Answer / veerasena

atomic variables are the variables which can only be
manipulated atomically using atomic APIs. Linux declares
variable as atomic by using the type atomic_t. Basically
used a way to achieve synchronization.

an atomic operation is one which cannot be (or is not)
interrupted by concurrent operations and cannot be broken up
into smaller parts that could be performed by different
processors.

Atomic function is a function which is executed to
completion without interruption. Atomic function can also be
seen as a small critical section which is executed without
interruption, locking.

what is stored at /lib/modules ?

2 Answers   NetApp,

---

What does exec family return?

1 Answers  

---

Port number is already in use .. how to fix for apache..?

1 Answers   Google,

---

How to give the root permision to users?

3 Answers   Wipro,

---

what is nis server

13 Answers  

---

linux file defaults permition

8 Answers  

---

if root user forget the password how to change it?

4 Answers   Wipro,

---

what are Softirq's and how many major numbers be allocated in the linux kernel(2.4) ?

1 Answers  

---

how to configure sendmail server on red hat linux version 4 and what and all we Require?

3 Answers   Wipro,

---

what is sudo on linux?

3 Answers   IBM,

---

what is samba, what is configuration file, how it will work?

3 Answers   Wipro,

---

what is the diff b/w MUTEX and semaphore?

12 Answers   Sony, TCS,

---