diff options
Diffstat (limited to 'fs/proc')
-rw-r--r-- | fs/proc/Makefile | 3 | ||||
-rw-r--r-- | fs/proc/base.c | 21 | ||||
-rw-r--r-- | fs/proc/internal.h | 4 | ||||
-rw-r--r-- | fs/proc/root.c | 2 |
4 files changed, 12 insertions, 18 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile index a6b3a8f878f0..bce38e3f06cb 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile | |||
@@ -8,8 +8,9 @@ proc-y := nommu.o task_nommu.o | |||
8 | proc-$(CONFIG_MMU) := mmu.o task_mmu.o | 8 | proc-$(CONFIG_MMU) := mmu.o task_mmu.o |
9 | 9 | ||
10 | proc-y += inode.o root.o base.o generic.o array.o \ | 10 | proc-y += inode.o root.o base.o generic.o array.o \ |
11 | proc_tty.o proc_misc.o proc_sysctl.o | 11 | proc_tty.o proc_misc.o |
12 | 12 | ||
13 | proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o | ||
13 | proc-$(CONFIG_PROC_KCORE) += kcore.o | 14 | proc-$(CONFIG_PROC_KCORE) += kcore.o |
14 | proc-$(CONFIG_PROC_VMCORE) += vmcore.o | 15 | proc-$(CONFIG_PROC_VMCORE) += vmcore.o |
15 | proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o | 16 | proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o |
diff --git a/fs/proc/base.c b/fs/proc/base.c index 01f7769da8e6..989af5e55d1b 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c | |||
@@ -1558,29 +1558,20 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, | |||
1558 | size_t count, loff_t *ppos) | 1558 | size_t count, loff_t *ppos) |
1559 | { | 1559 | { |
1560 | struct inode * inode = file->f_path.dentry->d_inode; | 1560 | struct inode * inode = file->f_path.dentry->d_inode; |
1561 | unsigned long page; | 1561 | char *p = NULL; |
1562 | ssize_t length; | 1562 | ssize_t length; |
1563 | struct task_struct *task = get_proc_task(inode); | 1563 | struct task_struct *task = get_proc_task(inode); |
1564 | 1564 | ||
1565 | length = -ESRCH; | ||
1566 | if (!task) | 1565 | if (!task) |
1567 | goto out_no_task; | 1566 | return -ESRCH; |
1568 | |||
1569 | if (count > PAGE_SIZE) | ||
1570 | count = PAGE_SIZE; | ||
1571 | length = -ENOMEM; | ||
1572 | if (!(page = __get_free_page(GFP_KERNEL))) | ||
1573 | goto out; | ||
1574 | 1567 | ||
1575 | length = security_getprocattr(task, | 1568 | length = security_getprocattr(task, |
1576 | (char*)file->f_path.dentry->d_name.name, | 1569 | (char*)file->f_path.dentry->d_name.name, |
1577 | (void*)page, count); | 1570 | &p); |
1578 | if (length >= 0) | ||
1579 | length = simple_read_from_buffer(buf, count, ppos, (char *)page, length); | ||
1580 | free_page(page); | ||
1581 | out: | ||
1582 | put_task_struct(task); | 1571 | put_task_struct(task); |
1583 | out_no_task: | 1572 | if (length > 0) |
1573 | length = simple_read_from_buffer(buf, count, ppos, p, length); | ||
1574 | kfree(p); | ||
1584 | return length; | 1575 | return length; |
1585 | } | 1576 | } |
1586 | 1577 | ||
diff --git a/fs/proc/internal.h b/fs/proc/internal.h index c932aa65e198..f771889183c3 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h | |||
@@ -11,7 +11,11 @@ | |||
11 | 11 | ||
12 | #include <linux/proc_fs.h> | 12 | #include <linux/proc_fs.h> |
13 | 13 | ||
14 | #ifdef CONFIG_PROC_SYSCTL | ||
14 | extern int proc_sys_init(void); | 15 | extern int proc_sys_init(void); |
16 | #else | ||
17 | static inline void proc_sys_init(void) { } | ||
18 | #endif | ||
15 | 19 | ||
16 | struct vmalloc_info { | 20 | struct vmalloc_info { |
17 | unsigned long used; | 21 | unsigned long used; |
diff --git a/fs/proc/root.c b/fs/proc/root.c index 5834a744c2a9..41f17037f738 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c | |||
@@ -79,9 +79,7 @@ void __init proc_root_init(void) | |||
79 | proc_device_tree_init(); | 79 | proc_device_tree_init(); |
80 | #endif | 80 | #endif |
81 | proc_bus = proc_mkdir("bus", NULL); | 81 | proc_bus = proc_mkdir("bus", NULL); |
82 | #ifdef CONFIG_SYSCTL | ||
83 | proc_sys_init(); | 82 | proc_sys_init(); |
84 | #endif | ||
85 | } | 83 | } |
86 | 84 | ||
87 | static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat | 85 | static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat |