mirror of https://gitee.com/openkylin/linux.git
f2fs: issue cache flush on direct IO
Under direct IO path with O_(D)SYNC, it needs to set proper APPEND or UPDATE flags, so taht f2fs_sync_file can make its data safe. Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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@ -673,6 +673,9 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
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err = reserve_new_block(&dn);
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err = reserve_new_block(&dn);
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} else {
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} else {
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err = __allocate_data_block(&dn);
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err = __allocate_data_block(&dn);
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if (!err)
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set_inode_flag(F2FS_I(inode),
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FI_APPEND_WRITE);
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}
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}
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if (err)
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if (err)
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goto sync_out;
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goto sync_out;
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@ -1685,8 +1688,12 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
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trace_f2fs_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));
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trace_f2fs_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));
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err = blockdev_direct_IO(iocb, inode, iter, offset, get_data_block_dio);
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err = blockdev_direct_IO(iocb, inode, iter, offset, get_data_block_dio);
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if (err < 0 && iov_iter_rw(iter) == WRITE)
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if (iov_iter_rw(iter) == WRITE) {
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f2fs_write_failed(mapping, offset + count);
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if (err > 0)
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set_inode_flag(F2FS_I(inode), FI_UPDATE_WRITE);
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else if (err < 0)
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f2fs_write_failed(mapping, offset + count);
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}
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trace_f2fs_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), err);
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trace_f2fs_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), err);
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