Commit 1a855033 authored by Bob Peterson's avatar Bob Peterson Committed by Steven Whitehouse
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GFS2: If we use up our block reservation, request more next time

If we run out of blocks for a given multi-block allocation, we obviously
did not reserve enough. We should reserve more blocks for the next
reservation to reduce fragmentation. This patch increases the size hint
for reservations when they run out.
Signed-off-by: default avatarBob Peterson <>
Signed-off-by: default avatarSteven Whitehouse <>
parent 33ad5d54
......@@ -2251,6 +2251,9 @@ static void gfs2_adjust_reservation(struct gfs2_inode *ip,
trace_gfs2_rs(rs, TRACE_RS_CLAIM);
if (rs->rs_free && !ret)
goto out;
/* We used up our block reservation, so we should
reserve more blocks next time. */
atomic_add(RGRP_RSRV_ADDBLKS, &rs->rs_sizehint);
......@@ -20,6 +20,7 @@
struct gfs2_rgrpd;
struct gfs2_sbd;
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