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gfs2: Minor PAGE_SIZE arithmetic cleanups

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Replace divisions by PAGE_SIZE with shifts by PAGE_SHIFT and similar.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2019-09-02 17:31:06 +01:00
parent 8f0daef5f7
commit 45eb05042d
3 changed files with 4 additions and 4 deletions
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4
fs/gfs2/aops.c
View File

@ -243,7 +243,7 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
{
struct inode *inode = mapping->host;
struct gfs2_sbd *sdp = GFS2_SB(inode);
unsigned nrblocks = nr_pages * (PAGE_SIZE/inode->i_sb->s_blocksize);
unsigned nrblocks = nr_pages * (PAGE_SIZE >> inode->i_blkbits);
int i;
int ret;
@ -552,7 +552,7 @@ int gfs2_internal_read(struct gfs2_inode *ip, char *buf, loff_t *pos,
unsigned size)
{
struct address_space *mapping = ip->i_inode.i_mapping;
unsigned long index = *pos / PAGE_SIZE;
unsigned long index = *pos >> PAGE_SHIFT;
unsigned offset = *pos & (PAGE_SIZE - 1);
unsigned copied = 0;
unsigned amt;

2
fs/gfs2/file.c
View File

@ -1049,7 +1049,7 @@ static long __gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t
rblocks += data_blocks ? data_blocks : 1;
error = gfs2_trans_begin(sdp, rblocks,
PAGE_SIZE/sdp->sd_sb.sb_bsize);
PAGE_SIZE >> inode->i_blkbits);
if (error)
goto out_trans_fail;

2
fs/gfs2/quota.c
View File

@ -774,7 +774,7 @@ static int gfs2_write_disk_quota(struct gfs2_inode *ip, struct gfs2_quota *qp,
nbytes = sizeof(struct gfs2_quota);
pg_beg = loc >> PAGE_SHIFT;
pg_off = loc % PAGE_SIZE;
pg_off = offset_in_page(loc);
/* If the quota straddles a page boundary, split the write in two */
if ((pg_off + nbytes) > PAGE_SIZE) {