Re: [PATCH 30/49] ext4: Convert truncate_mutex to read write semaphore.

Andrew Morton
2008-01-23T22:06:59Z

> On Mon, 21 Jan 2008 22:02:09 -0500 "Theodore Ts'o" <tytso@MIT.EDU> wrote:
> +int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
> + unsigned long max_blocks, struct buffer_head *bh,
> + int create, int extend_disksize)
> +{
> + int retval;
> + if (create) {
> + down_write((&EXT4_I(inode)->i_data_sem));
> + } else {
> + down_read((&EXT4_I(inode)->i_data_sem));
> + }
> + if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
> + retval = ext4_ext_get_blocks(handle, inode, block, max_blocks,
> + bh, create, extend_disksize);
> + } else {
> + retval = ext4_get_blocks_handle(handle, inode, block,
> + max_blocks, bh, create, extend_disksize);
> + }
> + if (create) {
> + up_write((&EXT4_I(inode)->i_data_sem));
> + } else {
> + up_read((&EXT4_I(inode)->i_data_sem));
> + }

This function has many unneeded braces. checkpatch used to detect this
but it seems to have broken.

> + return retval;
> +}
> static int ext4_get_block(struct inode *inode, sector_t iblock,
> struct buffer_head *bh_result, int create)

Mising newline.