*
* vfs operations that deal with files
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2010
* Author(s): Steve French (sfrench@us.ibm.com)
* Jeremy Allison (jra@samba.org)
*
/* all arguments to this function must be checked for validity in caller */
static inline int
cifs_posix_open_inode_helper(struct inode *inode, struct file *file,
- struct cifsInodeInfo *pCifsInode,
- struct cifsFileInfo *pCifsFile, __u32 oplock,
+ struct cifsInodeInfo *pCifsInode, __u32 oplock,
u16 netfid)
{
if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
(file->f_path.dentry->d_inode->i_size ==
(loff_t)le64_to_cpu(buf->EndOfFile))) {
- cFYI(1, ("inode unchanged on server"));
+ cFYI(1, "inode unchanged on server");
} else {
if (file->f_path.dentry->d_inode->i_mapping) {
rc = filemap_write_and_wait(file->f_path.dentry->d_inode->i_mapping);
if (rc != 0)
CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
}
- cFYI(1, ("invalidating remote inode since open detected it "
- "changed"));
+ cFYI(1, "invalidating remote inode since open detected it "
+ "changed");
invalidate_remote_inode(file->f_path.dentry->d_inode);
} */
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
- cFYI(1, ("Exclusive Oplock granted on inode %p",
- file->f_path.dentry->d_inode));
+ cFYI(1, "Exclusive Oplock granted on inode %p",
+ file->f_path.dentry->d_inode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
if (file->private_data != NULL) {
return pCifsFile;
} else if ((file->f_flags & O_CREAT) && (file->f_flags & O_EXCL))
- cERROR(1, ("could not find file instance for "
- "new file %p", file));
+ cERROR(1, "could not find file instance for "
+ "new file %p", file);
return NULL;
}
if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
(file->f_path.dentry->d_inode->i_size ==
(loff_t)le64_to_cpu(buf->EndOfFile))) {
- cFYI(1, ("inode unchanged on server"));
+ cFYI(1, "inode unchanged on server");
} else {
if (file->f_path.dentry->d_inode->i_mapping) {
/* BB no need to lock inode until after invalidate
if (rc != 0)
CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
}
- cFYI(1, ("invalidating remote inode since open detected it "
- "changed"));
+ cFYI(1, "invalidating remote inode since open detected it "
+ "changed");
invalidate_remote_inode(file->f_path.dentry->d_inode);
}
if ((*oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
- cFYI(1, ("Exclusive Oplock granted on inode %p",
- file->f_path.dentry->d_inode));
+ cFYI(1, "Exclusive Oplock granted on inode %p",
+ file->f_path.dentry->d_inode);
} else if ((*oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
return rc;
}
- cFYI(1, ("inode = 0x%p file flags are 0x%x for %s",
- inode, file->f_flags, full_path));
+ cFYI(1, "inode = 0x%p file flags are 0x%x for %s",
+ inode, file->f_flags, full_path);
if (oplockEnabled)
oplock = REQ_OPLOCK;
cifs_sb->mnt_file_mode /* ignored */,
oflags, &oplock, &netfid, xid);
if (rc == 0) {
- cFYI(1, ("posix open succeeded"));
+ cFYI(1, "posix open succeeded");
/* no need for special case handling of setting mode
on read only files needed here */
pCifsFile = cifs_fill_filedata(file);
cifs_posix_open_inode_helper(inode, file, pCifsInode,
- pCifsFile, oplock, netfid);
+ oplock, netfid);
goto out;
} else if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
if (tcon->ses->serverNOS)
- cERROR(1, ("server %s of type %s returned"
+ cERROR(1, "server %s of type %s returned"
" unexpected error on SMB posix open"
", disabling posix open support."
" Check if server update available.",
tcon->ses->serverName,
- tcon->ses->serverNOS));
+ tcon->ses->serverNOS);
tcon->broken_posix_open = true;
} else if ((rc != -EIO) && (rc != -EREMOTE) &&
(rc != -EOPNOTSUPP)) /* path not found or net err */
& CIFS_MOUNT_MAP_SPECIAL_CHR);
}
if (rc) {
- cFYI(1, ("cifs_open returned 0x%x", rc));
+ cFYI(1, "cifs_open returned 0x%x", rc);
goto out;
}
}
if (file->f_path.dentry == NULL) {
- cERROR(1, ("no valid name if dentry freed"));
+ cERROR(1, "no valid name if dentry freed");
dump_stack();
rc = -EBADF;
goto reopen_error_exit;
inode = file->f_path.dentry->d_inode;
if (inode == NULL) {
- cERROR(1, ("inode not valid"));
+ cERROR(1, "inode not valid");
dump_stack();
rc = -EBADF;
goto reopen_error_exit;
return rc;
}
- cFYI(1, ("inode = 0x%p file flags 0x%x for %s",
- inode, file->f_flags, full_path));
+ cFYI(1, "inode = 0x%p file flags 0x%x for %s",
+ inode, file->f_flags, full_path);
if (oplockEnabled)
oplock = REQ_OPLOCK;
cifs_sb->mnt_file_mode /* ignored */,
oflags, &oplock, &netfid, xid);
if (rc == 0) {
- cFYI(1, ("posix reopen succeeded"));
+ cFYI(1, "posix reopen succeeded");
goto reopen_success;
}
/* fallthrough to retry open the old way on errors, especially
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc) {
mutex_unlock(&pCifsFile->fh_mutex);
- cFYI(1, ("cifs_open returned 0x%x", rc));
- cFYI(1, ("oplock: %d", oplock));
+ cFYI(1, "cifs_open returned 0x%x", rc);
+ cFYI(1, "oplock: %d", oplock);
} else {
reopen_success:
pCifsFile->netfid = netfid;
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
- cFYI(1, ("Exclusive Oplock granted on inode %p",
- file->f_path.dentry->d_inode));
+ cFYI(1, "Exclusive Oplock granted on inode %p",
+ file->f_path.dentry->d_inode);
} else if ((oplock & 0xF) == OPLOCK_READ) {
pCifsInode->clientCanCacheRead = true;
pCifsInode->clientCanCacheAll = false;
the struct would be in each open file,
but this should give enough time to
clear the socket */
- cFYI(DBG2,
- ("close delay, write pending"));
+ cFYI(DBG2, "close delay, write pending");
msleep(timeout);
timeout *= 4;
}
read_lock(&GlobalSMBSeslock);
if (list_empty(&(CIFS_I(inode)->openFileList))) {
- cFYI(1, ("closing last open instance for inode %p", inode));
+ cFYI(1, "closing last open instance for inode %p", inode);
/* if the file is not open we do not know if we can cache info
on this inode, much less write behind and read ahead */
CIFS_I(inode)->clientCanCacheRead = false;
(struct cifsFileInfo *)file->private_data;
char *ptmp;
- cFYI(1, ("Closedir inode = 0x%p", inode));
+ cFYI(1, "Closedir inode = 0x%p", inode);
xid = GetXid();
pTcon = cifs_sb->tcon;
- cFYI(1, ("Freeing private data in close dir"));
+ cFYI(1, "Freeing private data in close dir");
write_lock(&GlobalSMBSeslock);
if (!pCFileStruct->srch_inf.endOfSearch &&
!pCFileStruct->invalidHandle) {
pCFileStruct->invalidHandle = true;
write_unlock(&GlobalSMBSeslock);
rc = CIFSFindClose(xid, pTcon, pCFileStruct->netfid);
- cFYI(1, ("Closing uncompleted readdir with rc %d",
- rc));
+ cFYI(1, "Closing uncompleted readdir with rc %d",
+ rc);
/* not much we can do if it fails anyway, ignore rc */
rc = 0;
} else
write_unlock(&GlobalSMBSeslock);
ptmp = pCFileStruct->srch_inf.ntwrk_buf_start;
if (ptmp) {
- cFYI(1, ("closedir free smb buf in srch struct"));
+ cFYI(1, "closedir free smb buf in srch struct");
pCFileStruct->srch_inf.ntwrk_buf_start = NULL;
if (pCFileStruct->srch_inf.smallBuf)
cifs_small_buf_release(ptmp);
rc = -EACCES;
xid = GetXid();
- cFYI(1, ("Lock parm: 0x%x flockflags: "
+ cFYI(1, "Lock parm: 0x%x flockflags: "
"0x%x flocktype: 0x%x start: %lld end: %lld",
cmd, pfLock->fl_flags, pfLock->fl_type, pfLock->fl_start,
- pfLock->fl_end));
+ pfLock->fl_end);
if (pfLock->fl_flags & FL_POSIX)
- cFYI(1, ("Posix"));
+ cFYI(1, "Posix");
if (pfLock->fl_flags & FL_FLOCK)
- cFYI(1, ("Flock"));
+ cFYI(1, "Flock");
if (pfLock->fl_flags & FL_SLEEP) {
- cFYI(1, ("Blocking lock"));
+ cFYI(1, "Blocking lock");
wait_flag = true;
}
if (pfLock->fl_flags & FL_ACCESS)
- cFYI(1, ("Process suspended by mandatory locking - "
- "not implemented yet"));
+ cFYI(1, "Process suspended by mandatory locking - "
+ "not implemented yet");
if (pfLock->fl_flags & FL_LEASE)
- cFYI(1, ("Lease on file - not implemented yet"));
+ cFYI(1, "Lease on file - not implemented yet");
if (pfLock->fl_flags &
(~(FL_POSIX | FL_FLOCK | FL_SLEEP | FL_ACCESS | FL_LEASE)))
- cFYI(1, ("Unknown lock flags 0x%x", pfLock->fl_flags));
+ cFYI(1, "Unknown lock flags 0x%x", pfLock->fl_flags);
if (pfLock->fl_type == F_WRLCK) {
- cFYI(1, ("F_WRLCK "));
+ cFYI(1, "F_WRLCK ");
numLock = 1;
} else if (pfLock->fl_type == F_UNLCK) {
- cFYI(1, ("F_UNLCK"));
+ cFYI(1, "F_UNLCK");
numUnlock = 1;
/* Check if unlock includes more than
one lock range */
} else if (pfLock->fl_type == F_RDLCK) {
- cFYI(1, ("F_RDLCK"));
+ cFYI(1, "F_RDLCK");
lockType |= LOCKING_ANDX_SHARED_LOCK;
numLock = 1;
} else if (pfLock->fl_type == F_EXLCK) {
- cFYI(1, ("F_EXLCK"));
+ cFYI(1, "F_EXLCK");
numLock = 1;
} else if (pfLock->fl_type == F_SHLCK) {
- cFYI(1, ("F_SHLCK"));
+ cFYI(1, "F_SHLCK");
lockType |= LOCKING_ANDX_SHARED_LOCK;
numLock = 1;
} else
- cFYI(1, ("Unknown type of lock"));
+ cFYI(1, "Unknown type of lock");
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
tcon = cifs_sb->tcon;
0 /* wait flag */ );
pfLock->fl_type = F_UNLCK;
if (rc != 0)
- cERROR(1, ("Error unlocking previously locked "
- "range %d during test of lock", rc));
+ cERROR(1, "Error unlocking previously locked "
+ "range %d during test of lock", rc);
rc = 0;
} else {
0 /* wait flag */);
pfLock->fl_type = F_RDLCK;
if (rc != 0)
- cERROR(1, ("Error unlocking "
+ cERROR(1, "Error unlocking "
"previously locked range %d "
- "during test of lock", rc));
+ "during test of lock", rc);
rc = 0;
} else {
pfLock->fl_type = F_WRLCK;
1, 0, li->type, false);
if (stored_rc)
rc = stored_rc;
-
- list_del(&li->llist);
- kfree(li);
+ else {
+ list_del(&li->llist);
+ kfree(li);
+ }
}
}
mutex_unlock(&fid->lock_mutex);
pTcon = cifs_sb->tcon;
- /* cFYI(1,
- (" write %d bytes to offset %lld of %s", write_size,
- *poffset, file->f_path.dentry->d_name.name)); */
+ /* cFYI(1, " write %d bytes to offset %lld of %s", write_size,
+ *poffset, file->f_path.dentry->d_name.name); */
if (file->private_data == NULL)
return -EBADF;
pTcon = cifs_sb->tcon;
- cFYI(1, ("write %zd bytes to offset %lld of %s", write_size,
- *poffset, file->f_path.dentry->d_name.name));
+ cFYI(1, "write %zd bytes to offset %lld of %s", write_size,
+ *poffset, file->f_path.dentry->d_name.name);
if (file->private_data == NULL)
return -EBADF;
it being zero) during stress testcases so we need to check for it */
if (cifs_inode == NULL) {
- cERROR(1, ("Null inode passed to cifs_writeable_file"));
+ cERROR(1, "Null inode passed to cifs_writeable_file");
dump_stack();
return NULL;
}
again. Note that it would be bad
to hold up writepages here (rather than
in caller) with continuous retries */
- cFYI(1, ("wp failed on reopen file"));
+ cFYI(1, "wp failed on reopen file");
read_lock(&GlobalSMBSeslock);
/* can not use this handle, no write
pending on this one after all */
else if (bytes_written < 0)
rc = bytes_written;
} else {
- cFYI(1, ("No writeable filehandles for inode"));
+ cFYI(1, "No writeable filehandles for inode");
rc = -EIO;
}
*/
open_file = find_writable_file(CIFS_I(mapping->host));
if (!open_file) {
- cERROR(1, ("No writable handles for inode"));
+ cERROR(1, "No writable handles for inode");
rc = -EBADF;
} else {
long_op = cifs_write_timeout(cifsi, offset);
cifs_update_eof(cifsi, offset, bytes_written);
if (rc || bytes_written < bytes_to_write) {
- cERROR(1, ("Write2 ret %d, wrote %d",
- rc, bytes_written));
+ cERROR(1, "Write2 ret %d, wrote %d",
+ rc, bytes_written);
/* BB what if continued retry is
requested via mount flags? */
if (rc == -ENOSPC)
/* BB add check for wbc flags */
page_cache_get(page);
if (!PageUptodate(page))
- cFYI(1, ("ppw - page not up to date"));
+ cFYI(1, "ppw - page not up to date");
/*
* Set the "writeback" flag, and clear "dirty" in the radix tree.
int rc;
struct inode *inode = mapping->host;
- cFYI(1, ("write_end for page %p from pos %lld with %d bytes",
- page, pos, copied));
+ cFYI(1, "write_end for page %p from pos %lld with %d bytes",
+ page, pos, copied);
if (PageChecked(page)) {
if (copied == len)
return rc;
}
-int cifs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int cifs_fsync(struct file *file, int datasync)
{
int xid;
int rc = 0;
xid = GetXid();
- cFYI(1, ("Sync file - name: %s datasync: 0x%x",
- dentry->d_name.name, datasync));
+ cFYI(1, "Sync file - name: %s datasync: 0x%x",
+ file->f_path.dentry->d_name.name, datasync);
rc = filemap_write_and_wait(inode->i_mapping);
if (rc == 0) {
unsigned int rpages = 0;
int rc = 0;
- cFYI(1, ("sync page %p",page));
+ cFYI(1, "sync page %p", page);
mapping = page->mapping;
if (!mapping)
return 0;
/* fill in rpages then
result = cifs_pagein_inode(inode, index, rpages); */ /* BB finish */
-/* cFYI(1, ("rpages is %d for sync page of Index %ld", rpages, index));
+/* cFYI(1, "rpages is %d for sync page of Index %ld", rpages, index);
#if 0
if (rc < 0)
CIFS_I(inode)->write_behind_rc = 0;
}
- cFYI(1, ("Flush inode %p file %p rc %d", inode, file, rc));
+ cFYI(1, "Flush inode %p file %p rc %d", inode, file, rc);
return rc;
}
open_file = (struct cifsFileInfo *)file->private_data;
if ((file->f_flags & O_ACCMODE) == O_WRONLY)
- cFYI(1, ("attempting read on write only file instance"));
+ cFYI(1, "attempting read on write only file instance");
for (total_read = 0, current_offset = read_data;
read_size > total_read;
open_file = (struct cifsFileInfo *)file->private_data;
if ((file->f_flags & O_ACCMODE) == O_WRONLY)
- cFYI(1, ("attempting read on write only file instance"));
+ cFYI(1, "attempting read on write only file instance");
for (total_read = 0, current_offset = read_data;
read_size > total_read;
xid = GetXid();
rc = cifs_revalidate_file(file);
if (rc) {
- cFYI(1, ("Validation prior to mmap failed, error=%d", rc));
+ cFYI(1, "Validation prior to mmap failed, error=%d", rc);
FreeXid(xid);
return rc;
}
static void cifs_copy_cache_pages(struct address_space *mapping,
- struct list_head *pages, int bytes_read, char *data,
- struct pagevec *plru_pvec)
+ struct list_head *pages, int bytes_read, char *data)
{
struct page *page;
char *target;
page = list_entry(pages->prev, struct page, lru);
list_del(&page->lru);
- if (add_to_page_cache(page, mapping, page->index,
+ if (add_to_page_cache_lru(page, mapping, page->index,
GFP_KERNEL)) {
page_cache_release(page);
- cFYI(1, ("Add page cache failed"));
+ cFYI(1, "Add page cache failed");
data += PAGE_CACHE_SIZE;
bytes_read -= PAGE_CACHE_SIZE;
continue;
}
+ page_cache_release(page);
target = kmap_atomic(page, KM_USER0);
flush_dcache_page(page);
SetPageUptodate(page);
unlock_page(page);
- if (!pagevec_add(plru_pvec, page))
- __pagevec_lru_add_file(plru_pvec);
data += PAGE_CACHE_SIZE;
}
return;
unsigned int read_size, i;
char *smb_read_data = NULL;
struct smb_com_read_rsp *pSMBr;
- struct pagevec lru_pvec;
struct cifsFileInfo *open_file;
int buf_type = CIFS_NO_BUFFER;
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
pTcon = cifs_sb->tcon;
- pagevec_init(&lru_pvec, 0);
- cFYI(DBG2, ("rpages: num pages %d", num_pages));
+ cFYI(DBG2, "rpages: num pages %d", num_pages);
for (i = 0; i < num_pages; ) {
unsigned contig_pages;
struct page *tmp_page;
/* Read size needs to be in multiples of one page */
read_size = min_t(const unsigned int, read_size,
cifs_sb->rsize & PAGE_CACHE_MASK);
- cFYI(DBG2, ("rpages: read size 0x%x contiguous pages %d",
- read_size, contig_pages));
+ cFYI(DBG2, "rpages: read size 0x%x contiguous pages %d",
+ read_size, contig_pages);
rc = -EAGAIN;
while (rc == -EAGAIN) {
if ((open_file->invalidHandle) &&
}
}
if ((rc < 0) || (smb_read_data == NULL)) {
- cFYI(1, ("Read error in readpages: %d", rc));
+ cFYI(1, "Read error in readpages: %d", rc);
break;
} else if (bytes_read > 0) {
task_io_account_read(bytes_read);
pSMBr = (struct smb_com_read_rsp *)smb_read_data;
cifs_copy_cache_pages(mapping, page_list, bytes_read,
smb_read_data + 4 /* RFC1001 hdr */ +
- le16_to_cpu(pSMBr->DataOffset), &lru_pvec);
+ le16_to_cpu(pSMBr->DataOffset));
i += bytes_read >> PAGE_CACHE_SHIFT;
cifs_stats_bytes_read(pTcon, bytes_read);
/* break; */
}
} else {
- cFYI(1, ("No bytes read (%d) at offset %lld . "
- "Cleaning remaining pages from readahead list",
- bytes_read, offset));
+ cFYI(1, "No bytes read (%d) at offset %lld . "
+ "Cleaning remaining pages from readahead list",
+ bytes_read, offset);
/* BB turn off caching and do new lookup on
file size at server? */
break;
bytes_read = 0;
}
- pagevec_lru_add_file(&lru_pvec);
-
/* need to free smb_read_data buf before exit */
if (smb_read_data) {
if (buf_type == CIFS_SMALL_BUFFER)
if (rc < 0)
goto io_error;
else
- cFYI(1, ("Bytes read %d", rc));
+ cFYI(1, "Bytes read %d", rc);
file->f_path.dentry->d_inode->i_atime =
current_fs_time(file->f_path.dentry->d_inode->i_sb);
return rc;
}
- cFYI(1, ("readpage %p at offset %d 0x%x\n",
- page, (int)offset, (int)offset));
+ cFYI(1, "readpage %p at offset %d 0x%x\n",
+ page, (int)offset, (int)offset);
rc = cifs_readpage_worker(file, page, &offset);
struct page *page;
int rc = 0;
- cFYI(1, ("write_begin from %lld len %d", (long long)pos, len));
+ cFYI(1, "write_begin from %lld len %d", (long long)pos, len);
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page) {
int rc, waitrc = 0;
if (inode && S_ISREG(inode->i_mode)) {
-#ifdef CONFIG_CIFS_EXPERIMENTAL
- if (cinode->clientCanCacheAll == 0)
+ if (cinode->clientCanCacheRead)
break_lease(inode, O_RDONLY);
- else if (cinode->clientCanCacheRead == 0)
+ else
break_lease(inode, O_WRONLY);
-#endif
rc = filemap_fdatawrite(inode->i_mapping);
if (cinode->clientCanCacheRead == 0) {
waitrc = filemap_fdatawait(inode->i_mapping);
rc = waitrc;
if (rc)
cinode->write_behind_rc = rc;
- cFYI(1, ("Oplock flush inode %p rc %d", inode, rc));
+ cFYI(1, "Oplock flush inode %p rc %d", inode, rc);
}
/*
if (!cfile->closePend && !cfile->oplock_break_cancelled) {
rc = CIFSSMBLock(0, cifs_sb->tcon, cfile->netfid, 0, 0, 0, 0,
LOCKING_ANDX_OPLOCK_RELEASE, false);
- cFYI(1, ("Oplock release rc = %d", rc));
+ cFYI(1, "Oplock release rc = %d", rc);
}
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff