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-rw-r--r--fs/proc/proc_misc.c116
1 files changed, 57 insertions, 59 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 29e20c6b1f7..61b25f4eabe 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -45,7 +45,6 @@
45#include <linux/blkdev.h> 45#include <linux/blkdev.h>
46#include <linux/hugetlb.h> 46#include <linux/hugetlb.h>
47#include <linux/jiffies.h> 47#include <linux/jiffies.h>
48#include <linux/sysrq.h>
49#include <linux/vmalloc.h> 48#include <linux/vmalloc.h>
50#include <linux/crash_dump.h> 49#include <linux/crash_dump.h>
51#include <linux/pid_namespace.h> 50#include <linux/pid_namespace.h>
@@ -68,7 +67,6 @@
68extern int get_hardware_list(char *); 67extern int get_hardware_list(char *);
69extern int get_stram_list(char *); 68extern int get_stram_list(char *);
70extern int get_exec_domain_list(char *); 69extern int get_exec_domain_list(char *);
71extern int get_dma_list(char *);
72 70
73static int proc_calc_metrics(char *page, char **start, off_t off, 71static int proc_calc_metrics(char *page, char **start, off_t off,
74 int count, int *eof, int len) 72 int count, int *eof, int len)
@@ -138,6 +136,8 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
138 unsigned long allowed; 136 unsigned long allowed;
139 struct vmalloc_info vmi; 137 struct vmalloc_info vmi;
140 long cached; 138 long cached;
139 unsigned long pages[NR_LRU_LISTS];
140 int lru;
141 141
142/* 142/*
143 * display in kilobytes. 143 * display in kilobytes.
@@ -156,51 +156,70 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
156 156
157 get_vmalloc_info(&vmi); 157 get_vmalloc_info(&vmi);
158 158
159 for (lru = LRU_BASE; lru < NR_LRU_LISTS; lru++)
160 pages[lru] = global_page_state(NR_LRU_BASE + lru);
161
159 /* 162 /*
160 * Tagged format, for easy grepping and expansion. 163 * Tagged format, for easy grepping and expansion.
161 */ 164 */
162 len = sprintf(page, 165 len = sprintf(page,
163 "MemTotal: %8lu kB\n" 166 "MemTotal: %8lu kB\n"
164 "MemFree: %8lu kB\n" 167 "MemFree: %8lu kB\n"
165 "Buffers: %8lu kB\n" 168 "Buffers: %8lu kB\n"
166 "Cached: %8lu kB\n" 169 "Cached: %8lu kB\n"
167 "SwapCached: %8lu kB\n" 170 "SwapCached: %8lu kB\n"
168 "Active: %8lu kB\n" 171 "Active: %8lu kB\n"
169 "Inactive: %8lu kB\n" 172 "Inactive: %8lu kB\n"
173 "Active(anon): %8lu kB\n"
174 "Inactive(anon): %8lu kB\n"
175 "Active(file): %8lu kB\n"
176 "Inactive(file): %8lu kB\n"
177#ifdef CONFIG_UNEVICTABLE_LRU
178 "Unevictable: %8lu kB\n"
179 "Mlocked: %8lu kB\n"
180#endif
170#ifdef CONFIG_HIGHMEM 181#ifdef CONFIG_HIGHMEM
171 "HighTotal: %8lu kB\n" 182 "HighTotal: %8lu kB\n"
172 "HighFree: %8lu kB\n" 183 "HighFree: %8lu kB\n"
173 "LowTotal: %8lu kB\n" 184 "LowTotal: %8lu kB\n"
174 "LowFree: %8lu kB\n" 185 "LowFree: %8lu kB\n"
175#endif 186#endif
176 "SwapTotal: %8lu kB\n" 187 "SwapTotal: %8lu kB\n"
177 "SwapFree: %8lu kB\n" 188 "SwapFree: %8lu kB\n"
178 "Dirty: %8lu kB\n" 189 "Dirty: %8lu kB\n"
179 "Writeback: %8lu kB\n" 190 "Writeback: %8lu kB\n"
180 "AnonPages: %8lu kB\n" 191 "AnonPages: %8lu kB\n"
181 "Mapped: %8lu kB\n" 192 "Mapped: %8lu kB\n"
182 "Slab: %8lu kB\n" 193 "Slab: %8lu kB\n"
183 "SReclaimable: %8lu kB\n" 194 "SReclaimable: %8lu kB\n"
184 "SUnreclaim: %8lu kB\n" 195 "SUnreclaim: %8lu kB\n"
185 "PageTables: %8lu kB\n" 196 "PageTables: %8lu kB\n"
186#ifdef CONFIG_QUICKLIST 197#ifdef CONFIG_QUICKLIST
187 "Quicklists: %8lu kB\n" 198 "Quicklists: %8lu kB\n"
188#endif 199#endif
189 "NFS_Unstable: %8lu kB\n" 200 "NFS_Unstable: %8lu kB\n"
190 "Bounce: %8lu kB\n" 201 "Bounce: %8lu kB\n"
191 "WritebackTmp: %8lu kB\n" 202 "WritebackTmp: %8lu kB\n"
192 "CommitLimit: %8lu kB\n" 203 "CommitLimit: %8lu kB\n"
193 "Committed_AS: %8lu kB\n" 204 "Committed_AS: %8lu kB\n"
194 "VmallocTotal: %8lu kB\n" 205 "VmallocTotal: %8lu kB\n"
195 "VmallocUsed: %8lu kB\n" 206 "VmallocUsed: %8lu kB\n"
196 "VmallocChunk: %8lu kB\n", 207 "VmallocChunk: %8lu kB\n",
197 K(i.totalram), 208 K(i.totalram),
198 K(i.freeram), 209 K(i.freeram),
199 K(i.bufferram), 210 K(i.bufferram),
200 K(cached), 211 K(cached),
201 K(total_swapcache_pages), 212 K(total_swapcache_pages),
202 K(global_page_state(NR_ACTIVE)), 213 K(pages[LRU_ACTIVE_ANON] + pages[LRU_ACTIVE_FILE]),
203 K(global_page_state(NR_INACTIVE)), 214 K(pages[LRU_INACTIVE_ANON] + pages[LRU_INACTIVE_FILE]),
215 K(pages[LRU_ACTIVE_ANON]),
216 K(pages[LRU_INACTIVE_ANON]),
217 K(pages[LRU_ACTIVE_FILE]),
218 K(pages[LRU_INACTIVE_FILE]),
219#ifdef CONFIG_UNEVICTABLE_LRU
220 K(pages[LRU_UNEVICTABLE]),
221 K(global_page_state(NR_MLOCK)),
222#endif
204#ifdef CONFIG_HIGHMEM 223#ifdef CONFIG_HIGHMEM
205 K(i.totalhigh), 224 K(i.totalhigh),
206 K(i.freehigh), 225 K(i.freehigh),
@@ -684,6 +703,7 @@ static int cmdline_read_proc(char *page, char **start, off_t off,
684 return proc_calc_metrics(page, start, off, count, eof, len); 703 return proc_calc_metrics(page, start, off, count, eof, len);
685} 704}
686 705
706#ifdef CONFIG_FILE_LOCKING
687static int locks_open(struct inode *inode, struct file *filp) 707static int locks_open(struct inode *inode, struct file *filp)
688{ 708{
689 return seq_open(filp, &locks_seq_operations); 709 return seq_open(filp, &locks_seq_operations);
@@ -695,6 +715,7 @@ static const struct file_operations proc_locks_operations = {
695 .llseek = seq_lseek, 715 .llseek = seq_lseek,
696 .release = seq_release, 716 .release = seq_release,
697}; 717};
718#endif /* CONFIG_FILE_LOCKING */
698 719
699static int execdomains_read_proc(char *page, char **start, off_t off, 720static int execdomains_read_proc(char *page, char **start, off_t off,
700 int count, int *eof, void *data) 721 int count, int *eof, void *data)
@@ -703,28 +724,6 @@ static int execdomains_read_proc(char *page, char **start, off_t off,
703 return proc_calc_metrics(page, start, off, count, eof, len); 724 return proc_calc_metrics(page, start, off, count, eof, len);
704} 725}
705 726
706#ifdef CONFIG_MAGIC_SYSRQ
707/*
708 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
709 */
710static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
711 size_t count, loff_t *ppos)
712{
713 if (count) {
714 char c;
715
716 if (get_user(c, buf))
717 return -EFAULT;
718 __handle_sysrq(c, NULL, 0);
719 }
720 return count;
721}
722
723static const struct file_operations proc_sysrq_trigger_operations = {
724 .write = write_sysrq_trigger,
725};
726#endif
727
728#ifdef CONFIG_PROC_PAGE_MONITOR 727#ifdef CONFIG_PROC_PAGE_MONITOR
729#define KPMSIZE sizeof(u64) 728#define KPMSIZE sizeof(u64)
730#define KPMMASK (KPMSIZE - 1) 729#define KPMMASK (KPMSIZE - 1)
@@ -888,7 +887,9 @@ void __init proc_misc_init(void)
888#ifdef CONFIG_PRINTK 887#ifdef CONFIG_PRINTK
889 proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations); 888 proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations);
890#endif 889#endif
890#ifdef CONFIG_FILE_LOCKING
891 proc_create("locks", 0, NULL, &proc_locks_operations); 891 proc_create("locks", 0, NULL, &proc_locks_operations);
892#endif
892 proc_create("devices", 0, NULL, &proc_devinfo_operations); 893 proc_create("devices", 0, NULL, &proc_devinfo_operations);
893 proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations); 894 proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
894#ifdef CONFIG_BLOCK 895#ifdef CONFIG_BLOCK
@@ -931,7 +932,4 @@ void __init proc_misc_init(void)
931#ifdef CONFIG_PROC_VMCORE 932#ifdef CONFIG_PROC_VMCORE
932 proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations); 933 proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
933#endif 934#endif
934#ifdef CONFIG_MAGIC_SYSRQ
935 proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations);
936#endif
937} 935}
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-27 08:46:58 -0400