readahead() which is Linux-only vs. posix_fadvise()

[Henrik Nordstrom]

ons 2007-05-09 klockan 21:35 -0400 skrev derrell at samba.org:

> In researching this, I discovered what appears to be a POSIX replacement.  It
> looks like readahead is equivalent to posix_fadvise(..., POSIX_FADV_WILLNEED).

Not entirely equivalent. readahead() blocks, while POSIX_FADV_WILLNEED
doesn't..

Regards
Henrik
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