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authorAl Viro <viro@zeniv.linux.org.uk>2013-06-07 09:20:27 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-06-29 12:57:10 +0400
commit60545d0d4610b02e55f65d141c95b18ccf855b6e (patch)
tree252111eed41e5f54a7bd13b054420f750cb5e069 /mm
parentf9652e10c12b43d9bb957269745cf2fa5682fa92 (diff)
downloadlinux-60545d0d4610b02e55f65d141c95b18ccf855b6e.tar.xz
[O_TMPFILE] it's still short a few helpers, but infrastructure should be OK now...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm')
-rw-r--r--mm/shmem.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 5e6a8422658b..f887358dabc5 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1965,6 +1965,37 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
return error;
}
+static int
+shmem_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
+{
+ struct inode *inode;
+ int error = -ENOSPC;
+
+ inode = shmem_get_inode(dir->i_sb, dir, mode, 0, VM_NORESERVE);
+ if (inode) {
+ error = security_inode_init_security(inode, dir,
+ NULL,
+ shmem_initxattrs, NULL);
+ if (error) {
+ if (error != -EOPNOTSUPP) {
+ iput(inode);
+ return error;
+ }
+ }
+#ifdef CONFIG_TMPFS_POSIX_ACL
+ error = generic_acl_init(inode, dir);
+ if (error) {
+ iput(inode);
+ return error;
+ }
+#else
+ error = 0;
+#endif
+ d_tmpfile(dentry, inode);
+ }
+ return error;
+}
+
static int shmem_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int error;
@@ -2723,6 +2754,7 @@ static const struct inode_operations shmem_dir_inode_operations = {
.rmdir = shmem_rmdir,
.mknod = shmem_mknod,
.rename = shmem_rename,
+ .tmpfile = shmem_tmpfile,
#endif
#ifdef CONFIG_TMPFS_XATTR
.setxattr = shmem_setxattr,