void printhash(char *msg, unsigned char *bhash)
{
char *ascii_hash = NULL;
int n;
char *p1, *p2;
for (n = 0; n < config->hashlen ; n++) {
p1 = as_sprintf("%02X", bhash[n]);
if (n == 0) {
ascii_hash = s_strdup(p1);
} else {
p2 = s_strdup(ascii_hash);
free(ascii_hash);
ascii_hash = as_sprintf("%s%s", p2, p1);
free(p2);
}
free(p1);
}
printf("%s : %s\n", msg, ascii_hash);
free(ascii_hash);
}
int lost_mkdir(const char *path)
{
unsigned long long inode=0;
char *rdir;
char *pdir;
int res;
FUNC;
inode=get_next_inode();
write_file_ent(path, inode, S_IFDIR | 0755, NULL, 0);
rdir = as_sprintf("%s/.", path);
inode=get_next_inode();
write_file_ent(rdir, inode, S_IFDIR | 0755, NULL, 0);
free(rdir);
rdir = as_sprintf("%s/..", path);
inode=get_next_inode();
write_file_ent(rdir, inode, S_IFDIR | 0755, NULL, 0);
free(rdir);
/* Change ctime and mtime of the parentdir Posix std posix behavior */
pdir = s_dirname((char *) path);
res = update_parent_time(pdir,1);
free(pdir);
return (res);
}
static ssize_t tier_attr_migration_policy_show(struct tier_device *dev,
char *buf)
{
char *msg = NULL;
char *msg2;
int i;
int res;
for (i = 0; i < dev->attached_devices; i++) {
if (!msg) {
msg2 =
as_sprintf
("%7s %20s %15s %15s\n%7u %20s %15u %15u\n", "tier",
"device", "max_age", "hit_collecttime", i,
dev->backdev[i]->fds->f_dentry->d_name.name,
dev->backdev[i]->devmagic->dtapolicy.max_age,
dev->backdev[i]->devmagic->dtapolicy.
hit_collecttime);
} else {
msg2 =
as_sprintf("%s%7u %20s %15u %15u\n", msg,
i,
dev->backdev[i]->fds->f_dentry->
d_name.name,
dev->backdev[i]->devmagic->dtapolicy.
max_age,
dev->backdev[i]->devmagic->dtapolicy.
hit_collecttime);
}
kfree(msg);
msg = msg2;
}
res = sprintf(buf, "%s\n", msg);
kfree(msg);
return res;
}
static ssize_t tier_attr_device_usage_show(struct tier_device *dev, char *buf)
{
unsigned int i = 0;
int res = 0;
u64 allocated;
unsigned int lcount = dev->attached_devices + 1;
u64 devblocks;
const char **lines = NULL;
char *line;
char *msg;
lines = kzalloc(lcount * sizeof(char *), GFP_KERNEL);
if (!lines)
return -ENOMEM;
line =
as_sprintf("%7s %20s %15s %15s %15s %15s %15s %15s\n", "TIER",
"DEVICE", "SIZE MB", "ALLOCATED MB", "AVERAGE READS",
"AVERAGE WRITES", "TOTAL_READS", "TOTAL_WRITES");
if (!line) {
kfree(lines);
return -ENOMEM;
}
lines[0] = line;
for (i = 0; i < dev->attached_devices; i++) {
allocated = allocated_on_device(dev, i);
if (dev->inerror)
goto end_error;
allocated >>= BLKBITS;
devblocks =
(dev->backdev[i]->endofdata -
dev->backdev[i]->startofdata) >> BLKBITS;
dev->backdev[i]->devmagic->average_reads =
dev->backdev[i]->devmagic->total_reads / devblocks;
dev->backdev[i]->devmagic->average_writes =
dev->backdev[i]->devmagic->total_writes / devblocks;
line =
as_sprintf
("%7u %20s %15llu %15llu %15u %15u %15llu %15llu\n", i,
dev->backdev[i]->fds->f_dentry->d_name.name, devblocks,
allocated, dev->backdev[i]->devmagic->average_reads,
dev->backdev[i]->devmagic->average_writes,
dev->backdev[i]->devmagic->total_reads,
dev->backdev[i]->devmagic->total_writes);
lines[i + 1] = line;
}
msg = as_strarrcat(lines, i + 1);
if (!msg) {
res = -ENOMEM;
goto end_error;
}
while (i) {
kfree((char *)lines[--i]);
}
res = snprintf(buf, 1023, "%s\n", msg);
kfree(msg);
end_error:
kfree(lines);
kfree(line);
return res;
}
static ssize_t tier_attr_internals_show(struct tier_device *dev,
char *buf)
{
char *iotype;
char *iopending;
char *qlock;
char *aiowq;
char *discard;
#ifndef MAX_PERFORMANCE
char *debug_state;
#endif
int res = 0;
if (atomic_read(&dev->migrate) == MIGRATION_IO)
iotype = as_sprintf("iotype (normal or migration) : migration_io\n");
else if (atomic_read(&dev->wqlock))
iotype = as_sprintf("iotype (normal or migration) : normal_io\n");
else
iotype = as_sprintf("iotype (normal or migration) : no activity\n");
iopending = as_sprintf("async random ios pending : %i\n", atomic_read(&dev->aio_pending));
if ( mutex_is_locked(&dev->qlock))
qlock = as_sprintf("main mutex : locked\n");
else qlock = as_sprintf("main mutex : unlocked\n");
if (waitqueue_active(&dev->aio_event))
aiowq = as_sprintf("waiting on asynchrounous io : True\n");
else
aiowq = as_sprintf("waiting on asynchrounous io : False\n");
#ifndef MAX_PERFORMANCE
spin_lock(&dev->dbg_lock);
if (dev->debug_state & DISCARD)
discard = as_sprintf("discard request is pending : True\n");
else
discard = as_sprintf("discard request is pending : False\n");
debug_state = as_sprintf("debug state : %i\n", dev->debug_state);
spin_unlock(&dev->dbg_lock);
res = sprintf(buf, "%s%s%s%s%s%s", iotype, iopending, qlock, aiowq, discard, debug_state);
#else
res = sprintf(buf, "%s%s%s%s", iotype, iopending, qlock, aiowq);
#endif
kfree(iotype);
kfree(iopending);
kfree(qlock);
kfree(aiowq);
#ifndef MAX_PERFORMANCE
kfree(discard);
kfree(debug_state);
#endif
return res;
}
