summaryrefslogtreecommitdiffstats
path: root/fs/proc/self.c
diff options
context:
space:
mode:
authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
commit12e04ffcd93b25dfd726d46338c2ee7d23de556e (patch)
treef91479a62805619168994fd3ee55e3ffa23fc24e /fs/proc/self.c
parent9eff37a8713939f218ab8bf0dc93f1d67af7b8b4 (diff)
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
Merge tag 'v3.10-rc1' into stable/for-linus-3.10
Linux 3.10-rc1 * tag 'v3.10-rc1': (12273 commits) Linux 3.10-rc1 [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed ...
Diffstat (limited to 'fs/proc/self.c')
-rw-r--r--fs/proc/self.c47
1 files changed, 40 insertions, 7 deletions
diff --git a/fs/proc/self.c b/fs/proc/self.c
index aa5cc3bff14..6b6a993b5c2 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -1,6 +1,8 @@
-#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/namei.h>
+#include <linux/slab.h>
+#include <linux/pid_namespace.h>
+#include "internal.h"
/*
* /proc/self:
@@ -48,12 +50,43 @@ static const struct inode_operations proc_self_inode_operations = {
.put_link = proc_self_put_link,
};
-void __init proc_self_init(void)
+static unsigned self_inum;
+
+int proc_setup_self(struct super_block *s)
{
- struct proc_dir_entry *proc_self_symlink;
- mode_t mode;
+ struct inode *root_inode = s->s_root->d_inode;
+ struct pid_namespace *ns = s->s_fs_info;
+ struct dentry *self;
+
+ mutex_lock(&root_inode->i_mutex);
+ self = d_alloc_name(s->s_root, "self");
+ if (self) {
+ struct inode *inode = new_inode_pseudo(s);
+ if (inode) {
+ inode->i_ino = self_inum;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ inode->i_mode = S_IFLNK | S_IRWXUGO;
+ inode->i_uid = GLOBAL_ROOT_UID;
+ inode->i_gid = GLOBAL_ROOT_GID;
+ inode->i_op = &proc_self_inode_operations;
+ d_add(self, inode);
+ } else {
+ dput(self);
+ self = ERR_PTR(-ENOMEM);
+ }
+ } else {
+ self = ERR_PTR(-ENOMEM);
+ }
+ mutex_unlock(&root_inode->i_mutex);
+ if (IS_ERR(self)) {
+ pr_err("proc_fill_super: can't allocate /proc/self\n");
+ return PTR_ERR(self);
+ }
+ ns->proc_self = self;
+ return 0;
+}
- mode = S_IFLNK | S_IRWXUGO;
- proc_self_symlink = proc_create("self", mode, NULL, NULL );
- proc_self_symlink->proc_iops = &proc_self_inode_operations;
+void __init proc_self_init(void)
+{
+ proc_alloc_inum(&self_inum);
}