GFS2: decouple quota allocations from block allocations
This patch separates the code pertaining to allocations into two
parts: quota-related information and block reservations.
This patch also moves all the block reservation structure allocations to
function gfs2_inplace_reserve to simplify the code, and moves
the frees to function gfs2_inplace_release.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 3ab192b..ab8c429 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -391,11 +391,11 @@
int error;
int dblocks = 0;
- if (gfs2_alloc_get(dip) == NULL)
- return -ENOMEM;
+ error = gfs2_rindex_update(sdp);
+ if (error)
+ fs_warn(sdp, "rindex update returns %d\n", error);
- dip->i_alloc->al_requested = RES_DINODE;
- error = gfs2_inplace_reserve(dip);
+ error = gfs2_inplace_reserve(dip, RES_DINODE);
if (error)
goto out;
@@ -410,7 +410,6 @@
out_ipreserv:
gfs2_inplace_release(dip);
out:
- gfs2_alloc_put(dip);
return error;
}
@@ -526,7 +525,7 @@
int error;
munge_mode_uid_gid(dip, &mode, &uid, &gid);
- if (!gfs2_alloc_get(dip))
+ if (!gfs2_qadata_get(dip))
return -ENOMEM;
error = gfs2_quota_lock(dip, uid, gid);
@@ -548,7 +547,7 @@
out_quota:
gfs2_quota_unlock(dip);
out:
- gfs2_alloc_put(dip);
+ gfs2_qadata_put(dip);
return error;
}
@@ -556,13 +555,13 @@
struct gfs2_inode *ip)
{
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct gfs2_alloc *al;
+ struct gfs2_qadata *qa;
int alloc_required;
struct buffer_head *dibh;
int error;
- al = gfs2_alloc_get(dip);
- if (!al)
+ qa = gfs2_qadata_get(dip);
+ if (!qa)
return -ENOMEM;
error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
@@ -577,9 +576,7 @@
if (error)
goto fail_quota_locks;
- al->al_requested = sdp->sd_max_dirres;
-
- error = gfs2_inplace_reserve(dip);
+ error = gfs2_inplace_reserve(dip, sdp->sd_max_dirres);
if (error)
goto fail_quota_locks;
@@ -620,7 +617,7 @@
gfs2_quota_unlock(dip);
fail:
- gfs2_alloc_put(dip);
+ gfs2_qadata_put(dip);
return error;
}
@@ -729,9 +726,12 @@
brelse(bh);
gfs2_trans_end(sdp);
- gfs2_inplace_release(dip);
+ /* Check if we reserved space in the rgrp. Function link_dinode may
+ not, depending on whether alloc is required. */
+ if (dip->i_res)
+ gfs2_inplace_release(dip);
gfs2_quota_unlock(dip);
- gfs2_alloc_put(dip);
+ gfs2_qadata_put(dip);
mark_inode_dirty(inode);
gfs2_glock_dq_uninit_m(2, ghs);
d_instantiate(dentry, inode);
@@ -876,8 +876,9 @@
error = 0;
if (alloc_required) {
- struct gfs2_alloc *al = gfs2_alloc_get(dip);
- if (!al) {
+ struct gfs2_qadata *qa = gfs2_qadata_get(dip);
+
+ if (!qa) {
error = -ENOMEM;
goto out_gunlock;
}
@@ -886,9 +887,7 @@
if (error)
goto out_alloc;
- al->al_requested = sdp->sd_max_dirres;
-
- error = gfs2_inplace_reserve(dip);
+ error = gfs2_inplace_reserve(dip, sdp->sd_max_dirres);
if (error)
goto out_gunlock_q;
@@ -931,7 +930,7 @@
gfs2_quota_unlock(dip);
out_alloc:
if (alloc_required)
- gfs2_alloc_put(dip);
+ gfs2_qadata_put(dip);
out_gunlock:
gfs2_glock_dq(ghs + 1);
out_child:
@@ -1354,8 +1353,9 @@
error = 0;
if (alloc_required) {
- struct gfs2_alloc *al = gfs2_alloc_get(ndip);
- if (!al) {
+ struct gfs2_qadata *qa = gfs2_qadata_get(ndip);
+
+ if (!qa) {
error = -ENOMEM;
goto out_gunlock;
}
@@ -1364,9 +1364,7 @@
if (error)
goto out_alloc;
- al->al_requested = sdp->sd_max_dirres;
-
- error = gfs2_inplace_reserve(ndip);
+ error = gfs2_inplace_reserve(ndip, sdp->sd_max_dirres);
if (error)
goto out_gunlock_q;
@@ -1427,7 +1425,7 @@
gfs2_quota_unlock(ndip);
out_alloc:
if (alloc_required)
- gfs2_alloc_put(ndip);
+ gfs2_qadata_put(ndip);
out_gunlock:
while (x--) {
gfs2_glock_dq(ghs + x);
@@ -1588,7 +1586,7 @@
if (!(attr->ia_valid & ATTR_GID) || ogid == ngid)
ogid = ngid = NO_QUOTA_CHANGE;
- if (!gfs2_alloc_get(ip))
+ if (!gfs2_qadata_get(ip))
return -ENOMEM;
error = gfs2_quota_lock(ip, nuid, ngid);
@@ -1620,7 +1618,7 @@
out_gunlock_q:
gfs2_quota_unlock(ip);
out_alloc:
- gfs2_alloc_put(ip);
+ gfs2_qadata_put(ip);
return error;
}