diff options
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index e755ee57e042..a9474cd4e0db 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -111,6 +111,7 @@ static int get_parent_ino(struct inode *inode, nid_t *pino) int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; + struct f2fs_inode_info *fi = F2FS_I(inode); struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); int ret = 0; bool need_cp = false; @@ -133,7 +134,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) /* guarantee free sections for fsync */ f2fs_balance_fs(sbi); - mutex_lock(&inode->i_mutex); + down_read(&fi->i_sem); /* * Both of fdatasync() and fsync() are able to be recovered from @@ -150,21 +151,27 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi))) need_cp = true; + up_read(&fi->i_sem); + if (need_cp) { nid_t pino; - F2FS_I(inode)->xattr_ver = 0; - /* all the dirty node pages should be flushed for POR */ ret = f2fs_sync_fs(inode->i_sb, 1); + + down_write(&fi->i_sem); + F2FS_I(inode)->xattr_ver = 0; if (file_wrong_pino(inode) && inode->i_nlink == 1 && get_parent_ino(inode, &pino)) { F2FS_I(inode)->i_pino = pino; file_got_pino(inode); + up_write(&fi->i_sem); mark_inode_dirty_sync(inode); ret = f2fs_write_inode(inode, NULL); if (ret) goto out; + } else { + up_write(&fi->i_sem); } } else { /* if there is no written node page, write its inode page */ @@ -180,7 +187,6 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); } out: - mutex_unlock(&inode->i_mutex); trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); return ret; } |