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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2021-02-08 20:44:26 +0100 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2021-02-17 19:30:28 +0100 |
| commit | 9e514605c77451745ea9fca5a26fc3153893686a (patch) | |
| tree | a1de848996ddcb7f19c564c153e79b3d493fa76e /fs/gfs2/lops.c | |
| parent | gfs2: Add per-reservation reserved block accounting (diff) | |
| download | linux-9e514605c77451745ea9fca5a26fc3153893686a.tar.xz linux-9e514605c77451745ea9fca5a26fc3153893686a.zip | |
gfs2: Add local resource group locking
Prepare for treating resource group glocks as exclusive among nodes but
shared among all tasks running on a node: introduce another layer of
node-specific locking that the local tasks can use to coordinate their
accesses.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/lops.c')
| -rw-r--r-- | fs/gfs2/lops.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 802bc15f9f11..dffa6cc8b5b8 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -76,8 +76,9 @@ static void maybe_release_space(struct gfs2_bufdata *bd) unsigned int index = bd->bd_bh->b_blocknr - gl->gl_name.ln_number; struct gfs2_bitmap *bi = rgd->rd_bits + index; + rgrp_lock_local(rgd); if (bi->bi_clone == NULL) - return; + goto out; if (sdp->sd_args.ar_discard) gfs2_rgrp_send_discards(sdp, rgd->rd_data0, bd->bd_bh, bi, 1, NULL); memcpy(bi->bi_clone + bi->bi_offset, @@ -86,6 +87,9 @@ static void maybe_release_space(struct gfs2_bufdata *bd) rgd->rd_free_clone = rgd->rd_free; BUG_ON(rgd->rd_free_clone < rgd->rd_reserved); rgd->rd_extfail_pt = rgd->rd_free; + +out: + rgrp_unlock_local(rgd); } /** |