1 files changed, 1 insertions, 109 deletions

diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c
index 1da94237a8cf..c557a030acfe 100644
--- a/fs/xfs/kmem.c
+++ b/fs/xfs/kmem.c
@@ -4,7 +4,6 @@
  * All Rights Reserved.
  */
 #include "xfs.h"
-#include <linux/backing-dev.h>
 #include "xfs_message.h"
 #include "xfs_trace.h"
 
@@ -26,113 +25,6 @@ kmem_alloc(size_t size, xfs_km_flags_t flags)
 	"%s(%u) possible memory allocation deadlock size %u in %s (mode:0x%x)",
 				current->comm, current->pid,
 				(unsigned int)size, __func__, lflags);
-		congestion_wait(BLK_RW_ASYNC, HZ/50);
-	} while (1);
-}
-
-
-/*
- * __vmalloc() will allocate data pages and auxiliary structures (e.g.
- * pagetables) with GFP_KERNEL, yet we may be under GFP_NOFS context here. Hence
- * we need to tell memory reclaim that we are in such a context via
- * PF_MEMALLOC_NOFS to prevent memory reclaim re-entering the filesystem here
- * and potentially deadlocking.
- */
-static void *
-__kmem_vmalloc(size_t size, xfs_km_flags_t flags)
-{
-	unsigned nofs_flag = 0;
-	void	*ptr;
-	gfp_t	lflags = kmem_flags_convert(flags);
-
-	if (flags & KM_NOFS)
-		nofs_flag = memalloc_nofs_save();
-
-	ptr = __vmalloc(size, lflags, PAGE_KERNEL);
-
-	if (flags & KM_NOFS)
-		memalloc_nofs_restore(nofs_flag);
-
-	return ptr;
-}
-
-/*
- * Same as kmem_alloc_large, except we guarantee the buffer returned is aligned
- * to the @align_mask. We only guarantee alignment up to page size, we'll clamp
- * alignment at page size if it is larger. vmalloc always returns a PAGE_SIZE
- * aligned region.
- */
-void *
-kmem_alloc_io(size_t size, int align_mask, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	trace_kmem_alloc_io(size, flags, _RET_IP_);
-
-	if (WARN_ON_ONCE(align_mask >= PAGE_SIZE))
-		align_mask = PAGE_SIZE - 1;
-
-	ptr = kmem_alloc(size, flags | KM_MAYFAIL);
-	if (ptr) {
-		if (!((uintptr_t)ptr & align_mask))
-			return ptr;
-		kfree(ptr);
-	}
-	return __kmem_vmalloc(size, flags);
-}
-
-void *
-kmem_alloc_large(size_t size, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	trace_kmem_alloc_large(size, flags, _RET_IP_);
-
-	ptr = kmem_alloc(size, flags | KM_MAYFAIL);
-	if (ptr)
-		return ptr;
-	return __kmem_vmalloc(size, flags);
-}
-
-void *
-kmem_realloc(const void *old, size_t newsize, xfs_km_flags_t flags)
-{
-	int	retries = 0;
-	gfp_t	lflags = kmem_flags_convert(flags);
-	void	*ptr;
-
-	trace_kmem_realloc(newsize, flags, _RET_IP_);
-
-	do {
-		ptr = krealloc(old, newsize, lflags);
-		if (ptr || (flags & KM_MAYFAIL))
-			return ptr;
-		if (!(++retries % 100))
-			xfs_err(NULL,
-	"%s(%u) possible memory allocation deadlock size %zu in %s (mode:0x%x)",
-				current->comm, current->pid,
-				newsize, __func__, lflags);
-		congestion_wait(BLK_RW_ASYNC, HZ/50);
-	} while (1);
-}
-
-void *
-kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags)
-{
-	int	retries = 0;
-	gfp_t	lflags = kmem_flags_convert(flags);
-	void	*ptr;
-
-	trace_kmem_zone_alloc(kmem_cache_size(zone), flags, _RET_IP_);
-	do {
-		ptr = kmem_cache_alloc(zone, lflags);
-		if (ptr || (flags & KM_MAYFAIL))
-			return ptr;
-		if (!(++retries % 100))
-			xfs_err(NULL,
-		"%s(%u) possible memory allocation deadlock in %s (mode:0x%x)",
-				current->comm, current->pid,
-				__func__, lflags);
-		congestion_wait(BLK_RW_ASYNC, HZ/50);
+		memalloc_retry_wait(lflags);
 	} while (1);
 }