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/aops.c b/fs/gfs2/aops.c
index 4858e1f..501e5cb 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -615,7 +615,7 @@
unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
int alloc_required;
int error = 0;
- struct gfs2_alloc *al = NULL;
+ struct gfs2_qadata *qa = NULL;
pgoff_t index = pos >> PAGE_CACHE_SHIFT;
unsigned from = pos & (PAGE_CACHE_SIZE - 1);
struct page *page;
@@ -639,8 +639,8 @@
gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
if (alloc_required) {
- al = gfs2_alloc_get(ip);
- if (!al) {
+ qa = gfs2_qadata_get(ip);
+ if (!qa) {
error = -ENOMEM;
goto out_unlock;
}
@@ -649,8 +649,7 @@
if (error)
goto out_alloc_put;
- al->al_requested = data_blocks + ind_blocks;
- error = gfs2_inplace_reserve(ip);
+ error = gfs2_inplace_reserve(ip, data_blocks + ind_blocks);
if (error)
goto out_qunlock;
}
@@ -711,7 +710,7 @@
out_qunlock:
gfs2_quota_unlock(ip);
out_alloc_put:
- gfs2_alloc_put(ip);
+ gfs2_qadata_put(ip);
}
out_unlock:
if (&ip->i_inode == sdp->sd_rindex) {
@@ -848,7 +847,7 @@
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
struct buffer_head *dibh;
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
unsigned int from = pos & (PAGE_CACHE_SIZE - 1);
unsigned int to = from + len;
int ret;
@@ -880,10 +879,11 @@
brelse(dibh);
failed:
gfs2_trans_end(sdp);
- if (al) {
+ if (ip->i_res)
gfs2_inplace_release(ip);
+ if (qa) {
gfs2_quota_unlock(ip);
- gfs2_alloc_put(ip);
+ gfs2_qadata_put(ip);
}
if (inode == sdp->sd_rindex) {
gfs2_glock_dq(&m_ip->i_gh);