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BUG_ON() Conversion in ipc/shm.c
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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parent
7ec7073809
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9ba025f108
15
ipc/shm.c
15
ipc/shm.c
@ -91,8 +91,8 @@ static inline int shm_addid(struct shmid_kernel *shp)
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static inline void shm_inc (int id) {
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struct shmid_kernel *shp;
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if(!(shp = shm_lock(id)))
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BUG();
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shp = shm_lock(id);
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BUG_ON(!shp);
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shp->shm_atim = get_seconds();
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shp->shm_lprid = current->tgid;
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shp->shm_nattch++;
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@ -142,8 +142,8 @@ static void shm_close (struct vm_area_struct *shmd)
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mutex_lock(&shm_ids.mutex);
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/* remove from the list of attaches of the shm segment */
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if(!(shp = shm_lock(id)))
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BUG();
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shp = shm_lock(id);
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BUG_ON(!shp);
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shp->shm_lprid = current->tgid;
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shp->shm_dtim = get_seconds();
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shp->shm_nattch--;
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@ -283,8 +283,7 @@ asmlinkage long sys_shmget (key_t key, size_t size, int shmflg)
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err = -EEXIST;
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} else {
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shp = shm_lock(id);
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if(shp==NULL)
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BUG();
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BUG_ON(shp==NULL);
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if (shp->shm_segsz < size)
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err = -EINVAL;
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else if (ipcperms(&shp->shm_perm, shmflg))
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@ -774,8 +773,8 @@ invalid:
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up_write(¤t->mm->mmap_sem);
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mutex_lock(&shm_ids.mutex);
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if(!(shp = shm_lock(shmid)))
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BUG();
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shp = shm_lock(shmid);
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BUG_ON(!shp);
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shp->shm_nattch--;
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if(shp->shm_nattch == 0 &&
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shp->shm_perm.mode & SHM_DEST)
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