diff options
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 58 |
1 files changed, 44 insertions, 14 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 1cae864f8dfc..d2d2b7dbdcc1 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -63,9 +63,10 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma, f2fs_put_dnode(&dn); mutex_unlock_op(sbi, ilock); + file_update_time(vma->vm_file); lock_page(page); if (page->mapping != inode->i_mapping || - page_offset(page) >= i_size_read(inode) || + page_offset(page) > i_size_read(inode) || !PageUptodate(page)) { unlock_page(page); err = -EFAULT; @@ -76,10 +77,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma, * check to see if the page is mapped already (no holes) */ if (PageMappedToDisk(page)) - goto out; - - /* fill the page */ - wait_on_page_writeback(page); + goto mapped; /* page is wholly or partially inside EOF */ if (((page->index + 1) << PAGE_CACHE_SHIFT) > i_size_read(inode)) { @@ -90,7 +88,9 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma, set_page_dirty(page); SetPageUptodate(page); - file_update_time(vma->vm_file); +mapped: + /* fill the page */ + wait_on_page_writeback(page); out: sb_end_pagefault(inode->i_sb); return block_page_mkwrite_return(err); @@ -102,6 +102,24 @@ static const struct vm_operations_struct f2fs_file_vm_ops = { .remap_pages = generic_file_remap_pages, }; +static int get_parent_ino(struct inode *inode, nid_t *pino) +{ + struct dentry *dentry; + + inode = igrab(inode); + dentry = d_find_any_alias(inode); + iput(inode); + if (!dentry) + return 0; + + inode = igrab(dentry->d_parent->d_inode); + dput(dentry); + + *pino = inode->i_ino; + iput(inode); + return 1; +} + int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; @@ -114,7 +132,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) .for_reclaim = 0, }; - if (inode->i_sb->s_flags & MS_RDONLY) + if (f2fs_readonly(inode->i_sb)) return 0; trace_f2fs_sync_file_enter(inode); @@ -134,7 +152,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1) need_cp = true; - else if (is_cp_file(inode)) + else if (file_wrong_pino(inode)) need_cp = true; else if (!space_for_roll_forward(sbi)) need_cp = true; @@ -142,11 +160,23 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) need_cp = true; if (need_cp) { + nid_t pino; + /* all the dirty node pages should be flushed for POR */ ret = f2fs_sync_fs(inode->i_sb, 1); + if (file_wrong_pino(inode) && inode->i_nlink == 1 && + get_parent_ino(inode, &pino)) { + F2FS_I(inode)->i_pino = pino; + file_got_pino(inode); + mark_inode_dirty_sync(inode); + ret = f2fs_write_inode(inode, NULL); + if (ret) + goto out; + } } else { /* if there is no written node page, write its inode page */ while (!sync_node_pages(sbi, inode->i_ino, &wbc)) { + mark_inode_dirty_sync(inode); ret = f2fs_write_inode(inode, NULL); if (ret) goto out; @@ -168,7 +198,7 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) return 0; } -static int truncate_data_blocks_range(struct dnode_of_data *dn, int count) +int truncate_data_blocks_range(struct dnode_of_data *dn, int count) { int nr_free = 0, ofs = dn->ofs_in_node; struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb); @@ -185,10 +215,10 @@ static int truncate_data_blocks_range(struct dnode_of_data *dn, int count) update_extent_cache(NULL_ADDR, dn); invalidate_blocks(sbi, blkaddr); - dec_valid_block_count(sbi, dn->inode, 1); nr_free++; } if (nr_free) { + dec_valid_block_count(sbi, dn->inode, nr_free); set_page_dirty(dn->node_page); sync_inode_page(dn); } @@ -291,7 +321,7 @@ void f2fs_truncate(struct inode *inode) } } -static int f2fs_getattr(struct vfsmount *mnt, +int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { struct inode *inode = dentry->d_inode; @@ -387,7 +417,7 @@ static void fill_zero(struct inode *inode, pgoff_t index, f2fs_balance_fs(sbi); ilock = mutex_lock_op(sbi); - page = get_new_data_page(inode, index, false); + page = get_new_data_page(inode, NULL, index, false); mutex_unlock_op(sbi, ilock); if (!IS_ERR(page)) { @@ -575,10 +605,10 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) int ret; switch (cmd) { - case FS_IOC_GETFLAGS: + case F2FS_IOC_GETFLAGS: flags = fi->i_flags & FS_FL_USER_VISIBLE; return put_user(flags, (int __user *) arg); - case FS_IOC_SETFLAGS: + case F2FS_IOC_SETFLAGS: { unsigned int oldflags; |