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Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c58
1 files changed, 44 insertions, 14 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1cae864f8df..d2d2b7dbdcc 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;