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xfs: stop using set_blocksize

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XFS has its own buffer cache for metadata that uses submit_bio, which
means that it no longer uses the block device pagecache for anything.
Create a more lightweight helper that runs the blocksize checks and
flushes dirty data and use that instead.  No more truncating the
pagecache because XFS does not use it or care about it.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Darrick J. Wong
2025-04-23 12:54:13 -07:00
committed by Carlos Maiolino
parent 6475ece803
commit ea31bdece2
1 changed files with 11 additions and 4 deletions
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15
fs/xfs/xfs_buf.c
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@@ -1719,18 +1719,25 @@ xfs_setsize_buftarg(
struct xfs_buftarg *btp,
unsigned int sectorsize)
{
int error;
/* Set up metadata sector size info */
btp->bt_meta_sectorsize = sectorsize;
btp->bt_meta_sectormask = sectorsize - 1;
if (set_blocksize(btp->bt_bdev_file, sectorsize)) {
error = bdev_validate_blocksize(btp->bt_bdev, sectorsize);
if (error) {
xfs_warn(btp->bt_mount,
"Cannot set_blocksize to %u on device %pg",
sectorsize, btp->bt_bdev);
"Cannot use blocksize %u on device %pg, err %d",
sectorsize, btp->bt_bdev, error);
return -EINVAL;
}
return 0;
/*
* Flush the block device pagecache so our bios see anything dirtied
* before mount.
*/
return sync_blockdev(btp->bt_bdev);
}
int