Factor outstanding I/O error handling
Cleanup: setting an outstanding error on a mapping was open coded too many
times. Factor it out in mapping_set_error().
Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index b4def5e..8a83537 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -11,6 +11,7 @@
#include <linux/compiler.h>
#include <asm/uaccess.h>
#include <linux/gfp.h>
+#include <linux/bitops.h>
/*
* Bits in mapping->flags. The lower __GFP_BITS_SHIFT bits are the page
@@ -19,6 +20,16 @@
#define AS_EIO (__GFP_BITS_SHIFT + 0) /* IO error on async write */
#define AS_ENOSPC (__GFP_BITS_SHIFT + 1) /* ENOSPC on async write */
+static inline void mapping_set_error(struct address_space *mapping, int error)
+{
+ if (error) {
+ if (error == -ENOSPC)
+ set_bit(AS_ENOSPC, &mapping->flags);
+ else
+ set_bit(AS_EIO, &mapping->flags);
+ }
+}
+
static inline gfp_t mapping_gfp_mask(struct address_space * mapping)
{
return (__force gfp_t)mapping->flags & __GFP_BITS_MASK;