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authorAl Viro <viro@zeniv.linux.org.uk>2017-03-02 06:41:22 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2017-03-02 06:41:22 -0500
commit653a7746fa2f5369985f5368ffc162b6510db6c8 (patch)
treebaafa7c7db343fe10a0cf47f27b1471f3c829b7b
parentf6c99aad4d9f3521fe38e552fd2a2e12cdc52418 (diff)
parent0eb8af4916a540c362a2950e5ab54eca32eb7d58 (diff)
downloadop-kernel-dev-653a7746fa2f5369985f5368ffc162b6510db6c8.zip
op-kernel-dev-653a7746fa2f5369985f5368ffc162b6510db6c8.tar.gz
Merge remote-tracking branch 'ovl/for-viro' into for-linus
Overlayfs-related series from Miklos and Amir
-rw-r--r--drivers/block/loop.c4
-rw-r--r--drivers/gpu/drm/i915/i915_gem_dmabuf.c2
-rw-r--r--drivers/gpu/drm/vgem/vgem_drv.c2
-rw-r--r--fs/aio.c4
-rw-r--r--fs/coda/file.c2
-rw-r--r--fs/namei.c68
-rw-r--r--fs/open.c14
-rw-r--r--fs/read_write.c130
-rw-r--r--fs/splice.c2
-rw-r--r--fs/sync.c2
-rw-r--r--include/linux/fs.h52
-rw-r--r--ipc/shm.c4
-rw-r--r--mm/mmap.c2
-rw-r--r--mm/nommu.c4
14 files changed, 158 insertions, 134 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 3043771..f52b88b 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -501,9 +501,9 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
cmd->iocb.ki_flags = IOCB_DIRECT;
if (rw == WRITE)
- ret = file->f_op->write_iter(&cmd->iocb, &iter);
+ ret = call_write_iter(file, &cmd->iocb, &iter);
else
- ret = file->f_op->read_iter(&cmd->iocb, &iter);
+ ret = call_read_iter(file, &cmd->iocb, &iter);
if (ret != -EIOCBQUEUED)
cmd->iocb.ki_complete(&cmd->iocb, ret, 0);
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index d037adc..29bb801 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -141,7 +141,7 @@ static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *
if (!obj->base.filp)
return -ENODEV;
- ret = obj->base.filp->f_op->mmap(obj->base.filp, vma);
+ ret = call_mmap(obj->base.filp, vma);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 477e07f..9f7e222 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -287,7 +287,7 @@ static int vgem_prime_mmap(struct drm_gem_object *obj,
if (!obj->filp)
return -ENODEV;
- ret = obj->filp->f_op->mmap(obj->filp, vma);
+ ret = call_mmap(obj->filp, vma);
if (ret)
return ret;
diff --git a/fs/aio.c b/fs/aio.c
index 873b4ca..63e97f3 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1495,7 +1495,7 @@ static ssize_t aio_read(struct kiocb *req, struct iocb *iocb, bool vectored,
return ret;
ret = rw_verify_area(READ, file, &req->ki_pos, iov_iter_count(&iter));
if (!ret)
- ret = aio_ret(req, file->f_op->read_iter(req, &iter));
+ ret = aio_ret(req, call_read_iter(file, req, &iter));
kfree(iovec);
return ret;
}
@@ -1520,7 +1520,7 @@ static ssize_t aio_write(struct kiocb *req, struct iocb *iocb, bool vectored,
if (!ret) {
req->ki_flags |= IOCB_WRITE;
file_start_write(file);
- ret = aio_ret(req, file->f_op->write_iter(req, &iter));
+ ret = aio_ret(req, call_write_iter(file, req, &iter));
/*
* We release freeze protection in aio_complete(). Fool lockdep
* by telling it the lock got released so that it doesn't
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 6e0154e..9d956cd 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -96,7 +96,7 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
cfi->cfi_mapcount++;
spin_unlock(&cii->c_lock);
- return host_file->f_op->mmap(host_file, vma);
+ return call_mmap(host_file, vma);
}
int coda_open(struct inode *coda_inode, struct file *coda_file)
diff --git a/fs/namei.c b/fs/namei.c
index 07e292b..d41fab7 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3363,13 +3363,50 @@ out:
return error;
}
+struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag)
+{
+ static const struct qstr name = QSTR_INIT("/", 1);
+ struct dentry *child = NULL;
+ struct inode *dir = dentry->d_inode;
+ struct inode *inode;
+ int error;
+
+ /* we want directory to be writable */
+ error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
+ if (error)
+ goto out_err;
+ error = -EOPNOTSUPP;
+ if (!dir->i_op->tmpfile)
+ goto out_err;
+ error = -ENOMEM;
+ child = d_alloc(dentry, &name);
+ if (unlikely(!child))
+ goto out_err;
+ error = dir->i_op->tmpfile(dir, child, mode);
+ if (error)
+ goto out_err;
+ error = -ENOENT;
+ inode = child->d_inode;
+ if (unlikely(!inode))
+ goto out_err;
+ if (!(open_flag & O_EXCL)) {
+ spin_lock(&inode->i_lock);
+ inode->i_state |= I_LINKABLE;
+ spin_unlock(&inode->i_lock);
+ }
+ return child;
+
+out_err:
+ dput(child);
+ return ERR_PTR(error);
+}
+EXPORT_SYMBOL(vfs_tmpfile);
+
static int do_tmpfile(struct nameidata *nd, unsigned flags,
const struct open_flags *op,
struct file *file, int *opened)
{
- static const struct qstr name = QSTR_INIT("/", 1);
struct dentry *child;
- struct inode *dir;
struct path path;
int error = path_lookupat(nd, flags | LOOKUP_DIRECTORY, &path);
if (unlikely(error))
@@ -3377,25 +3414,12 @@ static int do_tmpfile(struct nameidata *nd, unsigned flags,
error = mnt_want_write(path.mnt);
if (unlikely(error))
goto out;
- dir = path.dentry->d_inode;
- /* we want directory to be writable */
- error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
- if (error)
- goto out2;
- if (!dir->i_op->tmpfile) {
- error = -EOPNOTSUPP;
- goto out2;
- }
- child = d_alloc(path.dentry, &name);
- if (unlikely(!child)) {
- error = -ENOMEM;
+ child = vfs_tmpfile(path.dentry, op->mode, op->open_flag);
+ error = PTR_ERR(child);
+ if (unlikely(IS_ERR(child)))
goto out2;
- }
dput(path.dentry);
path.dentry = child;
- error = dir->i_op->tmpfile(dir, child, op->mode);
- if (error)
- goto out2;
audit_inode(nd->name, child, 0);
/* Don't check for other permissions, the inode was just created */
error = may_open(&path, 0, op->open_flag);
@@ -3406,14 +3430,8 @@ static int do_tmpfile(struct nameidata *nd, unsigned flags,
if (error)
goto out2;
error = open_check_o_direct(file);
- if (error) {
+ if (error)
fput(file);
- } else if (!(op->open_flag & O_EXCL)) {
- struct inode *inode = file_inode(file);
- spin_lock(&inode->i_lock);
- inode->i_state |= I_LINKABLE;
- spin_unlock(&inode->i_lock);
- }
out2:
mnt_drop_write(path.mnt);
out:
diff --git a/fs/open.c b/fs/open.c
index 9921f70..949cef2 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -301,12 +301,10 @@ int vfs_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
if (S_ISFIFO(inode->i_mode))
return -ESPIPE;
- /*
- * Let individual file system decide if it supports preallocation
- * for directories or not.
- */
- if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) &&
- !S_ISBLK(inode->i_mode))
+ if (S_ISDIR(inode->i_mode))
+ return -EISDIR;
+
+ if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
return -ENODEV;
/* Check for wrap through zero too */
@@ -316,7 +314,7 @@ int vfs_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
if (!file->f_op->fallocate)
return -EOPNOTSUPP;
- sb_start_write(inode->i_sb);
+ file_start_write(file);
ret = file->f_op->fallocate(file, mode, offset, len);
/*
@@ -329,7 +327,7 @@ int vfs_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
if (ret == 0)
fsnotify_modify(file);
- sb_end_write(inode->i_sb);
+ file_end_write(file);
return ret;
}
EXPORT_SYMBOL_GPL(vfs_fallocate);
diff --git a/fs/read_write.c b/fs/read_write.c
index 5816d4c..f2ed9fd 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -23,9 +23,6 @@
#include <linux/uaccess.h>
#include <asm/unistd.h>
-typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
-typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
-
const struct file_operations generic_ro_fops = {
.llseek = generic_file_llseek,
.read_iter = generic_file_read_iter,
@@ -370,7 +367,7 @@ ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos)
kiocb.ki_pos = *ppos;
iter->type |= READ;
- ret = file->f_op->read_iter(&kiocb, iter);
+ ret = call_read_iter(file, &kiocb, iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ret > 0)
*ppos = kiocb.ki_pos;
@@ -390,7 +387,7 @@ ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos)
kiocb.ki_pos = *ppos;
iter->type |= WRITE;
- ret = file->f_op->write_iter(&kiocb, iter);
+ ret = call_write_iter(file, &kiocb, iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ret > 0)
*ppos = kiocb.ki_pos;
@@ -439,7 +436,7 @@ static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo
kiocb.ki_pos = *ppos;
iov_iter_init(&iter, READ, &iov, 1, len);
- ret = filp->f_op->read_iter(&kiocb, &iter);
+ ret = call_read_iter(filp, &kiocb, &iter);
BUG_ON(ret == -EIOCBQUEUED);
*ppos = kiocb.ki_pos;
return ret;
@@ -496,7 +493,7 @@ static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t
kiocb.ki_pos = *ppos;
iov_iter_init(&iter, WRITE, &iov, 1, len);
- ret = filp->f_op->write_iter(&kiocb, &iter);
+ ret = call_write_iter(filp, &kiocb, &iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ret > 0)
*ppos = kiocb.ki_pos;
@@ -675,7 +672,7 @@ unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to)
EXPORT_SYMBOL(iov_shorten);
static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
- loff_t *ppos, iter_fn_t fn, int flags)
+ loff_t *ppos, int type, int flags)
{
struct kiocb kiocb;
ssize_t ret;
@@ -692,7 +689,10 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
kiocb.ki_flags |= (IOCB_DSYNC | IOCB_SYNC);
kiocb.ki_pos = *ppos;
- ret = fn(&kiocb, iter);
+ if (type == READ)
+ ret = call_read_iter(filp, &kiocb, iter);
+ else
+ ret = call_write_iter(filp, &kiocb, iter);
BUG_ON(ret == -EIOCBQUEUED);
*ppos = kiocb.ki_pos;
return ret;
@@ -700,7 +700,7 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
/* Do it by hand, with file-ops */
static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
- loff_t *ppos, io_fn_t fn, int flags)
+ loff_t *ppos, int type, int flags)
{
ssize_t ret = 0;
@@ -711,7 +711,13 @@ static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
struct iovec iovec = iov_iter_iovec(iter);
ssize_t nr;
- nr = fn(filp, iovec.iov_base, iovec.iov_len, ppos);
+ if (type == READ) {
+ nr = filp->f_op->read(filp, iovec.iov_base,
+ iovec.iov_len, ppos);
+ } else {
+ nr = filp->f_op->write(filp, iovec.iov_base,
+ iovec.iov_len, ppos);
+ }
if (nr < 0) {
if (!ret)
@@ -834,50 +840,32 @@ out:
return ret;
}
-static ssize_t do_readv_writev(int type, struct file *file,
- const struct iovec __user * uvector,
- unsigned long nr_segs, loff_t *pos,
- int flags)
+static ssize_t __do_readv_writev(int type, struct file *file,
+ struct iov_iter *iter, loff_t *pos, int flags)
{
size_t tot_len;
- struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov = iovstack;
- struct iov_iter iter;
- ssize_t ret;
- io_fn_t fn;
- iter_fn_t iter_fn;
-
- ret = import_iovec(type, uvector, nr_segs,
- ARRAY_SIZE(iovstack), &iov, &iter);
- if (ret < 0)
- return ret;
+ ssize_t ret = 0;
- tot_len = iov_iter_count(&iter);
+ tot_len = iov_iter_count(iter);
if (!tot_len)
goto out;
ret = rw_verify_area(type, file, pos, tot_len);
if (ret < 0)
goto out;
- if (type == READ) {
- fn = file->f_op->read;
- iter_fn = file->f_op->read_iter;
- } else {
- fn = (io_fn_t)file->f_op->write;
- iter_fn = file->f_op->write_iter;
+ if (type != READ)
file_start_write(file);
- }
- if (iter_fn)
- ret = do_iter_readv_writev(file, &iter, pos, iter_fn, flags);
+ if ((type == READ && file->f_op->read_iter) ||
+ (type == WRITE && file->f_op->write_iter))
+ ret = do_iter_readv_writev(file, iter, pos, type, flags);
else
- ret = do_loop_readv_writev(file, &iter, pos, fn, flags);
+ ret = do_loop_readv_writev(file, iter, pos, type, flags);
if (type != READ)
file_end_write(file);
out:
- kfree(iov);
if ((ret + (type == READ)) > 0) {
if (type == READ)
fsnotify_access(file);
@@ -887,6 +875,27 @@ out:
return ret;
}
+static ssize_t do_readv_writev(int type, struct file *file,
+ const struct iovec __user *uvector,
+ unsigned long nr_segs, loff_t *pos,
+ int flags)
+{
+ struct iovec iovstack[UIO_FASTIOV];
+ struct iovec *iov = iovstack;
+ struct iov_iter iter;
+ ssize_t ret;
+
+ ret = import_iovec(type, uvector, nr_segs,
+ ARRAY_SIZE(iovstack), &iov, &iter);
+ if (ret < 0)
+ return ret;
+
+ ret = __do_readv_writev(type, file, &iter, pos, flags);
+ kfree(iov);
+
+ return ret;
+}
+
ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
unsigned long vlen, loff_t *pos, int flags)
{
@@ -1064,51 +1073,19 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
unsigned long nr_segs, loff_t *pos,
int flags)
{
- compat_ssize_t tot_len;
struct iovec iovstack[UIO_FASTIOV];
struct iovec *iov = iovstack;
struct iov_iter iter;
ssize_t ret;
- io_fn_t fn;
- iter_fn_t iter_fn;
ret = compat_import_iovec(type, uvector, nr_segs,
UIO_FASTIOV, &iov, &iter);
if (ret < 0)
return ret;
- tot_len = iov_iter_count(&iter);
- if (!tot_len)
- goto out;
- ret = rw_verify_area(type, file, pos, tot_len);
- if (ret < 0)
- goto out;
-
- if (type == READ) {
- fn = file->f_op->read;
- iter_fn = file->f_op->read_iter;
- } else {
- fn = (io_fn_t)file->f_op->write;
- iter_fn = file->f_op->write_iter;
- file_start_write(file);
- }
-
- if (iter_fn)
- ret = do_iter_readv_writev(file, &iter, pos, iter_fn, flags);
- else
- ret = do_loop_readv_writev(file, &iter, pos, fn, flags);
-
- if (type != READ)
- file_end_write(file);
-
-out:
+ ret = __do_readv_writev(type, file, &iter, pos, flags);
kfree(iov);
- if ((ret + (type == READ)) > 0) {
- if (type == READ)
- fsnotify_access(file);
- else
- fsnotify_modify(file);
- }
+
return ret;
}
@@ -1518,6 +1495,11 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
if (flags != 0)
return -EINVAL;
+ if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode))
+ return -EISDIR;
+ if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode))
+ return -EINVAL;
+
ret = rw_verify_area(READ, file_in, &pos_in, len);
if (unlikely(ret))
return ret;
@@ -1538,7 +1520,7 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
if (len == 0)
return 0;
- sb_start_write(inode_out->i_sb);
+ file_start_write(file_out);
/*
* Try cloning first, this is supported by more file systems, and
@@ -1574,7 +1556,7 @@ done:
inc_syscr(current);
inc_syscw(current);
- sb_end_write(inode_out->i_sb);
+ file_end_write(file_out);
return ret;
}
diff --git a/fs/splice.c b/fs/splice.c
index 4ef78aa..eaafa3d 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -307,7 +307,7 @@ ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,
idx = to.idx;
init_sync_kiocb(&kiocb, in);
kiocb.ki_pos = *ppos;
- ret = in->f_op->read_iter(&kiocb, &to);
+ ret = call_read_iter(in, &kiocb, &to);
if (ret > 0) {
*ppos = kiocb.ki_pos;
file_accessed(in);
diff --git a/fs/sync.c b/fs/sync.c
index 2a54c1f..11ba023 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -192,7 +192,7 @@ int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
spin_unlock(&inode->i_lock);
mark_inode_dirty_sync(inode);
}
- return file->f_op->fsync(file, start, end, datasync);
+ return call_fsync(file, start, end, datasync);
}
EXPORT_SYMBOL(vfs_fsync_range);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c930cbc..f45809c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1562,6 +1562,9 @@ extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **, unsigned int);
extern int vfs_whiteout(struct inode *, struct dentry *);
+extern struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode,
+ int open_flag);
+
/*
* VFS file helper functions.
*/
@@ -1713,6 +1716,29 @@ struct inode_operations {
int (*set_acl)(struct inode *, struct posix_acl *, int);
} ____cacheline_aligned;
+static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,
+ struct iov_iter *iter)
+{
+ return file->f_op->read_iter(kio, iter);
+}
+
+static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,
+ struct iov_iter *iter)
+{
+ return file->f_op->write_iter(kio, iter);
+}
+
+static inline int call_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ return file->f_op->mmap(file, vma);
+}
+
+static inline int call_fsync(struct file *file, loff_t start, loff_t end,
+ int datasync)
+{
+ return file->f_op->fsync(file, start, end, datasync);
+}
+
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
unsigned long nr_segs, unsigned long fast_segs,
struct iovec *fast_pointer,
@@ -1739,19 +1765,6 @@ extern int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff,
extern int vfs_dedupe_file_range(struct file *file,
struct file_dedupe_range *same);
-static inline int do_clone_file_range(struct file *file_in, loff_t pos_in,
- struct file *file_out, loff_t pos_out,
- u64 len)
-{
- int ret;
-
- sb_start_write(file_inode(file_out)->i_sb);
- ret = vfs_clone_file_range(file_in, pos_in, file_out, pos_out, len);
- sb_end_write(file_inode(file_out)->i_sb);
-
- return ret;
-}
-
struct super_operations {
struct inode *(*alloc_inode)(struct super_block *sb);
void (*destroy_inode)(struct inode *);
@@ -2563,6 +2576,19 @@ static inline void file_end_write(struct file *file)
__sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE);
}
+static inline int do_clone_file_range(struct file *file_in, loff_t pos_in,
+ struct file *file_out, loff_t pos_out,
+ u64 len)
+{
+ int ret;
+
+ file_start_write(file_out);
+ ret = vfs_clone_file_range(file_in, pos_in, file_out, pos_out, len);
+ file_end_write(file_out);
+
+ return ret;
+}
+
/*
* get_write_access() gets write permission for a file.
* put_write_access() releases this write permission.
diff --git a/ipc/shm.c b/ipc/shm.c
index 81203e8..258aff2 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -423,7 +423,7 @@ static int shm_mmap(struct file *file, struct vm_area_struct *vma)
if (ret)
return ret;
- ret = sfd->file->f_op->mmap(sfd->file, vma);
+ ret = call_mmap(sfd->file, vma);
if (ret) {
shm_close(vma);
return ret;
@@ -452,7 +452,7 @@ static int shm_fsync(struct file *file, loff_t start, loff_t end, int datasync)
if (!sfd->file->f_op->fsync)
return -EINVAL;
- return sfd->file->f_op->fsync(sfd->file, start, end, datasync);
+ return call_fsync(sfd->file, start, end, datasync);
}
static long shm_fallocate(struct file *file, int mode, loff_t offset,
diff --git a/mm/mmap.c b/mm/mmap.c
index b729084..2ffca21 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1668,7 +1668,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
* new file must not have been exposed to user-space, yet.
*/
vma->vm_file = get_file(file);
- error = file->f_op->mmap(file, vma);
+ error = call_mmap(file, vma);
if (error)
goto unmap_and_free_vma;
diff --git a/mm/nommu.c b/mm/nommu.c
index bc964c2..782e83a 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1084,7 +1084,7 @@ static int do_mmap_shared_file(struct vm_area_struct *vma)
{
int ret;
- ret = vma->vm_file->f_op->mmap(vma->vm_file, vma);
+ ret = call_mmap(vma->vm_file, vma);
if (ret == 0) {
vma->vm_region->vm_top = vma->vm_region->vm_end;
return 0;
@@ -1115,7 +1115,7 @@ static int do_mmap_private(struct vm_area_struct *vma,
* - VM_MAYSHARE will be set if it may attempt to share
*/
if (capabilities & NOMMU_MAP_DIRECT) {
- ret = vma->vm_file->f_op->mmap(vma->vm_file, vma);
+ ret = call_mmap(vma->vm_file, vma);
if (ret == 0) {
/* shouldn't return success if we're not sharing */
BUG_ON(!(vma->vm_flags & VM_MAYSHARE));
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