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-rw-r--r--fs/inode.c30
-rw-r--r--fs/xfs/xfs_iget.c17
-rw-r--r--include/linux/fs.h2
3 files changed, 23 insertions, 26 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 901bad1e5f12..af2c05235cc8 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -120,12 +120,11 @@ static void wake_up_inode(struct inode *inode)
120 * These are initializations that need to be done on every inode 120 * These are initializations that need to be done on every inode
121 * allocation as the fields are not initialised by slab allocation. 121 * allocation as the fields are not initialised by slab allocation.
122 */ 122 */
123struct inode *inode_init_always(struct super_block *sb, struct inode *inode) 123int inode_init_always(struct super_block *sb, struct inode *inode)
124{ 124{
125 static const struct address_space_operations empty_aops; 125 static const struct address_space_operations empty_aops;
126 static struct inode_operations empty_iops; 126 static struct inode_operations empty_iops;
127 static const struct file_operations empty_fops; 127 static const struct file_operations empty_fops;
128
129 struct address_space *const mapping = &inode->i_data; 128 struct address_space *const mapping = &inode->i_data;
130 129
131 inode->i_sb = sb; 130 inode->i_sb = sb;
@@ -152,7 +151,7 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode)
152 inode->dirtied_when = 0; 151 inode->dirtied_when = 0;
153 152
154 if (security_inode_alloc(inode)) 153 if (security_inode_alloc(inode))
155 goto out_free_inode; 154 goto out;
156 155
157 /* allocate and initialize an i_integrity */ 156 /* allocate and initialize an i_integrity */
158 if (ima_inode_alloc(inode)) 157 if (ima_inode_alloc(inode))
@@ -198,16 +197,12 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode)
198 inode->i_fsnotify_mask = 0; 197 inode->i_fsnotify_mask = 0;
199#endif 198#endif
200 199
201 return inode; 200 return 0;
202 201
203out_free_security: 202out_free_security:
204 security_inode_free(inode); 203 security_inode_free(inode);
205out_free_inode: 204out:
206 if (inode->i_sb->s_op->destroy_inode) 205 return -ENOMEM;
207 inode->i_sb->s_op->destroy_inode(inode);
208 else
209 kmem_cache_free(inode_cachep, (inode));
210 return NULL;
211} 206}
212EXPORT_SYMBOL(inode_init_always); 207EXPORT_SYMBOL(inode_init_always);
213 208
@@ -220,9 +215,18 @@ static struct inode *alloc_inode(struct super_block *sb)
220 else 215 else
221 inode = kmem_cache_alloc(inode_cachep, GFP_KERNEL); 216 inode = kmem_cache_alloc(inode_cachep, GFP_KERNEL);
222 217
223 if (inode) 218 if (!inode)
224 return inode_init_always(sb, inode); 219 return NULL;
225 return NULL; 220
221 if (unlikely(inode_init_always(sb, inode))) {
222 if (inode->i_sb->s_op->destroy_inode)
223 inode->i_sb->s_op->destroy_inode(inode);
224 else
225 kmem_cache_free(inode_cachep, inode);
226 return NULL;
227 }
228
229 return inode;
226} 230}
227 231
228void destroy_inode(struct inode *inode) 232void destroy_inode(struct inode *inode)
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 5fcec6f020a7..719c85b155f4 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -64,6 +64,10 @@ xfs_inode_alloc(
64 ip = kmem_zone_alloc(xfs_inode_zone, KM_SLEEP); 64 ip = kmem_zone_alloc(xfs_inode_zone, KM_SLEEP);
65 if (!ip) 65 if (!ip)
66 return NULL; 66 return NULL;
67 if (inode_init_always(mp->m_super, VFS_I(ip))) {
68 kmem_zone_free(xfs_inode_zone, ip);
69 return NULL;
70 }
67 71
68 ASSERT(atomic_read(&ip->i_iocount) == 0); 72 ASSERT(atomic_read(&ip->i_iocount) == 0);
69 ASSERT(atomic_read(&ip->i_pincount) == 0); 73 ASSERT(atomic_read(&ip->i_pincount) == 0);
@@ -105,17 +109,6 @@ xfs_inode_alloc(
105#ifdef XFS_DIR2_TRACE 109#ifdef XFS_DIR2_TRACE
106 ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS); 110 ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
107#endif 111#endif
108 /*
109 * Now initialise the VFS inode. We do this after the xfs_inode
110 * initialisation as internal failures will result in ->destroy_inode
111 * being called and that will pass down through the reclaim path and
112 * free the XFS inode. This path requires the XFS inode to already be
113 * initialised. Hence if this call fails, the xfs_inode has already
114 * been freed and we should not reference it at all in the error
115 * handling.
116 */
117 if (!inode_init_always(mp->m_super, VFS_I(ip)))
118 return NULL;
119 112
120 /* prevent anyone from using this yet */ 113 /* prevent anyone from using this yet */
121 VFS_I(ip)->i_state = I_NEW|I_LOCK; 114 VFS_I(ip)->i_state = I_NEW|I_LOCK;
@@ -167,7 +160,7 @@ xfs_iget_cache_hit(
167 * errors cleanly, then tag it so it can be set up correctly 160 * errors cleanly, then tag it so it can be set up correctly
168 * later. 161 * later.
169 */ 162 */
170 if (!inode_init_always(mp->m_super, VFS_I(ip))) { 163 if (inode_init_always(mp->m_super, VFS_I(ip))) {
171 error = ENOMEM; 164 error = ENOMEM;
172 goto out_error; 165 goto out_error;
173 } 166 }
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a36ffa5a77a4..0c3b5e58a986 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2137,7 +2137,7 @@ extern loff_t default_llseek(struct file *file, loff_t offset, int origin);
2137 2137
2138extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin); 2138extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
2139 2139
2140extern struct inode * inode_init_always(struct super_block *, struct inode *); 2140extern int inode_init_always(struct super_block *, struct inode *);
2141extern void inode_init_once(struct inode *); 2141extern void inode_init_once(struct inode *);
2142extern void inode_add_to_lists(struct super_block *, struct inode *); 2142extern void inode_add_to_lists(struct super_block *, struct inode *);
2143extern void iput(struct inode *); 2143extern void iput(struct inode *);