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-rw-r--r--fs/gfs2/rgrp.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7a001f6e8aee..ecdc4cb5b6ad 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -2559,19 +2559,35 @@ void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
if (gfs2_assert_warn(sdp, !rlist->rl_ghs))
return;
- if (ip->i_rgd && rgrp_contains_block(ip->i_rgd, block))
- rgd = ip->i_rgd;
- else
+ /*
+ * The resource group last accessed is kept in the last position.
+ */
+
+ if (rlist->rl_rgrps) {
+ rgd = rlist->rl_rgd[rlist->rl_rgrps - 1];
+ if (rgrp_contains_block(rgd, block))
+ return;
rgd = gfs2_blk2rgrpd(sdp, block, 1);
+ } else {
+ rgd = ip->i_rgd;
+ if (!rgd || !rgrp_contains_block(rgd, block))
+ rgd = gfs2_blk2rgrpd(sdp, block, 1);
+ }
+
if (!rgd) {
- fs_err(sdp, "rlist_add: no rgrp for block %llu\n", (unsigned long long)block);
+ fs_err(sdp, "rlist_add: no rgrp for block %llu\n",
+ (unsigned long long)block);
return;
}
ip->i_rgd = rgd;
- for (x = 0; x < rlist->rl_rgrps; x++)
- if (rlist->rl_rgd[x] == rgd)
+ for (x = 0; x < rlist->rl_rgrps; x++) {
+ if (rlist->rl_rgd[x] == rgd) {
+ swap(rlist->rl_rgd[x],
+ rlist->rl_rgd[rlist->rl_rgrps - 1]);
return;
+ }
+ }
if (rlist->rl_rgrps == rlist->rl_space) {
new_space = rlist->rl_space + 10;