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gfs2: Remove freeze_go_demote_ok

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Before commit b77b4a4815 ("gfs2: Rework freeze / thaw logic"), the
freeze glock was kept around in the glock cache in shared mode without
being actively held while a filesystem is in thawed state.  In that
state, memory pressure could have eventually evicted the freeze glock,
and the freeze_go_demote_ok callback was needed to prevent that from
happening.

With the freeze / thaw rework, the freeze glock is now always actively
held in shared mode while a filesystem is thawed, and the
freeze_go_demote_ok hack is no longer needed.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher
2023-09-01 21:39:26 +02:00
parent 18c1db313e
commit bbacb395ac
1 changed files with 0 additions and 13 deletions
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13
fs/gfs2/glops.c
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@@ -613,18 +613,6 @@ static int freeze_go_xmote_bh(struct gfs2_glock *gl)
return 0;
}
/**
* freeze_go_demote_ok
* @gl: the glock
*
* Always returns 0
*/
static int freeze_go_demote_ok(const struct gfs2_glock *gl)
{
return 0;
}
/**
* iopen_go_callback - schedule the dcache entry for the inode to be deleted
* @gl: the glock
@@ -744,7 +732,6 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
const struct gfs2_glock_operations gfs2_freeze_glops = {
.go_xmote_bh = freeze_go_xmote_bh,
.go_demote_ok = freeze_go_demote_ok,
.go_callback = freeze_go_callback,
.go_type = LM_TYPE_NONDISK,
.go_flags = GLOF_NONDISK,