a7y18lte-ubports/android_kernel_samsung_universal7885
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hugetlb_file_setup(): use d_alloc_pseudo()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-02-14 22:39:53 -05:00
parent 3451538a11
commit 0df4d6e5bd
1 changed files with 15 additions and 4 deletions
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19
fs/hugetlbfs/inode.c
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@ -918,6 +918,16 @@ static int get_hstate_idx(int page_size_log)
return h - hstates; return h - hstates;
} }
static char *hugetlb_dname(struct dentry *dentry, char *buffer, int buflen)
{
return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)",
dentry->d_name.name);
}
static struct dentry_operations anon_ops = {
.d_dname = hugetlb_dname
};
struct file *hugetlb_file_setup(const char *name, unsigned long addr, struct file *hugetlb_file_setup(const char *name, unsigned long addr,
size_t size, vm_flags_t acctflag, size_t size, vm_flags_t acctflag,
struct user_struct **user, struct user_struct **user,
@ -926,7 +936,7 @@ struct file *hugetlb_file_setup(const char *name, unsigned long addr,
struct file *file = ERR_PTR(-ENOMEM); struct file *file = ERR_PTR(-ENOMEM);
struct inode *inode; struct inode *inode;
struct path path; struct path path;
struct dentry *root; struct super_block *sb;
struct qstr quick_string; struct qstr quick_string;
struct hstate *hstate; struct hstate *hstate;
unsigned long num_pages; unsigned long num_pages;
@ -954,17 +964,18 @@ struct file *hugetlb_file_setup(const char *name, unsigned long addr,
} }
} }
root = hugetlbfs_vfsmount[hstate_idx]->mnt_root; sb = hugetlbfs_vfsmount[hstate_idx]->mnt_sb;
quick_string.name = name; quick_string.name = name;
quick_string.len = strlen(quick_string.name); quick_string.len = strlen(quick_string.name);
quick_string.hash = 0; quick_string.hash = 0;
path.dentry = d_alloc(root, &quick_string); path.dentry = d_alloc_pseudo(sb, &quick_string);
if (!path.dentry) if (!path.dentry)
goto out_shm_unlock; goto out_shm_unlock;
d_set_d_op(path.dentry, &anon_ops);
path.mnt = mntget(hugetlbfs_vfsmount[hstate_idx]); path.mnt = mntget(hugetlbfs_vfsmount[hstate_idx]);
file = ERR_PTR(-ENOSPC); file = ERR_PTR(-ENOSPC);
inode = hugetlbfs_get_inode(root->d_sb, NULL, S_IFREG | S_IRWXUGO, 0); inode = hugetlbfs_get_inode(sb, NULL, S_IFREG | S_IRWXUGO, 0);
if (!inode) if (!inode)
goto out_dentry; goto out_dentry;