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xfs: clean up xfs_buftarg 

Clean up the xfs_buftarg structure a bit:
- remove bt_bsize which is never used
- replace bt_sshift with bt_ssize; we only ever shift it back

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Eric Sandeen 2014-01-21 16:44:57 -06:00 committed by Ben Myers
parent bf3964c188
commit f0bc9985fe
3 changed files with 4 additions and 6 deletions
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5
fs/xfs/xfs_buf.c
View File

@ -445,7 +445,7 @@ _xfs_buf_find(
numbytes = BBTOB(numblks);
/* Check for IOs smaller than the sector size / not sector aligned */
ASSERT(!(numbytes < (1 << btp->bt_sshift)));
ASSERT(!(numbytes < btp->bt_ssize));
ASSERT(!(BBTOB(blkno) & (xfs_off_t)btp->bt_smask));
/*
@ -1599,8 +1599,7 @@ xfs_setsize_buftarg(
unsigned int blocksize,
unsigned int sectorsize)
{
btp->bt_bsize = blocksize;
btp->bt_sshift = ffs(sectorsize) - 1;
btp->bt_ssize = sectorsize;
btp->bt_smask = sectorsize - 1;
if (set_blocksize(btp->bt_bdev, sectorsize)) {

3
fs/xfs/xfs_buf.h
View File

@ -93,8 +93,7 @@ typedef struct xfs_buftarg {
struct block_device *bt_bdev;
struct backing_dev_info *bt_bdi;
struct xfs_mount *bt_mount;
unsigned int bt_bsize;
unsigned int bt_sshift;
unsigned int bt_ssize;
size_t bt_smask;
/* LRU control structures */

2
fs/xfs/xfs_ioctl.c
View File

@ -1583,7 +1583,7 @@ xfs_file_ioctl(
XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
da.d_mem = da.d_miniosz = target->bt_ssize;
da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
if (copy_to_user(arg, &da, sizeof(da)))