proc: unsigned file descriptors

Make struct proc_inode::fd unsigned.

This allows better code generation on x86_64 (less sign extensions).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 6 insertions, 6 deletions

diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 01df23cc81f6..d21dafef3102 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -31,7 +31,7 @@ static int seq_show(struct seq_file *m, void *v)
         put_task_struct(task);
 
         if (files) {
-                int fd = proc_fd(m->private);
+                unsigned int fd = proc_fd(m->private);
 
                 spin_lock(&files->file_lock);
                 file = fcheck_files(files, fd);
@@ -86,7 +86,7 @@ static int tid_fd_revalidate(struct dentry *dentry, unsigned int flags)
         struct task_struct *task;
         const struct cred *cred;
         struct inode *inode;
-        int fd;
+        unsigned int fd;
 
         if (flags & LOOKUP_RCU)
                 return -ECHILD;
@@ -158,7 +158,7 @@ static int proc_fd_link(struct dentry *dentry, struct path *path)
         }
 
         if (files) {
-                int fd = proc_fd(d_inode(dentry));
+                unsigned int fd = proc_fd(d_inode(dentry));
                 struct file *fd_file;
 
                 spin_lock(&files->file_lock);
@@ -253,7 +253,7 @@ static int proc_readfd_common(struct file *file, struct dir_context *ctx,
                         continue;
                 rcu_read_unlock();
 
-                len = snprintf(name, sizeof(name), "%d", fd);
+                len = snprintf(name, sizeof(name), "%u", fd);
                 if (!proc_fill_cache(file, ctx,
                                      name, len, instantiate, p,
                                      (void *)(unsigned long)fd))
diff --git a/fs/proc/fd.h b/fs/proc/fd.h
index 7c047f256ae2..46dafadd0083 100644
--- a/fs/proc/fd.h
+++ b/fs/proc/fd.h
@@ -11,7 +11,7 @@ extern const struct inode_operations proc_fdinfo_inode_operations;
 
 extern int proc_fd_permission(struct inode *inode, int mask);
 
-static inline int proc_fd(struct inode *inode)
+static inline unsigned int proc_fd(struct inode *inode)
 {
         return PROC_I(inode)->fd;
 }
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 7931c558c192..5378441ec1b7 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -60,7 +60,7 @@ union proc_op {
 
 struct proc_inode {
         struct pid *pid;
-        int fd;
+        unsigned int fd;
         union proc_op op;
         struct proc_dir_entry *pde;
         struct ctl_table_header *sysctl;