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exfat: reuse exfat_inode_info variable instead of calling EXFAT_I() 

Also add a local "struct exfat_inode_info *ei" variable to
exfat_truncate() to simplify the code.

Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Christophe Vu-Brugier 2021-11-02 22:23:58 +01:00 committed by Namjae Jeon
parent 8cf058834b
commit 7dee6f57d7
4 changed files with 17 additions and 18 deletions
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14
fs/exfat/file.c
View File

@ -110,8 +110,7 @@ int __exfat_truncate(struct inode *inode, loff_t new_size)
exfat_set_volume_dirty(sb);
num_clusters_new = EXFAT_B_TO_CLU_ROUND_UP(i_size_read(inode), sbi);
num_clusters_phys =
EXFAT_B_TO_CLU_ROUND_UP(EXFAT_I(inode)->i_size_ondisk, sbi);
num_clusters_phys = EXFAT_B_TO_CLU_ROUND_UP(ei->i_size_ondisk, sbi);
exfat_chain_set(&clu, ei->start_clu, num_clusters_phys, ei->flags);
@ -228,12 +227,13 @@ void exfat_truncate(struct inode *inode, loff_t size)
{
struct super_block *sb = inode->i_sb;
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct exfat_inode_info *ei = EXFAT_I(inode);
unsigned int blocksize = i_blocksize(inode);
loff_t aligned_size;
int err;
mutex_lock(&sbi->s_lock);
if (EXFAT_I(inode)->start_clu == 0) {
if (ei->start_clu == 0) {
/*
* Empty start_clu != ~0 (not allocated)
*/
@ -260,11 +260,11 @@ write_size:
aligned_size++;
}
if (EXFAT_I(inode)->i_size_ondisk > i_size_read(inode))
EXFAT_I(inode)->i_size_ondisk = aligned_size;
if (ei->i_size_ondisk > i_size_read(inode))
ei->i_size_ondisk = aligned_size;
if (EXFAT_I(inode)->i_size_aligned > i_size_read(inode))
EXFAT_I(inode)->i_size_aligned = aligned_size;
if (ei->i_size_aligned > i_size_read(inode))
ei->i_size_aligned = aligned_size;
mutex_unlock(&sbi->s_lock);
}

9
fs/exfat/inode.c
View File

@ -114,10 +114,9 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
unsigned int local_clu_offset = clu_offset;
unsigned int num_to_be_allocated = 0, num_clusters = 0;
if (EXFAT_I(inode)->i_size_ondisk > 0)
if (ei->i_size_ondisk > 0)
num_clusters =
EXFAT_B_TO_CLU_ROUND_UP(EXFAT_I(inode)->i_size_ondisk,
sbi);
EXFAT_B_TO_CLU_ROUND_UP(ei->i_size_ondisk, sbi);
if (clu_offset >= num_clusters)
num_to_be_allocated = clu_offset - num_clusters + 1;
@ -416,10 +415,10 @@ static int exfat_write_end(struct file *file, struct address_space *mapping,
err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata);
if (EXFAT_I(inode)->i_size_aligned < i_size_read(inode)) {
if (ei->i_size_aligned < i_size_read(inode)) {
exfat_fs_error(inode->i_sb,
"invalid size(size(%llu) > aligned(%llu)\n",
i_size_read(inode), EXFAT_I(inode)->i_size_aligned);
i_size_read(inode), ei->i_size_aligned);
return -EIO;
}

6
fs/exfat/namei.c
View File

@ -395,9 +395,9 @@ static int exfat_find_empty_entry(struct inode *inode,
/* directory inode should be updated in here */
i_size_write(inode, size);
EXFAT_I(inode)->i_size_ondisk += sbi->cluster_size;
EXFAT_I(inode)->i_size_aligned += sbi->cluster_size;
EXFAT_I(inode)->flags = p_dir->flags;
ei->i_size_ondisk += sbi->cluster_size;
ei->i_size_aligned += sbi->cluster_size;
ei->flags = p_dir->flags;
inode->i_blocks += 1 << sbi->sect_per_clus_bits;
}

6
fs/exfat/super.c
View File

@ -366,9 +366,9 @@ static int exfat_read_root(struct inode *inode)
inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1))
& ~(sbi->cluster_size - 1)) >> inode->i_blkbits;
EXFAT_I(inode)->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff;
EXFAT_I(inode)->i_size_aligned = i_size_read(inode);
EXFAT_I(inode)->i_size_ondisk = i_size_read(inode);
ei->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff;
ei->i_size_aligned = i_size_read(inode);
ei->i_size_ondisk = i_size_read(inode);
exfat_save_attr(inode, ATTR_SUBDIR);
inode->i_mtime = inode->i_atime = inode->i_ctime = ei->i_crtime =