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Diffstat (limited to 'fs/hugetlbfs/inode.c')
-rw-r--r--fs/hugetlbfs/inode.c52
1 files changed, 26 insertions, 26 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 6903d37af03..a93b885311d 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -26,11 +26,11 @@
#include <linux/pagevec.h>
#include <linux/parser.h>
#include <linux/mman.h>
-#include <linux/quotaops.h>
#include <linux/slab.h>
#include <linux/dnotify.h>
#include <linux/statfs.h>
#include <linux/security.h>
+#include <linux/ima.h>
#include <asm/uaccess.h>
@@ -44,6 +44,7 @@ static const struct inode_operations hugetlbfs_dir_inode_operations;
static const struct inode_operations hugetlbfs_inode_operations;
static struct backing_dev_info hugetlbfs_backing_dev_info = {
+ .name = "hugetlbfs",
.ra_pages = 0, /* No readahead */
.capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
};
@@ -108,7 +109,8 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
if (hugetlb_reserve_pages(inode,
vma->vm_pgoff >> huge_page_order(h),
- len >> huge_page_shift(h), vma))
+ len >> huge_page_shift(h), vma,
+ vma->vm_flags))
goto out;
ret = 0;
@@ -312,16 +314,6 @@ out:
return retval;
}
-/*
- * Read a page. Again trivial. If it didn't already exist
- * in the page cache, it is zero-filled.
- */
-static int hugetlbfs_readpage(struct file *file, struct page * page)
-{
- unlock_page(page);
- return -EINVAL;
-}
-
static int hugetlbfs_write_begin(struct file *file,
struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
@@ -701,7 +693,6 @@ static void hugetlbfs_destroy_inode(struct inode *inode)
}
static const struct address_space_operations hugetlbfs_aops = {
- .readpage = hugetlbfs_readpage,
.write_begin = hugetlbfs_write_begin,
.write_end = hugetlbfs_write_end,
.set_page_dirty = hugetlbfs_set_page_dirty,
@@ -841,7 +832,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
bad_val:
printk(KERN_ERR "hugetlbfs: Bad value '%s' for mount option '%s'\n",
args[0].from, p);
- return 1;
+ return -EINVAL;
}
static int
@@ -942,28 +933,32 @@ static struct vfsmount *hugetlbfs_vfsmount;
static int can_do_hugetlb_shm(void)
{
- return likely(capable(CAP_IPC_LOCK) ||
- in_group_p(sysctl_hugetlb_shm_group) ||
- can_do_mlock());
+ return capable(CAP_IPC_LOCK) || in_group_p(sysctl_hugetlb_shm_group);
}
-struct file *hugetlb_file_setup(const char *name, size_t size)
+struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
+ struct user_struct **user)
{
int error = -ENOMEM;
struct file *file;
struct inode *inode;
struct dentry *dentry, *root;
struct qstr quick_string;
- struct user_struct *user = current_user();
+ *user = NULL;
if (!hugetlbfs_vfsmount)
return ERR_PTR(-ENOENT);
- if (!can_do_hugetlb_shm())
- return ERR_PTR(-EPERM);
-
- if (!user_shm_lock(size, user))
- return ERR_PTR(-ENOMEM);
+ if (!can_do_hugetlb_shm()) {
+ *user = current_user();
+ if (user_shm_lock(size, *user)) {
+ WARN_ONCE(1,
+ "Using mlock ulimits for SHM_HUGETLB deprecated\n");
+ } else {
+ *user = NULL;
+ return ERR_PTR(-EPERM);
+ }
+ }
root = hugetlbfs_vfsmount->mnt_root;
quick_string.name = name;
@@ -981,7 +976,8 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
error = -ENOMEM;
if (hugetlb_reserve_pages(inode, 0,
- size >> huge_page_shift(hstate_inode(inode)), NULL))
+ size >> huge_page_shift(hstate_inode(inode)), NULL,
+ acctflag))
goto out_inode;
d_instantiate(dentry, inode);
@@ -994,6 +990,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
&hugetlbfs_file_operations);
if (!file)
goto out_dentry; /* inode is already attached */
+ ima_counts_get(file);
return file;
@@ -1002,7 +999,10 @@ out_inode:
out_dentry:
dput(dentry);
out_shm_unlock:
- user_shm_unlock(size, user);
+ if (*user) {
+ user_shm_unlock(size, *user);
+ *user = NULL;
+ }
return ERR_PTR(error);
}