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Orangefs: This pull request includes one fix and our "Orangefs through

Browse Source 
the pagecache" patch series which greatly improves our small IO
 performance and helps us pass more xfstests than before.
 
 fix: orangefs: truncate before updating size
 
 Pagecache series: all the rest
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Merge tag 'for-linus-5.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "This includes one fix and our "Orangefs through the pagecache" patch
  series which greatly improves our small IO performance and helps us
  pass more xfstests than before.

  Fix:
   - orangefs: truncate before updating size

  Pagecache series:
   - all the rest"

* tag 'for-linus-5.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: (23 commits)
  orangefs: truncate before updating size
  orangefs: copy Orangefs-sized blocks into the pagecache if possible.
  orangefs: pass slot index back to readpage.
  orangefs: remember count when reading.
  orangefs: add orangefs_revalidate_mapping
  orangefs: implement writepages
  orangefs: write range tracking
  orangefs: avoid fsync service operation on flush
  orangefs: skip inode writeout if nothing to write
  orangefs: move do_readv_writev to direct_IO
  orangefs: do not return successful read when the client-core disappeared
  orangefs: implement writepage
  orangefs: migrate to generic_file_read_iter
  orangefs: service ops done for writeback are not killable
  orangefs: remove orangefs_readpages
  orangefs: reorganize setattr functions to track attribute changes
  orangefs: let setattr write to cached inode
  orangefs: set up and use backing_dev_info
  orangefs: hold i_lock during inode_getattr
  orangefs: update attributes rather than relying on server
  ...
This commit is contained in:
Linus Torvalds 2019-05-09 09:37:25 -07:00
commit 8823880561
14 changed files with 1304 additions and 494 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/orangefs/acl.c
View File

@ -142,7 +142,7 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
rc = __orangefs_set_acl(inode, acl, type);
} else {
iattr.ia_valid = ATTR_MODE;
rc = orangefs_inode_setattr(inode, &iattr);
rc = __orangefs_setattr(inode, &iattr);
}
return rc;
@ -185,7 +185,7 @@ int orangefs_init_acl(struct inode *inode, struct inode *dir)
inode->i_mode = mode;
iattr.ia_mode = mode;
iattr.ia_valid |= ATTR_MODE;
orangefs_inode_setattr(inode, &iattr);
__orangefs_setattr(inode, &iattr);
}
return error;

399
fs/orangefs/file.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
@ -44,15 +45,16 @@ static int flush_racache(struct inode *inode)
/*
* Post and wait for the I/O upcall to finish
*/
static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
loff_t *offset, struct iov_iter *iter,
size_t total_size, loff_t readahead_size)
ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
loff_t *offset, struct iov_iter *iter, size_t total_size,
loff_t readahead_size, struct orangefs_write_range *wr, int *index_return)
{
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;
int buffer_index = -1;
ssize_t ret;
size_t copy_amount;
new_op = op_alloc(ORANGEFS_VFS_OP_FILE_IO);
if (!new_op)
@ -84,6 +86,10 @@ populate_shared_memory:
new_op->upcall.req.io.buf_index = buffer_index;
new_op->upcall.req.io.count = total_size;
new_op->upcall.req.io.offset = *offset;
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);
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): offset: %llu total_size: %zd\n",
@ -168,7 +174,10 @@ populate_shared_memory:
* trigger the write.
*/
case OP_VFS_STATE_INPROGR:
ret = total_size;
if (type == ORANGEFS_IO_READ)
ret = -EINTR;
else
ret = total_size;
break;
default:
gossip_err("%s: unexpected op state :%d:.\n",
@ -204,8 +213,25 @@ populate_shared_memory:
* can futher be kernel-space or user-space addresses.
* or it can pointers to struct page's
*/
/*
* When reading, readahead_size will only be zero when
* we're doing O_DIRECT, otherwise we got here from
* orangefs_readpage.
*
* If we got here from orangefs_readpage we want to
* copy either a page or the whole file into the io
* vector, whichever is smaller.
*/
if (readahead_size)
copy_amount =
min(new_op->downcall.resp.io.amt_complete,
(__s64)PAGE_SIZE);
else
copy_amount = new_op->downcall.resp.io.amt_complete;
ret = orangefs_bufmap_copy_to_iovec(iter, buffer_index,
new_op->downcall.resp.io.amt_complete);
copy_amount);
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);
@ -223,246 +249,112 @@ populate_shared_memory:
out:
if (buffer_index >= 0) {
orangefs_bufmap_put(buffer_index);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): PUT buffer_index %d\n",
__func__, handle, buffer_index);
if ((readahead_size) && (type == ORANGEFS_IO_READ)) {
/* readpage */
*index_return = buffer_index;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s: hold on to buffer_index :%d:\n",
__func__, buffer_index);
} else {
/* O_DIRECT */
orangefs_bufmap_put(buffer_index);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): PUT buffer_index %d\n",
__func__, handle, buffer_index);
}
buffer_index = -1;
}
op_release(new_op);
return ret;
}
/*
* Common entry point for read/write/readv/writev
* This function will dispatch it to either the direct I/O
* or buffered I/O path depending on the mount options and/or
* augmented/extended metadata attached to the file.
* Note: File extended attributes override any mount options.
*/
static ssize_t do_readv_writev(enum ORANGEFS_io_type type, struct file *file,
loff_t *offset, struct iov_iter *iter)
int orangefs_revalidate_mapping(struct inode *inode)
{
struct inode *inode = file->f_mapping->host;
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
size_t count = iov_iter_count(iter);
ssize_t total_count = 0;
ssize_t ret = -EINVAL;
struct address_space *mapping = inode->i_mapping;
unsigned long *bitlock = &orangefs_inode->bitlock;
int ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n",
__func__,
handle,
(int)count);
if (type == ORANGEFS_IO_WRITE) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): proceeding with offset : %llu, "
"size %d\n",
__func__,
handle,
llu(*offset),
(int)count);
}
if (count == 0) {
ret = 0;
goto out;
}
while (iov_iter_count(iter)) {
size_t each_count = iov_iter_count(iter);
size_t amt_complete;
/* how much to transfer in this loop iteration */
if (each_count > orangefs_bufmap_size_query())
each_count = orangefs_bufmap_size_query();
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): size of each_count(%d)\n",
__func__,
handle,
(int)each_count);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): BEFORE wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
ret = wait_for_direct_io(type, inode, offset, iter,
each_count, 0);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): return from wait_for_io:%d\n",
__func__,
handle,
(int)ret);
if (ret < 0)
goto out;
*offset += ret;
total_count += ret;
amt_complete = ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): AFTER wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
/*
* if we got a short I/O operations,
* fall out and return what we got so far
*/
if (amt_complete < each_count)
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;
} /*end while */
out:
if (total_count > 0)
ret = total_count;
if (ret > 0) {
if (type == ORANGEFS_IO_READ) {
file_accessed(file);
} else {
file_update_time(file);
/*
* Must invalidate to ensure write loop doesn't
* prevent kernel from reading updated
* attribute. Size probably changed because of
* the write, and other clients could update
* any other attribute.
*/
orangefs_inode->getattr_time = jiffies - 1;
}
spin_unlock(&inode->i_lock);
return 0;
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): Value(%d) returned.\n",
__func__,
handle,
(int)ret);
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;
}
/*
* Read data from a specified offset in a file (referenced by inode).
* Data may be placed either in a user or kernel buffer.
*/
ssize_t orangefs_inode_read(struct inode *inode,
struct iov_iter *iter,
loff_t *offset,
loff_t readahead_size)
static ssize_t orangefs_file_read_iter(struct kiocb *iocb,
struct iov_iter *iter)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
size_t count = iov_iter_count(iter);
size_t bufmap_size;
ssize_t ret = -EINVAL;
int ret;
struct orangefs_read_options *ro;
orangefs_stats.reads++;
bufmap_size = orangefs_bufmap_size_query();
if (count > bufmap_size) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s: count is too large (%zd/%zd)!\n",
__func__, count, bufmap_size);
return -EINVAL;
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU) %zd@%llu\n",
__func__,
&orangefs_inode->refn.khandle,
count,
llu(*offset));
ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, offset, iter,
count, readahead_size);
if (ret > 0)
*offset += ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): Value(%zd) returned.\n",
__func__,
&orangefs_inode->refn.khandle,
ret);
return ret;
}
static ssize_t orangefs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
loff_t pos = iocb->ki_pos;
ssize_t rc = 0;
gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_read_iter\n");
orangefs_stats.reads++;
rc = do_readv_writev(ORANGEFS_IO_READ, file, &pos, iter);
iocb->ki_pos = pos;
return rc;
}
static ssize_t orangefs_file_write_iter(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
loff_t pos;
ssize_t rc;
gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_write_iter\n");
inode_lock(file->f_mapping->host);
/* Make sure generic_write_checks sees an up to date inode size. */
if (file->f_flags & O_APPEND) {
rc = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
if (rc == -ESTALE)
rc = -EIO;
if (rc) {
gossip_err("%s: orangefs_inode_getattr failed, "
"rc:%zd:.\n", __func__, rc);
goto out;
}
}
rc = generic_write_checks(iocb, iter);
if (rc <= 0) {
gossip_err("%s: generic_write_checks failed, rc:%zd:.\n",
__func__, rc);
goto out;
}
/*
* if we are appending, generic_write_checks would have updated
* pos to the end of the file, so we will wait till now to set
* pos...
* Remember how they set "count" in read(2) or pread(2) or whatever -
* users can use count as a knob to control orangefs io size and later
* we can try to help them fill as many pages as possible in readpage.
*/
pos = iocb->ki_pos;
rc = do_readv_writev(ORANGEFS_IO_WRITE,
file,
&pos,
iter);
if (rc < 0) {
gossip_err("%s: do_readv_writev failed, rc:%zd:.\n",
__func__, rc);
goto out;
if (!iocb->ki_filp->private_data) {
iocb->ki_filp->private_data = kmalloc(sizeof *ro, GFP_KERNEL);
if (!iocb->ki_filp->private_data)
return(ENOMEM);
ro = iocb->ki_filp->private_data;
ro->blksiz = iter->count;
}
iocb->ki_pos = pos;
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;
}
static ssize_t orangefs_file_write_iter(struct kiocb *iocb,
struct iov_iter *iter)
{
int ret;
orangefs_stats.writes++;
out:
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;
}
inode_unlock(file->f_mapping->host);
return rc;
ret = generic_file_write_iter(iocb, iter);
return ret;
}
/*
@ -528,14 +420,13 @@ static vm_fault_t orangefs_fault(struct vm_fault *vmf)
{
struct file *file = vmf->vma->vm_file;
int ret;
ret = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
ret = orangefs_inode_getattr(file->f_mapping->host,
ORANGEFS_GETATTR_SIZE);
if (ret == -ESTALE)
ret = -EIO;
if (ret) {
gossip_err("%s: orangefs_inode_getattr failed, ret:%d:.\n",
__func__, ret);
gossip_err("%s: orangefs_inode_getattr failed, "
"ret:%d:.\n", __func__, ret);
return VM_FAULT_SIGBUS;
}
return filemap_fault(vmf);
@ -544,7 +435,7 @@ static vm_fault_t orangefs_fault(struct vm_fault *vmf)
static const struct vm_operations_struct orangefs_file_vm_ops = {
.fault = orangefs_fault,
.map_pages = filemap_map_pages,
.page_mkwrite = filemap_page_mkwrite,
.page_mkwrite = orangefs_page_mkwrite,
};
/*
@ -552,15 +443,18 @@ static const struct vm_operations_struct orangefs_file_vm_ops = {
*/
static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
int ret;
ret = orangefs_revalidate_mapping(file_inode(file));
if (ret)
return ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"orangefs_file_mmap: called on %s\n",
(file ?
(char *)file->f_path.dentry->d_name.name :
(char *)"Unknown"));
if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE))
return -EINVAL;
/* set the sequential readahead hint */
vma->vm_flags |= VM_SEQ_READ;
vma->vm_flags &= ~VM_RAND_READ;
@ -600,8 +494,7 @@ static int orangefs_file_release(struct inode *inode, struct file *file)
gossip_debug(GOSSIP_INODE_DEBUG,
"flush_racache finished\n");
}
truncate_inode_pages(file_inode(file)->i_mapping,
0);
}
return 0;
}
@ -619,6 +512,11 @@ static int orangefs_fsync(struct file *file,
ORANGEFS_I(file_inode(file));
struct orangefs_kernel_op_s *new_op = NULL;
ret = filemap_write_and_wait_range(file_inode(file)->i_mapping,
start, end);
if (ret < 0)
return ret;
new_op = op_alloc(ORANGEFS_VFS_OP_FSYNC);
if (!new_op)
return -ENOMEM;
@ -656,8 +554,8 @@ static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
* NOTE: We are only interested in file size here,
* so we set mask accordingly.
*/
ret = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
ret = orangefs_inode_getattr(file->f_mapping->host,
ORANGEFS_GETATTR_SIZE);
if (ret == -ESTALE)
ret = -EIO;
if (ret) {
@ -700,6 +598,42 @@ static int orangefs_lock(struct file *filp, int cmd, struct file_lock *fl)
return rc;
}
static int orangefs_file_open(struct inode * inode, struct file *file)
{
file->private_data = NULL;
return generic_file_open(inode, file);
}
static int orangefs_flush(struct file *file, fl_owner_t id)
{
/*
* 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.
*/
struct inode *inode = file->f_mapping->host;
int r;
kfree(file->private_data);
file->private_data = NULL;
if (inode->i_state & I_DIRTY_TIME) {
spin_lock(&inode->i_lock);
inode->i_state &= ~I_DIRTY_TIME;
spin_unlock(&inode->i_lock);
mark_inode_dirty_sync(inode);
}
r = filemap_write_and_wait_range(file->f_mapping, 0, LLONG_MAX);
if (r > 0)
return 0;
else
return r;
}
/** ORANGEFS implementation of VFS file operations */
const struct file_operations orangefs_file_operations = {
.llseek = orangefs_file_llseek,
@ -708,7 +642,8 @@ const struct file_operations orangefs_file_operations = {
.lock = orangefs_lock,
.unlocked_ioctl = orangefs_ioctl,
.mmap = orangefs_file_mmap,
.open = generic_file_open,
.open = orangefs_file_open,
.flush = orangefs_flush,
.release = orangefs_file_release,
.fsync = orangefs_fsync,
};

912
fs/orangefs/inode.c
View File

File diff suppressed because it is too large Load Diff

40
fs/orangefs/namei.c
View File

@ -76,19 +76,16 @@ static int orangefs_create(struct inode *dir,
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: dentry instantiated for %pd\n",
__func__,
dentry);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
ret = 0;
out:
op_release(new_op);
@ -210,11 +207,10 @@ static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
if (!ret) {
drop_nlink(inode);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
}
return ret;
}
@ -291,19 +287,16 @@ static int orangefs_symlink(struct inode *dir,
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Symlink) %pU -> %pd\n",
get_khandle_from_ino(inode),
dentry);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
ret = 0;
out:
op_release(new_op);
@ -360,8 +353,6 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Directory) %pU -> %pd\n",
@ -372,11 +363,10 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
* NOTE: we have no good way to keep nlink consistent for directories
* across clients; keep constant at 1.
*/
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
out:
op_release(new_op);
return ret;
@ -389,6 +379,7 @@ static int orangefs_rename(struct inode *old_dir,
unsigned int flags)
{
struct orangefs_kernel_op_s *new_op;
struct iattr iattr;
int ret;
if (flags)
@ -398,7 +389,10 @@ static int orangefs_rename(struct inode *old_dir,
"orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
old_dentry, new_dentry, d_count(new_dentry));
ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = jiffies - 1;
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(new_dir);
__orangefs_setattr(new_dir, &iattr);
new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
if (!new_op)

13
fs/orangefs/orangefs-bufmap.c
View File

@ -538,3 +538,16 @@ int orangefs_bufmap_copy_to_iovec(struct iov_iter *iter,
}
return 0;
}
void orangefs_bufmap_page_fill(void *page_to,
int buffer_index,
int slot_index)
{
struct orangefs_bufmap_desc *from;
void *page_from;
from = &__orangefs_bufmap->desc_array[buffer_index];
page_from = kmap_atomic(from->page_array[slot_index]);
memcpy(page_to, page_from, PAGE_SIZE);
kunmap_atomic(page_from);
}

2
fs/orangefs/orangefs-bufmap.h
View File

@ -34,4 +34,6 @@ int orangefs_bufmap_copy_to_iovec(struct iov_iter *iter,
int buffer_index,
size_t size);
void orangefs_bufmap_page_fill(void *kaddr, int buffer_index, int slot_index);
#endif /* __ORANGEFS_BUFMAP_H */

4
fs/orangefs/orangefs-debugfs.c
View File

@ -963,7 +963,7 @@ int orangefs_debugfs_new_client_mask(void __user *arg)
return ret;
}
int orangefs_debugfs_new_client_string(void __user *arg)
int orangefs_debugfs_new_client_string(void __user *arg)
{
int ret;
@ -1016,7 +1016,7 @@ int orangefs_debugfs_new_client_string(void __user *arg)
return 0;
}
int orangefs_debugfs_new_debug(void __user *arg)
int orangefs_debugfs_new_debug(void __user *arg)
{
struct dev_mask_info_s mask_info = {0};
int ret;

56
fs/orangefs/orangefs-kernel.h
View File

@ -51,6 +51,7 @@
#include <linux/rwsem.h>
#include <linux/xattr.h>
#include <linux/exportfs.h>
#include <linux/hashtable.h>
#include <asm/unaligned.h>
@ -192,7 +193,13 @@ struct orangefs_inode_s {
sector_t last_failed_block_index_read;
unsigned long getattr_time;
u32 getattr_mask;
unsigned long mapping_time;
int attr_valid;
kuid_t attr_uid;
kgid_t attr_gid;
unsigned long bitlock;
DECLARE_HASHTABLE(xattr_cache, 4);
};
/* per superblock private orangefs info */
@ -217,6 +224,25 @@ struct orangefs_stats {
unsigned long writes;
};
struct orangefs_cached_xattr {
struct hlist_node node;
char key[ORANGEFS_MAX_XATTR_NAMELEN];
char val[ORANGEFS_MAX_XATTR_VALUELEN];
ssize_t length;
unsigned long timeout;
};
struct orangefs_write_range {
loff_t pos;
size_t len;
kuid_t uid;
kgid_t gid;
};
struct orangefs_read_options {
ssize_t blksiz;
};
extern struct orangefs_stats orangefs_stats;
/*
@ -329,13 +355,15 @@ void fsid_key_table_finalize(void);
/*
* defined in inode.c
*/
vm_fault_t orangefs_page_mkwrite(struct vm_fault *);
struct inode *orangefs_new_inode(struct super_block *sb,
struct inode *dir,
int mode,
dev_t dev,
struct orangefs_object_kref *ref);
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr);
int __orangefs_setattr(struct inode *, struct iattr *);
int orangefs_setattr(struct dentry *, struct iattr *);
int orangefs_getattr(const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int flags);
@ -355,11 +383,6 @@ ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size);
struct inode *orangefs_iget(struct super_block *sb,
struct orangefs_object_kref *ref);
ssize_t orangefs_inode_read(struct inode *inode,
struct iov_iter *iter,
loff_t *offset,
loff_t readahead_size);
/*
* defined in devorangefs-req.c
*/
@ -370,6 +393,15 @@ void orangefs_dev_cleanup(void);
int is_daemon_in_service(void);
bool __is_daemon_in_service(void);
/*
* defined in file.c
*/
int orangefs_revalidate_mapping(struct inode *);
ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *,
struct iov_iter *, size_t, loff_t, struct orangefs_write_range *, int *);
ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *,
struct iov_iter *);
/*
* defined in orangefs-utils.c
*/
@ -386,12 +418,14 @@ int orangefs_inode_setxattr(struct inode *inode,
size_t size,
int flags);
int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
u32 request_mask);
#define ORANGEFS_GETATTR_NEW 1
#define ORANGEFS_GETATTR_SIZE 2
int orangefs_inode_getattr(struct inode *, int);
int orangefs_inode_check_changed(struct inode *inode);
int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr);
int orangefs_inode_setattr(struct inode *inode);
bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op);
@ -400,6 +434,7 @@ int orangefs_normalize_to_errno(__s32 error_code);
extern struct mutex orangefs_request_mutex;
extern int op_timeout_secs;
extern int slot_timeout_secs;
extern int orangefs_cache_timeout_msecs;
extern int orangefs_dcache_timeout_msecs;
extern int orangefs_getattr_timeout_msecs;
extern struct list_head orangefs_superblocks;
@ -426,6 +461,7 @@ extern const struct dentry_operations orangefs_dentry_operations;
#define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */
#define ORANGEFS_OP_NO_MUTEX 8 /* don't acquire request_mutex */
#define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */
#define ORANGEFS_OP_WRITEBACK 32
int service_operation(struct orangefs_kernel_op_s *op,
const char *op_name,

1
fs/orangefs/orangefs-mod.c
View File

@ -30,6 +30,7 @@ static ulong module_parm_debug_mask;
__u64 orangefs_gossip_debug_mask;
int op_timeout_secs = ORANGEFS_DEFAULT_OP_TIMEOUT_SECS;
int slot_timeout_secs = ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS;
int orangefs_cache_timeout_msecs = 50;
int orangefs_dcache_timeout_msecs = 50;
int orangefs_getattr_timeout_msecs = 50;

22
fs/orangefs/orangefs-sysfs.c
View File

@ -62,6 +62,14 @@
* Slots are requested and waited for,
* the wait times out after slot_timeout_secs.
*
* What: /sys/fs/orangefs/cache_timeout_msecs
* Date: Mar 2018
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Time in milliseconds between which
* orangefs_revalidate_mapping will invalidate the page
* cache.
*
* What: /sys/fs/orangefs/dcache_timeout_msecs
* Date: Jul 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
@ -221,6 +229,13 @@ static ssize_t sysfs_int_show(struct kobject *kobj,
"%d\n",
slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name,
"cache_timeout_msecs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
orangefs_cache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name,
"dcache_timeout_msecs")) {
rc = scnprintf(buf,
@ -277,6 +292,9 @@ static ssize_t sysfs_int_store(struct kobject *kobj,
} else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
rc = kstrtoint(buf, 0, &slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name, "cache_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_cache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name, "dcache_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_dcache_timeout_msecs);
goto out;
@ -818,6 +836,9 @@ static struct orangefs_attribute op_timeout_secs_attribute =
static struct orangefs_attribute slot_timeout_secs_attribute =
__ATTR(slot_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute cache_timeout_msecs_attribute =
__ATTR(cache_timeout_msecs, 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);
@ -861,6 +882,7 @@ static struct orangefs_attribute perf_time_interval_secs_attribute =
static struct attribute *orangefs_default_attrs[] = {
&op_timeout_secs_attribute.attr,
&slot_timeout_secs_attribute.attr,
&cache_timeout_msecs_attribute.attr,
&dcache_timeout_msecs_attribute.attr,
&getattr_timeout_msecs_attribute.attr,
&readahead_count_attribute.attr,

179
fs/orangefs/orangefs-utils.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
@ -135,51 +136,37 @@ static int orangefs_inode_perms(struct ORANGEFS_sys_attr_s *attrs)
* NOTE: in kernel land, we never use the sys_attr->link_target for
* anything, so don't bother copying it into the sys_attr object here.
*/
static inline int copy_attributes_from_inode(struct inode *inode,
struct ORANGEFS_sys_attr_s *attrs,
struct iattr *iattr)
static inline void copy_attributes_from_inode(struct inode *inode,
struct ORANGEFS_sys_attr_s *attrs)
{
umode_t tmp_mode;
if (!iattr || !inode || !attrs) {
gossip_err("NULL iattr (%p), inode (%p), attrs (%p) "
"in copy_attributes_from_inode!\n",
iattr,
inode,
attrs);
return -EINVAL;
}
/*
* We need to be careful to only copy the attributes out of the
* iattr object that we know are valid.
*/
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
attrs->mask = 0;
if (iattr->ia_valid & ATTR_UID) {
attrs->owner = from_kuid(&init_user_ns, iattr->ia_uid);
if (orangefs_inode->attr_valid & ATTR_UID) {
attrs->owner = from_kuid(&init_user_ns, inode->i_uid);
attrs->mask |= ORANGEFS_ATTR_SYS_UID;
gossip_debug(GOSSIP_UTILS_DEBUG, "(UID) %d\n", attrs->owner);
}
if (iattr->ia_valid & ATTR_GID) {
attrs->group = from_kgid(&init_user_ns, iattr->ia_gid);
if (orangefs_inode->attr_valid & ATTR_GID) {
attrs->group = from_kgid(&init_user_ns, inode->i_gid);
attrs->mask |= ORANGEFS_ATTR_SYS_GID;
gossip_debug(GOSSIP_UTILS_DEBUG, "(GID) %d\n", attrs->group);
}
if (iattr->ia_valid & ATTR_ATIME) {
if (orangefs_inode->attr_valid & ATTR_ATIME) {
attrs->mask |= ORANGEFS_ATTR_SYS_ATIME;
if (iattr->ia_valid & ATTR_ATIME_SET) {
attrs->atime = (time64_t)iattr->ia_atime.tv_sec;
if (orangefs_inode->attr_valid & ATTR_ATIME_SET) {
attrs->atime = (time64_t)inode->i_atime.tv_sec;
attrs->mask |= ORANGEFS_ATTR_SYS_ATIME_SET;
}
}
if (iattr->ia_valid & ATTR_MTIME) {
if (orangefs_inode->attr_valid & ATTR_MTIME) {
attrs->mask |= ORANGEFS_ATTR_SYS_MTIME;
if (iattr->ia_valid & ATTR_MTIME_SET) {
attrs->mtime = (time64_t)iattr->ia_mtime.tv_sec;
if (orangefs_inode->attr_valid & ATTR_MTIME_SET) {
attrs->mtime = (time64_t)inode->i_mtime.tv_sec;
attrs->mask |= ORANGEFS_ATTR_SYS_MTIME_SET;
}
}
if (iattr->ia_valid & ATTR_CTIME)
if (orangefs_inode->attr_valid & ATTR_CTIME)
attrs->mask |= ORANGEFS_ATTR_SYS_CTIME;
/*
@ -188,36 +175,10 @@ static inline int copy_attributes_from_inode(struct inode *inode,
* worry about ATTR_SIZE
*/
if (iattr->ia_valid & ATTR_MODE) {
tmp_mode = iattr->ia_mode;
if (tmp_mode & (S_ISVTX)) {
if (is_root_handle(inode)) {
/*
* allow sticky bit to be set on root (since
* it shows up that way by default anyhow),
* but don't show it to the server
*/
tmp_mode -= S_ISVTX;
} else {
gossip_debug(GOSSIP_UTILS_DEBUG,
"%s: setting sticky bit not supported.\n",
__func__);
return -EINVAL;
}
}
if (tmp_mode & (S_ISUID)) {
gossip_debug(GOSSIP_UTILS_DEBUG,
"%s: setting setuid bit not supported.\n",
__func__);
return -EINVAL;
}
attrs->perms = ORANGEFS_util_translate_mode(tmp_mode);
if (orangefs_inode->attr_valid & ATTR_MODE) {
attrs->perms = ORANGEFS_util_translate_mode(inode->i_mode);
attrs->mask |= ORANGEFS_ATTR_SYS_PERM;
}
return 0;
}
static int orangefs_inode_type(enum orangefs_ds_type objtype)
@ -272,27 +233,30 @@ static int orangefs_inode_is_stale(struct inode *inode,
return 0;
}
int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
u32 request_mask)
int orangefs_inode_getattr(struct inode *inode, int flags)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
loff_t inode_size;
int ret, type;
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: called on inode %pU\n", __func__,
get_khandle_from_ino(inode));
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: called on inode %pU flags %d\n",
__func__, get_khandle_from_ino(inode), flags);
if (!new && !bypass) {
/*
* Must have all the attributes in the mask and be within cache
* time.
*/
if ((request_mask & orangefs_inode->getattr_mask) ==
request_mask &&
time_before(jiffies, orangefs_inode->getattr_time))
return 0;
again:
spin_lock(&inode->i_lock);
/* Must have all the attributes in the mask and be within cache time. */
if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) ||
orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) {
if (orangefs_inode->attr_valid) {
spin_unlock(&inode->i_lock);
write_inode_now(inode, 1);
goto again;
}
spin_unlock(&inode->i_lock);
return 0;
}
spin_unlock(&inode->i_lock);
new_op = op_alloc(ORANGEFS_VFS_OP_GETATTR);
if (!new_op)
@ -302,7 +266,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
* Size is the hardest attribute to get. The incremental cost of any
* other attribute is essentially zero.
*/
if (request_mask & STATX_SIZE || new)
if (flags)
new_op->upcall.req.getattr.mask = ORANGEFS_ATTR_SYS_ALL_NOHINT;
else
new_op->upcall.req.getattr.mask =
@ -313,13 +277,33 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
if (ret != 0)
goto out;
if (!new) {
again2:
spin_lock(&inode->i_lock);
/* Must have all the attributes in the mask and be within cache time. */
if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) ||
orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) {
if (orangefs_inode->attr_valid) {
spin_unlock(&inode->i_lock);
write_inode_now(inode, 1);
goto again2;
}
if (inode->i_state & I_DIRTY_PAGES) {
ret = 0;
goto out_unlock;
}
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: in cache or dirty\n",
__func__);
ret = 0;
goto out_unlock;
}
if (!(flags & ORANGEFS_GETATTR_NEW)) {
ret = orangefs_inode_is_stale(inode,
&new_op->downcall.resp.getattr.attributes,
new_op->downcall.resp.getattr.link_target);
if (ret) {
ret = -ESTALE;
goto out;
goto out_unlock;
}
}
@ -329,30 +313,26 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
case S_IFREG:
inode->i_flags = orangefs_inode_flags(&new_op->
downcall.resp.getattr.attributes);
if (request_mask & STATX_SIZE || new) {
if (flags) {
inode_size = (loff_t)new_op->
downcall.resp.getattr.attributes.size;
inode->i_size = inode_size;
inode->i_blkbits = ffs(new_op->downcall.resp.getattr.
attributes.blksize);
spin_lock(&inode->i_lock);
inode->i_bytes = inode_size;
inode->i_blocks =
(inode_size + 512 - inode_size % 512)/512;
spin_unlock(&inode->i_lock);
}
break;
case S_IFDIR:
if (request_mask & STATX_SIZE || new) {
if (flags) {
inode->i_size = PAGE_SIZE;
spin_lock(&inode->i_lock);
inode_set_bytes(inode, inode->i_size);
spin_unlock(&inode->i_lock);
}
set_nlink(inode, 1);
break;
case S_IFLNK:
if (new) {
if (flags & ORANGEFS_GETATTR_NEW) {
inode->i_size = (loff_t)strlen(new_op->
downcall.resp.getattr.link_target);
ret = strscpy(orangefs_inode->link_target,
@ -360,7 +340,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
ORANGEFS_NAME_MAX);
if (ret == -E2BIG) {
ret = -EIO;
goto out;
goto out_unlock;
}
inode->i_link = orangefs_inode->link_target;
}
@ -370,7 +350,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
/* XXX: ESTALE? This is what is done if it is not new. */
orangefs_make_bad_inode(inode);
ret = -ESTALE;
goto out;
goto out_unlock;
}
inode->i_uid = make_kuid(&init_user_ns, new_op->
@ -393,11 +373,9 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
orangefs_inode->getattr_time = jiffies +
orangefs_getattr_timeout_msecs*HZ/1000;
if (request_mask & STATX_SIZE || new)
orangefs_inode->getattr_mask = STATX_BASIC_STATS;
else
orangefs_inode->getattr_mask = STATX_BASIC_STATS & ~STATX_SIZE;
ret = 0;
out_unlock:
spin_unlock(&inode->i_lock);
out:
op_release(new_op);
return ret;
@ -436,7 +414,7 @@ out:
* issues a orangefs setattr request to make sure the new attribute values
* take effect if successful. returns 0 on success; -errno otherwise
*/
int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
int orangefs_inode_setattr(struct inode *inode)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
@ -446,24 +424,31 @@ int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
if (!new_op)
return -ENOMEM;
spin_lock(&inode->i_lock);
new_op->upcall.uid = from_kuid(&init_user_ns, orangefs_inode->attr_uid);
new_op->upcall.gid = from_kgid(&init_user_ns, orangefs_inode->attr_gid);
new_op->upcall.req.setattr.refn = orangefs_inode->refn;
ret = copy_attributes_from_inode(inode,
&new_op->upcall.req.setattr.attributes,
iattr);
if (ret >= 0) {
ret = service_operation(new_op, __func__,
get_interruptible_flag(inode));
gossip_debug(GOSSIP_UTILS_DEBUG,
"orangefs_inode_setattr: returning %d\n",
ret);
copy_attributes_from_inode(inode,
&new_op->upcall.req.setattr.attributes);
orangefs_inode->attr_valid = 0;
if (!new_op->upcall.req.setattr.attributes.mask) {
spin_unlock(&inode->i_lock);
op_release(new_op);
return 0;
}
spin_unlock(&inode->i_lock);
ret = service_operation(new_op, __func__,
get_interruptible_flag(inode) | ORANGEFS_OP_WRITEBACK);
gossip_debug(GOSSIP_UTILS_DEBUG,
"orangefs_inode_setattr: returning %d\n", ret);
if (ret)
orangefs_make_bad_inode(inode);
op_release(new_op);
if (ret == 0)
orangefs_inode->getattr_time = jiffies - 1;
return ret;
}

42
fs/orangefs/super.c
View File

@ -10,6 +10,7 @@
#include "orangefs-bufmap.h"
#include <linux/parser.h>
#include <linux/hashtable.h>
/* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
static struct kmem_cache *orangefs_inode_cache;
@ -126,7 +127,17 @@ static struct inode *orangefs_alloc_inode(struct super_block *sb)
static void orangefs_free_inode(struct inode *inode)
{
kmem_cache_free(orangefs_inode_cache, ORANGEFS_I(inode));
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_cached_xattr *cx;
struct hlist_node *tmp;
int i;
hash_for_each_safe(orangefs_inode->xattr_cache, i, tmp, cx, node) {
hlist_del(&cx->node);
kfree(cx);
}
kmem_cache_free(orangefs_inode_cache, orangefs_inode);
}
static void orangefs_destroy_inode(struct inode *inode)
@ -138,6 +149,13 @@ static void orangefs_destroy_inode(struct inode *inode)
__func__, orangefs_inode, get_khandle_from_ino(inode));
}
static int orangefs_write_inode(struct inode *inode,
struct writeback_control *wbc)
{
gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_write_inode\n");
return orangefs_inode_setattr(inode);
}
/*
* NOTE: information filled in here is typically reflected in the
* output of the system command 'df'
@ -297,6 +315,7 @@ static const struct super_operations orangefs_s_ops = {
.alloc_inode = orangefs_alloc_inode,
.free_inode = orangefs_free_inode,
.destroy_inode = orangefs_destroy_inode,
.write_inode = orangefs_write_inode,
.drop_inode = generic_delete_inode,
.statfs = orangefs_statfs,
.remount_fs = orangefs_remount_fs,
@ -394,15 +413,11 @@ static int orangefs_fill_sb(struct super_block *sb,
struct orangefs_fs_mount_response *fs_mount,
void *data, int silent)
{
int ret = -EINVAL;
struct inode *root = NULL;
struct dentry *root_dentry = NULL;
int ret;
struct inode *root;
struct dentry *root_dentry;
struct orangefs_object_kref root_object;
/* alloc and init our private orangefs sb info */
sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
if (!ORANGEFS_SB(sb))
return -ENOMEM;
ORANGEFS_SB(sb)->sb = sb;
ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
@ -425,6 +440,10 @@ static int orangefs_fill_sb(struct super_block *sb,
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_maxbytes = MAX_LFS_FILESIZE;
ret = super_setup_bdi(sb);
if (ret)
return ret;
root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
gossip_debug(GOSSIP_SUPER_DEBUG,
@ -503,6 +522,13 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
goto free_op;
}
/* alloc and init our private orangefs sb info */
sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
if (!ORANGEFS_SB(sb)) {
d = ERR_PTR(-ENOMEM);
goto free_op;
}
ret = orangefs_fill_sb(sb,
&new_op->downcall.resp.fs_mount, data,
flags & SB_SILENT ? 1 : 0);

18
fs/orangefs/waitqueue.c
View File

@ -19,7 +19,7 @@
static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
long timeout,
bool interruptible)
int flags)
__acquires(op->lock);
static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op)
__releases(op->lock);
@ -143,9 +143,7 @@ retry_servicing:
if (!(flags & ORANGEFS_OP_NO_MUTEX))
mutex_unlock(&orangefs_request_mutex);
ret = wait_for_matching_downcall(op, timeout,
flags & ORANGEFS_OP_INTERRUPTIBLE);
ret = wait_for_matching_downcall(op, timeout, flags);
gossip_debug(GOSSIP_WAIT_DEBUG,
"%s: wait_for_matching_downcall returned %d for %p\n",
__func__,
@ -319,10 +317,12 @@ static void
*/
static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
long timeout,
bool interruptible)
int flags)
__acquires(op->lock)
{
long n;
int writeback = flags & ORANGEFS_OP_WRITEBACK,
interruptible = flags & ORANGEFS_OP_INTERRUPTIBLE;
/*
* There's a "schedule_timeout" inside of these wait
@ -330,10 +330,12 @@ static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
* user process that needs something done and is being
* manipulated by the client-core process.
*/
if (interruptible)
if (writeback)
n = wait_for_completion_io_timeout(&op->waitq, timeout);
else if (!writeback && interruptible)
n = wait_for_completion_interruptible_timeout(&op->waitq,
timeout);
else
timeout);
else /* !writeback && !interruptible but compiler complains */
n = wait_for_completion_killable_timeout(&op->waitq, timeout);
spin_lock(&op->lock);

106
fs/orangefs/xattr.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
@ -14,7 +15,7 @@
#include "orangefs-bufmap.h"
#include <linux/posix_acl_xattr.h>
#include <linux/xattr.h>
#include <linux/hashtable.h>
#define SYSTEM_ORANGEFS_KEY "system.pvfs2."
#define SYSTEM_ORANGEFS_KEY_LEN 13
@ -50,6 +51,35 @@ static inline int convert_to_internal_xattr_flags(int setxattr_flags)
return internal_flag;
}
static unsigned int xattr_key(const char *key)
{
unsigned int i = 0;
while (key)
i += *key++;
return i % 16;
}
static struct orangefs_cached_xattr *find_cached_xattr(struct inode *inode,
const char *key)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
h = &orangefs_inode->xattr_cache[xattr_key(key)];
if (hlist_empty(h))
return NULL;
hlist_for_each_entry_safe(cx, tmp, h, node) {
/* if (!time_before(jiffies, cx->timeout)) {
hlist_del(&cx->node);
kfree(cx);
continue;
}*/
if (!strcmp(cx->key, key))
return cx;
}
return NULL;
}
/*
* Tries to get a specified key's attributes of a given
@ -65,6 +95,7 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op = NULL;
struct orangefs_cached_xattr *cx;
ssize_t ret = -ENOMEM;
ssize_t length = 0;
int fsuid;
@ -93,6 +124,27 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
down_read(&orangefs_inode->xattr_sem);
cx = find_cached_xattr(inode, name);
if (cx && time_before(jiffies, cx->timeout)) {
if (cx->length == -1) {
ret = -ENODATA;
goto out_unlock;
} else {
if (size == 0) {
ret = cx->length;
goto out_unlock;
}
if (cx->length > size) {
ret = -ERANGE;
goto out_unlock;
}
memcpy(buffer, cx->val, cx->length);
memset(buffer + cx->length, 0, size - cx->length);
ret = cx->length;
goto out_unlock;
}
}
new_op = op_alloc(ORANGEFS_VFS_OP_GETXATTR);
if (!new_op)
goto out_unlock;
@ -117,6 +169,15 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
" does not exist!\n",
get_khandle_from_ino(inode),
(char *)new_op->upcall.req.getxattr.key);
cx = kmalloc(sizeof *cx, GFP_KERNEL);
if (cx) {
strcpy(cx->key, name);
cx->length = -1;
cx->timeout = jiffies +
orangefs_getattr_timeout_msecs*HZ/1000;
hash_add(orangefs_inode->xattr_cache, &cx->node,
xattr_key(cx->key));
}
}
goto out_release_op;
}
@ -156,6 +217,23 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
ret = length;
if (cx) {
strcpy(cx->key, name);
memcpy(cx->val, buffer, length);
cx->length = length;
cx->timeout = jiffies + HZ;
} else {
cx = kmalloc(sizeof *cx, GFP_KERNEL);
if (cx) {
strcpy(cx->key, name);
memcpy(cx->val, buffer, length);
cx->length = length;
cx->timeout = jiffies + HZ;
hash_add(orangefs_inode->xattr_cache, &cx->node,
xattr_key(cx->key));
}
}
out_release_op:
op_release(new_op);
out_unlock:
@ -168,6 +246,9 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op = NULL;
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
int ret = -ENOMEM;
if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN)
@ -209,6 +290,16 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
"orangefs_inode_removexattr: returning %d\n", ret);
op_release(new_op);
h = &orangefs_inode->xattr_cache[xattr_key(name)];
hlist_for_each_entry_safe(cx, tmp, h, node) {
if (!strcmp(cx->key, name)) {
hlist_del(&cx->node);
kfree(cx);
break;
}
}
out_unlock:
up_write(&orangefs_inode->xattr_sem);
return ret;
@ -226,6 +317,9 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
int internal_flag = 0;
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
int ret = -ENOMEM;
gossip_debug(GOSSIP_XATTR_DEBUG,
@ -287,6 +381,16 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
/* when request is serviced properly, free req op struct */
op_release(new_op);
h = &orangefs_inode->xattr_cache[xattr_key(name)];
hlist_for_each_entry_safe(cx, tmp, h, node) {
if (!strcmp(cx->key, name)) {
hlist_del(&cx->node);
kfree(cx);
break;
}
}
out_unlock:
up_write(&orangefs_inode->xattr_sem);
return ret;