Hey Lukas,
On Tue, Apr 09, 2013 at 11:14:14AM +0200, Lukas Czerner wrote:
> ->invalidatepage() aop now accepts range to invalidate so we can make
> use of it in xfs_vm_invalidatepage()
>
> Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
> Cc: xfs@xxxxxxxxxxx
> ---
> fs/xfs/xfs_aops.c | 5 +++--
> fs/xfs/xfs_trace.h | 41 ++++++++++++++++++++++++++++++++++++++++-
> 2 files changed, 43 insertions(+), 3 deletions(-)
>
> diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
> index e426796..e8018d3 100644
> --- a/fs/xfs/xfs_aops.c
> +++ b/fs/xfs/xfs_aops.c
> @@ -826,8 +826,9 @@ xfs_vm_invalidatepage(
> unsigned int offset,
> unsigned int length)
> {
> - trace_xfs_invalidatepage(page->mapping->host, page, offset);
> - block_invalidatepage(page, offset, PAGE_CACHE_SIZE - offset);
> + trace_xfs_invalidatepage(page->mapping->host, page, offset,
> + length);
> + block_invalidatepage(page, offset, length);
> }
>
> /*
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index 16a8129..91d6434 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -991,7 +991,46 @@ DEFINE_EVENT(xfs_page_class, name, \
> TP_ARGS(inode, page, off))
> DEFINE_PAGE_EVENT(xfs_writepage);
> DEFINE_PAGE_EVENT(xfs_releasepage);
> -DEFINE_PAGE_EVENT(xfs_invalidatepage);
I think it might be better if we continue using the xfs_invalidatepage trace
point as part of the xfs_page_class rather than as a separate trace point, like below.
Else this looks great.
Reviewed-by: Ben Myers <bpm@xxxxxxx>
Regards,
Ben
Index: xfs/fs/xfs/xfs_aops.c
===================================================================
--- xfs.orig/fs/xfs/xfs_aops.c
+++ xfs/fs/xfs/xfs_aops.c
@@ -825,7 +825,7 @@ xfs_vm_invalidatepage(
struct page *page,
unsigned long offset)
{
- trace_xfs_invalidatepage(page->mapping->host, page, offset);
+ trace_xfs_invalidatepage(page->mapping->host, page, offset, 0);
block_invalidatepage(page, offset);
}
@@ -920,7 +920,7 @@ xfs_vm_writepage(
int count = 0;
int nonblocking = 0;
- trace_xfs_writepage(inode, page, 0);
+ trace_xfs_writepage(inode, page, 0, 0);
ASSERT(page_has_buffers(page));
@@ -1151,7 +1151,7 @@ xfs_vm_releasepage(
{
int delalloc, unwritten;
- trace_xfs_releasepage(page->mapping->host, page, 0);
+ trace_xfs_releasepage(page->mapping->host, page, 0, 0);
xfs_count_page_state(page, &delalloc, &unwritten);
Index: xfs/fs/xfs/xfs_trace.h
===================================================================
--- xfs.orig/fs/xfs/xfs_trace.h
+++ xfs/fs/xfs/xfs_trace.h
@@ -974,14 +974,16 @@ DEFINE_RW_EVENT(xfs_file_splice_read);
DEFINE_RW_EVENT(xfs_file_splice_write);
DECLARE_EVENT_CLASS(xfs_page_class,
- TP_PROTO(struct inode *inode, struct page *page, unsigned long off),
- TP_ARGS(inode, page, off),
+ TP_PROTO(struct inode *inode, struct page *page, unsigned long off,
+ unsigned int len),
+ TP_ARGS(inode, page, off, len),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_ino_t, ino)
__field(pgoff_t, pgoff)
__field(loff_t, size)
__field(unsigned long, offset)
+ __field(unsigned int, length)
__field(int, delalloc)
__field(int, unwritten)
),
@@ -995,24 +997,27 @@ DECLARE_EVENT_CLASS(xfs_page_class,
__entry->pgoff = page_offset(page);
__entry->size = i_size_read(inode);
__entry->offset = off;
+ __entry->length = len;
__entry->delalloc = delalloc;
__entry->unwritten = unwritten;
),
TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx "
- "delalloc %d unwritten %d",
+ "length %x delalloc %d unwritten %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->ino,
__entry->pgoff,
__entry->size,
__entry->offset,
+ __entry->length,
__entry->delalloc,
__entry->unwritten)
)
#define DEFINE_PAGE_EVENT(name) \
DEFINE_EVENT(xfs_page_class, name, \
- TP_PROTO(struct inode *inode, struct page *page, unsigned long off), \
- TP_ARGS(inode, page, off))
+ TP_PROTO(struct inode *inode, struct page *page, unsigned long off, \
+ unsigned int len), \
+ TP_ARGS(inode, page, off, len))
DEFINE_PAGE_EVENT(xfs_writepage);
DEFINE_PAGE_EVENT(xfs_releasepage);
DEFINE_PAGE_EVENT(xfs_invalidatepage);
--
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