dec_page_count(sbi, F2FS_WRITEBACK);
}
- if (sbi->wait_io) {
- complete(sbi->wait_io);
- sbi->wait_io = NULL;
- }
-
if (!get_pages(sbi, F2FS_WRITEBACK) &&
!list_empty(&sbi->cp_wait.task_list))
wake_up(&sbi->cp_wait);
bio = bio_alloc(GFP_NOIO, npages);
bio->bi_bdev = sbi->sb->s_bdev;
- bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
+ bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(blk_addr);
bio->bi_end_io = is_read ? f2fs_read_end_io : f2fs_write_end_io;
bio->bi_private = sbi;
static void __submit_merged_bio(struct f2fs_bio_info *io)
{
struct f2fs_io_info *fio = &io->fio;
- int rw;
if (!io->bio)
return;
- rw = fio->rw;
-
- if (is_read_io(rw)) {
- trace_f2fs_submit_read_bio(io->sbi->sb, rw,
- fio->type, io->bio);
- submit_bio(rw, io->bio);
- } else {
- trace_f2fs_submit_write_bio(io->sbi->sb, rw,
- fio->type, io->bio);
- /*
- * META_FLUSH is only from the checkpoint procedure, and we
- * should wait this metadata bio for FS consistency.
- */
- if (fio->type == META_FLUSH) {
- DECLARE_COMPLETION_ONSTACK(wait);
- io->sbi->wait_io = &wait;
- submit_bio(rw, io->bio);
- wait_for_completion(&wait);
- } else {
- submit_bio(rw, io->bio);
- }
- }
+ if (is_read_io(fio->rw))
+ trace_f2fs_submit_read_bio(io->sbi->sb, fio->rw,
+ fio->type, io->bio);
+ else
+ trace_f2fs_submit_write_bio(io->sbi->sb, fio->rw,
+ fio->type, io->bio);
+ submit_bio(fio->rw, io->bio);
io->bio = NULL;
}
__submit_merged_bio(io);
alloc_new:
if (io->bio == NULL) {
- int bio_blocks = MAX_BIO_BLOCKS(max_hw_blocks(sbi));
+ int bio_blocks = MAX_BIO_BLOCKS(sbi);
io->bio = __bio_alloc(sbi, blk_addr, bio_blocks, is_read);
io->fio = *fio;
int reserve_new_block(struct dnode_of_data *dn)
{
- struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)))
return -EPERM;
bool need_put = dn->inode_page ? false : true;
int err;
- /* if inode_page exists, index should be zero */
- f2fs_bug_on(!need_put && index);
-
err = get_dnode_of_data(dn, index, ALLOC_NODE);
if (err)
return err;
block_t start_blkaddr, end_blkaddr;
int need_update = true;
- f2fs_bug_on(blk_addr == NEW_ADDR);
+ f2fs_bug_on(F2FS_I_SB(dn->inode), blk_addr == NEW_ADDR);
fofs = start_bidx_of_node(ofs_of_node(dn->node_page), fi) +
dn->ofs_in_node;
struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
struct page *page;
return page;
}
- err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
+ err = f2fs_submit_page_bio(F2FS_I_SB(inode), page, dn.data_blkaddr,
sync ? READ_SYNC : READA);
if (err)
return ERR_PTR(err);
*/
struct page *get_lock_data_page(struct inode *inode, pgoff_t index)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
struct page *page;
return page;
}
- err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr, READ_SYNC);
+ err = f2fs_submit_page_bio(F2FS_I_SB(inode), page,
+ dn.data_blkaddr, READ_SYNC);
if (err)
return ERR_PTR(err);
struct page *get_new_data_page(struct inode *inode,
struct page *ipage, pgoff_t index, bool new_i_size)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
struct page *page;
struct dnode_of_data dn;
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
SetPageUptodate(page);
} else {
- err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
- READ_SYNC);
+ err = f2fs_submit_page_bio(F2FS_I_SB(inode), page,
+ dn.data_blkaddr, READ_SYNC);
if (err)
goto put_err;
static int __allocate_data_block(struct dnode_of_data *dn)
{
- struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
+ struct f2fs_inode_info *fi = F2FS_I(dn->inode);
struct f2fs_summary sum;
block_t new_blkaddr;
struct node_info ni;
+ pgoff_t fofs;
int type;
if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)))
update_extent_cache(new_blkaddr, dn);
clear_inode_flag(F2FS_I(dn->inode), FI_NO_EXTENT);
+ /* update i_size */
+ fofs = start_bidx_of_node(ofs_of_node(dn->node_page), fi) +
+ dn->ofs_in_node;
+ if (i_size_read(dn->inode) < ((fofs + 1) << PAGE_CACHE_SHIFT))
+ i_size_write(dn->inode, ((fofs + 1) << PAGE_CACHE_SHIFT));
+
dn->data_blkaddr = new_blkaddr;
return 0;
}
static int __get_data_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create, bool fiemap)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
unsigned int blkbits = inode->i_sb->s_blocksize_bits;
unsigned maxblocks = bh_result->b_size >> blkbits;
struct dnode_of_data dn;
goto out;
if (create) {
- f2fs_balance_fs(sbi);
- f2fs_lock_op(sbi);
+ f2fs_balance_fs(F2FS_I_SB(inode));
+ f2fs_lock_op(F2FS_I_SB(inode));
}
/* When reading holes, we need its node page */
f2fs_put_dnode(&dn);
unlock_out:
if (create)
- f2fs_unlock_op(sbi);
+ f2fs_unlock_op(F2FS_I_SB(inode));
out:
trace_f2fs_get_data_block(inode, iblock, bh_result, err);
return err;
static int f2fs_read_data_page(struct file *file, struct page *page)
{
struct inode *inode = page->mapping->host;
- int ret;
+ int ret = -EAGAIN;
trace_f2fs_readpage(page, DATA);
/* If the file has inline data, try to read it directly */
if (f2fs_has_inline_data(inode))
ret = f2fs_read_inline_data(inode, page);
- else
+ if (ret == -EAGAIN)
ret = mpage_readpage(page, get_data_block);
return ret;
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
loff_t i_size = i_size_read(inode);
const pgoff_t end_index = ((unsigned long long) i_size)
>> PAGE_CACHE_SHIFT;
if (unlikely(f2fs_cp_error(sbi))) {
SetPageError(page);
unlock_page(page);
- return 0;
+ goto out;
}
if (!wbc->for_reclaim)
else if (has_not_enough_free_secs(sbi, 0))
goto redirty_out;
+ err = -EAGAIN;
f2fs_lock_op(sbi);
- if (f2fs_has_inline_data(inode) || f2fs_may_inline(inode))
- err = f2fs_write_inline_data(inode, page, offset);
- else
+ if (f2fs_has_inline_data(inode))
+ err = f2fs_write_inline_data(inode, page);
+ if (err == -EAGAIN)
err = do_write_data_page(page, &fio);
f2fs_unlock_op(sbi);
done:
clear_cold_data(page);
out:
- inode_dec_dirty_dents(inode);
+ inode_dec_dirty_pages(inode);
unlock_page(page);
if (need_balance_fs)
f2fs_balance_fs(sbi);
struct writeback_control *wbc)
{
struct inode *inode = mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bool locked = false;
int ret;
long diff;
return 0;
if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE &&
- get_dirty_dents(inode) < nr_pages_to_skip(sbi, DATA) &&
+ get_dirty_pages(inode) < nr_pages_to_skip(sbi, DATA) &&
available_free_memory(sbi, DIRTY_DENTS))
goto skip_write;
return ret;
skip_write:
- wbc->pages_skipped += get_dirty_dents(inode);
+ wbc->pages_skipped += get_dirty_pages(inode);
return 0;
}
struct page **pagep, void **fsdata)
{
struct inode *inode = mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- struct page *page;
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct page *page, *ipage;
pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
struct dnode_of_data dn;
int err = 0;
trace_f2fs_write_begin(inode, pos, len, flags);
f2fs_balance_fs(sbi);
-repeat:
- err = f2fs_convert_inline_data(inode, pos + len, NULL);
- if (err)
- goto fail;
+ /*
+ * We should check this at this moment to avoid deadlock on inode page
+ * and #0 page. The locking rule for inline_data conversion should be:
+ * lock_page(page #0) -> lock_page(inode_page)
+ */
+ if (index != 0) {
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ goto fail;
+ }
+repeat:
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page) {
err = -ENOMEM;
goto fail;
}
- /* to avoid latency during memory pressure */
- unlock_page(page);
-
*pagep = page;
- if (f2fs_has_inline_data(inode) && (pos + len) <= MAX_INLINE_DATA)
- goto inline_data;
-
f2fs_lock_op(sbi);
- set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = f2fs_reserve_block(&dn, index);
- f2fs_unlock_op(sbi);
- if (err) {
- f2fs_put_page(page, 0);
- goto fail;
- }
-inline_data:
- lock_page(page);
- if (unlikely(page->mapping != mapping)) {
- f2fs_put_page(page, 1);
- goto repeat;
+
+ /* check inline_data */
+ ipage = get_node_page(sbi, inode->i_ino);
+ if (IS_ERR(ipage)) {
+ err = PTR_ERR(ipage);
+ goto unlock_fail;
}
- f2fs_wait_on_page_writeback(page, DATA);
+ set_new_dnode(&dn, inode, ipage, ipage, 0);
+
+ if (f2fs_has_inline_data(inode)) {
+ if (pos + len <= MAX_INLINE_DATA) {
+ read_inline_data(page, ipage);
+ set_inode_flag(F2FS_I(inode), FI_DATA_EXIST);
+ sync_inode_page(&dn);
+ goto put_next;
+ }
+ err = f2fs_convert_inline_page(&dn, page);
+ if (err)
+ goto put_fail;
+ }
+ err = f2fs_reserve_block(&dn, index);
+ if (err)
+ goto put_fail;
+put_next:
+ f2fs_put_dnode(&dn);
+ f2fs_unlock_op(sbi);
if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))
return 0;
+ f2fs_wait_on_page_writeback(page, DATA);
+
if ((pos & PAGE_CACHE_MASK) >= i_size_read(inode)) {
unsigned start = pos & (PAGE_CACHE_SIZE - 1);
unsigned end = start + len;
if (dn.data_blkaddr == NEW_ADDR) {
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
} else {
- if (f2fs_has_inline_data(inode)) {
- err = f2fs_read_inline_data(inode, page);
- if (err) {
- page_cache_release(page);
- goto fail;
- }
- } else {
- err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
- READ_SYNC);
- if (err)
- goto fail;
- }
+ err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
+ READ_SYNC);
+ if (err)
+ goto fail;
lock_page(page);
if (unlikely(!PageUptodate(page))) {
SetPageUptodate(page);
clear_cold_data(page);
return 0;
+
+put_fail:
+ f2fs_put_dnode(&dn);
+unlock_fail:
+ f2fs_unlock_op(sbi);
+ f2fs_put_page(page, 1);
fail:
f2fs_write_failed(mapping, pos + len);
return err;
size_t count = iov_iter_count(iter);
int err;
- /* Let buffer I/O handle the inline data case. */
- if (f2fs_has_inline_data(inode))
- return 0;
+ /* we don't need to use inline_data strictly */
+ if (f2fs_has_inline_data(inode)) {
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+ }
if (check_direct_IO(inode, rw, iter, offset))
return 0;
- /* clear fsync mark to recover these blocks */
- fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
-
trace_f2fs_direct_IO_enter(inode, offset, count, rw);
err = blockdev_direct_IO(rw, iocb, inode, iter, offset, get_data_block);
unsigned int length)
{
struct inode *inode = page->mapping->host;
+
+ if (offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE)
+ return;
+
+ if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode))
+ invalidate_inmem_page(inode, page);
+
if (PageDirty(page))
- inode_dec_dirty_dents(inode);
+ inode_dec_dirty_pages(inode);
ClearPagePrivate(page);
}
trace_f2fs_set_page_dirty(page, DATA);
SetPageUptodate(page);
+
+ if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode)) {
+ register_inmem_page(inode, page);
+ return 1;
+ }
+
mark_inode_dirty(inode);
if (!PageDirty(page)) {
__set_page_dirty_nobuffers(page);
- set_dirty_dir_page(inode, page);
+ update_dirty_page(inode, page);
return 1;
}
return 0;
{
struct inode *inode = mapping->host;
- if (f2fs_has_inline_data(inode))
- return 0;
-
+ /* we don't need to use inline_data strictly */
+ if (f2fs_has_inline_data(inode)) {
+ int err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+ }
return generic_block_bmap(mapping, block, get_data_block);
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff