/*
* This is called when a user changes the punctuation settings.
*/
static ssize_t punc_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
int x;
struct st_var_header *p_header;
struct punc_var_t *var;
char punc_buf[100];
unsigned long flags;
x = strlen(buf);
if (x < 1 || x > 99)
return -EINVAL;
p_header = var_header_by_name(attr->attr.name);
if (p_header == NULL) {
pr_warn("p_header is null, attr->attr.name is %s\n",
attr->attr.name);
return -EINVAL;
}
var = get_punc_var(p_header->var_id);
if (var == NULL) {
pr_warn("var is null, p_header->var_id is %i\n",
p_header->var_id);
return -EINVAL;
}
strncpy(punc_buf, buf, x);
while (x && punc_buf[x - 1] == '\n')
x--;
punc_buf[x] = '\0';
spk_lock(flags);
if (*punc_buf == 'd' || *punc_buf == 'r')
x = set_mask_bits(0, var->value, 3);
else
x = set_mask_bits(punc_buf, var->value, 3);
spk_unlock(flags);
return count;
}
void f2fs_set_inode_flags(struct inode *inode)
{
unsigned int flags = F2FS_I(inode)->i_flags;
unsigned int new_fl = 0;
if (flags & FS_SYNC_FL)
new_fl |= S_SYNC;
if (flags & FS_APPEND_FL)
new_fl |= S_APPEND;
if (flags & FS_IMMUTABLE_FL)
new_fl |= S_IMMUTABLE;
if (flags & FS_NOATIME_FL)
new_fl |= S_NOATIME;
if (flags & FS_DIRSYNC_FL)
new_fl |= S_DIRSYNC;
set_mask_bits(&inode->i_flags,
S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl);
}
/**
* nilfs_forget_buffer - discard dirty state
* @inode: owner inode of the buffer
* @bh: buffer head of the buffer to be discarded
*/
void nilfs_forget_buffer(struct buffer_head *bh)
{
struct page *page = bh->b_page;
const unsigned long clear_bits =
(BIT(BH_Uptodate) | BIT(BH_Dirty) | BIT(BH_Mapped) |
BIT(BH_Async_Write) | BIT(BH_NILFS_Volatile) |
BIT(BH_NILFS_Checked) | BIT(BH_NILFS_Redirected));
lock_buffer(bh);
set_mask_bits(&bh->b_state, clear_bits, 0);
if (nilfs_page_buffers_clean(page))
__nilfs_clear_page_dirty(page);
bh->b_blocknr = -1;
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
unlock_buffer(bh);
brelse(bh);
}
/**
* nilfs_clear_dirty_page - discard dirty page
* @page: dirty page that will be discarded
* @silent: suppress [true] or print [false] warning messages
*/
void nilfs_clear_dirty_page(struct page *page, bool silent)
{
struct inode *inode = page->mapping->host;
struct super_block *sb = inode->i_sb;
BUG_ON(!PageLocked(page));
if (!silent) {
nilfs_warning(sb, __func__,
"discard page: offset %lld, ino %lu",
page_offset(page), inode->i_ino);
}
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
if (page_has_buffers(page)) {
struct buffer_head *bh, *head;
const unsigned long clear_bits =
(1 << BH_Uptodate | 1 << BH_Dirty | 1 << BH_Mapped |
1 << BH_Async_Write | 1 << BH_NILFS_Volatile |
1 << BH_NILFS_Checked | 1 << BH_NILFS_Redirected);
bh = head = page_buffers(page);
do {
lock_buffer(bh);
if (!silent) {
nilfs_warning(sb, __func__,
"discard block %llu, size %zu",
(u64)bh->b_blocknr, bh->b_size);
}
set_mask_bits(&bh->b_state, clear_bits, 0);
unlock_buffer(bh);
} while (bh = bh->b_this_page, bh != head);
}
__nilfs_clear_page_dirty(page);
}
/**
* nilfs_clear_dirty_page - discard dirty page
* @page: dirty page that will be discarded
* @silent: suppress [true] or print [false] warning messages
*/
void nilfs_clear_dirty_page(struct page *page, bool silent)
{
struct inode *inode = page->mapping->host;
struct super_block *sb = inode->i_sb;
BUG_ON(!PageLocked(page));
if (!silent)
nilfs_msg(sb, KERN_WARNING,
"discard dirty page: offset=%lld, ino=%lu",
page_offset(page), inode->i_ino);
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
if (page_has_buffers(page)) {
struct buffer_head *bh, *head;
const unsigned long clear_bits =
(BIT(BH_Uptodate) | BIT(BH_Dirty) | BIT(BH_Mapped) |
BIT(BH_Async_Write) | BIT(BH_NILFS_Volatile) |
BIT(BH_NILFS_Checked) | BIT(BH_NILFS_Redirected));
bh = head = page_buffers(page);
do {
lock_buffer(bh);
if (!silent)
nilfs_msg(sb, KERN_WARNING,
"discard dirty block: blocknr=%llu, size=%zu",
(u64)bh->b_blocknr, bh->b_size);
set_mask_bits(&bh->b_state, clear_bits, 0);
unlock_buffer(bh);
} while (bh = bh->b_this_page, bh != head);
}
__nilfs_clear_page_dirty(page);
}
static void fuse_invalidate_attr_mask(struct inode *inode, u32 mask)
{
set_mask_bits(&get_fuse_inode(inode)->inval_mask, 0, mask);
}
