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Diffstat (limited to 'fs/fat/fat_write.c')
-rw-r--r--fs/fat/fat_write.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index b16a39d3ff..a2682b5f46 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -500,8 +500,6 @@ flush_dir(fat_itr *itr)
nsects * mydata->sect_size);
}
-static __u8 tmpbuf_cluster[MAX_CLUSTSIZE] __aligned(ARCH_DMA_MINALIGN);
-
/*
* Read and modify data on existing and consecutive cluster blocks
*/
@@ -509,6 +507,7 @@ static int
get_set_cluster(fsdata *mydata, __u32 clustnum, loff_t pos, __u8 *buffer,
loff_t size, loff_t *gotsize)
{
+ static u8 *tmpbuf_cluster;
unsigned int bytesperclust = mydata->clust_size * mydata->sect_size;
__u32 startsect;
loff_t wsize;
@@ -518,6 +517,12 @@ get_set_cluster(fsdata *mydata, __u32 clustnum, loff_t pos, __u8 *buffer,
if (!size)
return 0;
+ if (!tmpbuf_cluster) {
+ tmpbuf_cluster = memalign(ARCH_DMA_MINALIGN, MAX_CLUSTSIZE);
+ if (!tmpbuf_cluster)
+ return -1;
+ }
+
assert(pos < bytesperclust);
startsect = clust_to_sect(mydata, clustnum);