diff options
Diffstat (limited to 'fs/hugetlbfs/inode.c')
-rw-r--r-- | fs/hugetlbfs/inode.c | 52 |
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); } |