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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-12-11 20:38:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-12-11 20:38:17 -0800 |
| commit | 67121172f9753f38689651b613a4850e0e75876f (patch) | |
| tree | cfb6ea8365c44a43ee254385c7d246f0418cedd0 /mm/readahead.c | |
| parent | 913f2d792ff584bf9ebf5968472b3e4ffe0fd9c8 (diff) | |
| download | op-kernel-dev-67121172f9753f38689651b613a4850e0e75876f.zip op-kernel-dev-67121172f9753f38689651b613a4850e0e75876f.tar.gz | |
Allow arbitrary read-only shared pfn-remapping too
The VM layer (for historical reasons) turns a read-only shared mmap into
a private-like mapping with the VM_MAYWRITE bit clear. Thus checking
just VM_SHARED isn't actually sufficient.
So use a trivial helper function for the cases where we wanted to inquire
if a mapping was COW-like or not.
Moo!
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/readahead.c')
0 files changed, 0 insertions, 0 deletions
