/*
* If we're not journaling and this is a just-created file, we have to
* sync our parent directory (if it was freshly created) since
* otherwise it will only be written by writeback, leaving a huge
* window during which a crash may lose the file. This may apply for
* the parent directory's parent as well, and so on recursively, if
* they are also freshly created.
*/
static int ext4_sync_parent(struct inode *inode)
{
struct dentry *dentry = NULL;
struct inode *next;
int ret = 0;
if (!ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY))
return 0;
inode = igrab(inode);
while (ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
dentry = d_find_any_alias(inode);
if (!dentry)
break;
next = igrab(dentry->d_parent->d_inode);
dput(dentry);
if (!next)
break;
iput(inode);
inode = next;
ret = sync_mapping_buffers(inode->i_mapping);
if (ret)
break;
ret = sync_inode_metadata(inode, 1);
if (ret)
break;
}
iput(inode);
return ret;
}
static int fat_cont_expand(struct inode *inode, loff_t size)
{
struct address_space *mapping = inode->i_mapping;
loff_t start = inode->i_size, count = size - inode->i_size;
int err;
err = generic_cont_expand_simple(inode, size);
if (err)
goto out;
inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
if (IS_SYNC(inode)) {
int err2;
/*
* Opencode syncing since we don't have a file open to use
* standard fsync path.
*/
err = filemap_fdatawrite_range(mapping, start,
start + count - 1);
err2 = sync_mapping_buffers(mapping);
if (!err)
err = err2;
err2 = write_inode_now(inode, 1);
if (!err)
err = err2;
if (!err) {
err = filemap_fdatawait_range(mapping, start,
start + count - 1);
}
}
out:
return err;
}
/*
* If we're not journaling and this is a just-created file, we have to
* sync our parent directory (if it was freshly created) since
* otherwise it will only be written by writeback, leaving a huge
* window during which a crash may lose the file. This may apply for
* the parent directory's parent as well, and so on recursively, if
* they are also freshly created.
*/
static int ext4_sync_parent(struct inode *inode)
{
struct writeback_control wbc;
struct dentry *dentry = NULL;
struct inode *next;
int ret = 0;
if (!ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY))
return 0;
inode = igrab(inode);
while (ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
dentry = d_find_any_alias(inode);
if (!dentry)
break;
next = igrab(dentry->d_parent->d_inode);
dput(dentry);
if (!next)
break;
iput(inode);
inode = next;
ret = sync_mapping_buffers(inode->i_mapping);
if (ret)
break;
memset(&wbc, 0, sizeof(wbc));
wbc.sync_mode = WB_SYNC_ALL;
wbc.nr_to_write = 0; /* only write out the inode */
ret = sync_inode(inode, &wbc);
if (ret)
break;
}
iput(inode);
return ret;
}
int fat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
{
struct inode *inode = filp->f_mapping->host;
int res, err;
res = generic_file_fsync(filp, start, end, datasync);
err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);
return res ? res : err;
}
/*
* If we're not journaling and this is a just-created file, we have to
* sync our parent directory (if it was freshly created) since
* otherwise it will only be written by writeback, leaving a huge
* window during which a crash may lose the file. This may apply for
* the parent directory's parent as well, and so on recursively, if
* they are also freshly created.
*/
static void ext4_sync_parent(struct inode *inode)
{
struct dentry *dentry = NULL;
while (inode && ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
dentry = list_entry(inode->i_dentry.next,
struct dentry, d_alias);
if (!dentry || !dentry->d_parent || !dentry->d_parent->d_inode)
break;
inode = dentry->d_parent->d_inode;
sync_mapping_buffers(inode->i_mapping);
}
}
int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
err = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return err;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return err;
err |= sysv_sync_inode(inode);
return err ? -EIO : 0;
}
/**
* __sync_file - generic_file_fsync without the locking and filemap_write
* @inode: inode to sync
* @datasync: only sync essential metadata if true
*
* This is just generic_file_fsync without the locking. This is needed for
* nojournal mode to make sure this inodes data/metadata makes it to disk
* properly. The i_mutex should be held already.
*/
static int __sync_inode(struct inode *inode, int datasync)
{
int err;
int ret;
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return ret;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return ret;
err = sync_inode_metadata(inode, 1);
if (ret == 0)
ret = err;
return ret;
}
int ufs_sync_file(struct file *file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
int ret;
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return ret;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return ret;
err = ufs_sync_inode(inode);
if (ret == 0)
ret = err;
return ret;
}
static int reiserfs_sync_file(
struct file * p_s_filp,
struct dentry * p_s_dentry,
int datasync
) {
struct inode * p_s_inode = p_s_dentry->d_inode;
int n_err;
reiserfs_write_lock(p_s_inode->i_sb);
if (!S_ISREG(p_s_inode->i_mode))
BUG ();
n_err = sync_mapping_buffers(p_s_inode->i_mapping) ;
reiserfs_commit_for_inode(p_s_inode) ;
reiserfs_write_unlock(p_s_inode->i_sb);
return ( n_err < 0 ) ? -EIO : 0;
}
/*
* If we're not journaling and this is a just-created file, we have to
* sync our parent directory (if it was freshly created) since
* otherwise it will only be written by writeback, leaving a huge
* window during which a crash may lose the file. This may apply for
* the parent directory's parent as well, and so on recursively, if
* they are also freshly created.
*/
static int ext4_sync_parent(struct inode *inode)
{
struct dentry *dentry = NULL;
struct inode *next;
int ret = 0;
if (!ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY))
return 0;
inode = igrab(inode);
while (ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
dentry = d_find_any_alias(inode);
if (!dentry)
break;
next = igrab(d_inode(dentry->d_parent));
dput(dentry);
if (!next)
break;
iput(inode);
inode = next;
/*
* The directory inode may have gone through rmdir by now. But
* the inode itself and its blocks are still allocated (we hold
* a reference to the inode so it didn't go through
* ext4_evict_inode()) and so we are safe to flush metadata
* blocks and the inode.
*/
ret = sync_mapping_buffers(inode->i_mapping);
if (ret)
break;
ret = sync_inode_metadata(inode, 1);
if (ret)
break;
}
iput(inode);
return ret;
}
static int ocfs2_sync_inode(struct inode *inode)
{
filemap_fdatawrite(inode->i_mapping);
return sync_mapping_buffers(inode->i_mapping);
}
int
xixfs_sync_inode(struct inode *inode)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = 0, /* sys_fsync did this */
};
return sync_inode(inode, &wbc);
}
#endif
int
xixfs_sync_file(
struct file *file,
struct dentry *dentry,
int datasync
)
{
struct inode *inode = dentry->d_inode;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
int err = 0;
int ret = 0;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_sync_file (%s).\n", file->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_sync_file : is read only .\n"));
return -EPERM;
}
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
#if LINUX_VERSION_25_ABOVE
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return ret;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return ret;
xixfs_sync_inode(inode);
#endif
if(XIXCORE_TEST_FLAGS(pFCB->XixcoreFcb.FCBFlags,XIXCORE_FCB_MODIFIED_FILE)){
#if LINUX_VERSION_25_ABOVE
err = xixfs_write_inode(inode, 1);
#else
xixfs_write_inode(inode, 1);
#endif
if(pFCB->XixcoreFcb.WriteStartOffset != -1){
printk(KERN_DEBUG "Set Update Information!!!\n");
xixfs_SendFileChangeRC(
pVCB->XixcoreVcb.HostMac,
pFCB->XixcoreFcb.LotNumber,
pVCB->XixcoreVcb.VolumeId,
i_size_read(inode),
pFCB->XixcoreFcb.RealAllocationSize,
pFCB->XixcoreFcb.WriteStartOffset
);
pFCB->XixcoreFcb.WriteStartOffset = -1;
}
if (ret == 0)
ret = err;
return ret;
}
}else {
return -EPERM;
}
return ret;
}
#if LINUX_VERSION_25_ABOVE
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
ssize_t
xixfs_file_splice_read(
struct file *in,
loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len,
unsigned int flags
)
{
return generic_file_splice_read(in, ppos, pipe, len, flags);
}
ssize_t
xixfs_file_splice_write(
struct pipe_inode_info *pipe,
struct file *out,
loff_t *ppos,
size_t len,
unsigned int flags
)
{
ssize_t RC = 0;
int64 index = 0;
struct address_space *mapping = out->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_splice_write (%s).\n", out->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_file_splice_write : is read only .\n"));
return -EPERM;
}
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
index =(int64) (*ppos);
RC = generic_file_splice_write(pipe, out, ppos, len, flags);
if(RC > 0 ) {
if(pFCB->XixcoreFcb.WriteStartOffset == -1) {
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
if(pFCB->XixcoreFcb.WriteStartOffset > index ){
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev (%d).\n", RC));
return RC;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev ERROR.\n"));
return -EPERM;
}