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Message-Id: <1240254435.7068.43.camel@norville.austin.ibm.com>
Date: Mon, 20 Apr 2009 14:07:15 -0500
From: Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
To: Marcin Slusarz <marcin.slusarz@...il.com>
Cc: linux-fsdevel <linux-fsdevel@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] filesystems: start using roundup_to_blocksize and
bytes_to_blocks
Looks good from a jfs perspective. Really cleans up that code.
On Sun, 2009-04-19 at 20:51 +0200, Marcin Slusarz wrote:
> Signed-off-by: Marcin Slusarz <marcin.slusarz@...il.com>
Signed-off-by: Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
> ---
> If requested I can create one patch per filesystem, but it would be easier
> if the first patch could be applied to 2.6.30.
If the first patch goes in by itself, I'd be happy to break out and push
the jfs piece.
Thanks,
Shaggy
> ---
> fs/adfs/inode.c | 3 +-
> fs/btrfs/extent_io.c | 10 ++----
> fs/btrfs/ioctl.c | 2 +-
> fs/fat/cache.c | 7 +---
> fs/hfs/extent.c | 2 +-
> fs/hfs/inode.c | 2 +-
> fs/hfsplus/extents.c | 2 +-
> fs/hfsplus/inode.c | 2 +-
> fs/jfs/xattr.c | 25 +++++-----------
> fs/minix/itree_common.c | 2 +-
> fs/nfs/super.c | 10 ++----
> fs/nilfs2/inode.c | 4 +--
> fs/ntfs/aops.c | 6 ++--
> fs/ocfs2/namei.c | 2 +-
> fs/reiserfs/inode.c | 5 +--
> fs/sysv/itree.c | 7 +---
> fs/udf/inode.c | 74 ++++++++++++++++++++--------------------------
> fs/udf/namei.c | 2 +-
> fs/udf/truncate.c | 9 ++----
> 19 files changed, 67 insertions(+), 109 deletions(-)
>
> diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
> index e647200..8baec96 100644
> --- a/fs/adfs/inode.c
> +++ b/fs/adfs/inode.c
> @@ -273,8 +273,7 @@ adfs_iget(struct super_block *sb, struct object_info *obj)
> inode->i_ino = obj->file_id;
> inode->i_size = obj->size;
> inode->i_nlink = 2;
> - inode->i_blocks = (inode->i_size + sb->s_blocksize - 1) >>
> - sb->s_blocksize_bits;
> + inode->i_blocks = bytes_to_blocks(inode->i_size, sb);
>
> /*
> * we need to save the parent directory ID so that
> diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
> index eb2bee8..582bf76 100644
> --- a/fs/btrfs/extent_io.c
> +++ b/fs/btrfs/extent_io.c
> @@ -1959,7 +1959,6 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
> size_t page_offset = 0;
> size_t iosize;
> size_t disk_io_size;
> - size_t blocksize = inode->i_sb->s_blocksize;
> unsigned long this_bio_flag = 0;
>
> set_page_extent_mapped(page);
> @@ -2008,7 +2007,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
>
> iosize = min(extent_map_end(em) - cur, end - cur + 1);
> cur_end = min(extent_map_end(em) - 1, end);
> - iosize = (iosize + blocksize - 1) & ~((u64)blocksize - 1);
> + iosize = roundup_to_blocksize(iosize, inode->i_sb);
> if (this_bio_flag & EXTENT_BIO_COMPRESSED) {
> disk_io_size = em->block_len;
> sector = em->block_start >> 9;
> @@ -2129,7 +2128,6 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
> int ret;
> int nr = 0;
> size_t pg_offset = 0;
> - size_t blocksize;
> loff_t i_size = i_size_read(inode);
> unsigned long end_index = i_size >> PAGE_CACHE_SHIFT;
> u64 nr_delalloc;
> @@ -2221,7 +2219,6 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
> }
>
> set_extent_uptodate(tree, start, page_end, GFP_NOFS);
> - blocksize = inode->i_sb->s_blocksize;
>
> while (cur <= end) {
> if (cur >= last_byte) {
> @@ -2244,7 +2241,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
> BUG_ON(extent_map_end(em) <= cur);
> BUG_ON(end < cur);
> iosize = min(extent_map_end(em) - cur, end - cur + 1);
> - iosize = (iosize + blocksize - 1) & ~((u64)blocksize - 1);
> + iosize = roundup_to_blocksize(iosize, inode->i_sb);
> sector = (em->block_start + extent_offset) >> 9;
> bdev = em->bdev;
> block_start = em->block_start;
> @@ -2616,9 +2613,8 @@ int extent_invalidatepage(struct extent_io_tree *tree,
> {
> u64 start = ((u64)page->index << PAGE_CACHE_SHIFT);
> u64 end = start + PAGE_CACHE_SIZE - 1;
> - size_t blocksize = page->mapping->host->i_sb->s_blocksize;
>
> - start += (offset + blocksize - 1) & ~(blocksize - 1);
> + start += roundup_to_blocksize(offset, page->mapping->host->i_sb);
> if (start > end)
> return 0;
>
> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
> index 7594bec..1eeedbe 100644
> --- a/fs/btrfs/ioctl.c
> +++ b/fs/btrfs/ioctl.c
> @@ -804,7 +804,7 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
> olen = len = src->i_size - off;
> /* if we extend to eof, continue to block boundary */
> if (off + len == src->i_size)
> - len = ((src->i_size + bs-1) & ~(bs-1))
> + len = roundup_to_blocksize(src->i_size, root->fs_info->sb)
> - off;
>
> /* verify the end result is block aligned */
> diff --git a/fs/fat/cache.c b/fs/fat/cache.c
> index b426022..93fe0ce 100644
> --- a/fs/fat/cache.c
> +++ b/fs/fat/cache.c
> @@ -297,8 +297,6 @@ int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
> {
> struct super_block *sb = inode->i_sb;
> struct msdos_sb_info *sbi = MSDOS_SB(sb);
> - const unsigned long blocksize = sb->s_blocksize;
> - const unsigned char blocksize_bits = sb->s_blocksize_bits;
> sector_t last_block;
> int cluster, offset;
>
> @@ -312,7 +310,7 @@ int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
> return 0;
> }
>
> - last_block = (i_size_read(inode) + (blocksize - 1)) >> blocksize_bits;
> + last_block = bytes_to_blocks(i_size_read(inode), inode->i_sb);
> if (sector >= last_block) {
> if (!create)
> return 0;
> @@ -321,8 +319,7 @@ int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
> * ->mmu_private can access on only allocation path.
> * (caller must hold ->i_mutex)
> */
> - last_block = (MSDOS_I(inode)->mmu_private + (blocksize - 1))
> - >> blocksize_bits;
> + last_block = bytes_to_blocks(MSDOS_I(inode)->mmu_private, inode->i_sb);
> if (sector >= last_block)
> return 0;
> }
> diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
> index 2c16316..6b0860d 100644
> --- a/fs/hfs/extent.c
> +++ b/fs/hfs/extent.c
> @@ -519,7 +519,7 @@ void hfs_file_truncate(struct inode *inode)
> HFS_I(inode)->alloc_blocks = blk_cnt;
> out:
> HFS_I(inode)->phys_size = inode->i_size;
> - HFS_I(inode)->fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
> + HFS_I(inode)->fs_blocks = bytes_to_blocks(inode->i_size, sb);
> inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
> mark_inode_dirty(inode);
> }
> diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
> index a1cbff2..25b1e2a 100644
> --- a/fs/hfs/inode.c
> +++ b/fs/hfs/inode.c
> @@ -243,7 +243,7 @@ void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
> HFS_I(inode)->first_blocks = count;
>
> inode->i_size = HFS_I(inode)->phys_size = log_size;
> - HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
> + HFS_I(inode)->fs_blocks = bytes_to_blocks(log_size, sb);
> inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
> HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
> HFS_SB(sb)->alloc_blksz;
> diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
> index 0022eec..9245716 100644
> --- a/fs/hfsplus/extents.c
> +++ b/fs/hfsplus/extents.c
> @@ -500,7 +500,7 @@ void hfsplus_file_truncate(struct inode *inode)
> HFSPLUS_I(inode).alloc_blocks = blk_cnt;
> out:
> HFSPLUS_I(inode).phys_size = inode->i_size;
> - HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
> + HFSPLUS_I(inode).fs_blocks = bytes_to_blocks(inode->i_size, sb);
> inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
> mark_inode_dirty(inode);
> }
> diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
> index 1bcf597..0c95bd5 100644
> --- a/fs/hfsplus/inode.c
> +++ b/fs/hfsplus/inode.c
> @@ -377,7 +377,7 @@ void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
>
> HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
> inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
> - HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
> + HFSPLUS_I(inode).fs_blocks = bytes_to_blocks(inode->i_size, sb);
> inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
> HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
> if (!HFSPLUS_I(inode).clump_blocks)
> diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
> index 61dfa81..59aefb1 100644
> --- a/fs/jfs/xattr.c
> +++ b/fs/jfs/xattr.c
> @@ -257,7 +257,7 @@ static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
> }
>
> /* figure out how many blocks we need */
> - nblocks = (size + (sb->s_blocksize - 1)) >> sb->s_blocksize_bits;
> + nblocks = bytes_to_blocks(size, sb);
>
> /* Allocate new blocks to quota. */
> if (vfs_dq_alloc_block(ip, nblocks)) {
> @@ -284,9 +284,7 @@ static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
> * the nearest aggregate block size
> */
> nb = min(PSIZE, nbytes);
> - bytes_to_write =
> - ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits))
> - << sb->s_blocksize_bits;
> + bytes_to_write = roundup_to_blocksize(nb, sb);
>
> if (!(mp = get_metapage(ip, blkno + i, bytes_to_write, 1))) {
> rc = -EIO;
> @@ -424,9 +422,7 @@ static int ea_read(struct inode *ip, struct jfs_ea_list *ealist)
> * the nearest aggregate block size
> */
> nb = min(PSIZE, nbytes);
> - bytes_to_read =
> - ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits))
> - << sb->s_blocksize_bits;
> + bytes_to_read = roundup_to_blocksize(nb, sb);
>
> if (!(mp = read_metapage(ip, blkno + i, bytes_to_read, 1)))
> return -EIO;
> @@ -505,8 +501,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
> jfs_error(sb, "ea_get: invalid ea.flag)");
> return -EIO;
> }
> - current_blocks = (ea_size + sb->s_blocksize - 1) >>
> - sb->s_blocksize_bits;
> + current_blocks = bytes_to_blocks(ea_size, sb);
> }
> size = max(min_size, ea_size);
>
> @@ -520,8 +515,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
> return -ENOMEM;
>
> ea_buf->flag = EA_MALLOC;
> - ea_buf->max_size = (size + sb->s_blocksize - 1) &
> - ~(sb->s_blocksize - 1);
> + ea_buf->max_size = roundup_to_blocksize(size, sb);
>
> if (ea_size == 0)
> return 0;
> @@ -533,8 +527,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
> }
> goto size_check;
> }
> - blocks_needed = (min_size + sb->s_blocksize - 1) >>
> - sb->s_blocksize_bits;
> + blocks_needed = bytes_to_blocks(min_size, sb);
>
> if (blocks_needed > current_blocks) {
> /* Allocate new blocks to quota. */
> @@ -564,8 +557,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
> goto clean_up;
> }
> ea_buf->xattr = ea_buf->mp->data;
> - ea_buf->max_size = (min_size + sb->s_blocksize - 1) &
> - ~(sb->s_blocksize - 1);
> + ea_buf->max_size = roundup_to_blocksize(min_size, sb);
> if (ea_size == 0)
> return 0;
> if ((rc = ea_read(inode, ea_buf->xattr))) {
> @@ -584,8 +576,7 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
> goto clean_up;
> }
> ea_buf->xattr = ea_buf->mp->data;
> - ea_buf->max_size = (ea_size + sb->s_blocksize - 1) &
> - ~(sb->s_blocksize - 1);
> + ea_buf->max_size = roundup_to_blocksize(ea_size, sb);
>
> size_check:
> if (EALIST_SIZE(ea_buf->xattr) != ea_size) {
> diff --git a/fs/minix/itree_common.c b/fs/minix/itree_common.c
> index a731cab..52832b4 100644
> --- a/fs/minix/itree_common.c
> +++ b/fs/minix/itree_common.c
> @@ -302,7 +302,7 @@ static inline void truncate (struct inode * inode)
> int first_whole;
> long iblock;
>
> - iblock = (inode->i_size + sb->s_blocksize -1) >> sb->s_blocksize_bits;
> + iblock = bytes_to_blocks(inode->i_size, sb);
> block_truncate_page(inode->i_mapping, inode->i_size, get_block);
>
> n = block_to_path(inode, iblock, offsets);
> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
> index 6717200..b9be272 100644
> --- a/fs/nfs/super.c
> +++ b/fs/nfs/super.c
> @@ -385,8 +385,6 @@ void nfs_sb_deactive(struct super_block *sb)
> static int nfs_statfs(struct dentry *dentry, struct kstatfs *buf)
> {
> struct nfs_server *server = NFS_SB(dentry->d_sb);
> - unsigned char blockbits;
> - unsigned long blockres;
> struct nfs_fh *fh = NFS_FH(dentry->d_inode);
> struct nfs_fattr fattr;
> struct nfs_fsstat res = {
> @@ -414,11 +412,9 @@ static int nfs_statfs(struct dentry *dentry, struct kstatfs *buf)
> * fields in units of f_bsize.
> */
> buf->f_bsize = dentry->d_sb->s_blocksize;
> - blockbits = dentry->d_sb->s_blocksize_bits;
> - blockres = (1 << blockbits) - 1;
> - buf->f_blocks = (res.tbytes + blockres) >> blockbits;
> - buf->f_bfree = (res.fbytes + blockres) >> blockbits;
> - buf->f_bavail = (res.abytes + blockres) >> blockbits;
> + buf->f_blocks = roundup_to_blocksize(res.tbytes, dentry->d_sb);
> + buf->f_bfree = roundup_to_blocksize(res.fbytes, dentry->d_sb);
> + buf->f_bavail = roundup_to_blocksize(res.abytes, dentry->d_sb);
>
> buf->f_files = res.tfiles;
> buf->f_ffree = res.afiles;
> diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
> index 49ab4a4..0fae142 100644
> --- a/fs/nilfs2/inode.c
> +++ b/fs/nilfs2/inode.c
> @@ -581,7 +581,6 @@ static void nilfs_truncate_bmap(struct nilfs_inode_info *ii,
> void nilfs_truncate(struct inode *inode)
> {
> unsigned long blkoff;
> - unsigned int blocksize;
> struct nilfs_transaction_info ti;
> struct super_block *sb = inode->i_sb;
> struct nilfs_inode_info *ii = NILFS_I(inode);
> @@ -591,8 +590,7 @@ void nilfs_truncate(struct inode *inode)
> if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
> return;
>
> - blocksize = sb->s_blocksize;
> - blkoff = (inode->i_size + blocksize - 1) >> sb->s_blocksize_bits;
> + blkoff = bytes_to_blocks(inode->i_size, sb);
> nilfs_transaction_begin(sb, &ti, 0); /* never fails */
>
> block_truncate_page(inode->i_mapping, inode->i_size, nilfs_get_block);
> diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
> index b38f944..3316812 100644
> --- a/fs/ntfs/aops.c
> +++ b/fs/ntfs/aops.c
> @@ -231,7 +231,7 @@ static int ntfs_read_block(struct page *page)
> */
> iblock = (s64)page->index << (PAGE_CACHE_SHIFT - blocksize_bits);
> read_lock_irqsave(&ni->size_lock, flags);
> - lblock = (ni->allocated_size + blocksize - 1) >> blocksize_bits;
> + lblock = bytes_to_blocks(ni->allocated_size, vol->sb);
> init_size = ni->initialized_size;
> i_size = i_size_read(vi);
> read_unlock_irqrestore(&ni->size_lock, flags);
> @@ -239,7 +239,7 @@ static int ntfs_read_block(struct page *page)
> /* Race with shrinking truncate. */
> init_size = i_size;
> }
> - zblock = (init_size + blocksize - 1) >> blocksize_bits;
> + zblock = bytes_to_blocks(init_size, vol->sb);
>
> /* Loop through all the buffers in the page. */
> rl = NULL;
> @@ -970,7 +970,7 @@ static int ntfs_write_mst_block(struct page *page,
> (PAGE_CACHE_SHIFT - bh_size_bits);
>
> /* The first out of bounds block for the data size. */
> - dblock = (i_size_read(vi) + bh_size - 1) >> bh_size_bits;
> + dblock = bytes_to_blocks(i_size_read(vi), vol->sb);
>
> rl = NULL;
> err = err2 = nr_bhs = nr_recs = nr_locked_nis = 0;
> diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
> index 2220f93..51ca438 100644
> --- a/fs/ocfs2/namei.c
> +++ b/fs/ocfs2/namei.c
> @@ -1481,7 +1481,7 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
> bytes_left = i_size_read(inode) + 1;
> /* we can't trust i_blocks because we're actually going to
> * write i_size + 1 bytes. */
> - blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
> + blocks = bytes_to_blocks(bytes_left, sb);
>
> mlog_entry("i_blocks = %llu, i_size = %llu, blocks = %d\n",
> (unsigned long long)inode->i_blocks,
> diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
> index 6fd0f47..6f1616f 100644
> --- a/fs/reiserfs/inode.c
> +++ b/fs/reiserfs/inode.c
> @@ -1053,7 +1053,6 @@ reiserfs_readpages(struct file *file, struct address_space *mapping,
> static int real_space_diff(struct inode *inode, int sd_size)
> {
> int bytes;
> - loff_t blocksize = inode->i_sb->s_blocksize;
>
> if (S_ISLNK(inode->i_mode) || S_ISDIR(inode->i_mode))
> return sd_size;
> @@ -1066,9 +1065,7 @@ static int real_space_diff(struct inode *inode, int sd_size)
> ** tail, we add 4 bytes to pretend there really is an unformatted
> ** node pointer
> */
> - bytes =
> - ((inode->i_size +
> - (blocksize - 1)) >> inode->i_sb->s_blocksize_bits) * UNFM_P_SIZE +
> + bytes = bytes_to_blocks(inode->i_size, inode->i_sb) * UNFM_P_SIZE +
> sd_size;
> return bytes;
> }
> diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
> index f042eec..f221b6b 100644
> --- a/fs/sysv/itree.c
> +++ b/fs/sysv/itree.c
> @@ -369,15 +369,12 @@ void sysv_truncate (struct inode * inode)
> sysv_zone_t nr = 0;
> int n;
> long iblock;
> - unsigned blocksize;
>
> if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
> S_ISLNK(inode->i_mode)))
> return;
>
> - blocksize = inode->i_sb->s_blocksize;
> - iblock = (inode->i_size + blocksize-1)
> - >> inode->i_sb->s_blocksize_bits;
> + iblock = bytes_to_blocks(inode->i_size, inode->i_sb);
>
> block_truncate_page(inode->i_mapping, inode->i_size, get_block);
>
> @@ -430,7 +427,7 @@ static unsigned sysv_nblocks(struct super_block *s, loff_t size)
> struct sysv_sb_info *sbi = SYSV_SB(s);
> int ptrs_bits = sbi->s_ind_per_block_bits;
> unsigned blocks, res, direct = DIRECT, i = DEPTH;
> - blocks = (size + s->s_blocksize - 1) >> s->s_blocksize_bits;
> + blocks = bytes_to_blocks(size, s);
> res = blocks;
> while (--i && blocks > direct) {
> blocks = ((blocks - direct - 1) >> ptrs_bits) + 1;
> diff --git a/fs/udf/inode.c b/fs/udf/inode.c
> index e7533f7..55b20e2 100644
> --- a/fs/udf/inode.c
> +++ b/fs/udf/inode.c
> @@ -376,13 +376,9 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
> iinfo = UDF_I(inode);
> /* Round the last extent up to a multiple of block size */
> if (last_ext->extLength & (sb->s_blocksize - 1)) {
> - last_ext->extLength =
> - (last_ext->extLength & UDF_EXTENT_FLAG_MASK) |
> - (((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) +
> - sb->s_blocksize - 1) & ~(sb->s_blocksize - 1));
> - iinfo->i_lenExtents =
> - (iinfo->i_lenExtents + sb->s_blocksize - 1) &
> - ~(sb->s_blocksize - 1);
> + last_ext->extLength = (last_ext->extLength & UDF_EXTENT_FLAG_MASK) |
> + roundup_to_blocksize(last_ext->extLength & UDF_EXTENT_LENGTH_MASK, sb);
> + iinfo->i_lenExtents = roundup_to_blocksize(iinfo->i_lenExtents, sb);
> }
>
> /* Last extent are just preallocated blocks? */
> @@ -527,8 +523,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
>
> if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
> pgoal = eloc.logicalBlockNum +
> - ((elen + inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits);
> + bytes_to_blocks(elen, inode->i_sb);
>
> count++;
> } while (lbcount + elen <= b_off);
> @@ -548,8 +543,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
> if (etype == (EXT_RECORDED_ALLOCATED >> 30)) {
> if (elen & (inode->i_sb->s_blocksize - 1)) {
> elen = EXT_RECORDED_ALLOCATED |
> - ((elen + inode->i_sb->s_blocksize - 1) &
> - ~(inode->i_sb->s_blocksize - 1));
> + roundup_to_blocksize(elen, inode->i_sb);
> etype = udf_write_aext(inode, &cur_epos, &eloc, elen, 1);
> }
> brelse(prev_epos.bh);
> @@ -709,8 +703,9 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
> (laarr[*c].extLength >> 30) ==
> (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
> int curr = *c;
> - int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) >> blocksize_bits;
> + int blen = bytes_to_blocks(
> + laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb);
> int8_t etype = (laarr[curr].extLength >> 30);
>
> if (blen == 1)
> @@ -778,10 +773,8 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
> (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
> start = c + 1;
> length = currlength =
> - (((laarr[c + 1].extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits);
> + bytes_to_blocks(laarr[c + 1].extLength &
> + UDF_EXTENT_LENGTH_MASK, inode->i_sb);
> } else
> start = c;
> }
> @@ -792,19 +785,17 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
> length += UDF_DEFAULT_PREALLOC_BLOCKS;
> } else if ((laarr[i].extLength >> 30) ==
> (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
> - length += (((laarr[i].extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits);
> + length += bytes_to_blocks(laarr[i].extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb);
> } else
> break;
> }
>
> if (length) {
> int next = laarr[start].extLocation.logicalBlockNum +
> - (((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) +
> - inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits);
> + bytes_to_blocks(laarr[start].extLength &
> + UDF_EXTENT_LENGTH_MASK, inode->i_sb);
> int numalloc = udf_prealloc_blocks(inode->i_sb, inode,
> laarr[start].extLocation.partitionReferenceNum,
> next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ?
> @@ -831,10 +822,9 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
> }
>
> for (i = start + 1; numalloc && i < *endnum; i++) {
> - int elen = ((laarr[i].extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits;
> + int elen = bytes_to_blocks(laarr[i].extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb);
>
> if (elen > numalloc) {
> laarr[i].extLength -=
> @@ -875,8 +865,9 @@ static void udf_merge_extents(struct inode *inode,
> (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
> ((lip1->extLocation.logicalBlockNum -
> li->extLocation.logicalBlockNum) ==
> - (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) >> blocksize_bits)))) {
> + bytes_to_blocks(li->extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb)))) {
>
> if (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
> (lip1->extLength & UDF_EXTENT_LENGTH_MASK) +
> @@ -897,9 +888,9 @@ static void udf_merge_extents(struct inode *inode,
> blocksize_bits);
> } else {
> li->extLength = lip1->extLength +
> - (((li->extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) & ~(blocksize - 1));
> + roundup_to_blocksize(li->extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb);
> if (*endnum > (i + 2))
> memmove(&laarr[i + 1], &laarr[i + 2],
> sizeof(struct long_ad) *
> @@ -912,9 +903,8 @@ static void udf_merge_extents(struct inode *inode,
> ((lip1->extLength >> 30) ==
> (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
> udf_free_blocks(inode->i_sb, inode, &li->extLocation, 0,
> - ((li->extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) >> blocksize_bits);
> + bytes_to_blocks(li->extLength &
> + UDF_EXTENT_LENGTH_MASK, inode->i_sb));
> li->extLocation.logicalBlockNum = 0;
> li->extLocation.partitionReferenceNum = 0;
>
> @@ -932,9 +922,9 @@ static void udf_merge_extents(struct inode *inode,
> blocksize;
> } else {
> li->extLength = lip1->extLength +
> - (((li->extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) & ~(blocksize - 1));
> + roundup_to_blocksize(li->extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb);
> if (*endnum > (i + 2))
> memmove(&laarr[i + 1], &laarr[i + 2],
> sizeof(struct long_ad) *
> @@ -946,9 +936,9 @@ static void udf_merge_extents(struct inode *inode,
> (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
> udf_free_blocks(inode->i_sb, inode,
> &li->extLocation, 0,
> - ((li->extLength &
> - UDF_EXTENT_LENGTH_MASK) +
> - blocksize - 1) >> blocksize_bits);
> + bytes_to_blocks(li->extLength &
> + UDF_EXTENT_LENGTH_MASK,
> + inode->i_sb));
> li->extLocation.logicalBlockNum = 0;
> li->extLocation.partitionReferenceNum = 0;
> li->extLength = (li->extLength &
> diff --git a/fs/udf/namei.c b/fs/udf/namei.c
> index 6a29fa3..78550ef 100644
> --- a/fs/udf/namei.c
> +++ b/fs/udf/namei.c
> @@ -410,7 +410,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
> add:
> /* Is there any extent whose size we need to round up? */
> if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB && elen) {
> - elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
> + elen = roundup_to_blocksize(elen, sb);
> if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
> epos.offset -= sizeof(struct short_ad);
> else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
> diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
> index 225527c..6fa3839 100644
> --- a/fs/udf/truncate.c
> +++ b/fs/udf/truncate.c
> @@ -32,10 +32,8 @@ static void extent_trunc(struct inode *inode, struct extent_position *epos,
> uint32_t nelen)
> {
> struct kernel_lb_addr neloc = {};
> - int last_block = (elen + inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits;
> - int first_block = (nelen + inode->i_sb->s_blocksize - 1) >>
> - inode->i_sb->s_blocksize_bits;
> + int last_block = bytes_to_blocks(elen, inode->i_sb);
> + int first_block = bytes_to_blocks(nelen, inode->i_sb);
>
> if (nelen) {
> if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
> @@ -256,8 +254,7 @@ void udf_truncate_extents(struct inode *inode)
> udf_get_lb_pblock(sb, &eloc, 0));
> if (elen)
> indirect_ext_len =
> - (elen + sb->s_blocksize - 1) >>
> - sb->s_blocksize_bits;
> + bytes_to_blocks(elen, sb);
> else
> indirect_ext_len = 1;
> } else {
--
David Kleikamp
IBM Linux Technology Center
--
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