aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-03-02 15:20:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-03-02 15:20:00 -0800
commit94e877d0fb43bec0540d6a37d49cb4f7f05a5348 (patch)
treedc301912dff9c390cba59df00cb76b62ac862d6a /include/linux
parent69fd110eb650ea7baa82158f3b89a7d86da1d056 (diff)
parent653a7746fa2f5369985f5368ffc162b6510db6c8 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile two from Al Viro: - orangefs fix - series of fs/namei.c cleanups from me - VFS stuff coming from overlayfs tree * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: orangefs: Use RCU for destroy_inode vfs: use helper for calling f_op->fsync() mm: use helper for calling f_op->mmap() vfs: use helpers for calling f_op->{read,write}_iter() vfs: pass type instead of fn to do_{loop,iter}_readv_writev() vfs: extract common parts of {compat_,}do_readv_writev() vfs: wrap write f_ops with file_{start,end}_write() vfs: deny copy_file_range() for non regular files vfs: deny fallocate() on directory vfs: create vfs helper vfs_tmpfile() namei.c: split unlazy_walk() namei.c: fold the check for DCACHE_OP_REVALIDATE into d_revalidate() lookup_fast(): clean up the logics around the fallback to non-rcu mode namei: fold unlazy_link() into its sole caller
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/fs.h52
1 files changed, 39 insertions, 13 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c64f2cb7d364..52350947c670 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1567,6 +1567,9 @@ 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.
*/
@@ -1718,6 +1721,29 @@ 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,
@@ -1744,19 +1770,6 @@ 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 *);
@@ -2568,6 +2581,19 @@ 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.

Privacy Policy