diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-09-01 11:18:02 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-12-15 17:29:18 -0800 |
| commit | 22291cfb1132e89552db38399ab78dd3bfd0c940 (patch) | |
| tree | d89c4cc246e233d2b69acc75a5b66c1a43fcd2f3 /fs/xfs/scrub | |
| parent | c6b4c6212e2a527cbb2cb0097da62a8a0051fc55 (diff) | |
xfs: create a noalloc mode for allocation groups
Create a new noalloc state for the per-AG structure that will disable
block allocation in this AG. We accomplish this by subtracting from
fdblocks all the free blocks in this AG, hiding those blocks from the
allocator, and preventing freed blocks from updating fdblocks until
we're ready to lift noalloc mode.
Note that we reduce the free block count of the filesystem so that we
can prevent transactions from entering the allocator looking for "free"
space that we've turned off incore.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/scrub')
| -rw-r--r-- | fs/xfs/scrub/fscounters.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/scrub/fscounters.c b/fs/xfs/scrub/fscounters.c index f7e7ae58b4a4..fc0ae3d60657 100644 --- a/fs/xfs/scrub/fscounters.c +++ b/fs/xfs/scrub/fscounters.c @@ -239,7 +239,8 @@ retry: */ fsc->fdblocks -= pag->pag_meta_resv.ar_reserved; fsc->fdblocks -= pag->pag_rmapbt_resv.ar_orig_reserved; - + if (pag->pagf_noalloc) + fsc->fdblocks -= xfs_ag_fdblocks(pag); } if (pag) xfs_perag_put(pag); |