Need help to understand system calls

[Valdis.Kletnieks at vt.edu]

On Fri, 26 Jul 2013 00:09:21 +0530, Nitisha Jain said:

> But what is this perf output showing me then ? Are
> generic_file_buffered_write , ext4_file_write etc all system calls ?

No, they're C functions inside the kernel.
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