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>
2017-11-01 14:07:57 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2015-07-17 14:38:12 +00:00
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/*
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* (C) 2001 Clemson University and The University of Chicago
|
2018-02-22 18:10:43 +00:00
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* Copyright 2018 Omnibond Systems, L.L.C.
|
2015-07-17 14:38:12 +00:00
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*
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* See COPYING in top-level directory.
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|
*/
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|
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|
|
/*
|
|
|
|
* Linux VFS file operations.
|
|
|
|
*/
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|
|
|
|
#include "protocol.h"
|
2015-12-04 17:56:14 +00:00
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|
|
#include "orangefs-kernel.h"
|
|
|
|
#include "orangefs-bufmap.h"
|
2015-07-17 14:38:12 +00:00
|
|
|
#include <linux/fs.h>
|
|
|
|
#include <linux/pagemap.h>
|
|
|
|
|
2016-08-02 20:32:15 +00:00
|
|
|
static int flush_racache(struct inode *inode)
|
|
|
|
{
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|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
|
|
struct orangefs_kernel_op_s *new_op;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
gossip_debug(GOSSIP_UTILS_DEBUG,
|
|
|
|
"%s: %pU: Handle is %pU | fs_id %d\n", __func__,
|
|
|
|
get_khandle_from_ino(inode), &orangefs_inode->refn.khandle,
|
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|
|
orangefs_inode->refn.fs_id);
|
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|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_RA_FLUSH);
|
|
|
|
if (!new_op)
|
|
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.ra_cache_flush.refn = orangefs_inode->refn;
|
|
|
|
|
|
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|
ret = service_operation(new_op, "orangefs_flush_racache",
|
|
|
|
get_interruptible_flag(inode));
|
|
|
|
|
|
|
|
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: got return value of %d\n",
|
|
|
|
__func__, ret);
|
|
|
|
|
|
|
|
op_release(new_op);
|
|
|
|
return ret;
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|
|
|
}
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|
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|
|
2015-07-17 14:38:12 +00:00
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|
|
/*
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|
|
|
* Post and wait for the I/O upcall to finish
|
|
|
|
*/
|
2018-02-16 20:51:24 +00:00
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|
|
ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
|
2019-11-26 17:39:37 +00:00
|
|
|
loff_t *offset, struct iov_iter *iter, size_t total_size,
|
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|
|
loff_t readahead_size, struct orangefs_write_range *wr,
|
|
|
|
int *index_return, struct file *file)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2015-11-24 20:12:14 +00:00
|
|
|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
|
|
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
|
|
|
|
struct orangefs_kernel_op_s *new_op = NULL;
|
2019-05-11 13:27:00 +00:00
|
|
|
int buffer_index;
|
2015-07-17 14:38:12 +00:00
|
|
|
ssize_t ret;
|
2019-03-25 22:59:29 +00:00
|
|
|
size_t copy_amount;
|
2019-11-26 17:39:37 +00:00
|
|
|
int open_for_read;
|
|
|
|
int open_for_write;
|
2015-07-17 14:38:12 +00:00
|
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|
|
2015-11-24 20:12:14 +00:00
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_FILE_IO);
|
2016-01-23 00:47:47 +00:00
|
|
|
if (!new_op)
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|
|
return -ENOMEM;
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|
|
2015-07-17 14:38:12 +00:00
|
|
|
/* synchronous I/O */
|
|
|
|
new_op->upcall.req.io.readahead_size = readahead_size;
|
|
|
|
new_op->upcall.req.io.io_type = type;
|
2015-11-24 20:12:14 +00:00
|
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|
new_op->upcall.req.io.refn = orangefs_inode->refn;
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
populate_shared_memory:
|
|
|
|
/* get a shared buffer index */
|
2016-02-17 01:10:26 +00:00
|
|
|
buffer_index = orangefs_bufmap_get();
|
|
|
|
if (buffer_index < 0) {
|
|
|
|
ret = buffer_index;
|
2015-07-17 14:38:12 +00:00
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2016-02-17 01:10:26 +00:00
|
|
|
"%s: orangefs_bufmap_get failure (%zd)\n",
|
|
|
|
__func__, ret);
|
2015-07-17 14:38:12 +00:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
|
|
"%s(%pU): GET op %p -> buffer_index %d\n",
|
|
|
|
__func__,
|
|
|
|
handle,
|
|
|
|
new_op,
|
|
|
|
buffer_index);
|
|
|
|
|
|
|
|
new_op->uses_shared_memory = 1;
|
|
|
|
new_op->upcall.req.io.buf_index = buffer_index;
|
|
|
|
new_op->upcall.req.io.count = total_size;
|
|
|
|
new_op->upcall.req.io.offset = *offset;
|
2018-12-14 20:24:43 +00:00
|
|
|
if (type == ORANGEFS_IO_WRITE && wr) {
|
|
|
|
new_op->upcall.uid = from_kuid(&init_user_ns, wr->uid);
|
|
|
|
new_op->upcall.gid = from_kgid(&init_user_ns, wr->gid);
|
|
|
|
}
|
2019-11-26 17:39:37 +00:00
|
|
|
/*
|
|
|
|
* Orangefs has no open, and orangefs checks file permissions
|
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|
* on each file access. Posix requires that file permissions
|
|
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|
* be checked on open and nowhere else. Orangefs-through-the-kernel
|
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|
* needs to seem posix compliant.
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|
*
|
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|
* The VFS opens files, even if the filesystem provides no
|
|
|
|
* method. We can see if a file was successfully opened for
|
|
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|
* read and or for write by looking at file->f_mode.
|
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|
*
|
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|
* When writes are flowing from the page cache, file is no
|
|
|
|
* longer available. We can trust the VFS to have checked
|
|
|
|
* file->f_mode before writing to the page cache.
|
|
|
|
*
|
|
|
|
* The mode of a file might change between when it is opened
|
|
|
|
* and IO commences, or it might be created with an arbitrary mode.
|
|
|
|
*
|
|
|
|
* We'll make sure we don't hit EACCES during the IO stage by
|
|
|
|
* using UID 0. Some of the time we have access without changing
|
|
|
|
* to UID 0 - how to check?
|
|
|
|
*/
|
|
|
|
if (file) {
|
|
|
|
open_for_write = file->f_mode & FMODE_WRITE;
|
|
|
|
open_for_read = file->f_mode & FMODE_READ;
|
|
|
|
} else {
|
|
|
|
open_for_write = 1;
|
|
|
|
open_for_read = 0; /* not relevant? */
|
|
|
|
}
|
|
|
|
if ((type == ORANGEFS_IO_WRITE) && open_for_write)
|
|
|
|
new_op->upcall.uid = 0;
|
|
|
|
if ((type == ORANGEFS_IO_READ) && open_for_read)
|
|
|
|
new_op->upcall.uid = 0;
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2015-10-08 22:00:26 +00:00
|
|
|
"%s(%pU): offset: %llu total_size: %zd\n",
|
2015-07-17 14:38:12 +00:00
|
|
|
__func__,
|
|
|
|
handle,
|
|
|
|
llu(*offset),
|
|
|
|
total_size);
|
|
|
|
/*
|
|
|
|
* Stage 1: copy the buffers into client-core's address space
|
|
|
|
*/
|
2018-03-20 17:00:12 +00:00
|
|
|
if (type == ORANGEFS_IO_WRITE && total_size) {
|
|
|
|
ret = orangefs_bufmap_copy_from_iovec(iter, buffer_index,
|
|
|
|
total_size);
|
|
|
|
if (ret < 0) {
|
|
|
|
gossip_err("%s: Failed to copy-in buffers. Please make sure that the pvfs2-client is running. %ld\n",
|
|
|
|
__func__, (long)ret);
|
2015-07-17 14:38:12 +00:00
|
|
|
goto out;
|
2018-03-20 17:00:12 +00:00
|
|
|
}
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
|
|
"%s(%pU): Calling post_io_request with tag (%llu)\n",
|
|
|
|
__func__,
|
|
|
|
handle,
|
|
|
|
llu(new_op->tag));
|
|
|
|
|
|
|
|
/* Stage 2: Service the I/O operation */
|
|
|
|
ret = service_operation(new_op,
|
2015-11-24 20:12:14 +00:00
|
|
|
type == ORANGEFS_IO_WRITE ?
|
2015-07-17 14:38:12 +00:00
|
|
|
"file_write" :
|
|
|
|
"file_read",
|
|
|
|
get_interruptible_flag(inode));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If service_operation() returns -EAGAIN #and# the operation was
|
2015-11-24 20:12:14 +00:00
|
|
|
* purged from orangefs_request_list or htable_ops_in_progress, then
|
2015-07-17 14:38:12 +00:00
|
|
|
* we know that the client was restarted, causing the shared memory
|
|
|
|
* area to be wiped clean. To restart a write operation in this
|
|
|
|
* case, we must re-copy the data from the user's iovec to a NEW
|
|
|
|
* shared memory location. To restart a read operation, we must get
|
|
|
|
* a new shared memory location.
|
|
|
|
*/
|
|
|
|
if (ret == -EAGAIN && op_state_purged(new_op)) {
|
2016-02-12 02:34:52 +00:00
|
|
|
orangefs_bufmap_put(buffer_index);
|
2016-02-07 06:25:06 +00:00
|
|
|
if (type == ORANGEFS_IO_WRITE)
|
2017-04-13 07:12:24 +00:00
|
|
|
iov_iter_revert(iter, total_size);
|
2015-07-17 14:38:12 +00:00
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
|
|
"%s:going to repopulate_shared_memory.\n",
|
|
|
|
__func__);
|
|
|
|
goto populate_shared_memory;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret < 0) {
|
2016-03-09 18:12:37 +00:00
|
|
|
if (ret == -EINTR) {
|
|
|
|
/*
|
|
|
|
* We can't return EINTR if any data was written,
|
|
|
|
* it's not POSIX. It is minimally acceptable
|
|
|
|
* to give a partial write, the way NFS does.
|
|
|
|
*
|
|
|
|
* It would be optimal to return all or nothing,
|
|
|
|
* but if a userspace write is bigger than
|
|
|
|
* an IO buffer, and the interrupt occurs
|
|
|
|
* between buffer writes, that would not be
|
|
|
|
* possible.
|
|
|
|
*/
|
|
|
|
switch (new_op->op_state - OP_VFS_STATE_GIVEN_UP) {
|
|
|
|
/*
|
|
|
|
* If the op was waiting when the interrupt
|
|
|
|
* occurred, then the client-core did not
|
|
|
|
* trigger the write.
|
|
|
|
*/
|
|
|
|
case OP_VFS_STATE_WAITING:
|
|
|
|
if (*offset == 0)
|
|
|
|
ret = -EINTR;
|
|
|
|
else
|
|
|
|
ret = 0;
|
|
|
|
break;
|
2018-05-11 21:11:48 +00:00
|
|
|
/*
|
2016-03-09 18:12:37 +00:00
|
|
|
* If the op was in progress when the interrupt
|
|
|
|
* occurred, then the client-core was able to
|
|
|
|
* trigger the write.
|
|
|
|
*/
|
|
|
|
case OP_VFS_STATE_INPROGR:
|
2018-11-06 19:51:39 +00:00
|
|
|
if (type == ORANGEFS_IO_READ)
|
|
|
|
ret = -EINTR;
|
|
|
|
else
|
|
|
|
ret = total_size;
|
2016-03-09 18:12:37 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
gossip_err("%s: unexpected op state :%d:.\n",
|
|
|
|
__func__,
|
|
|
|
new_op->op_state);
|
|
|
|
ret = 0;
|
|
|
|
break;
|
|
|
|
}
|
2015-07-17 14:38:12 +00:00
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2016-03-09 18:12:37 +00:00
|
|
|
"%s: got EINTR, state:%d: %p\n",
|
|
|
|
__func__,
|
|
|
|
new_op->op_state,
|
|
|
|
new_op);
|
|
|
|
} else {
|
2015-07-17 14:38:12 +00:00
|
|
|
gossip_err("%s: error in %s handle %pU, returning %zd\n",
|
|
|
|
__func__,
|
2015-11-24 20:12:14 +00:00
|
|
|
type == ORANGEFS_IO_READ ?
|
2015-07-17 14:38:12 +00:00
|
|
|
"read from" : "write to",
|
|
|
|
handle, ret);
|
2016-03-09 18:12:37 +00:00
|
|
|
}
|
2016-02-12 04:07:19 +00:00
|
|
|
if (orangefs_cancel_op_in_progress(new_op))
|
|
|
|
return ret;
|
|
|
|
|
2016-02-14 02:06:50 +00:00
|
|
|
goto out;
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Stage 3: Post copy buffers from client-core's address space
|
|
|
|
*/
|
2018-03-20 17:00:12 +00:00
|
|
|
if (type == ORANGEFS_IO_READ && new_op->downcall.resp.io.amt_complete) {
|
|
|
|
/*
|
|
|
|
* NOTE: the iovector can either contain addresses which
|
|
|
|
* can futher be kernel-space or user-space addresses.
|
|
|
|
* or it can pointers to struct page's
|
|
|
|
*/
|
2019-03-25 22:59:29 +00:00
|
|
|
|
2021-03-28 21:18:11 +00:00
|
|
|
copy_amount = new_op->downcall.resp.io.amt_complete;
|
2019-03-25 22:59:29 +00:00
|
|
|
|
2018-03-20 17:00:12 +00:00
|
|
|
ret = orangefs_bufmap_copy_to_iovec(iter, buffer_index,
|
2019-03-25 22:59:29 +00:00
|
|
|
copy_amount);
|
2018-03-20 17:00:12 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
gossip_err("%s: Failed to copy-out buffers. Please make sure that the pvfs2-client is running (%ld)\n",
|
|
|
|
__func__, (long)ret);
|
2016-02-14 02:06:50 +00:00
|
|
|
goto out;
|
2018-03-20 17:00:12 +00:00
|
|
|
}
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2016-03-03 18:46:48 +00:00
|
|
|
"%s(%pU): Amount %s, returned by the sys-io call:%d\n",
|
2015-07-17 14:38:12 +00:00
|
|
|
__func__,
|
|
|
|
handle,
|
2016-03-03 18:46:48 +00:00
|
|
|
type == ORANGEFS_IO_READ ? "read" : "written",
|
2015-07-17 14:38:12 +00:00
|
|
|
(int)new_op->downcall.resp.io.amt_complete);
|
|
|
|
|
|
|
|
ret = new_op->downcall.resp.io.amt_complete;
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (buffer_index >= 0) {
|
2021-03-28 21:18:11 +00:00
|
|
|
orangefs_bufmap_put(buffer_index);
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
|
|
"%s(%pU): PUT buffer_index %d\n",
|
|
|
|
__func__, handle, buffer_index);
|
|
|
|
buffer_index = -1;
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
2016-01-23 00:47:47 +00:00
|
|
|
op_release(new_op);
|
2015-07-17 14:38:12 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2019-02-12 20:19:06 +00:00
|
|
|
int orangefs_revalidate_mapping(struct inode *inode)
|
|
|
|
{
|
|
|
|
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
|
|
|
|
struct address_space *mapping = inode->i_mapping;
|
|
|
|
unsigned long *bitlock = &orangefs_inode->bitlock;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
ret = wait_on_bit(bitlock, 1, TASK_KILLABLE);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
spin_lock(&inode->i_lock);
|
|
|
|
if (test_bit(1, bitlock)) {
|
|
|
|
spin_unlock(&inode->i_lock);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (!time_before(jiffies, orangefs_inode->mapping_time))
|
|
|
|
break;
|
|
|
|
spin_unlock(&inode->i_lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
set_bit(1, bitlock);
|
|
|
|
smp_wmb();
|
|
|
|
spin_unlock(&inode->i_lock);
|
|
|
|
|
|
|
|
unmap_mapping_range(mapping, 0, 0, 0);
|
|
|
|
ret = filemap_write_and_wait(mapping);
|
|
|
|
if (!ret)
|
|
|
|
ret = invalidate_inode_pages2(mapping);
|
|
|
|
|
|
|
|
orangefs_inode->mapping_time = jiffies +
|
|
|
|
orangefs_cache_timeout_msecs*HZ/1000;
|
|
|
|
|
|
|
|
clear_bit(1, bitlock);
|
|
|
|
smp_mb__after_atomic();
|
|
|
|
wake_up_bit(bitlock, 1);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2018-02-16 20:51:24 +00:00
|
|
|
static ssize_t orangefs_file_read_iter(struct kiocb *iocb,
|
|
|
|
struct iov_iter *iter)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2019-02-12 20:19:06 +00:00
|
|
|
int ret;
|
2016-08-15 19:33:42 +00:00
|
|
|
orangefs_stats.reads++;
|
2019-02-12 20:19:06 +00:00
|
|
|
|
|
|
|
down_read(&file_inode(iocb->ki_filp)->i_rwsem);
|
|
|
|
ret = orangefs_revalidate_mapping(file_inode(iocb->ki_filp));
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
ret = generic_file_read_iter(iocb, iter);
|
|
|
|
out:
|
|
|
|
up_read(&file_inode(iocb->ki_filp)->i_rwsem);
|
|
|
|
return ret;
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
|
2018-02-22 18:10:43 +00:00
|
|
|
static ssize_t orangefs_file_write_iter(struct kiocb *iocb,
|
|
|
|
struct iov_iter *iter)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2019-02-12 20:19:06 +00:00
|
|
|
int ret;
|
2016-08-15 19:33:42 +00:00
|
|
|
orangefs_stats.writes++;
|
2019-02-12 20:19:06 +00:00
|
|
|
|
|
|
|
if (iocb->ki_pos > i_size_read(file_inode(iocb->ki_filp))) {
|
|
|
|
ret = orangefs_revalidate_mapping(file_inode(iocb->ki_filp));
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = generic_file_write_iter(iocb, iter);
|
|
|
|
return ret;
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
|
2018-06-28 18:42:40 +00:00
|
|
|
static vm_fault_t orangefs_fault(struct vm_fault *vmf)
|
2018-04-03 16:27:12 +00:00
|
|
|
{
|
|
|
|
struct file *file = vmf->vma->vm_file;
|
2018-06-28 18:42:40 +00:00
|
|
|
int ret;
|
2018-02-07 18:44:50 +00:00
|
|
|
ret = orangefs_inode_getattr(file->f_mapping->host,
|
|
|
|
ORANGEFS_GETATTR_SIZE);
|
2018-06-28 18:42:40 +00:00
|
|
|
if (ret == -ESTALE)
|
|
|
|
ret = -EIO;
|
|
|
|
if (ret) {
|
2018-02-07 18:44:50 +00:00
|
|
|
gossip_err("%s: orangefs_inode_getattr failed, "
|
|
|
|
"ret:%d:.\n", __func__, ret);
|
2018-06-28 18:42:40 +00:00
|
|
|
return VM_FAULT_SIGBUS;
|
2018-04-03 16:27:12 +00:00
|
|
|
}
|
|
|
|
return filemap_fault(vmf);
|
|
|
|
}
|
|
|
|
|
2018-04-05 10:50:10 +00:00
|
|
|
static const struct vm_operations_struct orangefs_file_vm_ops = {
|
2018-04-03 16:27:12 +00:00
|
|
|
.fault = orangefs_fault,
|
|
|
|
.map_pages = filemap_map_pages,
|
2018-12-14 20:24:43 +00:00
|
|
|
.page_mkwrite = orangefs_page_mkwrite,
|
2018-04-03 16:27:12 +00:00
|
|
|
};
|
|
|
|
|
2015-07-17 14:38:12 +00:00
|
|
|
/*
|
|
|
|
* Memory map a region of a file.
|
|
|
|
*/
|
2015-11-24 20:12:14 +00:00
|
|
|
static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2019-02-12 20:19:06 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = orangefs_revalidate_mapping(file_inode(file));
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
2015-07-17 14:38:12 +00:00
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2021-01-07 02:59:52 +00:00
|
|
|
"orangefs_file_mmap: called on %pD\n", file);
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
/* set the sequential readahead hint */
|
|
|
|
vma->vm_flags |= VM_SEQ_READ;
|
|
|
|
vma->vm_flags &= ~VM_RAND_READ;
|
2015-09-30 17:11:54 +00:00
|
|
|
|
2018-04-03 16:27:12 +00:00
|
|
|
file_accessed(file);
|
|
|
|
vma->vm_ops = &orangefs_file_vm_ops;
|
|
|
|
return 0;
|
2015-07-17 14:38:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#define mapping_nrpages(idata) ((idata)->nrpages)
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called to notify the module that there are no more references to
|
|
|
|
* this file (i.e. no processes have it open).
|
|
|
|
*
|
|
|
|
* \note Not called when each file is closed.
|
|
|
|
*/
|
2015-11-24 20:12:14 +00:00
|
|
|
static int orangefs_file_release(struct inode *inode, struct file *file)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2016-08-07 16:20:01 +00:00
|
|
|
"orangefs_file_release: called on %pD\n",
|
|
|
|
file);
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
/*
|
2016-08-02 18:31:05 +00:00
|
|
|
* remove all associated inode pages from the page cache and
|
2015-10-05 17:44:24 +00:00
|
|
|
* readahead cache (if any); this forces an expensive refresh of
|
|
|
|
* data for the next caller of mmap (or 'get_block' accesses)
|
2015-07-17 14:38:12 +00:00
|
|
|
*/
|
2022-08-20 17:14:38 +00:00
|
|
|
if (mapping_nrpages(file->f_mapping)) {
|
2016-08-12 20:12:09 +00:00
|
|
|
if (orangefs_features & ORANGEFS_FEATURE_READAHEAD) {
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
|
|
"calling flush_racache on %pU\n",
|
|
|
|
get_khandle_from_ino(inode));
|
|
|
|
flush_racache(inode);
|
|
|
|
gossip_debug(GOSSIP_INODE_DEBUG,
|
|
|
|
"flush_racache finished\n");
|
|
|
|
}
|
2018-12-14 22:04:21 +00:00
|
|
|
|
2016-08-02 20:32:15 +00:00
|
|
|
}
|
2015-07-17 14:38:12 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Push all data for a specific file onto permanent storage.
|
|
|
|
*/
|
2015-11-24 20:12:14 +00:00
|
|
|
static int orangefs_fsync(struct file *file,
|
2015-07-28 17:27:51 +00:00
|
|
|
loff_t start,
|
|
|
|
loff_t end,
|
|
|
|
int datasync)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2017-04-12 12:06:02 +00:00
|
|
|
int ret;
|
2015-11-24 20:12:14 +00:00
|
|
|
struct orangefs_inode_s *orangefs_inode =
|
2016-10-21 04:33:57 +00:00
|
|
|
ORANGEFS_I(file_inode(file));
|
2015-11-24 20:12:14 +00:00
|
|
|
struct orangefs_kernel_op_s *new_op = NULL;
|
2015-07-17 14:38:12 +00:00
|
|
|
|
2018-02-22 18:10:43 +00:00
|
|
|
ret = filemap_write_and_wait_range(file_inode(file)->i_mapping,
|
|
|
|
start, end);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2015-11-24 20:12:14 +00:00
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_FSYNC);
|
2015-07-17 14:38:12 +00:00
|
|
|
if (!new_op)
|
|
|
|
return -ENOMEM;
|
2015-11-24 20:12:14 +00:00
|
|
|
new_op->upcall.req.fsync.refn = orangefs_inode->refn;
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
ret = service_operation(new_op,
|
2015-11-24 20:12:14 +00:00
|
|
|
"orangefs_fsync",
|
2016-10-21 04:33:57 +00:00
|
|
|
get_interruptible_flag(file_inode(file)));
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2015-11-24 20:12:14 +00:00
|
|
|
"orangefs_fsync got return value of %d\n",
|
2015-07-17 14:38:12 +00:00
|
|
|
ret);
|
|
|
|
|
|
|
|
op_release(new_op);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Change the file pointer position for an instance of an open file.
|
|
|
|
*
|
|
|
|
* \note If .llseek is overriden, we must acquire lock as described in
|
2019-07-26 12:51:27 +00:00
|
|
|
* Documentation/filesystems/locking.rst.
|
2015-07-17 14:38:12 +00:00
|
|
|
*
|
|
|
|
* Future upgrade could support SEEK_DATA and SEEK_HOLE but would
|
|
|
|
* require much changes to the FS
|
|
|
|
*/
|
2015-11-24 20:12:14 +00:00
|
|
|
static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
|
|
|
int ret = -EINVAL;
|
2016-02-17 01:25:19 +00:00
|
|
|
struct inode *inode = file_inode(file);
|
2015-07-17 14:38:12 +00:00
|
|
|
|
2016-02-17 01:25:19 +00:00
|
|
|
if (origin == SEEK_END) {
|
2015-07-17 14:38:12 +00:00
|
|
|
/*
|
|
|
|
* revalidate the inode's file size.
|
|
|
|
* NOTE: We are only interested in file size here,
|
|
|
|
* so we set mask accordingly.
|
|
|
|
*/
|
2018-02-07 18:44:50 +00:00
|
|
|
ret = orangefs_inode_getattr(file->f_mapping->host,
|
|
|
|
ORANGEFS_GETATTR_SIZE);
|
2016-03-15 16:33:20 +00:00
|
|
|
if (ret == -ESTALE)
|
|
|
|
ret = -EIO;
|
2015-07-17 14:38:12 +00:00
|
|
|
if (ret) {
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
|
|
|
"%s:%s:%d calling make bad inode\n",
|
|
|
|
__FILE__,
|
|
|
|
__func__,
|
|
|
|
__LINE__);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
gossip_debug(GOSSIP_FILE_DEBUG,
|
2015-11-24 20:12:14 +00:00
|
|
|
"orangefs_file_llseek: offset is %ld | origin is %d"
|
2015-10-05 17:44:24 +00:00
|
|
|
" | inode size is %lu\n",
|
2015-07-17 14:38:12 +00:00
|
|
|
(long)offset,
|
|
|
|
origin,
|
2016-02-17 01:25:19 +00:00
|
|
|
(unsigned long)i_size_read(inode));
|
2015-07-17 14:38:12 +00:00
|
|
|
|
|
|
|
return generic_file_llseek(file, offset, origin);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Support local locks (locks that only this kernel knows about)
|
|
|
|
* if Orangefs was mounted -o local_lock.
|
|
|
|
*/
|
2015-11-24 20:12:14 +00:00
|
|
|
static int orangefs_lock(struct file *filp, int cmd, struct file_lock *fl)
|
2015-07-17 14:38:12 +00:00
|
|
|
{
|
2015-09-24 16:53:05 +00:00
|
|
|
int rc = -EINVAL;
|
2015-07-17 14:38:12 +00:00
|
|
|
|
2016-12-04 23:24:56 +00:00
|
|
|
if (ORANGEFS_SB(file_inode(filp)->i_sb)->flags & ORANGEFS_OPT_LOCAL_LOCK) {
|
2015-07-17 14:38:12 +00:00
|
|
|
if (cmd == F_GETLK) {
|
|
|
|
rc = 0;
|
|
|
|
posix_test_lock(filp, fl);
|
|
|
|
} else {
|
|
|
|
rc = posix_lock_file(filp, fl, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2018-02-22 18:10:43 +00:00
|
|
|
static int orangefs_flush(struct file *file, fl_owner_t id)
|
|
|
|
{
|
2018-03-26 18:58:11 +00:00
|
|
|
/*
|
|
|
|
* This is vfs_fsync_range(file, 0, LLONG_MAX, 0) without the
|
|
|
|
* service_operation in orangefs_fsync.
|
|
|
|
*
|
|
|
|
* Do not send fsync to OrangeFS server on a close. Do send fsync
|
|
|
|
* on an explicit fsync call. This duplicates historical OrangeFS
|
|
|
|
* behavior.
|
|
|
|
*/
|
|
|
|
int r;
|
|
|
|
|
|
|
|
r = filemap_write_and_wait_range(file->f_mapping, 0, LLONG_MAX);
|
|
|
|
if (r > 0)
|
|
|
|
return 0;
|
|
|
|
else
|
|
|
|
return r;
|
2018-02-22 18:10:43 +00:00
|
|
|
}
|
|
|
|
|
2015-11-24 20:12:14 +00:00
|
|
|
/** ORANGEFS implementation of VFS file operations */
|
|
|
|
const struct file_operations orangefs_file_operations = {
|
|
|
|
.llseek = orangefs_file_llseek,
|
|
|
|
.read_iter = orangefs_file_read_iter,
|
|
|
|
.write_iter = orangefs_file_write_iter,
|
|
|
|
.lock = orangefs_lock,
|
|
|
|
.mmap = orangefs_file_mmap,
|
2020-04-08 12:52:40 +00:00
|
|
|
.open = generic_file_open,
|
2020-12-16 21:14:08 +00:00
|
|
|
.splice_read = generic_file_splice_read,
|
|
|
|
.splice_write = iter_file_splice_write,
|
2018-02-22 18:10:43 +00:00
|
|
|
.flush = orangefs_flush,
|
2015-11-24 20:12:14 +00:00
|
|
|
.release = orangefs_file_release,
|
|
|
|
.fsync = orangefs_fsync,
|
2015-07-17 14:38:12 +00:00
|
|
|
};
|