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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 13:23:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 13:23:03 -0800
commit56a79b7b021bf1b08334e63c2c14b280e2dbf47a (patch)
tree0419233e6194f4f12073c9284852885aa8984bec /arch/x86/kernel
parent1c82315a12144cde732636e259d39e3ee81b3c5b (diff)
parentdcf787f39162ce32ca325b3e784aba2d2444619a (diff)
downloadvexpress-lsk-56a79b7b021bf1b08334e63c2c14b280e2dbf47a.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more VFS bits from Al Viro: "Unfortunately, it looks like xattr series will have to wait until the next cycle ;-/ This pile contains 9p cleanups and fixes (races in v9fs_fid_add() etc), fixup for nommu breakage in shmem.c, several cleanups and a bit more file_inode() work" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: constify path_get/path_put and fs_struct.c stuff fix nommu breakage in shmem.c cache the value of file_inode() in struct file 9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry 9p: make sure ->lookup() adds fid to the right dentry 9p: untangle ->lookup() a bit 9p: double iput() in ->lookup() if d_materialise_unique() fails 9p: v9fs_fid_add() can't fail now v9fs: get rid of v9fs_dentry 9p: turn fid->dlist into hlist 9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine more file_inode() open-coded instances selinux: opened file can't have NULL or negative ->f_path.dentry (In the meantime, the hlist traversal macros have changed, so this required a semantic conflict fixup for the newly hlistified fid->dlist)
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/msr.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 4929502c137..ce130493b80 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -71,7 +71,7 @@ static ssize_t msr_read(struct file *file, char __user *buf,
u32 __user *tmp = (u32 __user *) buf;
u32 data[2];
u32 reg = *ppos;
- int cpu = iminor(file->f_path.dentry->d_inode);
+ int cpu = iminor(file_inode(file));
int err = 0;
ssize_t bytes = 0;
@@ -99,7 +99,7 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
const u32 __user *tmp = (const u32 __user *)buf;
u32 data[2];
u32 reg = *ppos;
- int cpu = iminor(file->f_path.dentry->d_inode);
+ int cpu = iminor(file_inode(file));
int err = 0;
ssize_t bytes = 0;
@@ -125,7 +125,7 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
{
u32 __user *uregs = (u32 __user *)arg;
u32 regs[8];
- int cpu = iminor(file->f_path.dentry->d_inode);
+ int cpu = iminor(file_inode(file));
int err;
switch (ioc) {
@@ -171,13 +171,12 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
static int msr_open(struct inode *inode, struct file *file)
{
- unsigned int cpu;
+ unsigned int cpu = iminor(file_inode(file));
struct cpuinfo_x86 *c;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
- cpu = iminor(file->f_path.dentry->d_inode);
if (cpu >= nr_cpu_ids || !cpu_online(cpu))
return -ENXIO; /* No such CPU */