Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-30 16:11:38 +00:00
Code Issues Packages Projects Releases Wiki Activity
cd2dca60be
linux/fs/orangefs/orangefs-sysfs.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

1243 lines
32 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Documentation/ABI/stable/orangefs-sysfs:
*
* What: /sys/fs/orangefs/perf_counter_reset
* Date: June 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* echo a 0 or a 1 into perf_counter_reset to
* reset all the counters in
* /sys/fs/orangefs/perf_counters
* except ones with PINT_PERF_PRESERVE set.
*
*
* What: /sys/fs/orangefs/perf_counters/...
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Counters and settings for various caches.
* Read only.
*
*
* What: /sys/fs/orangefs/perf_time_interval_secs
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Length of perf counter intervals in
* seconds.
*
*
* What: /sys/fs/orangefs/perf_history_size
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* The perf_counters cache statistics have N, or
* perf_history_size, samples. The default is
* one.
*
* Every perf_time_interval_secs the (first)
* samples are reset.
*
* If N is greater than one, the "current" set
* of samples is reset, and the samples from the
* other N-1 intervals remain available.
*
*
* What: /sys/fs/orangefs/op_timeout_secs
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Service operation timeout in seconds.
*
*
* What: /sys/fs/orangefs/slot_timeout_secs
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* "Slot" timeout in seconds. A "slot"
* is an indexed buffer in the shared
* memory segment used for communication
* between the kernel module and userspace.
* Slots are requested and waited for,
* the wait times out after slot_timeout_secs.
*
* What: /sys/fs/orangefs/dcache_timeout_msecs
* Date: Jul 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Time lookup is valid in milliseconds.
*
* What: /sys/fs/orangefs/getattr_timeout_msecs
* Date: Jul 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Time getattr is valid in milliseconds.
*
* What: /sys/fs/orangefs/readahead_count
* Date: Aug 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Readahead cache buffer count.
*
* What: /sys/fs/orangefs/readahead_size
* Date: Aug 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Readahead cache buffer size.
*
* What: /sys/fs/orangefs/readahead_count_size
* Date: Aug 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Readahead cache buffer count and size.
*
* What: /sys/fs/orangefs/readahead_readcnt
* Date: Jan 2017
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Number of buffers (in multiples of readahead_size)
* which can be read ahead for a single file at once.
*
* What: /sys/fs/orangefs/acache/...
* Date: Jun 2015
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Attribute cache configurable settings.
*
*
* What: /sys/fs/orangefs/ncache/...
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Name cache configurable settings.
*
*
* What: /sys/fs/orangefs/capcache/...
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Capability cache configurable settings.
*
*
* What: /sys/fs/orangefs/ccache/...
* Date: Jun 2015
* Contact: Mike Marshall <hubcap@omnibond.com>
* Description:
* Credential cache configurable settings.
*
*/
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/string.h>
#include <linux/sysfs.h>
#include <linux/module.h>
#include <linux/init.h>
#include "protocol.h"
#include "orangefs-kernel.h"
#include "orangefs-sysfs.h"
#define ORANGEFS_KOBJ_ID "orangefs"
#define ACACHE_KOBJ_ID "acache"
#define CAPCACHE_KOBJ_ID "capcache"
#define CCACHE_KOBJ_ID "ccache"
#define NCACHE_KOBJ_ID "ncache"
#define PC_KOBJ_ID "pc"
#define STATS_KOBJ_ID "stats"
/*
* Every item calls orangefs_attr_show and orangefs_attr_store through
* orangefs_sysfs_ops. They look at the orangefs_attributes further below to
* call one of sysfs_int_show, sysfs_int_store, sysfs_service_op_show, or
* sysfs_service_op_store.
*/
struct orangefs_attribute {
struct attribute attr;
ssize_t (*show)(struct kobject *kobj,
struct orangefs_attribute *attr,
char *buf);
ssize_t (*store)(struct kobject *kobj,
struct orangefs_attribute *attr,
const char *buf,
size_t count);
};
static ssize_t orangefs_attr_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct orangefs_attribute *attribute;
attribute = container_of(attr, struct orangefs_attribute, attr);
if (!attribute->show)
return -EIO;
return attribute->show(kobj, attribute, buf);
}
static ssize_t orangefs_attr_store(struct kobject *kobj,
struct attribute *attr,
const char *buf,
size_t len)
{
struct orangefs_attribute *attribute;
if (!strcmp(kobj->name, PC_KOBJ_ID) ||
!strcmp(kobj->name, STATS_KOBJ_ID))
return -EPERM;
attribute = container_of(attr, struct orangefs_attribute, attr);
if (!attribute->store)
return -EIO;
return attribute->store(kobj, attribute, buf, len);
}
static const struct sysfs_ops orangefs_sysfs_ops = {
.show = orangefs_attr_show,
.store = orangefs_attr_store,
};
static ssize_t sysfs_int_show(struct kobject *kobj,
struct orangefs_attribute *attr, char *buf)
{
int rc = -EIO;
gossip_debug(GOSSIP_SYSFS_DEBUG, "sysfs_int_show: id:%s:\n",
kobj->name);
if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "op_timeout_secs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
op_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name,
"slot_timeout_secs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name,
"dcache_timeout_msecs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
orangefs_dcache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name,
"getattr_timeout_msecs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
orangefs_getattr_timeout_msecs);
goto out;
} else {
goto out;
}
} else if (!strcmp(kobj->name, STATS_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "reads")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%lu\n",
orangefs_stats.reads);
goto out;
} else if (!strcmp(attr->attr.name, "writes")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%lu\n",
orangefs_stats.writes);
goto out;
} else {
goto out;
}
}
out:
return rc;
}
static ssize_t sysfs_int_store(struct kobject *kobj,
struct orangefs_attribute *attr, const char *buf, size_t count)
{
int rc = 0;
gossip_debug(GOSSIP_SYSFS_DEBUG,
"sysfs_int_store: start attr->attr.name:%s: buf:%s:\n",
attr->attr.name, buf);
if (!strcmp(attr->attr.name, "op_timeout_secs")) {
rc = kstrtoint(buf, 0, &op_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
rc = kstrtoint(buf, 0, &slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name, "dcache_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_dcache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name, "getattr_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_getattr_timeout_msecs);
goto out;
} else {
goto out;
}
out:
if (rc)
rc = -EINVAL;
else
rc = count;
return rc;
}
/*
* obtain attribute values from userspace with a service operation.
*/
static ssize_t sysfs_service_op_show(struct kobject *kobj,
struct orangefs_attribute *attr, char *buf)
{
struct orangefs_kernel_op_s *new_op = NULL;
int rc = 0;
char *ser_op_type = NULL;
__u32 op_alloc_type;
gossip_debug(GOSSIP_SYSFS_DEBUG,
"sysfs_service_op_show: id:%s:\n",
kobj->name);
if (strcmp(kobj->name, PC_KOBJ_ID))
op_alloc_type = ORANGEFS_VFS_OP_PARAM;
else
op_alloc_type = ORANGEFS_VFS_OP_PERF_COUNT;
new_op = op_alloc(op_alloc_type);
if (!new_op)
return -ENOMEM;
/* Can't do a service_operation if the client is not running... */
rc = is_daemon_in_service();
if (rc) {
pr_info("%s: Client not running :%d:\n",
__func__,
is_daemon_in_service());
goto out;
}
if (strcmp(kobj->name, PC_KOBJ_ID))
new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_GET;
if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
/* Drop unsupported requests first. */
if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
(!strcmp(attr->attr.name, "readahead_count") ||
!strcmp(attr->attr.name, "readahead_size") ||
!strcmp(attr->attr.name, "readahead_count_size") ||
!strcmp(attr->attr.name, "readahead_readcnt"))) {
rc = -EINVAL;
goto out;
}
if (!strcmp(attr->attr.name, "perf_history_size"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
else if (!strcmp(attr->attr.name,
"perf_time_interval_secs"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
else if (!strcmp(attr->attr.name,
"perf_counter_reset"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
else if (!strcmp(attr->attr.name,
"readahead_count"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
else if (!strcmp(attr->attr.name,
"readahead_size"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
else if (!strcmp(attr->attr.name,
"readahead_count_size"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
else if (!strcmp(attr->attr.name,
"readahead_readcnt"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT;
} else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "timeout_msecs"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
if (!strcmp(attr->attr.name, "hard_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
if (!strcmp(attr->attr.name, "soft_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
if (!strcmp(attr->attr.name, "reclaim_percentage"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
} else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "timeout_secs"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
if (!strcmp(attr->attr.name, "hard_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
if (!strcmp(attr->attr.name, "soft_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
if (!strcmp(attr->attr.name, "reclaim_percentage"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
} else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "timeout_secs"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
if (!strcmp(attr->attr.name, "hard_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
if (!strcmp(attr->attr.name, "soft_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
if (!strcmp(attr->attr.name, "reclaim_percentage"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
} else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "timeout_msecs"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
if (!strcmp(attr->attr.name, "hard_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
if (!strcmp(attr->attr.name, "soft_limit"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
if (!strcmp(attr->attr.name, "reclaim_percentage"))
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
} else if (!strcmp(kobj->name, PC_KOBJ_ID)) {
if (!strcmp(attr->attr.name, ACACHE_KOBJ_ID))
new_op->upcall.req.perf_count.type =
ORANGEFS_PERF_COUNT_REQUEST_ACACHE;
if (!strcmp(attr->attr.name, CAPCACHE_KOBJ_ID))
new_op->upcall.req.perf_count.type =
ORANGEFS_PERF_COUNT_REQUEST_CAPCACHE;
if (!strcmp(attr->attr.name, NCACHE_KOBJ_ID))
new_op->upcall.req.perf_count.type =
ORANGEFS_PERF_COUNT_REQUEST_NCACHE;
} else {
gossip_err("sysfs_service_op_show: unknown kobj_id:%s:\n",
kobj->name);
rc = -EINVAL;
goto out;
}
if (strcmp(kobj->name, PC_KOBJ_ID))
ser_op_type = "orangefs_param";
else
ser_op_type = "orangefs_perf_count";
/*
* The service_operation will return an errno return code on
* error, and zero on success.
*/
rc = service_operation(new_op, ser_op_type, ORANGEFS_OP_INTERRUPTIBLE);
out:
if (!rc) {
if (strcmp(kobj->name, PC_KOBJ_ID)) {
if (new_op->upcall.req.param.op ==
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE) {
rc = scnprintf(buf, PAGE_SIZE, "%d %d\n",
(int)new_op->downcall.resp.param.u.
value32[0],
(int)new_op->downcall.resp.param.u.
value32[1]);
} else {
rc = scnprintf(buf, PAGE_SIZE, "%d\n",
(int)new_op->downcall.resp.param.u.value64);
}
} else {
rc = scnprintf(
buf,
PAGE_SIZE,
"%s",
new_op->downcall.resp.perf_count.buffer);
}
}
op_release(new_op);
return rc;
}
/*
* pass attribute values back to userspace with a service operation.
*
* We have to do a memory allocation, an sscanf and a service operation.
* And we have to evaluate what the user entered, to make sure the
* value is within the range supported by the attribute. So, there's
* a lot of return code checking and mapping going on here.
*
* We want to return 1 if we think everything went OK, and
* EINVAL if not.
*/
static ssize_t sysfs_service_op_store(struct kobject *kobj,
struct orangefs_attribute *attr, const char *buf, size_t count)
{
struct orangefs_kernel_op_s *new_op = NULL;
int val = 0;
int rc = 0;
gossip_debug(GOSSIP_SYSFS_DEBUG,
"sysfs_service_op_store: id:%s:\n",
kobj->name);
new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
if (!new_op)
return -EINVAL; /* sic */
/* Can't do a service_operation if the client is not running... */
rc = is_daemon_in_service();
if (rc) {
pr_info("%s: Client not running :%d:\n",
__func__,
is_daemon_in_service());
goto out;
}
/*
* The value we want to send back to userspace is in buf, unless this
* there are two parameters, which is specially handled below.
*/
if (strcmp(kobj->name, ORANGEFS_KOBJ_ID) ||
strcmp(attr->attr.name, "readahead_count_size")) {
rc = kstrtoint(buf, 0, &val);
if (rc)
goto out;
}
new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
/* Drop unsupported requests first. */
if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
(!strcmp(attr->attr.name, "readahead_count") ||
!strcmp(attr->attr.name, "readahead_size") ||
!strcmp(attr->attr.name, "readahead_count_size") ||
!strcmp(attr->attr.name, "readahead_readcnt"))) {
rc = -EINVAL;
goto out;
}
if (!strcmp(attr->attr.name, "perf_history_size")) {
if (val > 0) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"perf_time_interval_secs")) {
if (val > 0) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"perf_counter_reset")) {
if ((val == 0) || (val == 1)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"readahead_count")) {
if ((val >= 0)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"readahead_size")) {
if ((val >= 0)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"readahead_count_size")) {
int val1, val2;
rc = sscanf(buf, "%d %d", &val1, &val2);
if (rc < 2) {
rc = 0;
goto out;
}
if ((val1 >= 0) && (val2 >= 0)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
} else {
rc = 0;
goto out;
}
new_op->upcall.req.param.u.value32[0] = val1;
new_op->upcall.req.param.u.value32[1] = val2;
goto value_set;
} else if (!strcmp(attr->attr.name,
"readahead_readcnt")) {
if ((val >= 0)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT;
} else {
rc = 0;
goto out;
}
}
} else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "hard_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "soft_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"reclaim_percentage")) {
if ((val > -1) && (val < 101)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "timeout_msecs")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
} else {
rc = 0;
goto out;
}
}
} else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "hard_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "soft_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"reclaim_percentage")) {
if ((val > -1) && (val < 101)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "timeout_secs")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
} else {
rc = 0;
goto out;
}
}
} else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "hard_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "soft_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"reclaim_percentage")) {
if ((val > -1) && (val < 101)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "timeout_secs")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
} else {
rc = 0;
goto out;
}
}
} else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
if (!strcmp(attr->attr.name, "hard_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "soft_limit")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name,
"reclaim_percentage")) {
if ((val > -1) && (val < 101)) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
} else {
rc = 0;
goto out;
}
} else if (!strcmp(attr->attr.name, "timeout_msecs")) {
if (val > -1) {
new_op->upcall.req.param.op =
ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
} else {
rc = 0;
goto out;
}
}
} else {
gossip_err("sysfs_service_op_store: unknown kobj_id:%s:\n",
kobj->name);
rc = -EINVAL;
goto out;
}
new_op->upcall.req.param.u.value64 = val;
value_set:
/*
* The service_operation will return a errno return code on
* error, and zero on success.
*/
rc = service_operation(new_op, "orangefs_param", ORANGEFS_OP_INTERRUPTIBLE);
if (rc < 0) {
gossip_err("sysfs_service_op_store: service op returned:%d:\n",
rc);
rc = 0;
} else {
rc = count;
}
out:
op_release(new_op);
if (rc == -ENOMEM || rc == 0)
rc = -EINVAL;
return rc;
}
static struct orangefs_attribute op_timeout_secs_attribute =
__ATTR(op_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute slot_timeout_secs_attribute =
__ATTR(slot_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute dcache_timeout_msecs_attribute =
__ATTR(dcache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute getattr_timeout_msecs_attribute =
__ATTR(getattr_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute readahead_count_attribute =
__ATTR(readahead_count, 0664, sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute readahead_size_attribute =
__ATTR(readahead_size, 0664, sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute readahead_count_size_attribute =
__ATTR(readahead_count_size, 0664, sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute readahead_readcnt_attribute =
__ATTR(readahead_readcnt, 0664, sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute perf_counter_reset_attribute =
__ATTR(perf_counter_reset,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute perf_history_size_attribute =
__ATTR(perf_history_size,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute perf_time_interval_secs_attribute =
__ATTR(perf_time_interval_secs,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct attribute *orangefs_default_attrs[] = {
&op_timeout_secs_attribute.attr,
&slot_timeout_secs_attribute.attr,
&dcache_timeout_msecs_attribute.attr,
&getattr_timeout_msecs_attribute.attr,
&readahead_count_attribute.attr,
&readahead_size_attribute.attr,
&readahead_count_size_attribute.attr,
&readahead_readcnt_attribute.attr,
&perf_counter_reset_attribute.attr,
&perf_history_size_attribute.attr,
&perf_time_interval_secs_attribute.attr,
NULL,
};
static struct kobj_type orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = orangefs_default_attrs,
};
static struct orangefs_attribute acache_hard_limit_attribute =
__ATTR(hard_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute acache_reclaim_percent_attribute =
__ATTR(reclaim_percentage,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute acache_soft_limit_attribute =
__ATTR(soft_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute acache_timeout_msecs_attribute =
__ATTR(timeout_msecs,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct attribute *acache_orangefs_default_attrs[] = {
&acache_hard_limit_attribute.attr,
&acache_reclaim_percent_attribute.attr,
&acache_soft_limit_attribute.attr,
&acache_timeout_msecs_attribute.attr,
NULL,
};
static struct kobj_type acache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = acache_orangefs_default_attrs,
};
static struct orangefs_attribute capcache_hard_limit_attribute =
__ATTR(hard_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute capcache_reclaim_percent_attribute =
__ATTR(reclaim_percentage,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute capcache_soft_limit_attribute =
__ATTR(soft_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute capcache_timeout_secs_attribute =
__ATTR(timeout_secs,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct attribute *capcache_orangefs_default_attrs[] = {
&capcache_hard_limit_attribute.attr,
&capcache_reclaim_percent_attribute.attr,
&capcache_soft_limit_attribute.attr,
&capcache_timeout_secs_attribute.attr,
NULL,
};
static struct kobj_type capcache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = capcache_orangefs_default_attrs,
};
static struct orangefs_attribute ccache_hard_limit_attribute =
__ATTR(hard_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ccache_reclaim_percent_attribute =
__ATTR(reclaim_percentage,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ccache_soft_limit_attribute =
__ATTR(soft_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ccache_timeout_secs_attribute =
__ATTR(timeout_secs,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct attribute *ccache_orangefs_default_attrs[] = {
&ccache_hard_limit_attribute.attr,
&ccache_reclaim_percent_attribute.attr,
&ccache_soft_limit_attribute.attr,
&ccache_timeout_secs_attribute.attr,
NULL,
};
static struct kobj_type ccache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = ccache_orangefs_default_attrs,
};
static struct orangefs_attribute ncache_hard_limit_attribute =
__ATTR(hard_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ncache_reclaim_percent_attribute =
__ATTR(reclaim_percentage,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ncache_soft_limit_attribute =
__ATTR(soft_limit,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct orangefs_attribute ncache_timeout_msecs_attribute =
__ATTR(timeout_msecs,
0664,
sysfs_service_op_show,
sysfs_service_op_store);
static struct attribute *ncache_orangefs_default_attrs[] = {
&ncache_hard_limit_attribute.attr,
&ncache_reclaim_percent_attribute.attr,
&ncache_soft_limit_attribute.attr,
&ncache_timeout_msecs_attribute.attr,
NULL,
};
static struct kobj_type ncache_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = ncache_orangefs_default_attrs,
};
static struct orangefs_attribute pc_acache_attribute =
__ATTR(acache,
0664,
sysfs_service_op_show,
NULL);
static struct orangefs_attribute pc_capcache_attribute =
__ATTR(capcache,
0664,
sysfs_service_op_show,
NULL);
static struct orangefs_attribute pc_ncache_attribute =
__ATTR(ncache,
0664,
sysfs_service_op_show,
NULL);
static struct attribute *pc_orangefs_default_attrs[] = {
&pc_acache_attribute.attr,
&pc_capcache_attribute.attr,
&pc_ncache_attribute.attr,
NULL,
};
static struct kobj_type pc_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = pc_orangefs_default_attrs,
};
static struct orangefs_attribute stats_reads_attribute =
__ATTR(reads,
0664,
sysfs_int_show,
NULL);
static struct orangefs_attribute stats_writes_attribute =
__ATTR(writes,
0664,
sysfs_int_show,
NULL);
static struct attribute *stats_orangefs_default_attrs[] = {
&stats_reads_attribute.attr,
&stats_writes_attribute.attr,
NULL,
};
static struct kobj_type stats_orangefs_ktype = {
.sysfs_ops = &orangefs_sysfs_ops,
.default_attrs = stats_orangefs_default_attrs,
};
static struct kobject *orangefs_obj;
static struct kobject *acache_orangefs_obj;
static struct kobject *capcache_orangefs_obj;
static struct kobject *ccache_orangefs_obj;
static struct kobject *ncache_orangefs_obj;
static struct kobject *pc_orangefs_obj;
static struct kobject *stats_orangefs_obj;
int orangefs_sysfs_init(void)
{
int rc = -EINVAL;
gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_init: start\n");
/* create /sys/fs/orangefs. */
orangefs_obj = kzalloc(sizeof(*orangefs_obj), GFP_KERNEL);
if (!orangefs_obj)
goto out;
rc = kobject_init_and_add(orangefs_obj,
&orangefs_ktype,
fs_kobj,
ORANGEFS_KOBJ_ID);
if (rc)
goto ofs_obj_bail;
kobject_uevent(orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/acache. */
acache_orangefs_obj = kzalloc(sizeof(*acache_orangefs_obj), GFP_KERNEL);
if (!acache_orangefs_obj) {
rc = -EINVAL;
goto ofs_obj_bail;
}
rc = kobject_init_and_add(acache_orangefs_obj,
&acache_orangefs_ktype,
orangefs_obj,
ACACHE_KOBJ_ID);
if (rc)
goto acache_obj_bail;
kobject_uevent(acache_orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/capcache. */
capcache_orangefs_obj =
kzalloc(sizeof(*capcache_orangefs_obj), GFP_KERNEL);
if (!capcache_orangefs_obj) {
rc = -EINVAL;
goto acache_obj_bail;
}
rc = kobject_init_and_add(capcache_orangefs_obj,
&capcache_orangefs_ktype,
orangefs_obj,
CAPCACHE_KOBJ_ID);
if (rc)
goto capcache_obj_bail;
kobject_uevent(capcache_orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/ccache. */
ccache_orangefs_obj =
kzalloc(sizeof(*ccache_orangefs_obj), GFP_KERNEL);
if (!ccache_orangefs_obj) {
rc = -EINVAL;
goto capcache_obj_bail;
}
rc = kobject_init_and_add(ccache_orangefs_obj,
&ccache_orangefs_ktype,
orangefs_obj,
CCACHE_KOBJ_ID);
if (rc)
goto ccache_obj_bail;
kobject_uevent(ccache_orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/ncache. */
ncache_orangefs_obj = kzalloc(sizeof(*ncache_orangefs_obj), GFP_KERNEL);
if (!ncache_orangefs_obj) {
rc = -EINVAL;
goto ccache_obj_bail;
}
rc = kobject_init_and_add(ncache_orangefs_obj,
&ncache_orangefs_ktype,
orangefs_obj,
NCACHE_KOBJ_ID);
if (rc)
goto ncache_obj_bail;
kobject_uevent(ncache_orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/perf_counters. */
pc_orangefs_obj = kzalloc(sizeof(*pc_orangefs_obj), GFP_KERNEL);
if (!pc_orangefs_obj) {
rc = -EINVAL;
goto ncache_obj_bail;
}
rc = kobject_init_and_add(pc_orangefs_obj,
&pc_orangefs_ktype,
orangefs_obj,
"perf_counters");
if (rc)
goto pc_obj_bail;
kobject_uevent(pc_orangefs_obj, KOBJ_ADD);
/* create /sys/fs/orangefs/stats. */
stats_orangefs_obj = kzalloc(sizeof(*stats_orangefs_obj), GFP_KERNEL);
if (!stats_orangefs_obj) {
rc = -EINVAL;
goto pc_obj_bail;
}
rc = kobject_init_and_add(stats_orangefs_obj,
&stats_orangefs_ktype,
orangefs_obj,
STATS_KOBJ_ID);
if (rc)
goto stats_obj_bail;
kobject_uevent(stats_orangefs_obj, KOBJ_ADD);
goto out;
stats_obj_bail:
kobject_put(stats_orangefs_obj);
pc_obj_bail:
kobject_put(pc_orangefs_obj);
ncache_obj_bail:
kobject_put(ncache_orangefs_obj);
ccache_obj_bail:
kobject_put(ccache_orangefs_obj);
capcache_obj_bail:
kobject_put(capcache_orangefs_obj);
acache_obj_bail:
kobject_put(acache_orangefs_obj);
ofs_obj_bail:
kobject_put(orangefs_obj);
out:
return rc;
}
void orangefs_sysfs_exit(void)
{
gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_exit: start\n");
kobject_put(acache_orangefs_obj);
kobject_put(capcache_orangefs_obj);
kobject_put(ccache_orangefs_obj);
kobject_put(ncache_orangefs_obj);
kobject_put(pc_orangefs_obj);
kobject_put(stats_orangefs_obj);
kobject_put(orangefs_obj);
}
Reference in New Issue View Git Blame Copy Permalink