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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 17:51:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 17:51:54 -0700
commit20b4fb485227404329e41ad15588afad3df23050 (patch)
treef3e099f0ab3da8a93b447203e294d2bb22f6dc05 /arch/cris/arch-v10
parentb9394d8a657cd3c064fa432aa0905c1b58b38fe9 (diff)
parentac3e3c5b1164397656df81b9e9ab4991184d3236 (diff)
downloadlinux-20b4fb485227404329e41ad15588afad3df23050.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
Diffstat (limited to 'arch/cris/arch-v10')
-rw-r--r--arch/cris/arch-v10/kernel/fasttimer.c301
1 files changed, 133 insertions, 168 deletions
diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c
index 082f1890bac..ce6f512968a 100644
--- a/arch/cris/arch-v10/kernel/fasttimer.c
+++ b/arch/cris/arch-v10/kernel/fasttimer.c
@@ -25,6 +25,7 @@
#include <arch/svinto.h>
#include <asm/fasttimer.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#define DEBUG_LOG_INCLUDED
@@ -489,197 +490,162 @@ void schedule_usleep(unsigned long us)
}
#ifdef CONFIG_PROC_FS
-static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
- ,int *eof, void *data_unused);
-static struct proc_dir_entry *fasttimer_proc_entry;
-#endif /* CONFIG_PROC_FS */
-
-#ifdef CONFIG_PROC_FS
-
/* This value is very much based on testing */
#define BIG_BUF_SIZE (500 + NUM_TIMER_STATS * 300)
-static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
- ,int *eof, void *data_unused)
+static int proc_fasttimer_show(struct seq_file *m, void *v)
{
- unsigned long flags;
- int i = 0;
- int num_to_show;
+ unsigned long flags;
+ int i = 0;
+ int num_to_show;
struct fasttime_t tv;
- struct fast_timer *t, *nextt;
- static char *bigbuf = NULL;
- static unsigned long used;
-
- if (!bigbuf && !(bigbuf = vmalloc(BIG_BUF_SIZE)))
- {
- used = 0;
- if (buf)
- buf[0] = '\0';
- return 0;
- }
-
- if (!offset || !used)
- {
- do_gettimeofday_fast(&tv);
-
- used = 0;
- used += sprintf(bigbuf + used, "Fast timers added: %i\n",
- fast_timers_added);
- used += sprintf(bigbuf + used, "Fast timers started: %i\n",
- fast_timers_started);
- used += sprintf(bigbuf + used, "Fast timer interrupts: %i\n",
- fast_timer_ints);
- used += sprintf(bigbuf + used, "Fast timers expired: %i\n",
- fast_timers_expired);
- used += sprintf(bigbuf + used, "Fast timers deleted: %i\n",
- fast_timers_deleted);
- used += sprintf(bigbuf + used, "Fast timer running: %s\n",
- fast_timer_running ? "yes" : "no");
- used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n",
- (unsigned long)tv.tv_jiff,
- (unsigned long)tv.tv_usec);
+ struct fast_timer *t, *nextt;
+
+ do_gettimeofday_fast(&tv);
+
+ seq_printf(m, "Fast timers added: %i\n", fast_timers_added);
+ seq_printf(m, "Fast timers started: %i\n", fast_timers_started);
+ seq_printf(m, "Fast timer interrupts: %i\n", fast_timer_ints);
+ seq_printf(m, "Fast timers expired: %i\n", fast_timers_expired);
+ seq_printf(m, "Fast timers deleted: %i\n", fast_timers_deleted);
+ seq_printf(m, "Fast timer running: %s\n",
+ fast_timer_running ? "yes" : "no");
+ seq_printf(m, "Current time: %lu.%06lu\n",
+ (unsigned long)tv.tv_jiff,
+ (unsigned long)tv.tv_usec);
#ifdef FAST_TIMER_SANITY_CHECKS
- used += sprintf(bigbuf + used, "Sanity failed: %i\n",
- sanity_failed);
+ seq_printf(m, "Sanity failed: %i\n", sanity_failed);
#endif
- used += sprintf(bigbuf + used, "\n");
+ seq_putc(m, '\n');
#ifdef DEBUG_LOG_INCLUDED
- {
- int end_i = debug_log_cnt;
- i = 0;
-
- if (debug_log_cnt_wrapped)
- {
- i = debug_log_cnt;
- }
-
- while ((i != end_i || (debug_log_cnt_wrapped && !used)) &&
- used+100 < BIG_BUF_SIZE)
- {
- used += sprintf(bigbuf + used, debug_log_string[i],
- debug_log_value[i]);
- i = (i+1) % DEBUG_LOG_MAX;
- }
- }
- used += sprintf(bigbuf + used, "\n");
+ {
+ int end_i = debug_log_cnt;
+ i = 0;
+
+ if (debug_log_cnt_wrapped)
+ i = debug_log_cnt;
+
+ while (i != end_i || debug_log_cnt_wrapped) {
+ if (seq_printf(m, debug_log_string[i], debug_log_value[i]) < 0)
+ return 0;
+ i = (i+1) % DEBUG_LOG_MAX;
+ }
+ }
+ seq_putc(m, '\n');
#endif
- num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers started: %i\n", fast_timers_started);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE) ; i++)
- {
- int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS;
+ num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers started: %i\n", fast_timers_started);
+ for (i = 0; i < num_to_show; i++) {
+ int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS;
#if 1 //ndef FAST_TIMER_LOG
- used += sprintf(bigbuf + used, "div: %i freq: %i delay: %i"
- "\n",
- timer_div_settings[cur],
- timer_freq_settings[cur],
- timer_delay_settings[cur]
- );
+ seq_printf(m, "div: %i freq: %i delay: %i"
+ "\n",
+ timer_div_settings[cur],
+ timer_freq_settings[cur],
+ timer_delay_settings[cur]);
#endif
#ifdef FAST_TIMER_LOG
- t = &timer_started_log[cur];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
+ t = &timer_started_log[cur];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
#endif
- }
- used += sprintf(bigbuf + used, "\n");
+ }
+ seq_putc(m, '\n');
#ifdef FAST_TIMER_LOG
- num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers added: %i\n", fast_timers_added);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++)
- {
- t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
- }
- used += sprintf(bigbuf + used, "\n");
-
- num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers expired: %i\n", fast_timers_expired);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++)
- {
- t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
- }
- used += sprintf(bigbuf + used, "\n");
+ num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers added: %i\n", fast_timers_added);
+ for (i = 0; i < num_to_show; i++) {
+ t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
+ }
+ seq_putc(m, '\n');
+
+ num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers expired: %i\n", fast_timers_expired);
+ for (i = 0; i < num_to_show; i++) {
+ t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
+ }
+ seq_putc(m, '\n');
#endif
- used += sprintf(bigbuf + used, "Active timers:\n");
- local_irq_save(flags);
- t = fast_timer_list;
- while (t != NULL && (used+100 < BIG_BUF_SIZE))
- {
- nextt = t->next;
- local_irq_restore(flags);
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
+ seq_puts(m, "Active timers:\n");
+ local_irq_save(flags);
+ t = fast_timer_list;
+ while (t) {
+ nextt = t->next;
+ local_irq_restore(flags);
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
/* " func: 0x%08lX" */
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
/* , t->function */
- );
- local_irq_save(flags);
- if (t->next != nextt)
- {
- printk(KERN_WARNING "timer removed!\n");
- }
- t = nextt;
- }
- local_irq_restore(flags);
- }
-
- if (used - offset < len)
- {
- len = used - offset;
- }
+ ) < 0)
+ return 0;
+ local_irq_save(flags);
+ if (t->next != nextt)
+ printk(KERN_WARNING "timer removed!\n");
+ t = nextt;
+ }
+ local_irq_restore(flags);
- memcpy(buf, bigbuf + offset, len);
- *start = buf;
- *eof = 1;
+ return 0;
+}
- return len;
+static int proc_fasttimer_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, proc_fasttimer_show, PDE_DATA(inode), BIG_BUF_SIZE);
}
+
+static const struct file_operations proc_fasttimer_fops = {
+ .open = proc_fasttimer_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
#endif /* PROC_FS */
#ifdef FAST_TIMER_TEST
@@ -857,8 +823,7 @@ int fast_timer_init(void)
}
#endif
#ifdef CONFIG_PROC_FS
- if ((fasttimer_proc_entry = create_proc_entry( "fasttimer", 0, 0 )))
- fasttimer_proc_entry->read_proc = proc_fasttimer_read;
+ proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops);
#endif /* PROC_FS */
if(request_irq(TIMER1_IRQ_NBR, timer1_handler, 0,
"fast timer int", NULL))