Ben Gras 75c5fe4c26 filesystems: return ENOSYS for REQ_PEEK
The filesystems already implement REQ_PEEK, but do not fully
use the new filesystem cache code yet. (Because it isn't committed
yet..) REQ_PEEK should be disabled for them until they do.

This indicates to VFS that they are not annotating their cache
blocks (in VM) with inode number/offset info, and therefore mmap()
shouldn't succeed on any of their files. (Most importantly exec()
won't fallback elegantly otherwise.)

Change-Id: Ic57ee422864b4bbc031eadba32973270907b02fd
2013-04-24 10:18:10 +00:00
2013-04-12 18:55:40 +00:00
2013-04-12 18:55:40 +00:00
2013-04-09 16:43:13 +02:00
2013-04-24 10:18:10 +00:00
2013-04-12 18:55:40 +00:00
2013-04-24 10:18:10 +00:00
2013-04-24 10:18:10 +00:00
2013-04-08 08:37:04 +02:00
2013-02-26 09:44:20 +00:00
2013-04-12 18:55:40 +00:00
2013-04-24 10:18:10 +00:00
2010-01-21 10:16:05 +00:00
2013-04-04 12:50:12 +00:00
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A fun microkernel meant to match modern usecases
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