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raw | patch | inline | side by side (parent: 046aa12)
author | Davidlohr Bueso <dave@stgolabs.net> | |
Mon, 8 May 2017 22:57:03 +0000 (15:57 -0700) | ||
committer | Linus Torvalds <torvalds@linux-foundation.org> | |
Tue, 9 May 2017 00:15:12 +0000 (17:15 -0700) |
Clean up early flag and address some minutia.
Link: http://lkml.kernel.org/r/1486673582-6979-3-git-send-email-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1486673582-6979-3-git-send-email-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ipc/shm.c | patch | blob | history |
diff --git a/ipc/shm.c b/ipc/shm.c
index 481d2a9c298ab14916543a040d4f45b9b69764e0..34c4344e8d4b2f00206208f1d2c8d48e85dd0e48 100644 (file)
--- a/ipc/shm.c
+++ b/ipc/shm.c
ulong *raddr, unsigned long shmlba)
{
struct shmid_kernel *shp;
- unsigned long addr;
+ unsigned long addr = (unsigned long)shmaddr;
unsigned long size;
struct file *file;
int err;
- unsigned long flags;
+ unsigned long flags = MAP_SHARED;
unsigned long prot;
int acc_mode;
struct ipc_namespace *ns;
err = -EINVAL;
if (shmid < 0)
goto out;
- else if ((addr = (ulong)shmaddr)) {
+
+ if (addr) {
if (addr & (shmlba - 1)) {
/*
* Round down to the nearest multiple of shmlba.
#endif
goto out;
}
- flags = MAP_SHARED | MAP_FIXED;
- } else {
- if ((shmflg & SHM_REMAP))
- goto out;
- flags = MAP_SHARED;
- }
+ flags |= MAP_FIXED;
+ } else if ((shmflg & SHM_REMAP))
+ goto out;
if (shmflg & SHM_RDONLY) {
prot = PROT_READ;