block: add a bdev_discard_granularity helper
Abstract away implementation details from file systems by providing a
block_device based helper to retrieve the discard granularity.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Acked-by: Christoph Böhmwalder <[email protected]> [drbd]
Acked-by: Ryusuke Konishi <[email protected]>
Acked-by: David Sterba <[email protected]> [btrfs]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7f20ac9..6d26bb5 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1386,7 +1386,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
{
struct inode *inode = file_inode(filp);
struct gfs2_sbd *sdp = GFS2_SB(inode);
- struct request_queue *q = bdev_get_queue(sdp->sd_vfs->s_bdev);
+ struct block_device *bdev = sdp->sd_vfs->s_bdev;
struct buffer_head *bh;
struct gfs2_rgrpd *rgd;
struct gfs2_rgrpd *rgd_end;
@@ -1405,7 +1405,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
return -EROFS;
- if (!bdev_max_discard_sectors(sdp->sd_vfs->s_bdev))
+ if (!bdev_max_discard_sectors(bdev))
return -EOPNOTSUPP;
if (copy_from_user(&r, argp, sizeof(r)))
@@ -1418,8 +1418,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
start = r.start >> bs_shift;
end = start + (r.len >> bs_shift);
minlen = max_t(u64, r.minlen, sdp->sd_sb.sb_bsize);
- minlen = max_t(u64, minlen,
- q->limits.discard_granularity) >> bs_shift;
+ minlen = max_t(u64, minlen, bdev_discard_granularity(bdev)) >> bs_shift;
if (end <= start || minlen > sdp->sd_max_rg_data)
return -EINVAL;
