgroup.c2
-rw-r--r--kernel/dma.c14
-rw-r--r--kernel/exec_domain.c14
-rw-r--r--kernel/irq/proc.c82
-rw-r--r--kernel/locking/lockdep_proc.c45
-rw-r--r--kernel/resource.c43
-rw-r--r--kernel/sched/debug.c28
-rw-r--r--kernel/sched/stats.c15
-rw-r--r--kernel/time/timer_list.c16
11 files changed, 27 insertions, 248 deletions
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index b928b27050c6..0808a33d16d3 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -218,9 +218,9 @@ extern const struct proc_ns_operations cgroupns_operations;
* cgroup-v1.c
*/
extern struct cftype cgroup1_base_files[];
-extern const struct file_operations proc_cgroupstats_operations;
extern struct kernfs_syscall_ops cgroup1_kf_syscall_ops;
+int proc_cgroupstats_show(struct seq_file *m, void *v);
bool cgroup1_ssid_disabled(int ssid);
void cgroup1_pidlist_destroy_all(struct cgroup *cgrp);
void cgroup1_release_agent(struct work_struct *work);
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index a2c05d2476ac..e06c97f3ed1a 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -682,7 +682,7 @@ struct cftype cgroup1_base_files[] = {
};
/* Display information about each subsystem and each hierarchy */
-static int proc_cgroupstats_show(struct seq_file *m, void *v)
+int proc_cgroupstats_show(struct seq_file *m, void *v)
{
struct cgroup_subsys *ss;
int i;
@@ -705,18 +705,6 @@ static int proc_cgroupstats_show(struct seq_file *m, void *v)
return 0;
}
-static int cgroupstats_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_cgroupstats_show, NULL);
-}
-
-const struct file_operations proc_cgroupstats_operations = {
- .open = cgroupstats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
/**
* cgroupstats_build - build and fill cgroupstats
* @stats: cgroupstats to fill information into
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index a662bfcbea0e..12883656e63e 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5335,7 +5335,7 @@ int __init cgroup_init(void)
WARN_ON(sysfs_create_mount_point(fs_kobj, "cgroup"));
WARN_ON(register_filesystem(&cgroup_fs_type));
WARN_ON(register_filesystem(&cgroup2_fs_type));
- WARN_ON(!proc_create("cgroups", 0, NULL, &proc_cgroupstats_operations));
+ WARN_ON(!proc_create_single("cgroups", 0, NULL, proc_cgroupstats_show));
return 0;
}
diff --git a/kernel/dma.c b/kernel/dma.c
index 3506fc34a712..40f152936316 100644
--- a/kernel/dma.c
+++ b/kernel/dma.c
@@ -135,21 +135,9 @@ static int proc_dma_show(struct seq_file *m, void *v)
}
#endif /* MAX_DMA_CHANNELS */
-static int proc_dma_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_dma_show, NULL);
-}
-
-static const struct file_operations proc_dma_operations = {
- .open = proc_dma_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int __init proc_dma_init(void)
{
- proc_create("dma", 0, NULL, &proc_dma_operations);
+ proc_create_single("dma", 0, NULL, proc_dma_show);
return 0;
}
diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c
index a5697119290e..33f07c5f2515 100644
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -27,21 +27,9 @@ static int execdomains_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int execdomains_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, execdomains_proc_show, NULL);
-}
-
-static const struct file_operations execdomains_proc_fops = {
- .open = execdomains_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int __init proc_execdomains_init(void)
{
- proc_create("execdomains", 0, NULL, &execdomains_proc_fops);
+ proc_create_single("execdomains", 0, NULL, execdomains_proc_show);
return 0;
}
module_init(proc_execdomains_init);
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 7cb091d81d91..37eda10f5c36 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -185,11 +185,6 @@ static int irq_affinity_list_proc_open(struct inode *inode, struct file *file)
return single_open(file, irq_affinity_list_proc_show, PDE_DATA(inode));
}
-static int irq_affinity_hint_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, irq_affinity_hint_proc_show, PDE_DATA(inode));
-}
-
static const struct file_operations irq_affinity_proc_fops = {
.open = irq_affinity_proc_open,
.read = seq_read,
@@ -198,13 +193,6 @@ static const struct file_operations irq_affinity_proc_fops = {
.write = irq_affinity_proc_write,
};
-static const struct file_operations irq_affinity_hint_proc_fops = {
- .open = irq_affinity_hint_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static const struct file_operations irq_affinity_list_proc_fops = {
.open = irq_affinity_list_proc_open,
.read = seq_read,
@@ -223,32 +211,6 @@ static int irq_effective_aff_list_proc_show(struct seq_file *m, void *v)
{
return show_irq_affinity(EFFECTIVE_LIST, m);
}
-
-static int irq_effective_aff_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, irq_effective_aff_proc_show, PDE_DATA(inode));
-}
-
-static int irq_effective_aff_list_proc_open(struct inode *inode,
- struct file *file)
-{
- return single_open(file, irq_effective_aff_list_proc_show,
- PDE_DATA(inode));
-}
-
-static const struct file_operations irq_effective_aff_proc_fops = {
- .open = irq_effective_aff_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations irq_effective_aff_list_proc_fops = {
- .open = irq_effective_aff_list_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
static int default_affinity_show(struct seq_file *m, void *v)
@@ -313,18 +275,6 @@ static int irq_node_proc_show(struct seq_file *m, void *v)
seq_printf(m, "%d\n", irq_desc_get_node(desc));
return 0;
}
-
-static int irq_node_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, irq_node_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations irq_node_proc_fops = {
- .open = irq_node_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
static int irq_spurious_proc_show(struct seq_file *m, void *v)
@@ -337,18 +287,6 @@ static int irq_spurious_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int irq_spurious_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, irq_spurious_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations irq_spurious_proc_fops = {
- .open = irq_spurious_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
#define MAX_NAMELEN 128
static int name_unique(unsigned int irq, struct irqaction *new_action)
@@ -421,24 +359,24 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
&irq_affinity_proc_fops, irqp);
/* create /proc/irq/<irq>/affinity_hint */
- proc_create_data("affinity_hint", 0444, desc->dir,
- &irq_affinity_hint_proc_fops, irqp);
+ proc_create_single_data("affinity_hint", 0444, desc->dir,
+ irq_affinity_hint_proc_show, irqp);
/* create /proc/irq/<irq>/smp_affinity_list */
proc_create_data("smp_affinity_list", 0644, desc->dir,
&irq_affinity_list_proc_fops, irqp);
- proc_create_data("node", 0444, desc->dir,
- &irq_node_proc_fops, irqp);
+ proc_create_single_data("node", 0444, desc->dir, irq_node_proc_show,
+ irqp);
# ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
- proc_create_data("effective_affinity", 0444, desc->dir,
- &irq_effective_aff_proc_fops, irqp);
- proc_create_data("effective_affinity_list", 0444, desc->dir,
- &irq_effective_aff_list_proc_fops, irqp);
+ proc_create_single_data("effective_affinity", 0444, desc->dir,
+ irq_effective_aff_proc_show, irqp);
+ proc_create_single_data("effective_affinity_list", 0444, desc->dir,
+ irq_effective_aff_list_proc_show, irqp);
# endif
#endif
- proc_create_data("spurious", 0444, desc->dir,
- &irq_spurious_proc_fops, (void *)(long)irq);
+ proc_create_single_data("spurious", 0444, desc->dir,
+ irq_spurious_proc_show, (void *)(long)irq);
out_unlock:
mutex_unlock(&register_lock);
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
index ad69bbc9bd28..3dd980dfba2d 100644
--- a/kernel/locking/lockdep_proc.c
+++ b/kernel/locking/lockdep_proc.c
@@ -101,18 +101,6 @@ static const struct seq_operations lockdep_ops = {
.show = l_show,
};
-static int lockdep_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &lockdep_ops);
-}
-
-static const struct file_operations proc_lockdep_operations = {
- .open = lockdep_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
#ifdef CONFIG_PROVE_LOCKING
static void *lc_start(struct seq_file *m, loff_t *pos)
{
@@ -170,18 +158,6 @@ static const struct seq_operations lockdep_chains_ops = {
.stop = lc_stop,
.show = lc_show,
};
-
-static int lockdep_chains_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &lockdep_chains_ops);
-}
-
-static const struct file_operations proc_lockdep_chains_operations = {
- .open = lockdep_chains_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
#endif /* CONFIG_PROVE_LOCKING */
static void lockdep_stats_debug_show(struct seq_file *m)
@@ -355,18 +331,6 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
return 0;
}
-static int lockdep_stats_open(struct inode *inode, struct file *file)
-{
- return single_open(file, lockdep_stats_show, NULL);
-}
-
-static const struct file_operations proc_lockdep_stats_operations = {
- .open = lockdep_stats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
#ifdef CONFIG_LOCK_STAT
struct lock_stat_data {
@@ -682,14 +646,11 @@ static const struct file_operations proc_lock_stat_operations = {
static int __init lockdep_proc_init(void)
{
- proc_create("lockdep", S_IRUSR, NULL, &proc_lockdep_operations);
+ proc_create_seq("lockdep", S_IRUSR, NULL, &lockdep_ops);
#ifdef CONFIG_PROVE_LOCKING
- proc_create("lockdep_chains", S_IRUSR, NULL,
- &proc_lockdep_chains_operations);
+ proc_create_seq("lockdep_chains", S_IRUSR, NULL, &lockdep_chains_ops);
#endif
- proc_create("lockdep_stats", S_IRUSR, NULL,
- &proc_lockdep_stats_operations);
-
+ proc_create_single("lockdep_stats", S_IRUSR, NULL, lockdep_stats_show);
#ifdef CONFIG_LOCK_STAT
proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL,
&proc_lock_stat_operations);
diff --git a/kernel/resource.c b/kernel/resource.c
index 2af6c03858b9..b589dda910b3 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -87,7 +87,7 @@ enum { MAX_IORES_LEVEL = 5 };
static void *r_start(struct seq_file *m, loff_t *pos)
__acquires(resource_lock)
{
- struct resource *p = m->private;
+ struct resource *p = PDE_DATA(file_inode(m->file));
loff_t l = 0;
read_lock(&resource_lock);
for (p = p->child; p && l < *pos; p = r_next(m, p, &l))
@@ -103,7 +103,7 @@ static void r_stop(struct seq_file *m, void *v)
static int r_show(struct seq_file *m, void *v)
{
- struct resource *root = m->private;
+ struct resource *root = PDE_DATA(file_inode(m->file));
struct resource *r = v, *p;
unsigned long long start, end;
int width = root->end < 0x10000 ? 4 : 8;
@@ -135,44 +135,11 @@ static const struct seq_operations resource_op = {
.show = r_show,
};
-static int ioports_open(struct inode *inode, struct file *file)
-{
- int res = seq_open(file, &resource_op);
- if (!res) {
- struct seq_file *m = file->private_data;
- m->private = &ioport_resource;
- }
- return res;
-}
-
-static int iomem_open(struct inode *inode, struct file *file)
-{
- int res = seq_open(file, &resource_op);
- if (!res) {
- struct seq_file *m = file->private_data;
- m->private = &iomem_resource;
- }
- return res;
-}
-
-static const struct file_operations proc_ioports_operations = {
- .open = ioports_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static const struct file_operations proc_iomem_operations = {
- .open = iomem_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
static int __init ioresources_init(void)
{
- proc_create("ioports", 0, NULL, &proc_ioports_operations);
- proc_create("iomem", 0, NULL, &proc_iomem_operations);
+ proc_create_seq_data("ioports", 0, NULL, &resource_op,
+ &ioport_resource);
+ proc_create_seq_data("iomem", 0, NULL, &resource_op, &iomem_resource);
return 0;
}
__initcall(ioresources_init);
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 15b10e210a6b..e593b4118578 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -823,35 +823,9 @@ static const struct seq_operations sched_debug_sops = {
.show = sched_debug_show,
};
-static int sched_debug_release(struct inode *inode, struct file *file)
-{
- seq_release(inode, file);
-
- return 0;
-}
-
-static int sched_debug_open(struct inode *inode, struct file *filp)
-{
- int ret = 0;
-
- ret = seq_open(filp, &sched_debug_sops);
-
- return ret;
-}
-
-static const struct file_operations sched_debug_fops = {
- .open = sched_debug_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = sched_debug_release,
-};
-
static int __init init_sched_debug_procfs(void)
{
- struct proc_dir_entry *pe;
-
- pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
- if (!pe)
+ if (!proc_create_seq("sched_debug", 0444, NULL, &sched_debug_sops))
return -ENOMEM;
return 0;
}
diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c
index ab112cbfd7c8..750fb3c67eed 100644
--- a/kernel/sched/stats.c
+++ b/kernel/sched/stats.c
@@ -120,22 +120,9 @@ static const struct seq_operations schedstat_sops = {
.show = show_schedstat,
};
-static int schedstat_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &schedstat_sops);
-}
-
-static const struct file_operations proc_schedstat_operations = {
- .open = schedstat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
static int __init proc_schedstat_init(void)
{
- proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
-
+ proc_create_seq("schedstat", 0, NULL, &schedstat_sops);
return 0;
}
subsys_initcall(proc_schedstat_init);
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 0ed768b56c60..675c4e9563a9 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -372,24 +372,12 @@ static const struct seq_operations timer_list_sops = {
.show = timer_list_show,
};
-static int timer_list_open(struct inode *inode, struct file *filp)
-{
- return seq_open_private(filp, &timer_list_sops,
- sizeof(struct timer_list_iter));
-}
-
-static const struct file_operations timer_list_fops = {
- .open = timer_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
static int __init init_timer_list_procfs(void)
{
struct proc_dir_entry *pe;
- pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
+ pe = proc_create_seq_private("timer_list", 0400, NULL, &timer_list_sops,
+ sizeof(struct timer_list_iter), NULL);
if (!pe)
return -ENOMEM;
return 0;