diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-09-12 16:46:33 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-09-12 16:46:33 +1000 |
| commit | 4a8183f82cda1252fab65e3f10c5e71393212a41 (patch) | |
| tree | 03b71c493288c8aa8524bbecb2f8fbff47eb00a5 /ipc | |
| parent | b8e6da480474580bb2369e09537bad73ce47dcfa (diff) | |
| parent | 3c07507edcedc7acb946ed4c3da538181ee88f36 (diff) | |
Merge branch 'akpm-current/current'
Conflicts:
mm/mmap.c
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/ipc_sysctl.c | 3 | ||||
| -rw-r--r-- | ipc/shm.c | 7 | ||||
| -rw-r--r-- | ipc/util.c | 20 |
3 files changed, 5 insertions, 25 deletions
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index c3f0326e98db..e8075b247497 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -123,7 +123,6 @@ static int proc_ipcauto_dointvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { struct ctl_table ipc_table; - size_t lenp_bef = *lenp; int oldval; int rc; @@ -133,7 +132,7 @@ static int proc_ipcauto_dointvec_minmax(struct ctl_table *table, int write, rc = proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos); - if (write && !rc && lenp_bef == *lenp) { + if (write && !rc) { int newval = *((int *)(ipc_table.data)); /* * The file "auto_msgmni" has correctly been set. diff --git a/ipc/shm.c b/ipc/shm.c index 7fc9f9f3a26b..01454796ba3c 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1172,13 +1172,6 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr, if (find_vma_intersection(current->mm, addr, addr + size)) goto invalid; - /* - * If shm segment goes below stack, make sure there is some - * space left for the stack to grow (at least 4 pages). - */ - if (addr < current->mm->start_stack && - addr > current->mm->start_stack - size - PAGE_SIZE * 5) - goto invalid; } addr = do_mmap_pgoff(file, addr, size, prot, flags, 0, &populate); diff --git a/ipc/util.c b/ipc/util.c index d73b7af581e2..88adc329888c 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -892,28 +892,16 @@ static const struct seq_operations sysvipc_proc_seqops = { static int sysvipc_proc_open(struct inode *inode, struct file *file) { - int ret; - struct seq_file *seq; struct ipc_proc_iter *iter; - ret = -ENOMEM; - iter = kmalloc(sizeof(*iter), GFP_KERNEL); + iter = __seq_open_private(file, &sysvipc_proc_seqops, sizeof(*iter)); if (!iter) - goto out; - - ret = seq_open(file, &sysvipc_proc_seqops); - if (ret) { - kfree(iter); - goto out; - } - - seq = file->private_data; - seq->private = iter; + return -ENOMEM; iter->iface = PDE_DATA(inode); iter->ns = get_ipc_ns(current->nsproxy->ipc_ns); -out: - return ret; + + return 0; } static int sysvipc_proc_release(struct inode *inode, struct file *file) |