Hi all! On 15/10/18 14:17, Lev Olshvang wrote: [...] > I am debugging kernel module and use SystemTap to monitor requested and > freed memory. > > I see that SystemTap statistics shows that kfree() is called 5 times more > than kalloc. > It happens not only on my module, it happens on VirtualBox vboxsf driver as > well. > > See hits count below kmalloc hits: 21561 > kfree hits: 102175
"kfree(NULL)" is a legal NO-OP (and basically all other similar
functions are expected to gracefully accept a NULL pointer).
MfG,
Bernd
--
"I dislike type abstraction if it has no real reason. And saving
on typing is not a good reason - if your typing speed is the main
issue when you're coding, you're doing something seriously wrong."
- Linus Torvalds
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Description: application/pgp-keys
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