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From: "Paulo Alcantara (SUSE)" <pc@cjr.nz>
To: smfrench@gmail.com
Cc: linux-cifs@vger.kernel.org, "Paulo Alcantara (SUSE)" <pc@cjr.nz>,
	Aurelien Aptel <aaptel@suse.com>
Subject: [PATCH v4 2/6] cifs: Get rid of kstrdup_const()'d paths
Date: Wed,  4 Dec 2019 17:37:59 -0300
Message-ID: <20191204203803.2316-3-pc@cjr.nz> (raw)
In-Reply-To: <20191204203803.2316-1-pc@cjr.nz>

The DFS cache API is mostly used with heap allocated strings.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
---
 fs/cifs/dfs_cache.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index aed4183840c5..49c5f045270f 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -131,7 +131,7 @@ static inline void flush_cache_ent(struct cache_entry *ce)
 		return;
 
 	hlist_del_init_rcu(&ce->hlist);
-	kfree_const(ce->path);
+	kfree(ce->path);
 	free_tgts(ce);
 	cache_count--;
 	call_rcu(&ce->rcu, free_cache_entry);
@@ -420,7 +420,7 @@ static struct cache_entry *alloc_cache_entry(const char *path,
 	if (!ce)
 		return ERR_PTR(-ENOMEM);
 
-	ce->path = kstrdup_const(path, GFP_KERNEL);
+	ce->path = kstrndup(path, strlen(path), GFP_KERNEL);
 	if (!ce->path) {
 		kmem_cache_free(cache_slab, ce);
 		return ERR_PTR(-ENOMEM);
@@ -430,7 +430,7 @@ static struct cache_entry *alloc_cache_entry(const char *path,
 
 	rc = copy_ref_data(refs, numrefs, ce, NULL);
 	if (rc) {
-		kfree_const(ce->path);
+		kfree(ce->path);
 		kmem_cache_free(cache_slab, ce);
 		ce = ERR_PTR(rc);
 	}
-- 
2.24.0


  parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-04 20:37 [PATCH v4 0/6] DFS fixes Paulo Alcantara (SUSE)
2019-12-04 20:37 ` [PATCH v4 1/6] cifs: Clean up DFS referral cache Paulo Alcantara (SUSE)
2019-12-04 20:37 ` Paulo Alcantara (SUSE) [this message]
2019-12-04 20:38 ` [PATCH v4 3/6] cifs: Introduce helpers for finding TCP connection Paulo Alcantara (SUSE)
2019-12-04 20:38 ` [PATCH v4 4/6] cifs: Merge is_path_valid() into get_normalized_path() Paulo Alcantara (SUSE)
2019-12-04 20:38 ` [PATCH v4 5/6] cifs: Fix potential deadlock when updating vol in cifs_reconnect() Paulo Alcantara (SUSE)
2019-12-04 20:38 ` [PATCH v4 6/6] cifs: Avoid doing network I/O while holding cache lock Paulo Alcantara (SUSE)

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