Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile (part one) from Al Viro:
 "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
  locking violations, etc.

  The most visible changes here are death of FS_REVAL_DOT (replaced with
  "has ->d_weak_revalidate()") and a new helper getting from struct file
  to inode.  Some bits of preparation to xattr method interface changes.

  Misc patches by various people sent this cycle *and* ocfs2 fixes from
  several cycles ago that should've been upstream right then.

  PS: the next vfs pile will be xattr stuff."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
  saner proc_get_inode() calling conventions
  proc: avoid extra pde_put() in proc_fill_super()
  fs: change return values from -EACCES to -EPERM
  fs/exec.c: make bprm_mm_init() static
  ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
  ocfs2: fix possible use-after-free with AIO
  ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
  get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
  target: writev() on single-element vector is pointless
  export kernel_write(), convert open-coded instances
  fs: encode_fh: return FILEID_INVALID if invalid fid_type
  kill f_vfsmnt
  vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
  nfsd: handle vfs_getattr errors in acl protocol
  switch vfs_getattr() to struct path
  default SET_PERSONALITY() in linux/elf.h
  ceph: prepopulate inodes only when request is aborted
  d_hash_and_lookup(): export, switch open-coded instances
  9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
  9p: split dropping the acls from v9fs_set_create_acl()
  ...

4 files changed, 20 insertions, 21 deletions

diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index 4767774a5f3e..9973df4ff565 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -37,10 +37,10 @@ static int gfs2_encode_fh(struct inode *inode, __u32 *p, int *len,
 
         if (parent && (*len < GFS2_LARGE_FH_SIZE)) {
                 *len = GFS2_LARGE_FH_SIZE;
-                return 255;
+                return FILEID_INVALID;
         } else if (*len < GFS2_SMALL_FH_SIZE) {
                 *len = GFS2_SMALL_FH_SIZE;
-                return 255;
+                return FILEID_INVALID;
         }
 
         fh[0] = cpu_to_be32(ip->i_no_formal_ino >> 32);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 2687f50d98cb..019f45e45097 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -157,7 +157,7 @@ static const u32 gfs2_to_fsflags[32] = {
 
 static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
 {
-        struct inode *inode = filp->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_holder gh;
         int error;
@@ -217,7 +217,7 @@ void gfs2_set_inode_flags(struct inode *inode)
  */
 static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 {
-        struct inode *inode = filp->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         struct buffer_head *bh;
@@ -293,7 +293,7 @@ out_drop_write:
 
 static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
 {
-        struct inode *inode = filp->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         u32 fsflags, gfsflags;
 
         if (get_user(fsflags, ptr))
@@ -336,7 +336,7 @@ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 static void gfs2_size_hint(struct file *filep, loff_t offset, size_t size)
 {
-        struct inode *inode = filep->f_dentry->d_inode;
+        struct inode *inode = file_inode(filep);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         struct gfs2_inode *ip = GFS2_I(inode);
         size_t blks = (size + sdp->sd_sb.sb_bsize - 1) >> sdp->sd_sb.sb_bsize_shift;
@@ -386,7 +386,7 @@ static int gfs2_allocate_page_backing(struct page *page)
 static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct page *page = vmf->page;
-        struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(vma->vm_file);
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         unsigned long last_index;
@@ -673,8 +673,7 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 {
         struct file *file = iocb->ki_filp;
         size_t writesize = iov_length(iov, nr_segs);
-        struct dentry *dentry = file->f_dentry;
-        struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
+        struct gfs2_inode *ip = GFS2_I(file_inode(file));
         int ret;
 
         ret = gfs2_rs_alloc(ip);
@@ -772,7 +771,7 @@ static void calc_max_reserv(struct gfs2_inode *ip, loff_t max, loff_t *len,
 static long gfs2_fallocate(struct file *file, int mode, loff_t offset,
                            loff_t len)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         struct gfs2_inode *ip = GFS2_I(inode);
         unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
@@ -938,7 +937,7 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
 {
         struct gfs2_file *fp = file->private_data;
         struct gfs2_holder *fl_gh = &fp->f_fl_gh;
-        struct gfs2_inode *ip = GFS2_I(file->f_path.dentry->d_inode);
+        struct gfs2_inode *ip = GFS2_I(file_inode(file));
         struct gfs2_glock *gl;
         unsigned int state;
         int flags;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 52c2aeaf45ce..d1f51fd73f86 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1257,7 +1257,7 @@ fail:
 
 int gfs2_fitrim(struct file *filp, void __user *argp)
 {
-        struct inode *inode = filp->f_dentry->d_inode;
+        struct inode *inode = file_inode(filp);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
         struct request_queue *q = bdev_get_queue(sdp->sd_vfs->s_bdev);
         struct buffer_head *bh;
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 597a612834dc..aa5c48044966 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -103,7 +103,7 @@ static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
         int n = simple_strtol(buf, NULL, 0);
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         switch (n) {
         case 0:
@@ -133,7 +133,7 @@ static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf)
 static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
 {
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         if (simple_strtol(buf, NULL, 0) != 1)
                 return -EINVAL;
@@ -148,7 +148,7 @@ static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf,
                                  size_t len)
 {
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         if (simple_strtol(buf, NULL, 0) != 1)
                 return -EINVAL;
@@ -161,7 +161,7 @@ static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf,
                                 size_t len)
 {
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         if (simple_strtol(buf, NULL, 0) != 1)
                 return -EINVAL;
@@ -178,7 +178,7 @@ static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf,
         u32 id;
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         id = simple_strtoul(buf, NULL, 0);
 
@@ -198,7 +198,7 @@ static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf,
         u32 id;
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         id = simple_strtoul(buf, NULL, 0);
 
@@ -221,7 +221,7 @@ static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len
         int rv;
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum,
                     mode);
@@ -532,7 +532,7 @@ static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf,
         unsigned int x, y;
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         if (sscanf(buf, "%u %u", &x, &y) != 2 || !y)
                 return -EINVAL;
@@ -551,7 +551,7 @@ static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field,
         unsigned int x;
 
         if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
+                return -EPERM;
 
         x = simple_strtoul(buf, NULL, 0);