[PATCH 1/4] AFS: Add TestSetPageError()

[David Howells]

Add a TestSetPageError() macro to the suite of page flag manipulators.  This
can be used by AFS to prevent over-excision of rejected writes from the page
cache.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

 include/linux/page-flags.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ae2d79f..cc8d952 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -121,6 +121,7 @@
 #define PageError(page)		test_bit(PG_error, &(page)->flags)
 #define SetPageError(page)	set_bit(PG_error, &(page)->flags)
 #define ClearPageError(page)	clear_bit(PG_error, &(page)->flags)
+#define TestSetPageError(page)	test_and_set_bit(PG_error, &(page)->flags)
 
 #define PageReferenced(page)	test_bit(PG_referenced, &(page)->flags)
 #define SetPageReferenced(page)	set_bit(PG_referenced, &(page)->flags)

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/