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-rw-r--r--fs/nfs/filelayout/filelayout.c21
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c19
-rw-r--r--fs/nfs/pnfs.h6
-rw-r--r--fs/nfs/pnfs_nfs.c77
4 files changed, 117 insertions, 6 deletions
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index ffc5e2af1776..e3cf42c91d80 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -1169,6 +1169,26 @@ filelayout_get_ds_info(struct inode *inode)
}
static void
+filelayout_setup_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_layout_segment *lseg)
+{
+ struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
+ struct inode *inode = lseg->pls_layout->plh_inode;
+ struct pnfs_commit_array *array, *new;
+ unsigned int size = (fl->stripe_type == STRIPE_SPARSE) ?
+ fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
+
+ new = pnfs_alloc_commit_array(size, GFP_NOIO);
+ if (new) {
+ spin_lock(&inode->i_lock);
+ array = pnfs_add_commit_array(fl_cinfo, new, lseg);
+ spin_unlock(&inode->i_lock);
+ if (array != new)
+ pnfs_free_commit_array(new);
+ }
+}
+
+static void
filelayout_release_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
struct inode *inode)
{
@@ -1191,6 +1211,7 @@ static struct pnfs_layoutdriver_type filelayout_type = {
.pg_read_ops = &filelayout_pg_read_ops,
.pg_write_ops = &filelayout_pg_write_ops,
.get_ds_info = &filelayout_get_ds_info,
+ .setup_ds_info = filelayout_setup_ds_info,
.release_ds_info = filelayout_release_ds_info,
.mark_request_commit = filelayout_mark_request_commit,
.clear_request_commit = pnfs_generic_clear_request_commit,
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 8e1393d75cbc..f343a241906a 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -2005,6 +2005,24 @@ ff_layout_get_ds_info(struct inode *inode)
}
static void
+ff_layout_setup_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_layout_segment *lseg)
+{
+ struct nfs4_ff_layout_segment *flseg = FF_LAYOUT_LSEG(lseg);
+ struct inode *inode = lseg->pls_layout->plh_inode;
+ struct pnfs_commit_array *array, *new;
+
+ new = pnfs_alloc_commit_array(flseg->mirror_array_cnt, GFP_NOIO);
+ if (new) {
+ spin_lock(&inode->i_lock);
+ array = pnfs_add_commit_array(fl_cinfo, new, lseg);
+ spin_unlock(&inode->i_lock);
+ if (array != new)
+ pnfs_free_commit_array(new);
+ }
+}
+
+static void
ff_layout_release_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
struct inode *inode)
{
@@ -2513,6 +2531,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = {
.pg_read_ops = &ff_layout_pg_read_ops,
.pg_write_ops = &ff_layout_pg_write_ops,
.get_ds_info = ff_layout_get_ds_info,
+ .setup_ds_info = ff_layout_setup_ds_info,
.release_ds_info = ff_layout_release_ds_info,
.free_deviceid_node = ff_layout_free_deviceid_node,
.mark_request_commit = pnfs_layout_mark_request_commit,
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 6c48bd7b4640..9647045a60c2 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -150,6 +150,8 @@ struct pnfs_layoutdriver_type {
const struct nfs_pageio_ops *pg_write_ops;
struct pnfs_ds_commit_info *(*get_ds_info) (struct inode *inode);
+ void (*setup_ds_info)(struct pnfs_ds_commit_info *,
+ struct pnfs_layout_segment *);
void (*release_ds_info)(struct pnfs_ds_commit_info *,
struct inode *inode);
void (*mark_request_commit) (struct nfs_page *req,
@@ -371,6 +373,10 @@ void nfs4_deviceid_purge_client(const struct nfs_client *);
/* pnfs_nfs.c */
struct pnfs_commit_array *pnfs_alloc_commit_array(size_t n, gfp_t gfp_flags);
void pnfs_free_commit_array(struct pnfs_commit_array *p);
+struct pnfs_commit_array *pnfs_add_commit_array(struct pnfs_ds_commit_info *,
+ struct pnfs_commit_array *,
+ struct pnfs_layout_segment *);
+
void pnfs_generic_ds_cinfo_release_lseg(struct pnfs_ds_commit_info *fl_cinfo,
struct pnfs_layout_segment *lseg);
void pnfs_generic_ds_cinfo_destroy(struct pnfs_ds_commit_info *fl_cinfo);
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index edad251a6a48..5b426a090ee3 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -118,6 +118,66 @@ pnfs_free_commit_array(struct pnfs_commit_array *p)
}
EXPORT_SYMBOL_GPL(pnfs_free_commit_array);
+static struct pnfs_commit_array *
+pnfs_find_commit_array_by_lseg(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_layout_segment *lseg)
+{
+ struct pnfs_commit_array *array;
+
+ list_for_each_entry_rcu(array, &fl_cinfo->commits, cinfo_list) {
+ if (array->lseg == lseg)
+ return array;
+ }
+ return NULL;
+}
+
+struct pnfs_commit_array *
+pnfs_add_commit_array(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_commit_array *new,
+ struct pnfs_layout_segment *lseg)
+{
+ struct pnfs_commit_array *array;
+
+ array = pnfs_find_commit_array_by_lseg(fl_cinfo, lseg);
+ if (array)
+ return array;
+ new->lseg = lseg;
+ refcount_set(&new->refcount, 1);
+ list_add_rcu(&new->cinfo_list, &fl_cinfo->commits);
+ list_add(&new->lseg_list, &lseg->pls_commits);
+ return new;
+}
+EXPORT_SYMBOL_GPL(pnfs_add_commit_array);
+
+static void
+pnfs_setup_ds_info(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_layout_segment *lseg)
+{
+ struct inode *inode = lseg->pls_layout->plh_inode;
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+
+ if (ld->setup_ds_info != NULL)
+ ld->setup_ds_info(fl_cinfo, lseg);
+}
+
+static struct pnfs_commit_array *
+pnfs_lookup_commit_array(struct pnfs_ds_commit_info *fl_cinfo,
+ struct pnfs_layout_segment *lseg)
+{
+ struct pnfs_commit_array *array;
+
+ rcu_read_lock();
+ array = pnfs_find_commit_array_by_lseg(fl_cinfo, lseg);
+ if (!array) {
+ rcu_read_unlock();
+ pnfs_setup_ds_info(fl_cinfo, lseg);
+ rcu_read_lock();
+ array = pnfs_find_commit_array_by_lseg(fl_cinfo, lseg);
+ }
+ rcu_read_unlock();
+ return array;
+}
+
static void
pnfs_release_commit_array_locked(struct pnfs_commit_array *array)
{
@@ -1082,17 +1142,18 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
u32 ds_commit_idx)
{
struct list_head *list;
+ struct pnfs_commit_array *array;
struct pnfs_commit_bucket *buckets;
mutex_lock(&NFS_I(cinfo->inode)->commit_mutex);
- buckets = cinfo->ds->buckets;
+ array = pnfs_lookup_commit_array(cinfo->ds, lseg);
+ if (!array)
+ goto out_resched;
+ buckets = array->buckets;
list = &buckets[ds_commit_idx].written;
if (list_empty(list)) {
- if (!pnfs_is_valid_lseg(lseg)) {
- mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
- cinfo->completion_ops->resched_write(cinfo, req);
- return;
- }
+ if (!pnfs_is_valid_lseg(lseg))
+ goto out_resched;
/* Non-empty buckets hold a reference on the lseg. That ref
* is normally transferred to the COMMIT call and released
* there. It could also be released if the last req is pulled
@@ -1108,6 +1169,10 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
nfs_request_add_commit_list_locked(req, list, cinfo);
mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
nfs_mark_page_unstable(req->wb_page, cinfo);
+ return;
+out_resched:
+ mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
+ cinfo->completion_ops->resched_write(cinfo, req);
}
EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 13:37:38 +0000