From: David Howells Date: Fri, 12 Apr 2013 01:48:30 +0000 (+0100) Subject: proc: Add proc_mkdir_data() X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=270b5ac2151707c25d3327722c5badfbd95945bc;p=openwrt%2Fstaging%2Fblogic.git proc: Add proc_mkdir_data() Add proc_mkdir_data() to allow procfs directories to be created that are annotated at the time of creation with private data rather than doing this post-creation. This means no access is then required to the proc_dir_entry struct to set this. Signed-off-by: David Howells Acked-by: Mauro Carvalho Chehab Acked-by: Greg Kroah-Hartman cc: Neela Syam Kolli cc: Jerry Chuang cc: linux-scsi@vger.kernel.org cc: devel@driverdev.osuosl.org cc: linux-wireless@vger.kernel.org Signed-off-by: Al Viro --- diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c index 70a840f9b283..b7d87cd227a9 100644 --- a/drivers/message/i2o/i2o_proc.c +++ b/drivers/message/i2o/i2o_proc.c @@ -1913,14 +1913,12 @@ static void i2o_proc_device_add(struct proc_dir_entry *dir, osm_debug("adding device /proc/i2o/%s/%s\n", dev->iop->name, buff); - devdir = proc_mkdir(buff, dir); + devdir = proc_mkdir_data(buff, 0, dir, dev); if (!devdir) { osm_warn("Could not allocate procdir!\n"); return; } - devdir->data = dev; - i2o_proc_create_entries(devdir, generic_dev_entries, dev); /* Inform core that we want updates about this device's status */ @@ -1954,12 +1952,10 @@ static int i2o_proc_iop_add(struct proc_dir_entry *dir, osm_debug("adding IOP /proc/i2o/%s\n", c->name); - iopdir = proc_mkdir(c->name, dir); + iopdir = proc_mkdir_data(c->name, 0, dir, c); if (!iopdir) return -1; - iopdir->data = c; - i2o_proc_create_entries(iopdir, i2o_proc_generic_iop_entries, c); list_for_each_entry(dev, &c->devices, list) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index a1c90bd34e78..ef3384d39e11 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -2818,12 +2818,12 @@ mega_create_proc_entry(int index, struct proc_dir_entry *parent) sprintf(string, "hba%d", adapter->host->host_no); - dir = adapter->controller_proc_dir_entry = proc_mkdir(string, parent); + dir = adapter->controller_proc_dir_entry = + proc_mkdir_data(string, 0, parent, adapter); if(!dir) { printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); return; } - dir->data = adapter; for (f = mega_proc_files; f->name; f++) { de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 433c3df95de0..d81d7d55f25e 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -672,13 +672,12 @@ void rtl8192_proc_init_one(struct net_device *dev) struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); if (rtl8192_proc) { - priv->dir_dev = proc_mkdir(dev->name, rtl8192_proc); + priv->dir_dev = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); if (!priv->dir_dev) { RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n", dev->name); return; } - priv->dir_dev->data = dev; for (f = rtl8192_proc_files; f->name[0]; f++) { if (!proc_create_data(f->name, S_IFREG | S_IRUGO, diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 5f6f6c38701f..4074da57c99e 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -428,13 +428,17 @@ struct proc_dir_entry *proc_symlink(const char *name, } EXPORT_SYMBOL(proc_symlink); -struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, - struct proc_dir_entry *parent) +struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode, + struct proc_dir_entry *parent, void *data) { struct proc_dir_entry *ent; + if (mode == 0) + mode = S_IRUGO | S_IXUGO; + ent = __proc_create(&parent, name, S_IFDIR | mode, 2); if (ent) { + ent->data = data; if (proc_register(parent, ent) < 0) { kfree(ent); ent = NULL; @@ -442,29 +446,19 @@ struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, } return ent; } -EXPORT_SYMBOL(proc_mkdir_mode); +EXPORT_SYMBOL_GPL(proc_mkdir_data); -struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, - struct proc_dir_entry *parent) +struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, + struct proc_dir_entry *parent) { - struct proc_dir_entry *ent; - - ent = __proc_create(&parent, name, S_IFDIR | S_IRUGO | S_IXUGO, 2); - if (ent) { - ent->data = net; - if (proc_register(parent, ent) < 0) { - kfree(ent); - ent = NULL; - } - } - return ent; + return proc_mkdir_data(name, mode, parent, NULL); } -EXPORT_SYMBOL_GPL(proc_net_mkdir); +EXPORT_SYMBOL(proc_mkdir_mode); struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) { - return proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent); + return proc_mkdir_data(name, 0, parent, NULL); } EXPORT_SYMBOL(proc_mkdir); diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 274adea363ff..07c2162ef556 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -479,9 +479,8 @@ int reiserfs_proc_info_init(struct super_block *sb) *s = '!'; spin_lock_init(&__PINFO(sb).lock); - REISERFS_SB(sb)->procdir = proc_mkdir(b, proc_info_root); + REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb); if (REISERFS_SB(sb)->procdir) { - REISERFS_SB(sb)->procdir->data = sb; add_file(sb, "version", show_version); add_file(sb, "super", show_super); add_file(sb, "per-level", show_per_level); diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 80d9e24a79ac..a0fb1c2f1d8e 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -73,6 +73,8 @@ extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); extern struct proc_dir_entry *proc_symlink(const char *, struct proc_dir_entry *, const char *); extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *); +extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t, + struct proc_dir_entry *, void *); extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent); @@ -82,9 +84,6 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, return proc_create_data(name, mode, parent, proc_fops, NULL); } -extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, - struct proc_dir_entry *parent); - extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); #else @@ -108,6 +107,8 @@ static inline struct proc_dir_entry *proc_symlink(const char *name, struct proc_dir_entry *parent,const char *dest) {return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} +static inline struct proc_dir_entry *proc_mkdir_data(const char *name, + umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; } static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} @@ -153,4 +154,10 @@ static inline void *PDE_DATA(const struct inode *inode) return PROC_I(inode)->pde->data; } +static inline struct proc_dir_entry *proc_net_mkdir( + struct net *net, const char *name, struct proc_dir_entry *parent) +{ + return proc_mkdir_data(name, 0, parent, net); +} + #endif /* _LINUX_PROC_FS_H */