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Diffstat (limited to 'fs/jffs2/malloc.c')
-rw-r--r--fs/jffs2/malloc.c68
1 files changed, 66 insertions, 2 deletions
diff --git a/fs/jffs2/malloc.c b/fs/jffs2/malloc.c
index 036cbd11c004..3d5b7ecfbf8d 100644
--- a/fs/jffs2/malloc.c
+++ b/fs/jffs2/malloc.c
@@ -26,6 +26,10 @@ static kmem_cache_t *tmp_dnode_info_slab;
26static kmem_cache_t *raw_node_ref_slab; 26static kmem_cache_t *raw_node_ref_slab;
27static kmem_cache_t *node_frag_slab; 27static kmem_cache_t *node_frag_slab;
28static kmem_cache_t *inode_cache_slab; 28static kmem_cache_t *inode_cache_slab;
29#ifdef CONFIG_JFFS2_FS_XATTR
30static kmem_cache_t *xattr_datum_cache;
31static kmem_cache_t *xattr_ref_cache;
32#endif
29 33
30int __init jffs2_create_slab_caches(void) 34int __init jffs2_create_slab_caches(void)
31{ 35{
@@ -68,8 +72,24 @@ int __init jffs2_create_slab_caches(void)
68 inode_cache_slab = kmem_cache_create("jffs2_inode_cache", 72 inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
69 sizeof(struct jffs2_inode_cache), 73 sizeof(struct jffs2_inode_cache),
70 0, 0, NULL, NULL); 74 0, 0, NULL, NULL);
71 if (inode_cache_slab) 75 if (!inode_cache_slab)
72 return 0; 76 goto err;
77
78#ifdef CONFIG_JFFS2_FS_XATTR
79 xattr_datum_cache = kmem_cache_create("jffs2_xattr_datum",
80 sizeof(struct jffs2_xattr_datum),
81 0, 0, NULL, NULL);
82 if (!xattr_datum_cache)
83 goto err;
84
85 xattr_ref_cache = kmem_cache_create("jffs2_xattr_ref",
86 sizeof(struct jffs2_xattr_ref),
87 0, 0, NULL, NULL);
88 if (!xattr_ref_cache)
89 goto err;
90#endif
91
92 return 0;
73 err: 93 err:
74 jffs2_destroy_slab_caches(); 94 jffs2_destroy_slab_caches();
75 return -ENOMEM; 95 return -ENOMEM;
@@ -91,6 +111,12 @@ void jffs2_destroy_slab_caches(void)
91 kmem_cache_destroy(node_frag_slab); 111 kmem_cache_destroy(node_frag_slab);
92 if(inode_cache_slab) 112 if(inode_cache_slab)
93 kmem_cache_destroy(inode_cache_slab); 113 kmem_cache_destroy(inode_cache_slab);
114#ifdef CONFIG_JFFS2_FS_XATTR
115 if (xattr_datum_cache)
116 kmem_cache_destroy(xattr_datum_cache);
117 if (xattr_ref_cache)
118 kmem_cache_destroy(xattr_ref_cache);
119#endif
94} 120}
95 121
96struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize) 122struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
@@ -205,3 +231,41 @@ void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
205 dbg_memalloc("%p\n", x); 231 dbg_memalloc("%p\n", x);
206 kmem_cache_free(inode_cache_slab, x); 232 kmem_cache_free(inode_cache_slab, x);
207} 233}
234
235#ifdef CONFIG_JFFS2_FS_XATTR
236struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void)
237{
238 struct jffs2_xattr_datum *xd;
239 xd = kmem_cache_alloc(xattr_datum_cache, GFP_KERNEL);
240 dbg_memalloc("%p\n", xd);
241
242 memset(xd, 0, sizeof(struct jffs2_xattr_datum));
243 xd->class = RAWNODE_CLASS_XATTR_DATUM;
244 INIT_LIST_HEAD(&xd->xindex);
245 return xd;
246}
247
248void jffs2_free_xattr_datum(struct jffs2_xattr_datum *xd)
249{
250 dbg_memalloc("%p\n", xd);
251 kmem_cache_free(xattr_datum_cache, xd);
252}
253
254struct jffs2_xattr_ref *jffs2_alloc_xattr_ref(void)
255{
256 struct jffs2_xattr_ref *ref;
257 ref = kmem_cache_alloc(xattr_ref_cache, GFP_KERNEL);
258 dbg_memalloc("%p\n", ref);
259
260 memset(ref, 0, sizeof(struct jffs2_xattr_ref));
261 ref->class = RAWNODE_CLASS_XATTR_REF;
262 INIT_LIST_HEAD(&ref->ilist);
263 return ref;
264}
265
266void jffs2_free_xattr_ref(struct jffs2_xattr_ref *ref)
267{
268 dbg_memalloc("%p\n", ref);
269 kmem_cache_free(xattr_ref_cache, ref);
270}
271#endif