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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2007-07-17 07:03:03 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 13:22:59 -0400
commitf0e47c229b489e37ba7e4159ef7f9cf9ccd44e19 (patch)
tree52ec70d775bb7f7eafa6863829646ee49cbf427f /include/asm-arm/pgtable.h
parent5ee403f584a67fb8725cca4d55218925b9295528 (diff)
mm: remove ptep_establish()
The last user of ptep_establish in mm/ is long gone. Remove the architecture primitive as well. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-arm/pgtable.h')
-rw-r--r--include/asm-arm/pgtable.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index cb4c2c9d000a..d2e8171d1d4e 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -83,14 +83,14 @@
83 * means that a write to a clean page will cause a permission fault, and 83 * means that a write to a clean page will cause a permission fault, and
84 * the Linux MM layer will mark the page dirty via handle_pte_fault(). 84 * the Linux MM layer will mark the page dirty via handle_pte_fault().
85 * For the hardware to notice the permission change, the TLB entry must 85 * For the hardware to notice the permission change, the TLB entry must
86 * be flushed, and ptep_establish() does that for us. 86 * be flushed, and ptep_set_access_flags() does that for us.
87 * 87 *
88 * The "accessed" or "young" bit is emulated by a similar method; we only 88 * The "accessed" or "young" bit is emulated by a similar method; we only
89 * allow accesses to the page if the "young" bit is set. Accesses to the 89 * allow accesses to the page if the "young" bit is set. Accesses to the
90 * page will cause a fault, and handle_pte_fault() will set the young bit 90 * page will cause a fault, and handle_pte_fault() will set the young bit
91 * for us as long as the page is marked present in the corresponding Linux 91 * for us as long as the page is marked present in the corresponding Linux
92 * PTE entry. Again, ptep_establish() will ensure that the TLB is up to 92 * PTE entry. Again, ptep_set_access_flags() will ensure that the TLB is
93 * date. 93 * up to date.
94 * 94 *
95 * However, when the "young" bit is cleared, we deny access to the page 95 * However, when the "young" bit is cleared, we deny access to the page
96 * by clearing the hardware PTE. Currently Linux does not flush the TLB 96 * by clearing the hardware PTE. Currently Linux does not flush the TLB