#include <obd_support.h>
#include "llite_internal.h"
+#include "vvp_internal.h"
struct proc_dir_entry *proc_lustre_fs_root;
#ifdef LPROCFS
/* /proc/lustre/llite mount point registration */
-extern struct file_operations vvp_dump_pgcache_file_ops;
struct file_operations ll_rw_extents_stats_fops;
struct file_operations ll_rw_extents_stats_pp_fops;
struct file_operations ll_rw_offset_stats_fops;
int unused_mb;
max_cached_mb = cache->ccc_lru_max >> shift;
- unused_mb = cfs_atomic_read(&cache->ccc_lru_left) >> shift;
+ unused_mb = atomic_read(&cache->ccc_lru_left) >> shift;
return seq_printf(m,
"users: %d\n"
"max_cached_mb: %d\n"
"used_mb: %d\n"
"unused_mb: %d\n"
"reclaim_count: %u\n",
- cfs_atomic_read(&cache->ccc_users),
+ atomic_read(&cache->ccc_users),
max_cached_mb,
max_cached_mb - unused_mb,
unused_mb,
}
static ssize_t
-ll_max_cached_mb_seq_write(struct file *file, const char *buffer,
+ll_max_cached_mb_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
int mult, rc, pages_number;
int diff = 0;
int nrpages = 0;
+ char kernbuf[128];
ENTRY;
+ if (count >= sizeof(kernbuf))
+ RETURN(-EINVAL);
+
+ if (copy_from_user(kernbuf, buffer, count))
+ RETURN(-EFAULT);
+ kernbuf[count] = 0;
+
mult = 1 << (20 - PAGE_CACHE_SHIFT);
- buffer = lprocfs_find_named_value(buffer, "max_cached_mb:", &count);
+ buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) -
+ kernbuf;
rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
if (rc)
RETURN(rc);
/* easy - add more LRU slots. */
if (diff >= 0) {
- cfs_atomic_add(diff, &cache->ccc_lru_left);
+ atomic_add(diff, &cache->ccc_lru_left);
GOTO(out, rc = 0);
}
do {
int ov, nv;
- ov = cfs_atomic_read(&cache->ccc_lru_left);
+ ov = atomic_read(&cache->ccc_lru_left);
if (ov == 0)
break;
nv = ov > diff ? ov - diff : 0;
- rc = cfs_atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
+ rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
if (likely(ov == rc)) {
diff -= ov - nv;
nrpages += ov - nv;
spin_unlock(&sbi->ll_lock);
rc = count;
} else {
- cfs_atomic_add(nrpages, &cache->ccc_lru_left);
+ atomic_add(nrpages, &cache->ccc_lru_left);
}
return rc;
}
struct cl_client_cache *cache = &sbi->ll_cache;
int pages, mb;
- pages = cfs_atomic_read(&cache->ccc_unstable_nr);
+ pages = atomic_read(&cache->ccc_unstable_nr);
mb = (pages * PAGE_CACHE_SIZE) >> 20;
return seq_printf(m, "unstable_pages: %8d\n"
#define MAX_STRING_SIZE 128
-struct llite_file_opcode {
+static const struct llite_file_opcode {
__u32 opcode;
__u32 type;
const char *opname;
}
static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
- const char *buf, size_t len,
- loff_t *off)
+ const char __user *buf,
+ size_t len,
+ loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- int i;
- int value = 1, rc = 0;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+ int value = 1, rc = 0;
- rc = lprocfs_write_helper(buf, len, &value);
- if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
- strcmp(buf, "Disabled") == 0))
- value = 0;
+ if (len == 0)
+ return -EINVAL;
- if (value == 0)
- sbi->ll_rw_stats_on = 0;
- else
- sbi->ll_rw_stats_on = 1;
+ rc = lprocfs_write_helper(buf, len, &value);
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
spin_lock(&sbi->ll_pp_extent_lock);
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
return 0;
}
-static ssize_t ll_rw_extents_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+static ssize_t ll_rw_extents_stats_seq_write(struct file *file,
+ const char __user *buf,
+ size_t len, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- int i;
- int value = 1, rc = 0;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+ int value = 1, rc = 0;
- rc = lprocfs_write_helper(buf, len, &value);
- if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
- strcmp(buf, "Disabled") == 0))
- value = 0;
+ if (len == 0)
+ return -EINVAL;
+
+ rc = lprocfs_write_helper(buf, len, &value);
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
- if (value == 0)
- sbi->ll_rw_stats_on = 0;
- else
- sbi->ll_rw_stats_on = 1;
spin_lock(&sbi->ll_pp_extent_lock);
for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
io_extents->pp_extents[i].pid = 0;
return len;
}
-
LPROC_SEQ_FOPS(ll_rw_extents_stats);
void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
return 0;
}
-static ssize_t ll_rw_offset_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+static ssize_t ll_rw_offset_stats_seq_write(struct file *file,
+ const char __user *buf,
+ size_t len, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
- struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
- int value = 1, rc = 0;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
+ struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
+ int value = 1, rc = 0;
- rc = lprocfs_write_helper(buf, len, &value);
+ if (len == 0)
+ return -EINVAL;
- if (rc < 0 && (strcmp(buf, "disabled") == 0 ||
- strcmp(buf, "Disabled") == 0))
- value = 0;
+ rc = lprocfs_write_helper(buf, len, &value);
- if (value == 0)
- sbi->ll_rw_stats_on = 0;
- else
- sbi->ll_rw_stats_on = 1;
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
spin_lock(&sbi->ll_process_lock);
sbi->ll_offset_process_count = 0;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff