[PATCH] switch all filesystems over to d_obtain_alias
Switch all users of d_alloc_anon to d_obtain_alias.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/dcache.c b/fs/dcache.c
index 46fc782..d45ff7f 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1187,17 +1187,17 @@
* allocating a new one.
*
* On successful return, the reference to the inode has been transferred
- * to the dentry. If %NULL is returned (indicating kmalloc failure),
- * the reference on the inode has been released. To make it easier
- * to use in export operations a NULL or IS_ERR inode may be passed in
- * and will be casted to the corresponding NULL or IS_ERR dentry.
+ * to the dentry. In case of an error the reference on the inode is released.
+ * To make it easier to use in export operations a %NULL or IS_ERR inode may
+ * be passed in and will be the error will be propagate to the return value,
+ * with a %NULL @inode replaced by ERR_PTR(-ESTALE).
*/
struct dentry *d_obtain_alias(struct inode *inode)
{
struct dentry *dentry;
if (!inode)
- return NULL;
+ return ERR_PTR(-ESTALE);
if (IS_ERR(inode))
return ERR_CAST(inode);
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 291abb1..c3fb5f9 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -112,35 +112,14 @@
struct dentry *efs_get_parent(struct dentry *child)
{
- struct dentry *parent;
- struct inode *inode;
+ struct dentry *parent = ERR_PTR(-ENOENT);
efs_ino_t ino;
- long error;
lock_kernel();
-
- error = -ENOENT;
ino = efs_find_entry(child->d_inode, "..", 2);
- if (!ino)
- goto fail;
-
- inode = efs_iget(child->d_inode->i_sb, ino);
- if (IS_ERR(inode)) {
- error = PTR_ERR(inode);
- goto fail;
- }
-
- error = -ENOMEM;
- parent = d_alloc_anon(inode);
- if (!parent)
- goto fail_iput;
-
+ if (ino)
+ parent = d_obtain_alias(efs_iget(child->d_inode->i_sb, ino));
unlock_kernel();
+
return parent;
-
- fail_iput:
- iput(inode);
- fail:
- unlock_kernel();
- return ERR_PTR(error);
}
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index cc91227..7b0f75d 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -366,8 +366,6 @@
* Try to get any dentry for the given file handle from the filesystem.
*/
result = nop->fh_to_dentry(mnt->mnt_sb, fid, fh_len, fileid_type);
- if (!result)
- result = ERR_PTR(-ESTALE);
if (IS_ERR(result))
return result;
@@ -422,8 +420,6 @@
target_dir = nop->fh_to_parent(mnt->mnt_sb, fid,
fh_len, fileid_type);
- if (!target_dir)
- goto err_result;
err = PTR_ERR(target_dir);
if (IS_ERR(target_dir))
goto err_result;
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 80c97fd..a1b328a 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -73,8 +73,6 @@
struct dentry *ext2_get_parent(struct dentry *child)
{
unsigned long ino;
- struct dentry *parent;
- struct inode *inode;
struct dentry dotdot;
dotdot.d_name.name = "..";
@@ -83,16 +81,7 @@
ino = ext2_inode_by_name(child->d_inode, &dotdot);
if (!ino)
return ERR_PTR(-ENOENT);
- inode = ext2_iget(child->d_inode->i_sb, ino);
-
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
- return parent;
+ return d_obtain_alias(ext2_iget(child->d_inode->i_sb, ino));
}
/*
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index de13e91..880b544 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1057,8 +1057,6 @@
struct dentry *ext3_get_parent(struct dentry *child)
{
unsigned long ino;
- struct dentry *parent;
- struct inode *inode;
struct dentry dotdot;
struct ext3_dir_entry_2 * de;
struct buffer_head *bh;
@@ -1068,7 +1066,6 @@
dotdot.d_parent = child; /* confusing, isn't it! */
bh = ext3_find_entry(&dotdot, &de);
- inode = NULL;
if (!bh)
return ERR_PTR(-ENOENT);
ino = le32_to_cpu(de->inode);
@@ -1080,16 +1077,7 @@
return ERR_PTR(-EIO);
}
- inode = ext3_iget(child->d_inode->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
-
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
- return parent;
+ return d_obtain_alias(ext3_iget(child->d_inode->i_sb, ino));
}
#define S_SHIFT 12
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 92db9e9..5b93a7d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1083,16 +1083,7 @@
return ERR_PTR(-EIO);
}
- inode = ext4_iget(child->d_inode->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
-
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
- return parent;
+ return d_obtain_alias(ext4_iget(child->d_inode->i_sb, ino));
}
#define S_SHIFT 12
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index d12cdf2..19eafbe 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -681,33 +681,24 @@
inode = NULL;
}
}
- if (!inode) {
- /* For now, do nothing
- * What we could do is:
- * follow the file starting at fh[4], and record
- * the ".." entry, and the name of the fh[2] entry.
- * The follow the ".." file finding the next step up.
- * This way we build a path to the root of
- * the tree. If this works, we lookup the path and so
- * get this inode into the cache.
- * Finally try the fat_iget lookup again
- * If that fails, then weare totally out of luck
- * But all that is for another day
- */
- }
- if (!inode)
- return ERR_PTR(-ESTALE);
-
- /* now to find a dentry.
- * If possible, get a well-connected one
+ /*
+ * For now, do nothing if the inode is not found.
+ *
+ * What we could do is:
+ *
+ * - follow the file starting at fh[4], and record the ".." entry,
+ * and the name of the fh[2] entry.
+ * - then follow the ".." file finding the next step up.
+ *
+ * This way we build a path to the root of the tree. If this works, we
+ * lookup the path and so get this inode into the cache. Finally try
+ * the fat_iget lookup again. If that fails, then we are totally out
+ * of luck. But all that is for another day
*/
- result = d_alloc_anon(inode);
- if (result == NULL) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- result->d_op = sb->s_root->d_op;
+ result = d_obtain_alias(inode);
+ if (!IS_ERR(result))
+ result->d_op = sb->s_root->d_op;
return result;
}
@@ -754,15 +745,8 @@
}
inode = fat_build_inode(sb, de, i_pos);
brelse(bh);
- if (IS_ERR(inode)) {
- parent = ERR_CAST(inode);
- goto out;
- }
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
+
+ parent = d_obtain_alias(inode);
out:
unlock_super(sb);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 54b1f0e..2e99f34 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -596,12 +596,8 @@
if (inode->i_generation != handle->generation)
goto out_iput;
- entry = d_alloc_anon(inode);
- err = -ENOMEM;
- if (!entry)
- goto out_iput;
-
- if (get_node_id(inode) != FUSE_ROOT_ID) {
+ entry = d_obtain_alias(inode);
+ if (!IS_ERR(entry) && get_node_id(inode) != FUSE_ROOT_ID) {
entry->d_op = &fuse_dentry_operations;
fuse_invalidate_entry_cache(entry);
}
@@ -696,17 +692,14 @@
name.name = "..";
err = fuse_lookup_name(child_inode->i_sb, get_node_id(child_inode),
&name, &outarg, &inode);
- if (err && err != -ENOENT)
+ if (err) {
+ if (err == -ENOENT)
+ return ERR_PTR(-ESTALE);
return ERR_PTR(err);
- if (err || !inode)
- return ERR_PTR(-ESTALE);
-
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
}
- if (get_node_id(inode) != FUSE_ROOT_ID) {
+
+ parent = d_obtain_alias(inode);
+ if (!IS_ERR(parent) && get_node_id(inode) != FUSE_ROOT_ID) {
parent->d_op = &fuse_dentry_operations;
fuse_invalidate_entry_cache(parent);
}
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 9cda853..bbb8c36 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -130,28 +130,17 @@
static struct dentry *gfs2_get_parent(struct dentry *child)
{
struct qstr dotdot;
- struct inode *inode;
struct dentry *dentry;
- gfs2_str2qstr(&dotdot, "..");
- inode = gfs2_lookupi(child->d_inode, &dotdot, 1);
-
- if (!inode)
- return ERR_PTR(-ENOENT);
/*
- * In case of an error, @inode carries the error value, and we
- * have to return that as a(n invalid) pointer to dentry.
+ * XXX(hch): it would be a good idea to keep this around as a
+ * static variable.
*/
- if (IS_ERR(inode))
- return ERR_CAST(inode);
+ gfs2_str2qstr(&dotdot, "..");
- dentry = d_alloc_anon(inode);
- if (!dentry) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
-
- dentry->d_op = &gfs2_dops;
+ dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &dotdot, 1));
+ if (!IS_ERR(dentry))
+ dentry->d_op = &gfs2_dops;
return dentry;
}
@@ -233,13 +222,9 @@
gfs2_glock_dq_uninit(&i_gh);
out_inode:
- dentry = d_alloc_anon(inode);
- if (!dentry) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
-
- dentry->d_op = &gfs2_dops;
+ dentry = d_obtain_alias(inode);
+ if (!IS_ERR(dentry))
+ dentry->d_op = &gfs2_dops;
return dentry;
fail_rgd:
diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index bb21913..e81a305 100644
--- a/fs/isofs/export.c
+++ b/fs/isofs/export.c
@@ -22,7 +22,7 @@
__u32 generation)
{
struct inode *inode;
- struct dentry *result;
+
if (block == 0)
return ERR_PTR(-ESTALE);
inode = isofs_iget(sb, block, offset);
@@ -32,12 +32,7 @@
iput(inode);
return ERR_PTR(-ESTALE);
}
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
+ return d_obtain_alias(inode);
}
/* This function is surprisingly simple. The trick is understanding
@@ -51,7 +46,6 @@
unsigned long parent_offset = 0;
struct inode *child_inode = child->d_inode;
struct iso_inode_info *e_child_inode = ISOFS_I(child_inode);
- struct inode *parent_inode = NULL;
struct iso_directory_record *de = NULL;
struct buffer_head * bh = NULL;
struct dentry *rv = NULL;
@@ -104,28 +98,11 @@
/* Normalize */
isofs_normalize_block_and_offset(de, &parent_block, &parent_offset);
- /* Get the inode. */
- parent_inode = isofs_iget(child_inode->i_sb,
- parent_block,
- parent_offset);
- if (IS_ERR(parent_inode)) {
- rv = ERR_CAST(parent_inode);
- if (rv != ERR_PTR(-ENOMEM))
- rv = ERR_PTR(-EACCES);
- goto out;
- }
-
- /* Allocate the dentry. */
- rv = d_alloc_anon(parent_inode);
- if (rv == NULL) {
- rv = ERR_PTR(-ENOMEM);
- goto out;
- }
-
+ rv = d_obtain_alias(isofs_iget(child_inode->i_sb, parent_block,
+ parent_offset));
out:
- if (bh) {
+ if (bh)
brelse(bh);
- }
return rv;
}
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 2aba823..e199dde 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1511,25 +1511,12 @@
struct dentry *jfs_get_parent(struct dentry *dentry)
{
- struct super_block *sb = dentry->d_inode->i_sb;
- struct dentry *parent = ERR_PTR(-ENOENT);
- struct inode *inode;
unsigned long parent_ino;
parent_ino =
le32_to_cpu(JFS_IP(dentry->d_inode)->i_dtroot.header.idotdot);
- inode = jfs_iget(sb, parent_ino);
- if (IS_ERR(inode)) {
- parent = ERR_CAST(inode);
- } else {
- parent = d_alloc_anon(inode);
- if (!parent) {
- parent = ERR_PTR(-ENOMEM);
- iput(inode);
- }
- }
- return parent;
+ return d_obtain_alias(jfs_iget(dentry->d_inode->i_sb, parent_ino));
}
const struct inode_operations jfs_dir_inode_operations = {
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index fae9719..b7c9b2d 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -107,11 +107,10 @@
* if the dentry tree reaches them; however if the dentry already
* exists, we'll pick it up at this point and use it as the root
*/
- mntroot = d_alloc_anon(inode);
- if (!mntroot) {
- iput(inode);
+ mntroot = d_obtain_alias(inode);
+ if (IS_ERR(mntroot)) {
dprintk("nfs_get_root: get root dentry failed\n");
- return ERR_PTR(-ENOMEM);
+ return mntroot;
}
security_d_instantiate(mntroot, inode);
@@ -277,11 +276,10 @@
* if the dentry tree reaches them; however if the dentry already
* exists, we'll pick it up at this point and use it as the root
*/
- mntroot = d_alloc_anon(inode);
- if (!mntroot) {
- iput(inode);
+ mntroot = d_obtain_alias(inode);
+ if (IS_ERR(mntroot)) {
dprintk("nfs_get_root: get root dentry failed\n");
- return ERR_PTR(-ENOMEM);
+ return mntroot;
}
security_d_instantiate(mntroot, inode);
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index 9e8a95b..2ca0015 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -304,8 +304,6 @@
ntfs_attr_search_ctx *ctx;
ATTR_RECORD *attr;
FILE_NAME_ATTR *fn;
- struct inode *parent_vi;
- struct dentry *parent_dent;
unsigned long parent_ino;
int err;
@@ -345,24 +343,8 @@
/* Release the search context and the mft record of the child. */
ntfs_attr_put_search_ctx(ctx);
unmap_mft_record(ni);
- /* Get the inode of the parent directory. */
- parent_vi = ntfs_iget(vi->i_sb, parent_ino);
- if (IS_ERR(parent_vi) || unlikely(is_bad_inode(parent_vi))) {
- if (!IS_ERR(parent_vi))
- iput(parent_vi);
- ntfs_error(vi->i_sb, "Failed to get parent directory inode "
- "0x%lx of child inode 0x%lx.", parent_ino,
- vi->i_ino);
- return ERR_PTR(-EACCES);
- }
- /* Finally get a dentry for the parent directory and return it. */
- parent_dent = d_alloc_anon(parent_vi);
- if (unlikely(!parent_dent)) {
- iput(parent_vi);
- return ERR_PTR(-ENOMEM);
- }
- ntfs_debug("Done for inode 0x%lx.", vi->i_ino);
- return parent_dent;
+
+ return d_obtain_alias(ntfs_iget(vi->i_sb, parent_ino));
}
static struct inode *ntfs_nfs_get_inode(struct super_block *sb,
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index 67527ce..2f27b33 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -68,14 +68,9 @@
return ERR_PTR(-ESTALE);
}
- result = d_alloc_anon(inode);
-
- if (!result) {
- iput(inode);
- mlog_errno(-ENOMEM);
- return ERR_PTR(-ENOMEM);
- }
- result->d_op = &ocfs2_dentry_ops;
+ result = d_obtain_alias(inode);
+ if (!IS_ERR(result))
+ result->d_op = &ocfs2_dentry_ops;
mlog_exit_ptr(result);
return result;
@@ -86,7 +81,6 @@
int status;
u64 blkno;
struct dentry *parent;
- struct inode *inode;
struct inode *dir = child->d_inode;
mlog_entry("(0x%p, '%.*s')\n", child,
@@ -109,21 +103,9 @@
goto bail_unlock;
}
- inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0);
- if (IS_ERR(inode)) {
- mlog(ML_ERROR, "Unable to create inode %llu\n",
- (unsigned long long)blkno);
- parent = ERR_PTR(-EACCES);
- goto bail_unlock;
- }
-
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
-
- parent->d_op = &ocfs2_dentry_ops;
+ parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0));
+ if (!IS_ERR(parent))
+ parent->d_op = &ocfs2_dentry_ops;
bail_unlock:
ocfs2_inode_unlock(dir, 0);
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 5699171..6c4c2c6 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1522,7 +1522,6 @@
{
struct cpu_key key;
- struct dentry *result;
struct inode *inode;
key.on_disk_key.k_objectid = objectid;
@@ -1535,16 +1534,8 @@
inode = NULL;
}
reiserfs_write_unlock(sb);
- if (!inode)
- inode = ERR_PTR(-ESTALE);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
+
+ return d_obtain_alias(inode);
}
struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index c1add28..f89ebb9 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -383,7 +383,6 @@
struct inode *inode = NULL;
struct reiserfs_dir_entry de;
INITIALIZE_PATH(path_to_entry);
- struct dentry *parent;
struct inode *dir = child->d_inode;
if (dir->i_nlink == 0) {
@@ -401,15 +400,7 @@
inode = reiserfs_iget(dir->i_sb, (struct cpu_key *)&(de.de_dir_id));
reiserfs_write_unlock(dir->i_sb);
- if (!inode || IS_ERR(inode)) {
- return ERR_PTR(-EACCES);
- }
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
- return parent;
+ return d_obtain_alias(inode);
}
/* add entry to the directory (entry can be hidden).
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index d3231947..7578fae 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -1243,7 +1243,6 @@
static struct dentry *udf_get_parent(struct dentry *child)
{
- struct dentry *parent;
struct inode *inode = NULL;
struct dentry dotdot;
struct fileIdentDesc cfi;
@@ -1266,13 +1265,7 @@
goto out_unlock;
unlock_kernel();
- parent = d_alloc_anon(inode);
- if (!parent) {
- iput(inode);
- parent = ERR_PTR(-ENOMEM);
- }
-
- return parent;
+ return d_obtain_alias(inode);
out_unlock:
unlock_kernel();
return ERR_PTR(-EACCES);
@@ -1283,7 +1276,6 @@
u16 partref, __u32 generation)
{
struct inode *inode;
- struct dentry *result;
kernel_lb_addr loc;
if (block == 0)
@@ -1300,12 +1292,7 @@
iput(inode);
return ERR_PTR(-ESTALE);
}
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
+ return d_obtain_alias(inode);
}
static struct dentry *udf_fh_to_dentry(struct super_block *sb,
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 24fd598..7f7abec 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -148,7 +148,6 @@
{
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fid;
struct inode *inode = NULL;
- struct dentry *result;
if (fh_len < xfs_fileid_length(fileid_type))
return NULL;
@@ -164,16 +163,7 @@
break;
}
- if (!inode)
- return NULL;
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
+ return d_obtain_alias(inode);
}
STATIC struct dentry *
@@ -182,7 +172,6 @@
{
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fid;
struct inode *inode = NULL;
- struct dentry *result;
switch (fileid_type) {
case FILEID_INO32_GEN_PARENT:
@@ -195,16 +184,7 @@
break;
}
- if (!inode)
- return NULL;
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- result = d_alloc_anon(inode);
- if (!result) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- return result;
+ return d_obtain_alias(inode);
}
STATIC struct dentry *
@@ -213,18 +193,12 @@
{
int error;
struct xfs_inode *cip;
- struct dentry *parent;
error = xfs_lookup(XFS_I(child->d_inode), &xfs_name_dotdot, &cip, NULL);
if (unlikely(error))
return ERR_PTR(-error);
- parent = d_alloc_anon(VFS_I(cip));
- if (unlikely(!parent)) {
- iput(VFS_I(cip));
- return ERR_PTR(-ENOMEM);
- }
- return parent;
+ return d_obtain_alias(VFS_I(cip));
}
const struct export_operations xfs_export_operations = {
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 48799ba..d3438c7 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -311,11 +311,10 @@
return new_fd;
}
- dentry = d_alloc_anon(inode);
- if (dentry == NULL) {
- iput(inode);
+ dentry = d_obtain_alias(inode);
+ if (IS_ERR(dentry)) {
put_unused_fd(new_fd);
- return -XFS_ERROR(ENOMEM);
+ return PTR_ERR(dentry);
}
/* Ensure umount returns EBUSY on umounts while this file is open. */