{
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ unsigned long ra_max_mb;
spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_ra_info.ra_max_pages;
+ ra_max_mb = PAGES_TO_MiB(sbi->ll_ra_info.ra_max_pages);
spin_unlock(&sbi->ll_lock);
- mult = 1 << (20 - PAGE_SHIFT);
- return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+ seq_printf(m, "%lu\n", ra_max_mb);
+ return 0;
}
static ssize_t
struct seq_file *m = file->private_data;
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- __s64 pages_number;
+ s64 ra_max_mb, pages_number;
int rc;
- rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M');
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &ra_max_mb, 'M');
if (rc)
return rc;
- pages_number >>= PAGE_SHIFT;
-
- if (pages_number < 0 || pages_number > totalram_pages / 2) {
+ pages_number = round_up(ra_max_mb, 1024 * 1024) >> PAGE_SHIFT;
+ if (pages_number < 0 || pages_number > cfs_totalram_pages() / 2) {
/* 1/2 of RAM */
- CERROR("%s: can't set max_readahead_mb=%lu > %luMB\n",
- ll_get_fsname(sb, NULL, 0),
- (unsigned long)pages_number >> (20 - PAGE_SHIFT),
- totalram_pages >> (20 - PAGE_SHIFT + 1));
+ CERROR("%s: can't set max_readahead_mb=%llu > %luMB\n",
+ sbi->ll_fsname, PAGES_TO_MiB(pages_number),
+ PAGES_TO_MiB(cfs_totalram_pages()));
return -ERANGE;
}
{
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ unsigned long ra_max_file_mb;
spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_ra_info.ra_max_pages_per_file;
+ ra_max_file_mb = PAGES_TO_MiB(sbi->ll_ra_info.ra_max_pages_per_file);
spin_unlock(&sbi->ll_lock);
- mult = 1 << (20 - PAGE_SHIFT);
- return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+ seq_printf(m, "%lu\n", ra_max_file_mb);
+ return 0;
}
static ssize_t
struct seq_file *m = file->private_data;
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
+ s64 ra_max_file_mb, pages_number;
int rc;
- __s64 pages_number;
- rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M');
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &ra_max_file_mb,
+ 'M');
if (rc)
return rc;
- pages_number >>= PAGE_SHIFT;
-
+ pages_number = round_up(ra_max_file_mb, 1024 * 1024) >> PAGE_SHIFT;
if (pages_number < 0 || pages_number > sbi->ll_ra_info.ra_max_pages) {
- CERROR("%s: can't set max_readahead_per_file_mb=%lu > "
- "max_read_ahead_mb=%lu\n", ll_get_fsname(sb, NULL, 0),
- (unsigned long)pages_number >> (20 - PAGE_SHIFT),
- sbi->ll_ra_info.ra_max_pages >> (20 - PAGE_SHIFT));
+ CERROR("%s: can't set max_readahead_per_file_mb=%llu > max_read_ahead_mb=%lu\n",
+ sbi->ll_fsname, PAGES_TO_MiB(pages_number),
+ PAGES_TO_MiB(sbi->ll_ra_info.ra_max_pages));
return -ERANGE;
}
{
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ unsigned long ra_max_whole_mb;
spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
+ ra_max_whole_mb = PAGES_TO_MiB(sbi->ll_ra_info.ra_max_read_ahead_whole_pages);
spin_unlock(&sbi->ll_lock);
- mult = 1 << (20 - PAGE_SHIFT);
- return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+ seq_printf(m, "%lu\n", ra_max_whole_mb);
+ return 0;
}
static ssize_t
struct seq_file *m = file->private_data;
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
+ s64 ra_max_whole_mb, pages_number;
int rc;
- __s64 pages_number;
- rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M');
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &ra_max_whole_mb,
+ 'M');
if (rc)
return rc;
- pages_number >>= PAGE_SHIFT;
-
+ pages_number = round_up(ra_max_whole_mb, 1024 * 1024) >> PAGE_SHIFT;
/* Cap this at the current max readahead window size, the readahead
- * algorithm does this anyway so it's pointless to set it larger. */
+ * algorithm does this anyway so it's pointless to set it larger.
+ */
if (pages_number < 0 ||
pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
- int pages_shift = 20 - PAGE_SHIFT;
- CERROR("%s: can't set max_read_ahead_whole_mb=%lu > "
- "max_read_ahead_per_file_mb=%lu\n",
- ll_get_fsname(sb, NULL, 0),
- (unsigned long)pages_number >> pages_shift,
- sbi->ll_ra_info.ra_max_pages_per_file >> pages_shift);
+ CERROR("%s: can't set max_read_ahead_whole_mb=%llu > max_read_ahead_per_file_mb=%lu\n",
+ sbi->ll_fsname, PAGES_TO_MiB(pages_number),
+ PAGES_TO_MiB(sbi->ll_ra_info.ra_max_pages_per_file));
return -ERANGE;
}
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct cl_client_cache *cache = sbi->ll_cache;
- int shift = 20 - PAGE_SHIFT;
long max_cached_mb;
long unused_mb;
- max_cached_mb = cache->ccc_lru_max >> shift;
- unused_mb = atomic_long_read(&cache->ccc_lru_left) >> shift;
+ max_cached_mb = PAGES_TO_MiB(cache->ccc_lru_max);
+ unused_mb = PAGES_TO_MiB(atomic_long_read(&cache->ccc_lru_left));
seq_printf(m, "users: %d\n"
"max_cached_mb: %ld\n"
"used_mb: %ld\n"
pages_number >>= PAGE_SHIFT;
- if (pages_number < 0 || pages_number > totalram_pages) {
+ if (pages_number < 0 || pages_number > cfs_totalram_pages()) {
CERROR("%s: can't set max cache more than %lu MB\n",
- ll_get_fsname(sb, NULL, 0),
- totalram_pages >> (20 - PAGE_SHIFT));
+ sbi->ll_fsname,
+ PAGES_TO_MiB(cfs_totalram_pages()));
RETURN(-ERANGE);
}
/* Allow enough cache so clients can make well-formed RPCs */
}
LUSTRE_RW_ATTR(lazystatfs);
+static ssize_t statfs_max_age_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", sbi->ll_statfs_max_age);
+}
+
+static ssize_t statfs_max_age_store(struct kobject *kobj,
+ struct attribute *attr, const char *buffer,
+ size_t count)
+{
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 10, &val);
+ if (rc)
+ return rc;
+ if (val > OBD_STATFS_CACHE_MAX_AGE)
+ return -EINVAL;
+
+ sbi->ll_statfs_max_age = val;
+
+ return count;
+}
+LUSTRE_RW_ATTR(statfs_max_age);
+
static ssize_t max_easize_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
if (rc)
return rc;
- return sprintf(buf, "%u\n", ealen);
+ /* Limit xattr size returned to userspace based on kernel maximum */
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ ealen > XATTR_SIZE_MAX ? XATTR_SIZE_MAX : ealen);
}
LUSTRE_RO_ATTR(max_easize);
if (rc)
return rc;
- return sprintf(buf, "%u\n", ealen);
+ /* Limit xattr size returned to userspace based on kernel maximum */
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ ealen > XATTR_SIZE_MAX ? XATTR_SIZE_MAX : ealen);
}
/**
while (flags != 0) {
if (ARRAY_SIZE(str) <= i) {
CERROR("%s: Revise array LL_SBI_FLAGS to match sbi "
- "flags please.\n", ll_get_fsname(sb, NULL, 0));
+ "flags please.\n", ll_s2sbi(sb)->ll_fsname);
return -EINVAL;
}
}
LUSTRE_RW_ATTR(tiny_write);
+static ssize_t max_read_ahead_async_active_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ sbi->ll_ra_info.ra_async_max_active);
+}
+
+static ssize_t max_read_ahead_async_active_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
+{
+ unsigned int val;
+ int rc;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+
+ rc = kstrtouint(buffer, 10, &val);
+ if (rc)
+ return rc;
+
+ if (val < 1 || val > WQ_UNBOUND_MAX_ACTIVE) {
+ CERROR("%s: cannot set max_read_ahead_async_active=%u %s than %u\n",
+ sbi->ll_fsname, val,
+ val < 1 ? "smaller" : "larger",
+ val < 1 ? 1 : WQ_UNBOUND_MAX_ACTIVE);
+ return -ERANGE;
+ }
+
+ sbi->ll_ra_info.ra_async_max_active = val;
+ workqueue_set_max_active(sbi->ll_ra_info.ll_readahead_wq, val);
+
+ return count;
+}
+LUSTRE_RW_ATTR(max_read_ahead_async_active);
+
+static ssize_t read_ahead_async_file_threshold_mb_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+
+ return snprintf(buf, PAGE_SIZE, "%lu\n",
+ PAGES_TO_MiB(sbi->ll_ra_info.ra_async_pages_per_file_threshold));
+}
+
+static ssize_t
+read_ahead_async_file_threshold_mb_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ unsigned long pages_number;
+ unsigned long max_ra_per_file;
+ struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
+ ll_kset.kobj);
+ int rc;
+
+ rc = kstrtoul(buffer, 10, &pages_number);
+ if (rc)
+ return rc;
+
+ pages_number = MiB_TO_PAGES(pages_number);
+ max_ra_per_file = sbi->ll_ra_info.ra_max_pages_per_file;
+ if (pages_number < 0 || pages_number > max_ra_per_file) {
+ CERROR("%s: can't set read_ahead_async_file_threshold_mb=%lu > "
+ "max_read_readahead_per_file_mb=%lu\n", sbi->ll_fsname,
+ PAGES_TO_MiB(pages_number),
+ PAGES_TO_MiB(max_ra_per_file));
+ return -ERANGE;
+ }
+ sbi->ll_ra_info.ra_async_pages_per_file_threshold = pages_number;
+
+ return count;
+}
+LUSTRE_RW_ATTR(read_ahead_async_file_threshold_mb);
+
static ssize_t fast_read_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct root_squash_info *squash = &sbi->ll_squash;
- return lprocfs_wr_root_squash(buffer, count, squash,
- ll_get_fsname(sb, NULL, 0));
+ return lprocfs_wr_root_squash(buffer, count, squash, sbi->ll_fsname);
}
LDEBUGFS_SEQ_FOPS(ll_root_squash);
struct root_squash_info *squash = &sbi->ll_squash;
int len;
- down_read(&squash->rsi_sem);
+ spin_lock(&squash->rsi_lock);
if (!list_empty(&squash->rsi_nosquash_nids)) {
len = cfs_print_nidlist(m->buf + m->count, m->size - m->count,
&squash->rsi_nosquash_nids);
} else {
seq_puts(m, "NONE\n");
}
- up_read(&squash->rsi_sem);
+ spin_unlock(&squash->rsi_lock);
return 0;
}
struct root_squash_info *squash = &sbi->ll_squash;
int rc;
- rc = lprocfs_wr_nosquash_nids(buffer, count, squash,
- ll_get_fsname(sb, NULL, 0));
+ rc = lprocfs_wr_nosquash_nids(buffer, count, squash, sbi->ll_fsname);
if (rc < 0)
return rc;
LDEBUGFS_SEQ_FOPS(ll_nosquash_nids);
+static int ll_pcc_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return pcc_super_dump(&sbi->ll_pcc_super, m);
+}
+
+static ssize_t ll_pcc_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int rc;
+ char *kernbuf;
+
+ if (count >= LPROCFS_WR_PCC_MAX_CMD)
+ return -EINVAL;
+
+ if (!(exp_connect_flags2(sbi->ll_md_exp) & OBD_CONNECT2_PCC))
+ return -EOPNOTSUPP;
+
+ OBD_ALLOC(kernbuf, count + 1);
+ if (kernbuf == NULL)
+ return -ENOMEM;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ GOTO(out_free_kernbuff, rc = -EFAULT);
+
+ rc = pcc_cmd_handle(kernbuf, count, &sbi->ll_pcc_super);
+out_free_kernbuff:
+ OBD_FREE(kernbuf, count + 1);
+ return rc ? rc : count;
+}
+LPROC_SEQ_FOPS(ll_pcc);
+
struct lprocfs_vars lprocfs_llite_obd_vars[] = {
{ .name = "site",
.fops = &ll_site_stats_fops },
.fops = &ll_root_squash_fops },
{ .name = "nosquash_nids",
.fops = &ll_nosquash_nids_fops },
+ { .name = "pcc",
+ .fops = &ll_pcc_fops, },
{ NULL }
};
&lustre_attr_statahead_max.attr,
&lustre_attr_statahead_agl.attr,
&lustre_attr_lazystatfs.attr,
+ &lustre_attr_statfs_max_age.attr,
&lustre_attr_max_easize.attr,
&lustre_attr_default_easize.attr,
&lustre_attr_xattr_cache.attr,
&lustre_attr_file_heat.attr,
&lustre_attr_heat_decay_percentage.attr,
&lustre_attr_heat_period_second.attr,
+ &lustre_attr_max_read_ahead_async_active.attr,
+ &lustre_attr_read_ahead_async_file_threshold_mb.attr,
NULL,
};
const char *opname;
} llite_opcode_table[LPROC_LL_FILE_OPCODES] = {
/* file operation */
- { LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" },
- { LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" },
{ LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
"read_bytes" },
{ LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
"write_bytes" },
- { LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "brw_read" },
- { LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "brw_write" },
{ LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" },
{ LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" },
{ LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" },
{ LPROC_LL_RMDIR, LPROCFS_TYPE_REGS, "rmdir" },
{ LPROC_LL_MKNOD, LPROCFS_TYPE_REGS, "mknod" },
{ LPROC_LL_RENAME, LPROCFS_TYPE_REGS, "rename" },
- /* special inode operation */
- { LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" },
- { LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
- { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
- { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
+ /* special inode operation */
+ { LPROC_LL_STATFS, LPROCFS_TYPE_REGS, "statfs" },
+ { LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
+ { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
+ { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
{ LPROC_LL_GETXATTR_HITS, LPROCFS_TYPE_REGS, "getxattr_hits" },
- { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
- { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
- { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
+ { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
+ { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
+ { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
};
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
[RA_STAT_EOF] = "read-ahead to EOF",
[RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
[RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
- [RA_STAT_FAILED_REACH_END] = "failed to reach end"
+ [RA_STAT_FAILED_REACH_END] = "failed to reach end",
+ [RA_STAT_ASYNC] = "async readahead",
+ [RA_STAT_FAILED_FAST_READ] = "failed to fast read",
};
int ll_debugfs_register_super(struct super_block *sb, const char *name)
lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
}
- for(i = 0; (count >= BIT(LL_HIST_START << i)) &&
- (i < (LL_HIST_MAX - 1)); i++);
- if (rw == 0) {
- io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
- io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
- } else {
- io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
- io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
- }
+ for (i = 0; (count >= BIT(LL_HIST_START + i)) &&
+ (i < (LL_HIST_MAX - 1)); i++);
+ if (rw == 0) {
+ io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
+ io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
+ } else {
+ io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
+ io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
+ }
spin_unlock(&sbi->ll_pp_extent_lock);
spin_lock(&sbi->ll_process_lock);
for (i = 0; i < LL_OFFSET_HIST_MAX; i++) {
if (offset[i].rw_pid != 0)
seq_printf(seq,
- "%3c %10d %14llu %14llu %17lu %17lu %14llu\n",
+ "%3c %10d %14llu %14llu %17lu %17lu %14lld\n",
offset[i].rw_op == READ ? 'R' : 'W',
offset[i].rw_pid,
offset[i].rw_range_start,
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
if (process[i].rw_pid != 0)
seq_printf(seq,
- "%3c %10d %14llu %14llu %17lu %17lu %14llu\n",
+ "%3c %10d %14llu %14llu %17lu %17lu %14lld\n",
process[i].rw_op == READ ? 'R' : 'W',
process[i].rw_pid,
process[i].rw_range_start,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff