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mm: remove nopage

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Nothing in the tree uses nopage any more.  Remove support for it in the
core mm code and documentation (and a few stray references to it in
comments).

Signed-off-by: Nick Piggin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Nick Piggin 2008-04-28 02:12:10 -07:00 • committed by Linus Torvalds
commit 3c18ddd160
9 changed files with 11 additions and 43 deletions
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9
Documentation/feature-removal-schedule.txt
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@ -128,15 +128,6 @@ Who: Arjan van de Ven <[email protected]>
---------------------------
What: vm_ops.nopage
When: Soon, provided in-kernel callers have been converted
Why: This interface is replaced by vm_ops.fault, but it has been around
forever, is used by a lot of drivers, and doesn't cost much to
maintain.
Who: Nick Piggin <[email protected]>
---------------------------
What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment
When: October 2008
Why: The stacking of class devices makes these values misleading and

3
Documentation/filesystems/Locking
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@ -511,7 +511,6 @@ prototypes:
void (*open)(struct vm_area_struct*);
void (*close)(struct vm_area_struct*);
int (*fault)(struct vm_area_struct*, struct vm_fault *);
struct page *(*nopage)(struct vm_area_struct*, unsigned long, int *);
int (*page_mkwrite)(struct vm_area_struct *, struct page *);
locking rules:
@ -519,7 +518,6 @@ locking rules:
open: no yes
close: no yes
fault: no yes
nopage: no yes
page_mkwrite: no yes no
->page_mkwrite() is called when a previously read-only page is
@ -537,4 +535,3 @@ NULL.
ipc/shm.c::shm_delete() - may need BKL.
->read() and ->write() in many drivers are (probably) missing BKL.
drivers/sgi/char/graphics.c::sgi_graphics_nopage() - may need BKL.