Staging
v0.8.1
v0.8.1
https://github.com/torvalds/linux
Revision a3b25d157d5a52ef3f9296a739ee28f5d36e8968 authored by Linus Torvalds on 24 May 2019, 16:12:46 UTC, committed by Linus Torvalds on 24 May 2019, 16:12:46 UTC
Pull drm fixes from Dave Airlie: "Nothing too unusual here for rc2. Except the amdgpu DMCU firmware loading fix caused build breakage with a different set of Kconfig options. I've just reverted it for now until the AMD folks can rewrite it to avoid that problem. i915: - boosting fix - bump ready task fixes - GVT - reset fix, error return, TRTT handling fix amdgpu: - DMCU firmware loading fix - Polaris 10 pci id for kfd - picasso screen corruption fix - SR-IOV fixes - vega driver reload fixes - SMU locking fix - compute profile fix for kfd vmwgfx: - integer overflow fixes - dma sg fix sun4i: - HDMI phy fixes gma500: - LVDS detection fix panfrost: - devfreq selection fix" * tag 'drm-fixes-2019-05-24-1' of git://anongit.freedesktop.org/drm/drm: (32 commits) Revert "drm/amd/display: Don't load DMCU for Raven 1" drm/panfrost: Select devfreq drm/gma500/cdv: Check vbt config bits when detecting lvds panels drm/vmwgfx: integer underflow in vmw_cmd_dx_set_shader() leading to an invalid read drm/vmwgfx: NULL pointer dereference from vmw_cmd_dx_view_define() drm/vmwgfx: Use the dma scatter-gather iterator to get dma addresses drm/vmwgfx: Fix compat mode shader operation drm/vmwgfx: Fix user space handle equal to zero drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set drm/i915/gvt: Fix an error code in ppgtt_populate_spt_by_guest_entry() drm/i915/gvt: do not let TRTTE and 0x4dfc write passthrough to hardware drm/i915/gvt: add 0x4dfc to gen9 save-restore list drm/i915/gvt: Tiled Resources mmios are in-context mmios for gen9+ drm/i915/gvt: use cmd to restore in-context mmios to hw for gen9 platform drm/i915/gvt: emit init breadcrumb for gvt request drm/amdkfd: Fix compute profile switching drm/amdgpu: skip fw pri bo alloc for SRIOV drm/amd/powerplay: fix locking in smu_feature_set_supported() drm/amdgpu/gmc9: set vram_width properly for SR-IOV drm/amdgpu/soc15: skip reset on init ...
Tip revision: a3b25d157d5a52ef3f9296a739ee28f5d36e8968 authored by Linus Torvalds on 24 May 2019, 16:12:46 UTC
Merge tag 'drm-fixes-2019-05-24-1' of git://anongit.freedesktop.org/drm/drm
Merge tag 'drm-fixes-2019-05-24-1' of git://anongit.freedesktop.org/drm/drm
Tip revision: a3b25d1
self.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/cache.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/pid_namespace.h>
#include "internal.h"
/*
* /proc/self:
*/
static const char *proc_self_get_link(struct dentry *dentry,
struct inode *inode,
struct delayed_call *done)
{
struct pid_namespace *ns = proc_pid_ns(inode);
pid_t tgid = task_tgid_nr_ns(current, ns);
char *name;
if (!tgid)
return ERR_PTR(-ENOENT);
/* max length of unsigned int in decimal + NULL term */
name = kmalloc(10 + 1, dentry ? GFP_KERNEL : GFP_ATOMIC);
if (unlikely(!name))
return dentry ? ERR_PTR(-ENOMEM) : ERR_PTR(-ECHILD);
sprintf(name, "%u", tgid);
set_delayed_call(done, kfree_link, name);
return name;
}
static const struct inode_operations proc_self_inode_operations = {
.get_link = proc_self_get_link,
};
static unsigned self_inum __ro_after_init;
int proc_setup_self(struct super_block *s)
{
struct inode *root_inode = d_inode(s->s_root);
struct pid_namespace *ns = proc_pid_ns(root_inode);
struct dentry *self;
int ret = -ENOMEM;
inode_lock(root_inode);
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);
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);
ret = 0;
} else {
dput(self);
}
}
inode_unlock(root_inode);
if (ret)
pr_err("proc_fill_super: can't allocate /proc/self\n");
else
ns->proc_self = self;
return ret;
}
void __init proc_self_init(void)
{
proc_alloc_inum(&self_inum);
}
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