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authorHugh Dickins <hugh@veritas.com>2005-10-29 18:16:41 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-29 21:40:42 -0700
commitb8072f099b7829a6ff3eba618e1d079a81f753f8 (patch)
tree80bf801b68ecf5f29a61f0f4fd5976b4daa91c6a /mm
parentf412ac08c9861b4791af0145934c22f1458686da (diff)
[PATCH] mm: update comments to pte lock
Updated several references to page_table_lock in common code comments. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/filemap.c6
-rw-r--r--mm/rmap.c10
-rw-r--r--mm/swap_state.c3
3 files changed, 9 insertions, 10 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index f560b41c8f6..036599d1177 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -66,7 +66,7 @@ generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
*
* ->mmap_sem
* ->i_mmap_lock
- * ->page_table_lock (various places, mainly in mmap.c)
+ * ->page_table_lock or pte_lock (various, mainly in memory.c)
* ->mapping->tree_lock (arch-dependent flush_dcache_mmap_lock)
*
* ->mmap_sem
@@ -86,9 +86,9 @@ generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
* ->anon_vma.lock (vma_adjust)
*
* ->anon_vma.lock
- * ->page_table_lock (anon_vma_prepare and various)
+ * ->page_table_lock or pte_lock (anon_vma_prepare and various)
*
- * ->page_table_lock
+ * ->page_table_lock or pte_lock
* ->swap_lock (try_to_unmap_one)
* ->private_lock (try_to_unmap_one)
* ->tree_lock (try_to_unmap_one)
diff --git a/mm/rmap.c b/mm/rmap.c
index a7427bbf57e..914d04b98be 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -32,7 +32,7 @@
* page->flags PG_locked (lock_page)
* mapping->i_mmap_lock
* anon_vma->lock
- * mm->page_table_lock
+ * mm->page_table_lock or pte_lock
* zone->lru_lock (in mark_page_accessed)
* swap_lock (in swap_duplicate, swap_info_get)
* mmlist_lock (in mmput, drain_mmlist and others)
@@ -244,7 +244,7 @@ unsigned long page_address_in_vma(struct page *page, struct vm_area_struct *vma)
/*
* Check that @page is mapped at @address into @mm.
*
- * On success returns with mapped pte and locked mm->page_table_lock.
+ * On success returns with pte mapped and locked.
*/
pte_t *page_check_address(struct page *page, struct mm_struct *mm,
unsigned long address, spinlock_t **ptlp)
@@ -445,7 +445,7 @@ int page_referenced(struct page *page, int is_locked, int ignore_token)
* @vma: the vm area in which the mapping is added
* @address: the user virtual address mapped
*
- * The caller needs to hold the mm->page_table_lock.
+ * The caller needs to hold the pte lock.
*/
void page_add_anon_rmap(struct page *page,
struct vm_area_struct *vma, unsigned long address)
@@ -468,7 +468,7 @@ void page_add_anon_rmap(struct page *page,
* page_add_file_rmap - add pte mapping to a file page
* @page: the page to add the mapping to
*
- * The caller needs to hold the mm->page_table_lock.
+ * The caller needs to hold the pte lock.
*/
void page_add_file_rmap(struct page *page)
{
@@ -483,7 +483,7 @@ void page_add_file_rmap(struct page *page)
* page_remove_rmap - take down pte mapping from a page
* @page: page to remove mapping from
*
- * Caller needs to hold the mm->page_table_lock.
+ * The caller needs to hold the pte lock.
*/
void page_remove_rmap(struct page *page)
{
diff --git a/mm/swap_state.c b/mm/swap_state.c
index cafc1edcbeb..dfd9a46755b 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -259,8 +259,7 @@ static inline void free_swap_cache(struct page *page)
/*
* Perform a free_page(), also freeing any swap cache associated with
- * this page if it is the last user of the page. Can not do a lock_page,
- * as we are holding the page_table_lock spinlock.
+ * this page if it is the last user of the page.
*/
void free_page_and_swap_cache(struct page *page)
{