Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] deal with the first call of ->show() generating no output
[PATCH] fix ->llseek() for a bunch of directories
[PATCH] fix regular readdir() and friends
[PATCH] fix hpux_getdents()
[PATCH] fix osf_getdirents()
[PATCH] ntfs: use d_add_ci
[PATCH] change d_add_ci argument ordering
[PATCH] fix efs_lookup()
[PATCH] proc: inode number fixlet
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 6e94313..8509dad 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -121,24 +121,29 @@
if (reclen > buf->count)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->error = -EOVERFLOW;
return -EOVERFLOW;
+ }
if (buf->basep) {
if (put_user(offset, buf->basep))
- return -EFAULT;
+ goto Efault;
buf->basep = NULL;
}
dirent = buf->dirent;
- put_user(d_ino, &dirent->d_ino);
- put_user(namlen, &dirent->d_namlen);
- put_user(reclen, &dirent->d_reclen);
- if (copy_to_user(dirent->d_name, name, namlen) ||
+ if (put_user(d_ino, &dirent->d_ino) ||
+ put_user(namlen, &dirent->d_namlen) ||
+ put_user(reclen, &dirent->d_reclen) ||
+ copy_to_user(dirent->d_name, name, namlen) ||
put_user(0, dirent->d_name + namlen))
- return -EFAULT;
+ goto Efault;
dirent = (void __user *)dirent + reclen;
buf->dirent = dirent;
buf->count -= reclen;
return 0;
+Efault:
+ buf->error = -EFAULT;
+ return -EFAULT;
}
asmlinkage int
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 1263f00..69ff671 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -84,22 +84,28 @@
if (reclen > buf->count)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->error = -EOVERFLOW;
return -EOVERFLOW;
+ }
dirent = buf->previous;
if (dirent)
- put_user(offset, &dirent->d_off);
+ if (put_user(offset, &dirent->d_off))
+ goto Efault;
dirent = buf->current_dir;
+ if (put_user(d_ino, &dirent->d_ino) ||
+ put_user(reclen, &dirent->d_reclen) ||
+ put_user(namlen, &dirent->d_namlen) ||
+ copy_to_user(dirent->d_name, name, namlen) ||
+ put_user(0, dirent->d_name + namlen))
+ goto Efault;
buf->previous = dirent;
- put_user(d_ino, &dirent->d_ino);
- put_user(reclen, &dirent->d_reclen);
- put_user(namlen, &dirent->d_namlen);
- copy_to_user(dirent->d_name, name, namlen);
- put_user(0, dirent->d_name + namlen);
- dirent = (void __user *)dirent + reclen;
- buf->current_dir = dirent;
+ buf->current_dir = (void __user *)dirent + reclen;
buf->count -= reclen;
return 0;
+Efault:
+ buffer->error = -EFAULT;
+ return -EFAULT;
}
#undef NAME_OFFSET
@@ -126,8 +132,10 @@
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- put_user(file->f_pos, &lastdirent->d_off);
- error = count - buf.count;
+ if (put_user(file->f_pos, &lastdirent->d_off))
+ error = -EFAULT;
+ else
+ error = count - buf.count;
}
out_putf:
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 88e3787..e298fe1 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -119,6 +119,7 @@
const struct file_operations v9fs_dir_operations = {
.read = generic_read_dir,
+ .llseek = generic_file_llseek,
.readdir = v9fs_dir_readdir,
.open = v9fs_file_open,
.release = v9fs_dir_release,
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index fc1a8dc..85a30e9 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -197,6 +197,7 @@
const struct file_operations adfs_dir_operations = {
.read = generic_read_dir,
+ .llseek = generic_file_llseek,
.readdir = adfs_readdir,
.fsync = file_fsync,
};
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index 6e3f282..7b36904 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -19,6 +19,7 @@
const struct file_operations affs_dir_operations = {
.read = generic_read_dir,
+ .llseek = generic_file_llseek,
.readdir = affs_readdir,
.fsync = file_fsync,
};
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index bcfb2dc..2a41c2a 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -36,6 +36,7 @@
.release = dcache_dir_close,
.read = generic_read_dir,
.readdir = dcache_readdir,
+ .llseek = dcache_dir_lseek,
.ioctl = autofs4_root_ioctl,
};
@@ -44,6 +45,7 @@
.release = dcache_dir_close,
.read = generic_read_dir,
.readdir = dcache_readdir,
+ .llseek = dcache_dir_lseek,
};
const struct inode_operations autofs4_indirect_root_inode_operations = {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 02c6e62..740f536 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -66,6 +66,7 @@
static const struct file_operations befs_dir_operations = {
.read = generic_read_dir,
.readdir = befs_readdir,
+ .llseek = generic_file_llseek,
};
static const struct inode_operations befs_dir_inode_operations = {
diff --git a/fs/compat.c b/fs/compat.c
index c9d1472..075d050 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -792,8 +792,10 @@
if (buf->result)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->result = -EOVERFLOW;
return -EOVERFLOW;
+ }
buf->result++;
dirent = buf->dirent;
if (!access_ok(VERIFY_WRITE, dirent,
@@ -862,8 +864,10 @@
if (reclen > buf->count)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->error = -EOVERFLOW;
return -EOVERFLOW;
+ }
dirent = buf->previous;
if (dirent) {
if (__put_user(offset, &dirent->d_off))
diff --git a/fs/dcache.c b/fs/dcache.c
index 101663d..80e9395 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1236,7 +1236,7 @@
* If no entry exists with the exact case name, allocate new dentry with
* the exact case, and return the spliced entry.
*/
-struct dentry *d_add_ci(struct inode *inode, struct dentry *dentry,
+struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode,
struct qstr *name)
{
int error;
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 3a404e7..291abb1 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -74,8 +74,7 @@
}
unlock_kernel();
- d_add(dentry, inode);
- return NULL;
+ return d_splice_alias(inode, dentry);
}
static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index e1781c8..9e8a95b 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -174,7 +174,6 @@
// TODO: Consider moving this lot to a separate function! (AIA)
handle_name:
{
- struct dentry *real_dent, *new_dent;
MFT_RECORD *m;
ntfs_attr_search_ctx *ctx;
ntfs_inode *ni = NTFS_I(dent_inode);
@@ -255,93 +254,9 @@
}
nls_name.hash = full_name_hash(nls_name.name, nls_name.len);
- /*
- * Note: No need for dent->d_lock lock as i_mutex is held on the
- * parent inode.
- */
-
- /* Does a dentry matching the nls_name exist already? */
- real_dent = d_lookup(dent->d_parent, &nls_name);
- /* If not, create it now. */
- if (!real_dent) {
- real_dent = d_alloc(dent->d_parent, &nls_name);
- kfree(nls_name.name);
- if (!real_dent) {
- err = -ENOMEM;
- goto err_out;
- }
- new_dent = d_splice_alias(dent_inode, real_dent);
- if (new_dent)
- dput(real_dent);
- else
- new_dent = real_dent;
- ntfs_debug("Done. (Created new dentry.)");
- return new_dent;
- }
+ dent = d_add_ci(dent, dent_inode, &nls_name);
kfree(nls_name.name);
- /* Matching dentry exists, check if it is negative. */
- if (real_dent->d_inode) {
- if (unlikely(real_dent->d_inode != dent_inode)) {
- /* This can happen because bad inodes are unhashed. */
- BUG_ON(!is_bad_inode(dent_inode));
- BUG_ON(!is_bad_inode(real_dent->d_inode));
- }
- /*
- * Already have the inode and the dentry attached, decrement
- * the reference count to balance the ntfs_iget() we did
- * earlier on. We found the dentry using d_lookup() so it
- * cannot be disconnected and thus we do not need to worry
- * about any NFS/disconnectedness issues here.
- */
- iput(dent_inode);
- ntfs_debug("Done. (Already had inode and dentry.)");
- return real_dent;
- }
- /*
- * Negative dentry: instantiate it unless the inode is a directory and
- * has a 'disconnected' dentry (i.e. IS_ROOT and DCACHE_DISCONNECTED),
- * in which case d_move() that in place of the found dentry.
- */
- if (!S_ISDIR(dent_inode->i_mode)) {
- /* Not a directory; everything is easy. */
- d_instantiate(real_dent, dent_inode);
- ntfs_debug("Done. (Already had negative file dentry.)");
- return real_dent;
- }
- spin_lock(&dcache_lock);
- if (list_empty(&dent_inode->i_dentry)) {
- /*
- * Directory without a 'disconnected' dentry; we need to do
- * d_instantiate() by hand because it takes dcache_lock which
- * we already hold.
- */
- list_add(&real_dent->d_alias, &dent_inode->i_dentry);
- real_dent->d_inode = dent_inode;
- spin_unlock(&dcache_lock);
- security_d_instantiate(real_dent, dent_inode);
- ntfs_debug("Done. (Already had negative directory dentry.)");
- return real_dent;
- }
- /*
- * Directory with a 'disconnected' dentry; get a reference to the
- * 'disconnected' dentry.
- */
- new_dent = list_entry(dent_inode->i_dentry.next, struct dentry,
- d_alias);
- dget_locked(new_dent);
- spin_unlock(&dcache_lock);
- /* Do security vodoo. */
- security_d_instantiate(real_dent, dent_inode);
- /* Move new_dent in place of real_dent. */
- d_move(new_dent, real_dent);
- /* Balance the ntfs_iget() we did above. */
- iput(dent_inode);
- /* Throw away real_dent. */
- dput(real_dent);
- /* Use new_dent as the actual dentry. */
- ntfs_debug("Done. (Already had negative, disconnected directory "
- "dentry.)");
- return new_dent;
+ return dent;
eio_err_out:
ntfs_error(vol->sb, "Illegal file name attribute. Run chkdsk.");
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 4fb81e9..bca0f81 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -330,6 +330,7 @@
spin_lock(&proc_inum_lock);
ida_remove(&proc_inum_ida, i);
spin_unlock(&proc_inum_lock);
+ return 0;
}
return PROC_DYNAMIC_FIRST + i;
}
diff --git a/fs/readdir.c b/fs/readdir.c
index 4e026e5..93a7559 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -80,8 +80,10 @@
if (buf->result)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->result = -EOVERFLOW;
return -EOVERFLOW;
+ }
buf->result++;
dirent = buf->dirent;
if (!access_ok(VERIFY_WRITE, dirent,
@@ -155,8 +157,10 @@
if (reclen > buf->count)
return -EINVAL;
d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+ if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+ buf->error = -EOVERFLOW;
return -EOVERFLOW;
+ }
dirent = buf->previous;
if (dirent) {
if (__put_user(offset, &dirent->d_off))
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 5d54205..bd20f7f 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -108,9 +108,9 @@
goto Done;
}
/* we need at least one record in buffer */
+ pos = m->index;
+ p = m->op->start(m, &pos);
while (1) {
- pos = m->index;
- p = m->op->start(m, &pos);
err = PTR_ERR(p);
if (!p || IS_ERR(p))
break;
@@ -119,6 +119,11 @@
break;
if (unlikely(err))
m->count = 0;
+ if (unlikely(!m->count)) {
+ p = m->op->next(m, p, &pos);
+ m->index = pos;
+ continue;
+ }
if (m->count < m->size)
goto Fill;
m->op->stop(m, p);
@@ -128,6 +133,8 @@
goto Enomem;
m->count = 0;
m->version = 0;
+ pos = m->index;
+ p = m->op->start(m, &pos);
}
m->op->stop(m, p);
m->count = 0;
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 5f60363..5311c1a 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -475,6 +475,7 @@
const struct file_operations xfs_dir_file_operations = {
.read = generic_read_dir,
.readdir = xfs_file_readdir,
+ .llseek = generic_file_llseek,
.unlocked_ioctl = xfs_file_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = xfs_file_compat_ioctl,
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 91bcd979..095d271 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -355,7 +355,7 @@
/* else case-insensitive match... */
dname.name = ci_name.name;
dname.len = ci_name.len;
- dentry = d_add_ci(VFS_I(ip), dentry, &dname);
+ dentry = d_add_ci(dentry, VFS_I(ip), &dname);
kmem_free(ci_name.name);
return dentry;
}
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 07aa198..efba1de 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -230,7 +230,7 @@
extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
extern struct dentry * d_alloc_anon(struct inode *);
extern struct dentry * d_splice_alias(struct inode *, struct dentry *);
-extern struct dentry * d_add_ci(struct inode *, struct dentry *, struct qstr *);
+extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *);
extern void shrink_dcache_sb(struct super_block *);
extern void shrink_dcache_parent(struct dentry *);
extern void shrink_dcache_for_umount(struct super_block *);
