Displaying 6 results from an estimated 6 matches for "ext4_wait_dax_page".
2020 Sep 26
1
[PATCH 1/2] ext4/xfs: add page refcount helper
On Fri, Sep 25, 2020 at 01:44:41PM -0700, Ralph Campbell wrote:
> error = ___wait_var_event(&page->_refcount,
> - atomic_read(&page->_refcount) == 1,
> + dax_layout_is_idle_page(page),
> TASK_INTERRUPTIBLE, 0, 0,
> ext4_wait_dax_page(ei));
> +++ b/fs/xfs/xfs_file.c
> @@ -750,7 +750,7 @@ xfs_break_dax_layouts(
>
> *retry = true;
> return ___wait_var_event(&page->_refcount,
> - atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE,
> + dax_layout_is_idle_page(page), TASK_INTERRUPTIBL...
2020 Oct 01
0
[RFC PATCH v3 1/2] ext4/xfs: add page refcount helper
....4c3b80e68121 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3926,10 +3926,7 @@ int ext4_break_layouts(struct inode *inode)
if (!page)
return 0;
- error = ___wait_var_event(&page->_refcount,
- atomic_read(&page->_refcount) == 1,
- TASK_INTERRUPTIBLE, 0, 0,
- ext4_wait_dax_page(ei));
+ error = dax_wait_page(ei, page, ext4_wait_dax_page);
} while (error == 0);
return error;
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 3d1b95124744..a5304aaeaa3a 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -749,9 +749,7 @@ xfs_break_dax_layouts(
return 0;...
2020 Sep 25
1
[PATCH 1/2] ext4/xfs: add page refcount helper
...--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3927,7 +3927,7 @@ int ext4_break_layouts(struct inode *inode)
return 0;
error = ___wait_var_event(&page->_refcount,
- atomic_read(&page->_refcount) == 1,
+ dax_layout_is_idle_page(page),
TASK_INTERRUPTIBLE, 0, 0,
ext4_wait_dax_page(ei));
} while (error == 0);
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index a29f78a663ca..29ab96541bc1 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -750,7 +750,7 @@ xfs_break_dax_layouts(
*retry = true;
return ___wait_var_event(&page->_refcount,
- atomic_read(...
2020 Sep 25
0
[PATCH 1/2] ext4/xfs: add page refcount helper
...error = ___wait_var_event(&page->_refcount,
> - atomic_read(&page->_refcount) == 1,
> + dax_layout_is_idle_page(page),
> TASK_INTERRUPTIBLE, 0, 0,
> ext4_wait_dax_page(ei));
> } while (error == 0);
> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> index a29f78a663ca..29ab96541bc1 100644
> --- a/fs/xfs/xfs_file.c
> +++ b/fs/xfs/xfs_file.c
> @@ -750,7 +750,7 @@ xfs_break_dax_layouts(
>
> *retry = true;
> retur...
2020 Sep 25
6
[RFC PATCH v2 0/2] mm: remove extra ZONE_DEVICE struct page refcount
Matthew Wilcox, Ira Weiny, and others have complained that ZONE_DEVICE
struct page reference counting is ugly because they are "free" when the
reference count is one instead of zero. This leads to explicit checks
for ZONE_DEVICE pages in places like put_page(), GUP, THP splitting, and
page migration which have to adjust the expected reference count when
determining if the page is
2020 Oct 01
8
[RFC PATCH v3 0/2] mm: remove extra ZONE_DEVICE struct page refcount
This is still an RFC because after looking at the pmem/dax code some
more, I realized that the ZONE_DEVICE struct pages are being inserted
into the process' page tables with vmf_insert_mixed() and a zero
refcount on the ZONE_DEVICE struct page. This is sort of OK because
insert_pfn() increments the reference count on the pgmap which is what
prevents memunmap_pages() from freeing the struct