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Subject[PATCH] Add simple_alloc_dentry to libfs
This patch consolidates several occurrences of duplicated code into a new 
libfs function simple_alloc_dentry().

Please review & apply if ok.

Signed-off-by: James Morris <jmorris@redhat.com>

drivers/misc/ibmasm/ibmasmfs.c | 13 ++-----------
drivers/oprofile/oprofilefs.c | 14 ++++----------
drivers/usb/gadget/inode.c | 6 +-----
fs/libfs.c | 17 ++++++++++++-----
include/linux/fs.h | 1 +
net/sunrpc/rpc_pipe.c | 6 +-----
security/selinux/selinuxfs.c | 17 +++--------------
7 files changed, 24 insertions(+), 50 deletions(-)

diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/drivers/misc/ibmasm/ibmasmfs.c linux-2.6.9-rc4-mm1.f/drivers/misc/ibmasm/ibmasmfs.c
--- linux-2.6.9-rc4-mm1.o/drivers/misc/ibmasm/ibmasmfs.c 2004-10-15 00:05:42.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/drivers/misc/ibmasm/ibmasmfs.c 2004-10-15 23:11:57.800435680 -0400
@@ -173,13 +173,8 @@ static struct dentry *ibmasmfs_create_fi
{
struct dentry *dentry;
struct inode *inode;
- struct qstr qname;

- qname.name = name;
- qname.len = strlen (name);
- qname.hash = full_name_hash(name, qname.len);
-
- dentry = d_alloc(parent, &qname);
+ dentry = simple_alloc_dentry(parent, name);
if (!dentry)
return NULL;

@@ -202,12 +197,8 @@ static struct dentry *ibmasmfs_create_di
{
struct dentry *dentry;
struct inode *inode;
- struct qstr qname;

- qname.name = name;
- qname.len = strlen (name);
- qname.hash = full_name_hash(name, qname.len);
- dentry = d_alloc(parent, &qname);
+ dentry = simple_alloc_dentry(parent, name);
if (!dentry)
return NULL;

diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/drivers/oprofile/oprofilefs.c linux-2.6.9-rc4-mm1.f/drivers/oprofile/oprofilefs.c
--- linux-2.6.9-rc4-mm1.o/drivers/oprofile/oprofilefs.c 2004-08-14 01:36:56.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/drivers/oprofile/oprofilefs.c 2004-10-15 23:11:57.800435680 -0400
@@ -135,11 +135,8 @@ static struct dentry * __oprofilefs_crea
{
struct dentry * dentry;
struct inode * inode;
- struct qstr qname;
- qname.name = name;
- qname.len = strlen(name);
- qname.hash = full_name_hash(qname.name, qname.len);
- dentry = d_alloc(root, &qname);
+
+ dentry = simple_alloc_dentry(root, name);
if (!dentry)
return NULL;
inode = oprofilefs_get_inode(sb, S_IFREG | perm);
@@ -228,11 +225,8 @@ struct dentry * oprofilefs_mkdir(struct
{
struct dentry * dentry;
struct inode * inode;
- struct qstr qname;
- qname.name = name;
- qname.len = strlen(name);
- qname.hash = full_name_hash(qname.name, qname.len);
- dentry = d_alloc(root, &qname);
+
+ dentry = simple_alloc_dentry(root, name);
if (!dentry)
return NULL;
inode = oprofilefs_get_inode(sb, S_IFDIR | 0755);
diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/drivers/usb/gadget/inode.c linux-2.6.9-rc4-mm1.f/drivers/usb/gadget/inode.c
--- linux-2.6.9-rc4-mm1.o/drivers/usb/gadget/inode.c 2004-10-15 00:00:37.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/drivers/usb/gadget/inode.c 2004-10-15 23:11:57.802435376 -0400
@@ -1981,12 +1981,8 @@ gadgetfs_create_file (struct super_block
{
struct dentry *dentry;
struct inode *inode;
- struct qstr qname;

- qname.name = name;
- qname.len = strlen (name);
- qname.hash = full_name_hash (qname.name, qname.len);
- dentry = d_alloc (sb->s_root, &qname);
+ dentry = simple_alloc_dentry (sb->s_root, name);
if (!dentry)
return NULL;

diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/fs/libfs.c linux-2.6.9-rc4-mm1.f/fs/libfs.c
--- linux-2.6.9-rc4-mm1.o/fs/libfs.c 2004-10-15 00:00:39.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/fs/libfs.c 2004-10-15 23:11:57.803435224 -0400
@@ -362,6 +362,16 @@ int simple_commit_write(struct file *fil
return 0;
}

+struct dentry *simple_alloc_dentry(struct dentry *parent, const char *name)
+{
+ struct qstr q;
+
+ q.name = name;
+ q.len = strlen(name);
+ q.hash = full_name_hash(q.name, q.len);
+ return d_alloc(parent, &q);
+}
+
int simple_fill_super(struct super_block *s, int magic, struct tree_descr *files)
{
static struct super_operations s_ops = {.statfs = simple_statfs};
@@ -391,13 +401,9 @@ int simple_fill_super(struct super_block
return -ENOMEM;
}
for (i = 0; !files->name || files->name[0]; i++, files++) {
- struct qstr name;
if (!files->name)
continue;
- name.name = files->name;
- name.len = strlen(name.name);
- name.hash = full_name_hash(name.name, name.len);
- dentry = d_alloc(root, &name);
+ dentry = simple_alloc_dentry(root, files->name);
if (!dentry)
goto out;
inode = new_inode(s);
@@ -530,6 +536,7 @@ EXPORT_SYMBOL(simple_commit_write);
EXPORT_SYMBOL(simple_dir_inode_operations);
EXPORT_SYMBOL(simple_dir_operations);
EXPORT_SYMBOL(simple_empty);
+EXPORT_SYMBOL(simple_alloc_dentry);
EXPORT_SYMBOL(simple_fill_super);
EXPORT_SYMBOL(simple_getattr);
EXPORT_SYMBOL(simple_link);
diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/include/linux/fs.h linux-2.6.9-rc4-mm1.f/include/linux/fs.h
--- linux-2.6.9-rc4-mm1.o/include/linux/fs.h 2004-10-15 00:05:45.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/include/linux/fs.h 2004-10-15 23:11:57.805434920 -0400
@@ -1642,6 +1642,7 @@ extern ssize_t generic_read_dir(struct f
extern struct file_operations simple_dir_operations;
extern struct inode_operations simple_dir_inode_operations;
struct tree_descr { char *name; struct file_operations *ops; int mode; };
+struct dentry *simple_alloc_dentry(struct dentry *, const char *);
extern int simple_fill_super(struct super_block *, int, struct tree_descr *);
extern int simple_pin_fs(char *name, struct vfsmount **mount, int *count);
extern void simple_release_fs(struct vfsmount **mount, int *count);
diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/net/sunrpc/rpc_pipe.c linux-2.6.9-rc4-mm1.f/net/sunrpc/rpc_pipe.c
--- linux-2.6.9-rc4-mm1.o/net/sunrpc/rpc_pipe.c 2004-08-14 01:36:44.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/net/sunrpc/rpc_pipe.c 2004-10-15 23:11:57.806434768 -0400
@@ -523,16 +523,12 @@ rpc_populate(struct dentry *parent,
{
struct inode *inode, *dir = parent->d_inode;
void *private = RPC_I(dir)->private;
- struct qstr name;
struct dentry *dentry;
int mode, i;

down(&dir->i_sem);
for (i = start; i < eof; i++) {
- name.name = files[i].name;
- name.len = strlen(name.name);
- name.hash = full_name_hash(name.name, name.len);
- dentry = d_alloc(parent, &name);
+ dentry = simple_alloc_dentry(parent, files[i].name);
if (!dentry)
goto out_bad;
mode = files[i].mode;
diff -purN -X dontdiff linux-2.6.9-rc4-mm1.o/security/selinux/selinuxfs.c linux-2.6.9-rc4-mm1.f/security/selinux/selinuxfs.c
--- linux-2.6.9-rc4-mm1.o/security/selinux/selinuxfs.c 2004-10-15 00:00:42.000000000 -0400
+++ linux-2.6.9-rc4-mm1.f/security/selinux/selinuxfs.c 2004-10-15 23:11:57.807434616 -0400
@@ -818,7 +818,6 @@ static int sel_make_bools(void)
struct dentry *dir = bool_dir;
struct inode *inode = NULL;
struct inode_security_struct *isec;
- struct qstr qname;
char **names = NULL, *page;
int num;
int *values = NULL;
@@ -838,10 +837,7 @@ static int sel_make_bools(void)
goto out;

for (i = 0; i < num; i++) {
- qname.name = names[i];
- qname.len = strlen(qname.name);
- qname.hash = full_name_hash(qname.name, qname.len);
- dentry = d_alloc(dir, &qname);
+ dentry = simple_alloc_dentry(dir, names[i]);
if (!dentry) {
ret = -ENOMEM;
goto err;
@@ -896,7 +892,6 @@ static int sel_fill_super(struct super_b
int ret;
struct dentry *dentry;
struct inode *inode;
- struct qstr qname;
struct inode_security_struct *isec;

static struct tree_descr selinux_files[] = {
@@ -917,10 +912,7 @@ static int sel_fill_super(struct super_b
if (ret)
return ret;

- qname.name = BOOL_DIR_NAME;
- qname.len = strlen(qname.name);
- qname.hash = full_name_hash(qname.name, qname.len);
- dentry = d_alloc(sb->s_root, &qname);
+ dentry = simple_alloc_dentry(sb->s_root, BOOL_DIR_NAME);
if (!dentry)
return -ENOMEM;

@@ -935,10 +927,7 @@ static int sel_fill_super(struct super_b
if (ret)
goto out;

- qname.name = NULL_FILE_NAME;
- qname.len = strlen(qname.name);
- qname.hash = full_name_hash(qname.name, qname.len);
- dentry = d_alloc(sb->s_root, &qname);
+ dentry = simple_alloc_dentry(sb->s_root, NULL_FILE_NAME);
if (!dentry)
return -ENOMEM;

-
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