diff options
| author | Andrew Morton <akpm@osdl.org> | 2006-01-08 01:02:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:13:49 -0800 |
| commit | b33291c0bcecfa44baa905964eec4b8815dcbcdf (patch) | |
| tree | 126c3f84456fd2ee80ef54667615631f7ce31cdc /ipc | |
| parent | b3f3d6141f8636f627bf19fd44eaf59a52637ac8 (diff) | |
| download | lwn-b33291c0bcecfa44baa905964eec4b8815dcbcdf.tar.gz lwn-b33291c0bcecfa44baa905964eec4b8815dcbcdf.zip | |
[PATCH] ipc: expand shm_flags
Unobfsucate this struct member
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/shm.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index 0ef4a1cf3e27..0b92e874fc06 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -34,8 +34,6 @@ #include "util.h" -#define shm_flags shm_perm.mode - static struct file_operations shm_file_operations; static struct vm_operations_struct shm_vm_ops; @@ -148,7 +146,7 @@ static void shm_close (struct vm_area_struct *shmd) shp->shm_dtim = get_seconds(); shp->shm_nattch--; if(shp->shm_nattch == 0 && - shp->shm_flags & SHM_DEST) + shp->shm_perm.mode & SHM_DEST) shm_destroy (shp); else shm_unlock(shp); @@ -205,7 +203,7 @@ static int newseg (key_t key, int shmflg, size_t size) return -ENOMEM; shp->shm_perm.key = key; - shp->shm_flags = (shmflg & S_IRWXUGO); + shp->shm_perm.mode = (shmflg & S_IRWXUGO); shp->mlock_user = NULL; shp->shm_perm.security = NULL; @@ -345,7 +343,7 @@ static inline unsigned long copy_shmid_from_user(struct shm_setbuf *out, void __ out->uid = tbuf.shm_perm.uid; out->gid = tbuf.shm_perm.gid; - out->mode = tbuf.shm_flags; + out->mode = tbuf.shm_perm.mode; return 0; } @@ -358,7 +356,7 @@ static inline unsigned long copy_shmid_from_user(struct shm_setbuf *out, void __ out->uid = tbuf_old.shm_perm.uid; out->gid = tbuf_old.shm_perm.gid; - out->mode = tbuf_old.shm_flags; + out->mode = tbuf_old.shm_perm.mode; return 0; } @@ -560,13 +558,13 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf) if (!is_file_hugepages(shp->shm_file)) { err = shmem_lock(shp->shm_file, 1, user); if (!err) { - shp->shm_flags |= SHM_LOCKED; + shp->shm_perm.mode |= SHM_LOCKED; shp->mlock_user = user; } } } else if (!is_file_hugepages(shp->shm_file)) { shmem_lock(shp->shm_file, 0, shp->mlock_user); - shp->shm_flags &= ~SHM_LOCKED; + shp->shm_perm.mode &= ~SHM_LOCKED; shp->mlock_user = NULL; } shm_unlock(shp); @@ -605,7 +603,7 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf) goto out_unlock_up; if (shp->shm_nattch){ - shp->shm_flags |= SHM_DEST; + shp->shm_perm.mode |= SHM_DEST; /* Do not find it any more */ shp->shm_perm.key = IPC_PRIVATE; shm_unlock(shp); @@ -644,7 +642,7 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf) shp->shm_perm.uid = setbuf.uid; shp->shm_perm.gid = setbuf.gid; - shp->shm_flags = (shp->shm_flags & ~S_IRWXUGO) + shp->shm_perm.mode = (shp->shm_perm.mode & ~S_IRWXUGO) | (setbuf.mode & S_IRWXUGO); shp->shm_ctim = get_seconds(); break; @@ -777,7 +775,7 @@ invalid: BUG(); shp->shm_nattch--; if(shp->shm_nattch == 0 && - shp->shm_flags & SHM_DEST) + shp->shm_perm.mode & SHM_DEST) shm_destroy (shp); else shm_unlock(shp); @@ -902,7 +900,7 @@ static int sysvipc_shm_proc_show(struct seq_file *s, void *it) return seq_printf(s, format, shp->shm_perm.key, shp->id, - shp->shm_flags, + shp->shm_perm.mode, shp->shm_segsz, shp->shm_cprid, shp->shm_lprid, |