diff options
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 66 |
1 files changed, 58 insertions, 8 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 98dac27bc3f7..a6f3f6186588 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -241,6 +241,8 @@ go_write: * will be used only for fsynced inodes after checkpoint. */ try_to_fix_pino(inode); + clear_inode_flag(fi, FI_APPEND_WRITE); + clear_inode_flag(fi, FI_UPDATE_WRITE); goto out; } sync_nodes: @@ -433,8 +435,12 @@ int truncate_data_blocks_range(struct dnode_of_data *dn, int count) continue; dn->data_blkaddr = NULL_ADDR; - update_extent_cache(dn); + set_data_blkaddr(dn); + f2fs_update_extent_cache(dn); invalidate_blocks(sbi, blkaddr); + if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page)) + clear_inode_flag(F2FS_I(dn->inode), + FI_FIRST_BLOCK_WRITTEN); nr_free++; } if (nr_free) { @@ -454,15 +460,16 @@ void truncate_data_blocks(struct dnode_of_data *dn) truncate_data_blocks_range(dn, ADDRS_PER_BLOCK); } -static int truncate_partial_data_page(struct inode *inode, u64 from) +static int truncate_partial_data_page(struct inode *inode, u64 from, + bool force) { unsigned offset = from & (PAGE_CACHE_SIZE - 1); struct page *page; - if (!offset) + if (!offset && !force) return 0; - page = find_data_page(inode, from >> PAGE_CACHE_SHIFT, false); + page = find_data_page(inode, from >> PAGE_CACHE_SHIFT, force); if (IS_ERR(page)) return 0; @@ -473,7 +480,8 @@ static int truncate_partial_data_page(struct inode *inode, u64 from) f2fs_wait_on_page_writeback(page, DATA); zero_user(page, offset, PAGE_CACHE_SIZE - offset); - set_page_dirty(page); + if (!force) + set_page_dirty(page); out: f2fs_put_page(page, 1); return 0; @@ -487,6 +495,7 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock) pgoff_t free_from; int count = 0, err = 0; struct page *ipage; + bool truncate_page = false; trace_f2fs_truncate_blocks_enter(inode, from); @@ -502,7 +511,10 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock) } if (f2fs_has_inline_data(inode)) { + if (truncate_inline_inode(ipage, from)) + set_page_dirty(ipage); f2fs_put_page(ipage, 1); + truncate_page = true; goto out; } @@ -533,7 +545,7 @@ out: /* lastly zero out the first data page */ if (!err) - err = truncate_partial_data_page(inode, from); + err = truncate_partial_data_page(inode, from, truncate_page); trace_f2fs_truncate_blocks_exit(inode, err); return err; @@ -997,6 +1009,9 @@ static int f2fs_ioc_release_volatile_write(struct file *filp) if (!f2fs_is_volatile_file(inode)) return 0; + if (!f2fs_is_first_block_written(inode)) + return truncate_partial_data_page(inode, 0, true); + punch_hole(inode, 0, F2FS_BLKSIZE); return 0; } @@ -1029,6 +1044,41 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp) return ret; } +static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) +{ + struct inode *inode = file_inode(filp); + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + struct super_block *sb = sbi->sb; + __u32 in; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (get_user(in, (__u32 __user *)arg)) + return -EFAULT; + + switch (in) { + case F2FS_GOING_DOWN_FULLSYNC: + sb = freeze_bdev(sb->s_bdev); + if (sb && !IS_ERR(sb)) { + f2fs_stop_checkpoint(sbi); + thaw_bdev(sb->s_bdev, sb); + } + break; + case F2FS_GOING_DOWN_METASYNC: + /* do checkpoint only */ + f2fs_sync_fs(sb, 1); + f2fs_stop_checkpoint(sbi); + break; + case F2FS_GOING_DOWN_NOSYNC: + f2fs_stop_checkpoint(sbi); + break; + default: + return -EINVAL; + } + return 0; +} + static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -1078,6 +1128,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_ioc_release_volatile_write(filp); case F2FS_IOC_ABORT_VOLATILE_WRITE: return f2fs_ioc_abort_volatile_write(filp); + case F2FS_IOC_SHUTDOWN: + return f2fs_ioc_shutdown(filp, arg); case FITRIM: return f2fs_ioc_fitrim(filp, arg); default: @@ -1104,8 +1156,6 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) const struct file_operations f2fs_file_operations = { .llseek = f2fs_llseek, - .read = new_sync_read, - .write = new_sync_write, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .open = generic_file_open, |