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Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/pagelist.c9
-rw-r--r--fs/nfs/write.c29
2 files changed, 15 insertions, 23 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 11968dcb7243..6e69ce43a13f 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -253,13 +253,14 @@ nfs_page_group_unlock(struct nfs_page *req)
nfs_page_clear_headlock(req);
}
-/*
- * nfs_page_group_sync_on_bit_locked
+/**
+ * nfs_page_group_sync_on_bit_locked - Test if all requests have @bit set
+ * @req: request in page group
+ * @bit: PG_* bit that is used to sync page group
*
* must be called with page group lock held
*/
-static bool
-nfs_page_group_sync_on_bit_locked(struct nfs_page *req, unsigned int bit)
+bool nfs_page_group_sync_on_bit_locked(struct nfs_page *req, unsigned int bit)
{
struct nfs_page *head = req->wb_head;
struct nfs_page *tmp;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index fa5c41d0989a..8b7c04737967 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -153,20 +153,10 @@ nfs_page_set_inode_ref(struct nfs_page *req, struct inode *inode)
}
}
-static int
-nfs_cancel_remove_inode(struct nfs_page *req, struct inode *inode)
+static void nfs_cancel_remove_inode(struct nfs_page *req, struct inode *inode)
{
- int ret;
-
- if (!test_bit(PG_REMOVE, &req->wb_flags))
- return 0;
- ret = nfs_page_group_lock(req);
- if (ret)
- return ret;
if (test_and_clear_bit(PG_REMOVE, &req->wb_flags))
nfs_page_set_inode_ref(req, inode);
- nfs_page_group_unlock(req);
- return 0;
}
/**
@@ -585,19 +575,18 @@ retry:
}
}
+ ret = nfs_page_group_lock(head);
+ if (ret < 0)
+ goto out_unlock;
+
/* Ensure that nobody removed the request before we locked it */
if (head != folio->private) {
+ nfs_page_group_unlock(head);
nfs_unlock_and_release_request(head);
goto retry;
}
- ret = nfs_cancel_remove_inode(head, inode);
- if (ret < 0)
- goto out_unlock;
-
- ret = nfs_page_group_lock(head);
- if (ret < 0)
- goto out_unlock;
+ nfs_cancel_remove_inode(head, inode);
/* lock each request in the page group */
for (subreq = head->wb_this_page;
@@ -786,7 +775,8 @@ static void nfs_inode_remove_request(struct nfs_page *req)
{
struct nfs_inode *nfsi = NFS_I(nfs_page_to_inode(req));
- if (nfs_page_group_sync_on_bit(req, PG_REMOVE)) {
+ nfs_page_group_lock(req);
+ if (nfs_page_group_sync_on_bit_locked(req, PG_REMOVE)) {
struct folio *folio = nfs_page_to_folio(req->wb_head);
struct address_space *mapping = folio->mapping;
@@ -798,6 +788,7 @@ static void nfs_inode_remove_request(struct nfs_page *req)
}
spin_unlock(&mapping->i_private_lock);
}
+ nfs_page_group_unlock(req);
if (test_and_clear_bit(PG_INODE_REF, &req->wb_flags)) {
atomic_long_dec(&nfsi->nrequests);