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-rw-r--r--fs/9p/vfs_inode.c5
-rw-r--r--fs/affs/inode.c2
-rw-r--r--fs/afs/dir.c2
-rw-r--r--fs/aio.c5
-rw-r--r--fs/anon_inodes.c5
-rw-r--r--fs/bfs/dir.c2
-rw-r--r--fs/block_dev.c8
-rw-r--r--fs/btrfs/inode.c2
-rw-r--r--fs/coda/dir.c2
-rw-r--r--fs/exofs/namei.c2
-rw-r--r--fs/ext2/namei.c2
-rw-r--r--fs/ext3/namei.c2
-rw-r--r--fs/ext4/namei.c2
-rw-r--r--fs/gfs2/ops_inode.c2
-rw-r--r--fs/hfsplus/dir.c2
-rw-r--r--fs/inode.c9
-rw-r--r--fs/jffs2/dir.c4
-rw-r--r--fs/jfs/jfs_txnmgr.c2
-rw-r--r--fs/jfs/namei.c2
-rw-r--r--fs/libfs.c2
-rw-r--r--fs/logfs/dir.c2
-rw-r--r--fs/minix/namei.c2
-rw-r--r--fs/namei.c2
-rw-r--r--fs/nfs/dir.c2
-rw-r--r--fs/nfs/getroot.c3
-rw-r--r--fs/nilfs2/namei.c2
-rw-r--r--fs/ntfs/super.c4
-rw-r--r--fs/ocfs2/namei.c2
-rw-r--r--fs/reiserfs/namei.c2
-rw-r--r--fs/sysv/namei.c2
-rw-r--r--fs/ubifs/dir.c2
-rw-r--r--fs/udf/namei.c2
-rw-r--r--fs/ufs/namei.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c2
-rw-r--r--fs/xfs/xfs_inode.h2
-rw-r--r--include/linux/fs.h1
-rw-r--r--ipc/mqueue.c2
-rw-r--r--kernel/futex.c2
-rw-r--r--mm/shmem.c2
-rw-r--r--net/socket.c2
40 files changed, 57 insertions, 49 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 9e670d527646..ef5905f7c8a3 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1789,9 +1789,10 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
1789 kfree(st); 1789 kfree(st);
1790 } else { 1790 } else {
1791 /* Caching disabled. No need to get upto date stat info. 1791 /* Caching disabled. No need to get upto date stat info.
1792 * This dentry will be released immediately. So, just i_count++ 1792 * This dentry will be released immediately. So, just hold the
1793 * inode
1793 */ 1794 */
1794 atomic_inc(&old_dentry->d_inode->i_count); 1795 ihold(old_dentry->d_inode);
1795 } 1796 }
1796 1797
1797 dentry->d_op = old_dentry->d_op; 1798 dentry->d_op = old_dentry->d_op;
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 3a0fdec175ba..5d828903ac69 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -388,7 +388,7 @@ affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s3
388 affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain)); 388 affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain));
389 mark_buffer_dirty_inode(inode_bh, inode); 389 mark_buffer_dirty_inode(inode_bh, inode);
390 inode->i_nlink = 2; 390 inode->i_nlink = 2;
391 atomic_inc(&inode->i_count); 391 ihold(inode);
392 } 392 }
393 affs_fix_checksum(sb, bh); 393 affs_fix_checksum(sb, bh);
394 mark_buffer_dirty_inode(bh, inode); 394 mark_buffer_dirty_inode(bh, inode);
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 0d38c09bd55e..5439e1bc9a86 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -1045,7 +1045,7 @@ static int afs_link(struct dentry *from, struct inode *dir,
1045 if (ret < 0) 1045 if (ret < 0)
1046 goto link_error; 1046 goto link_error;
1047 1047
1048 atomic_inc(&vnode->vfs_inode.i_count); 1048 ihold(&vnode->vfs_inode);
1049 d_instantiate(dentry, &vnode->vfs_inode); 1049 d_instantiate(dentry, &vnode->vfs_inode);
1050 key_put(key); 1050 key_put(key);
1051 _leave(" = 0"); 1051 _leave(" = 0");
diff --git a/fs/aio.c b/fs/aio.c
index 9e319a04780e..8c8f6c5b6d79 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1553,10 +1553,9 @@ static void aio_batch_add(struct address_space *mapping,
1553 * 1553 *
1554 * When we're called, we always have a reference 1554 * When we're called, we always have a reference
1555 * on the file, so we must always have a reference 1555 * on the file, so we must always have a reference
1556 * on the inode, so igrab must always just 1556 * on the inode, so ihold() is safe here.
1557 * bump the count and move on.
1558 */ 1557 */
1559 atomic_inc(&mapping->host->i_count); 1558 ihold(mapping->host);
1560 abe->mapping = mapping; 1559 abe->mapping = mapping;
1561 hlist_add_head(&abe->list, &batch_hash[bucket]); 1560 hlist_add_head(&abe->list, &batch_hash[bucket]);
1562 return; 1561 return;
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index e4b75d6eda83..9c8e87b0361f 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -111,10 +111,9 @@ struct file *anon_inode_getfile(const char *name,
111 path.mnt = mntget(anon_inode_mnt); 111 path.mnt = mntget(anon_inode_mnt);
112 /* 112 /*
113 * We know the anon_inode inode count is always greater than zero, 113 * We know the anon_inode inode count is always greater than zero,
114 * so we can avoid doing an igrab() and we can use an open-coded 114 * so ihold() is safe.
115 * atomic_inc().
116 */ 115 */
117 atomic_inc(&anon_inode_inode->i_count); 116 ihold(anon_inode_inode);
118 117
119 path.dentry->d_op = &anon_inodefs_dentry_operations; 118 path.dentry->d_op = &anon_inodefs_dentry_operations;
120 d_instantiate(path.dentry, anon_inode_inode); 119 d_instantiate(path.dentry, anon_inode_inode);
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index d967e052b779..685ecff3ab31 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -176,7 +176,7 @@ static int bfs_link(struct dentry *old, struct inode *dir,
176 inc_nlink(inode); 176 inc_nlink(inode);
177 inode->i_ctime = CURRENT_TIME_SEC; 177 inode->i_ctime = CURRENT_TIME_SEC;
178 mark_inode_dirty(inode); 178 mark_inode_dirty(inode);
179 atomic_inc(&inode->i_count); 179 ihold(inode);
180 d_instantiate(new, inode); 180 d_instantiate(new, inode);
181 mutex_unlock(&info->bfs_lock); 181 mutex_unlock(&info->bfs_lock);
182 return 0; 182 return 0;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index b737451e2e9d..81972eb34b39 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -550,7 +550,7 @@ EXPORT_SYMBOL(bdget);
550 */ 550 */
551struct block_device *bdgrab(struct block_device *bdev) 551struct block_device *bdgrab(struct block_device *bdev)
552{ 552{
553 atomic_inc(&bdev->bd_inode->i_count); 553 ihold(bdev->bd_inode);
554 return bdev; 554 return bdev;
555} 555}
556 556
@@ -580,7 +580,7 @@ static struct block_device *bd_acquire(struct inode *inode)
580 spin_lock(&bdev_lock); 580 spin_lock(&bdev_lock);
581 bdev = inode->i_bdev; 581 bdev = inode->i_bdev;
582 if (bdev) { 582 if (bdev) {
583 atomic_inc(&bdev->bd_inode->i_count); 583 ihold(bdev->bd_inode);
584 spin_unlock(&bdev_lock); 584 spin_unlock(&bdev_lock);
585 return bdev; 585 return bdev;
586 } 586 }
@@ -591,12 +591,12 @@ static struct block_device *bd_acquire(struct inode *inode)
591 spin_lock(&bdev_lock); 591 spin_lock(&bdev_lock);
592 if (!inode->i_bdev) { 592 if (!inode->i_bdev) {
593 /* 593 /*
594 * We take an additional bd_inode->i_count for inode, 594 * We take an additional reference to bd_inode,
595 * and it's released in clear_inode() of inode. 595 * and it's released in clear_inode() of inode.
596 * So, we can access it via ->i_mapping always 596 * So, we can access it via ->i_mapping always
597 * without igrab(). 597 * without igrab().
598 */ 598 */
599 atomic_inc(&bdev->bd_inode->i_count); 599 ihold(bdev->bd_inode);
600 inode->i_bdev = bdev; 600 inode->i_bdev = bdev;
601 inode->i_mapping = bdev->bd_inode->i_mapping; 601 inode->i_mapping = bdev->bd_inode->i_mapping;
602 list_add(&inode->i_devices, &bdev->bd_inodes); 602 list_add(&inode->i_devices, &bdev->bd_inodes);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f6f2a0da2695..64f99cf69ce0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4758,7 +4758,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
4758 } 4758 }
4759 4759
4760 btrfs_set_trans_block_group(trans, dir); 4760 btrfs_set_trans_block_group(trans, dir);
4761 atomic_inc(&inode->i_count); 4761 ihold(inode);
4762 4762
4763 err = btrfs_add_nondir(trans, dentry, inode, 1, index); 4763 err = btrfs_add_nondir(trans, dentry, inode, 1, index);
4764 4764
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 96fbeab77f2f..5d8b35539601 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -276,7 +276,7 @@ static int coda_link(struct dentry *source_de, struct inode *dir_inode,
276 } 276 }
277 277
278 coda_dir_update_mtime(dir_inode); 278 coda_dir_update_mtime(dir_inode);
279 atomic_inc(&inode->i_count); 279 ihold(inode);
280 d_instantiate(de, inode); 280 d_instantiate(de, inode);
281 inc_nlink(inode); 281 inc_nlink(inode);
282 return 0; 282 return 0;
diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c
index b7dd0c236863..264e95d02830 100644
--- a/fs/exofs/namei.c
+++ b/fs/exofs/namei.c
@@ -153,7 +153,7 @@ static int exofs_link(struct dentry *old_dentry, struct inode *dir,
153 153
154 inode->i_ctime = CURRENT_TIME; 154 inode->i_ctime = CURRENT_TIME;
155 inode_inc_link_count(inode); 155 inode_inc_link_count(inode);
156 atomic_inc(&inode->i_count); 156 ihold(inode);
157 157
158 return exofs_add_nondir(dentry, inode); 158 return exofs_add_nondir(dentry, inode);
159} 159}
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 71efb0e9a3f2..f8aecd2e3297 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -206,7 +206,7 @@ static int ext2_link (struct dentry * old_dentry, struct inode * dir,
206 206
207 inode->i_ctime = CURRENT_TIME_SEC; 207 inode->i_ctime = CURRENT_TIME_SEC;
208 inode_inc_link_count(inode); 208 inode_inc_link_count(inode);
209 atomic_inc(&inode->i_count); 209 ihold(inode);
210 210
211 err = ext2_add_link(dentry, inode); 211 err = ext2_add_link(dentry, inode);
212 if (!err) { 212 if (!err) {
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 2b35ddb70d65..bce9dce639b8 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -2260,7 +2260,7 @@ retry:
2260 2260
2261 inode->i_ctime = CURRENT_TIME_SEC; 2261 inode->i_ctime = CURRENT_TIME_SEC;
2262 inc_nlink(inode); 2262 inc_nlink(inode);
2263 atomic_inc(&inode->i_count); 2263 ihold(inode);
2264 2264
2265 err = ext3_add_entry(handle, dentry, inode); 2265 err = ext3_add_entry(handle, dentry, inode);
2266 if (!err) { 2266 if (!err) {
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 314c0d3b3fa9..bd39885b5998 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2312,7 +2312,7 @@ retry:
2312 2312
2313 inode->i_ctime = ext4_current_time(inode); 2313 inode->i_ctime = ext4_current_time(inode);
2314 ext4_inc_count(handle, inode); 2314 ext4_inc_count(handle, inode);
2315 atomic_inc(&inode->i_count); 2315 ihold(inode);
2316 2316
2317 err = ext4_add_entry(handle, dentry, inode); 2317 err = ext4_add_entry(handle, dentry, inode);
2318 if (!err) { 2318 if (!err) {
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 48a274f1674c..12cbea7502c2 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -255,7 +255,7 @@ out_parent:
255 gfs2_holder_uninit(ghs); 255 gfs2_holder_uninit(ghs);
256 gfs2_holder_uninit(ghs + 1); 256 gfs2_holder_uninit(ghs + 1);
257 if (!error) { 257 if (!error) {
258 atomic_inc(&inode->i_count); 258 ihold(inode);
259 d_instantiate(dentry, inode); 259 d_instantiate(dentry, inode);
260 mark_inode_dirty(inode); 260 mark_inode_dirty(inode);
261 } 261 }
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index d236d85ec9d7..e318bbc0daf6 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -286,7 +286,7 @@ static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir,
286 286
287 inc_nlink(inode); 287 inc_nlink(inode);
288 hfsplus_instantiate(dst_dentry, inode, cnid); 288 hfsplus_instantiate(dst_dentry, inode, cnid);
289 atomic_inc(&inode->i_count); 289 ihold(inode);
290 inode->i_ctime = CURRENT_TIME_SEC; 290 inode->i_ctime = CURRENT_TIME_SEC;
291 mark_inode_dirty(inode); 291 mark_inode_dirty(inode);
292 sbi->file_count++; 292 sbi->file_count++;
diff --git a/fs/inode.c b/fs/inode.c
index 430d70f2abe7..05ea293d5f32 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -320,6 +320,15 @@ void __iget(struct inode *inode)
320 atomic_inc(&inode->i_count); 320 atomic_inc(&inode->i_count);
321} 321}
322 322
323/*
324 * get additional reference to inode; caller must already hold one.
325 */
326void ihold(struct inode *inode)
327{
328 WARN_ON(atomic_inc_return(&inode->i_count) < 2);
329}
330EXPORT_SYMBOL(ihold);
331
323static void inode_lru_list_add(struct inode *inode) 332static void inode_lru_list_add(struct inode *inode)
324{ 333{
325 if (list_empty(&inode->i_list)) { 334 if (list_empty(&inode->i_list)) {
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index ed78a3cf3cb0..79121aa5858b 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -289,7 +289,7 @@ static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct de
289 mutex_unlock(&f->sem); 289 mutex_unlock(&f->sem);
290 d_instantiate(dentry, old_dentry->d_inode); 290 d_instantiate(dentry, old_dentry->d_inode);
291 dir_i->i_mtime = dir_i->i_ctime = ITIME(now); 291 dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
292 atomic_inc(&old_dentry->d_inode->i_count); 292 ihold(old_dentry->d_inode);
293 } 293 }
294 return ret; 294 return ret;
295} 295}
@@ -864,7 +864,7 @@ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
864 printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret); 864 printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
865 /* Might as well let the VFS know */ 865 /* Might as well let the VFS know */
866 d_instantiate(new_dentry, old_dentry->d_inode); 866 d_instantiate(new_dentry, old_dentry->d_inode);
867 atomic_inc(&old_dentry->d_inode->i_count); 867 ihold(old_dentry->d_inode);
868 new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now); 868 new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now);
869 return ret; 869 return ret;
870 } 870 }
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index d945ea76b445..9466957ec841 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -1279,7 +1279,7 @@ int txCommit(tid_t tid, /* transaction identifier */
1279 * lazy commit thread finishes processing 1279 * lazy commit thread finishes processing
1280 */ 1280 */
1281 if (tblk->xflag & COMMIT_DELETE) { 1281 if (tblk->xflag & COMMIT_DELETE) {
1282 atomic_inc(&tblk->u.ip->i_count); 1282 ihold(tblk->u.ip);
1283 /* 1283 /*
1284 * Avoid a rare deadlock 1284 * Avoid a rare deadlock
1285 * 1285 *
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index a9cf8e8675be..231ca4af9bce 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -839,7 +839,7 @@ static int jfs_link(struct dentry *old_dentry,
839 ip->i_ctime = CURRENT_TIME; 839 ip->i_ctime = CURRENT_TIME;
840 dir->i_ctime = dir->i_mtime = CURRENT_TIME; 840 dir->i_ctime = dir->i_mtime = CURRENT_TIME;
841 mark_inode_dirty(dir); 841 mark_inode_dirty(dir);
842 atomic_inc(&ip->i_count); 842 ihold(ip);
843 843
844 iplist[0] = ip; 844 iplist[0] = ip;
845 iplist[1] = dir; 845 iplist[1] = dir;
diff --git a/fs/libfs.c b/fs/libfs.c
index 2dbf4877d7ef..304a5132ca27 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -255,7 +255,7 @@ int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *den
255 255
256 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME; 256 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
257 inc_nlink(inode); 257 inc_nlink(inode);
258 atomic_inc(&inode->i_count); 258 ihold(inode);
259 dget(dentry); 259 dget(dentry);
260 d_instantiate(dentry, inode); 260 d_instantiate(dentry, inode);
261 return 0; 261 return 0;
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index 1eb4e89e045b..409dfd65e9a1 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -569,7 +569,7 @@ static int logfs_link(struct dentry *old_dentry, struct inode *dir,
569 return -EMLINK; 569 return -EMLINK;
570 570
571 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME; 571 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
572 atomic_inc(&inode->i_count); 572 ihold(inode);
573 inode->i_nlink++; 573 inode->i_nlink++;
574 mark_inode_dirty_sync(inode); 574 mark_inode_dirty_sync(inode);
575 575
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index f3f3578393a4..c0d35a3accef 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -101,7 +101,7 @@ static int minix_link(struct dentry * old_dentry, struct inode * dir,
101 101
102 inode->i_ctime = CURRENT_TIME_SEC; 102 inode->i_ctime = CURRENT_TIME_SEC;
103 inode_inc_link_count(inode); 103 inode_inc_link_count(inode);
104 atomic_inc(&inode->i_count); 104 ihold(inode);
105 return add_nondir(dentry, inode); 105 return add_nondir(dentry, inode);
106} 106}
107 107
diff --git a/fs/namei.c b/fs/namei.c
index f1ef97dbc6c4..f7dbc06857ab 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2285,7 +2285,7 @@ static long do_unlinkat(int dfd, const char __user *pathname)
2285 goto slashes; 2285 goto slashes;
2286 inode = dentry->d_inode; 2286 inode = dentry->d_inode;
2287 if (inode) 2287 if (inode)
2288 atomic_inc(&inode->i_count); 2288 ihold(inode);
2289 error = mnt_want_write(nd.path.mnt); 2289 error = mnt_want_write(nd.path.mnt);
2290 if (error) 2290 if (error)
2291 goto exit2; 2291 goto exit2;
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index e257172d438c..0fac7fea18ef 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1580,7 +1580,7 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
1580 d_drop(dentry); 1580 d_drop(dentry);
1581 error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name); 1581 error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
1582 if (error == 0) { 1582 if (error == 0) {
1583 atomic_inc(&inode->i_count); 1583 ihold(inode);
1584 d_add(dentry, inode); 1584 d_add(dentry, inode);
1585 } 1585 }
1586 return error; 1586 return error;
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index a70e446e1605..ac7b814ce162 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -54,8 +54,7 @@ static int nfs_superblock_set_dummy_root(struct super_block *sb, struct inode *i
54 iput(inode); 54 iput(inode);
55 return -ENOMEM; 55 return -ENOMEM;
56 } 56 }
57 /* Circumvent igrab(): we know the inode is not being freed */ 57 ihold(inode);
58 atomic_inc(&inode->i_count);
59 /* 58 /*
60 * Ensure that this dentry is invisible to d_find_alias(). 59 * Ensure that this dentry is invisible to d_find_alias().
61 * Otherwise, it may be spliced into the tree by 60 * Otherwise, it may be spliced into the tree by
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index 185d1607cb00..6e9557ecf161 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -207,7 +207,7 @@ static int nilfs_link(struct dentry *old_dentry, struct inode *dir,
207 207
208 inode->i_ctime = CURRENT_TIME; 208 inode->i_ctime = CURRENT_TIME;
209 inode_inc_link_count(inode); 209 inode_inc_link_count(inode);
210 atomic_inc(&inode->i_count); 210 ihold(inode);
211 211
212 err = nilfs_add_nondir(dentry, inode); 212 err = nilfs_add_nondir(dentry, inode);
213 if (!err) 213 if (!err)
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index d4dec2d32117..d3fbe5730bfc 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2911,8 +2911,8 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
2911 goto unl_upcase_iput_tmp_ino_err_out_now; 2911 goto unl_upcase_iput_tmp_ino_err_out_now;
2912 } 2912 }
2913 if ((sb->s_root = d_alloc_root(vol->root_ino))) { 2913 if ((sb->s_root = d_alloc_root(vol->root_ino))) {
2914 /* We increment i_count simulating an ntfs_iget(). */ 2914 /* We grab a reference, simulating an ntfs_iget(). */
2915 atomic_inc(&vol->root_ino->i_count); 2915 ihold(vol->root_ino);
2916 ntfs_debug("Exiting, status successful."); 2916 ntfs_debug("Exiting, status successful.");
2917 /* Release the default upcase if it has no users. */ 2917 /* Release the default upcase if it has no users. */
2918 mutex_lock(&ntfs_lock); 2918 mutex_lock(&ntfs_lock);
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index e7bde21149ae..ff5744e1e36f 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -742,7 +742,7 @@ static int ocfs2_link(struct dentry *old_dentry,
742 goto out_commit; 742 goto out_commit;
743 } 743 }
744 744
745 atomic_inc(&inode->i_count); 745 ihold(inode);
746 dentry->d_op = &ocfs2_dentry_ops; 746 dentry->d_op = &ocfs2_dentry_ops;
747 d_instantiate(dentry, inode); 747 d_instantiate(dentry, inode);
748 748
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index ee78d4a0086a..ba5f51ec3458 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -1156,7 +1156,7 @@ static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
1156 inode->i_ctime = CURRENT_TIME_SEC; 1156 inode->i_ctime = CURRENT_TIME_SEC;
1157 reiserfs_update_sd(&th, inode); 1157 reiserfs_update_sd(&th, inode);
1158 1158
1159 atomic_inc(&inode->i_count); 1159 ihold(inode);
1160 d_instantiate(dentry, inode); 1160 d_instantiate(dentry, inode);
1161 retval = journal_end(&th, dir->i_sb, jbegin_count); 1161 retval = journal_end(&th, dir->i_sb, jbegin_count);
1162 reiserfs_write_unlock(dir->i_sb); 1162 reiserfs_write_unlock(dir->i_sb);
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 33e047b59b8d..11e7f7d11cd0 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -126,7 +126,7 @@ static int sysv_link(struct dentry * old_dentry, struct inode * dir,
126 126
127 inode->i_ctime = CURRENT_TIME_SEC; 127 inode->i_ctime = CURRENT_TIME_SEC;
128 inode_inc_link_count(inode); 128 inode_inc_link_count(inode);
129 atomic_inc(&inode->i_count); 129 ihold(inode);
130 130
131 return add_nondir(dentry, inode); 131 return add_nondir(dentry, inode);
132} 132}
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 87ebcce72213..14f64b689d7f 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -550,7 +550,7 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir,
550 550
551 lock_2_inodes(dir, inode); 551 lock_2_inodes(dir, inode);
552 inc_nlink(inode); 552 inc_nlink(inode);
553 atomic_inc(&inode->i_count); 553 ihold(inode);
554 inode->i_ctime = ubifs_current_time(inode); 554 inode->i_ctime = ubifs_current_time(inode);
555 dir->i_size += sz_change; 555 dir->i_size += sz_change;
556 dir_ui->ui_size = dir->i_size; 556 dir_ui->ui_size = dir->i_size;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index bf5fc674193c..6d8dc02baebb 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -1101,7 +1101,7 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
1101 inc_nlink(inode); 1101 inc_nlink(inode);
1102 inode->i_ctime = current_fs_time(inode->i_sb); 1102 inode->i_ctime = current_fs_time(inode->i_sb);
1103 mark_inode_dirty(inode); 1103 mark_inode_dirty(inode);
1104 atomic_inc(&inode->i_count); 1104 ihold(inode);
1105 d_instantiate(dentry, inode); 1105 d_instantiate(dentry, inode);
1106 unlock_kernel(); 1106 unlock_kernel();
1107 1107
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index b056f02b1fb3..12f39b9e4437 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -180,7 +180,7 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
180 180
181 inode->i_ctime = CURRENT_TIME_SEC; 181 inode->i_ctime = CURRENT_TIME_SEC;
182 inode_inc_link_count(inode); 182 inode_inc_link_count(inode);
183 atomic_inc(&inode->i_count); 183 ihold(inode);
184 184
185 error = ufs_add_nondir(dentry, inode); 185 error = ufs_add_nondir(dentry, inode);
186 unlock_kernel(); 186 unlock_kernel();
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 71d83c93621c..96107efc0c61 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -317,7 +317,7 @@ xfs_vn_link(
317 if (unlikely(error)) 317 if (unlikely(error))
318 return -error; 318 return -error;
319 319
320 atomic_inc(&inode->i_count); 320 ihold(inode);
321 d_instantiate(dentry, inode); 321 d_instantiate(dentry, inode);
322 return 0; 322 return 0;
323} 323}
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index fac52290de90..fb2ca2e4cdc9 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -500,7 +500,7 @@ void xfs_mark_inode_dirty_sync(xfs_inode_t *);
500#define IHOLD(ip) \ 500#define IHOLD(ip) \
501do { \ 501do { \
502 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \ 502 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
503 atomic_inc(&(VFS_I(ip)->i_count)); \ 503 ihold(VFS_I(ip)); \
504 trace_xfs_ihold(ip, _THIS_IP_); \ 504 trace_xfs_ihold(ip, _THIS_IP_); \
505} while (0) 505} while (0)
506 506
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d43e8b6685a2..bd6ae6c71fc8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2171,6 +2171,7 @@ extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
2171 2171
2172extern int inode_init_always(struct super_block *, struct inode *); 2172extern int inode_init_always(struct super_block *, struct inode *);
2173extern void inode_init_once(struct inode *); 2173extern void inode_init_once(struct inode *);
2174extern void ihold(struct inode * inode);
2174extern void iput(struct inode *); 2175extern void iput(struct inode *);
2175extern struct inode * igrab(struct inode *); 2176extern struct inode * igrab(struct inode *);
2176extern ino_t iunique(struct super_block *, ino_t); 2177extern ino_t iunique(struct super_block *, ino_t);
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index e1e7b9635f5d..80b35ffca25d 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -769,7 +769,7 @@ SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
769 769
770 inode = dentry->d_inode; 770 inode = dentry->d_inode;
771 if (inode) 771 if (inode)
772 atomic_inc(&inode->i_count); 772 ihold(inode);
773 err = mnt_want_write(ipc_ns->mq_mnt); 773 err = mnt_want_write(ipc_ns->mq_mnt);
774 if (err) 774 if (err)
775 goto out_err; 775 goto out_err;
diff --git a/kernel/futex.c b/kernel/futex.c
index a118bf160e0b..6c683b37f2ce 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -169,7 +169,7 @@ static void get_futex_key_refs(union futex_key *key)
169 169
170 switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) { 170 switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) {
171 case FUT_OFF_INODE: 171 case FUT_OFF_INODE:
172 atomic_inc(&key->shared.inode->i_count); 172 ihold(key->shared.inode);
173 break; 173 break;
174 case FUT_OFF_MMSHARED: 174 case FUT_OFF_MMSHARED:
175 atomic_inc(&key->private.mm->mm_count); 175 atomic_inc(&key->private.mm->mm_count);
diff --git a/mm/shmem.c b/mm/shmem.c
index 27a58120dbd5..d4e2852526e6 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1903,7 +1903,7 @@ static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentr
1903 dir->i_size += BOGO_DIRENT_SIZE; 1903 dir->i_size += BOGO_DIRENT_SIZE;
1904 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME; 1904 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
1905 inc_nlink(inode); 1905 inc_nlink(inode);
1906 atomic_inc(&inode->i_count); /* New dentry reference */ 1906 ihold(inode); /* New dentry reference */
1907 dget(dentry); /* Extra pinning count for the created dentry */ 1907 dget(dentry); /* Extra pinning count for the created dentry */
1908 d_instantiate(dentry, inode); 1908 d_instantiate(dentry, inode);
1909out: 1909out:
diff --git a/net/socket.c b/net/socket.c
index abf3e2561521..d223725f99e5 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -377,7 +377,7 @@ static int sock_alloc_file(struct socket *sock, struct file **f, int flags)
377 &socket_file_ops); 377 &socket_file_ops);
378 if (unlikely(!file)) { 378 if (unlikely(!file)) {
379 /* drop dentry, keep inode */ 379 /* drop dentry, keep inode */
380 atomic_inc(&path.dentry->d_inode->i_count); 380 ihold(path.dentry->d_inode);
381 path_put(&path); 381 path_put(&path);
382 put_unused_fd(fd); 382 put_unused_fd(fd);
383 return -ENFILE; 383 return -ENFILE;