diff options
| -rw-r--r-- | fs/btrfs/inode.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 05ff09e8a200..b6d549c993f6 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -28,6 +28,7 @@ #include <linux/magic.h> #include <linux/iversion.h> #include <linux/swap.h> +#include <linux/sched/mm.h> #include <asm/unaligned.h> #include "ctree.h" #include "disk-io.h" @@ -1172,7 +1173,7 @@ static noinline void async_cow_free(struct btrfs_work *work) * async_chunk's, freeing it ensures the whole array has been freed. */ if (atomic_dec_and_test(async_chunk->pending)) - kfree(async_chunk->pending); + kvfree(async_chunk->pending); } static int cow_file_range_async(struct inode *inode, struct page *locked_page, @@ -1188,6 +1189,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, u64 num_chunks = DIV_ROUND_UP(end - start, SZ_512K); int i; bool should_compress; + unsigned nofs_flag; unlock_extent(&BTRFS_I(inode)->io_tree, start, end); @@ -1199,7 +1201,10 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, should_compress = true; } - ctx = kmalloc(struct_size(ctx, chunks, num_chunks), GFP_NOFS); + nofs_flag = memalloc_nofs_save(); + ctx = kvmalloc(struct_size(ctx, chunks, num_chunks), GFP_KERNEL); + memalloc_nofs_restore(nofs_flag); + if (!ctx) { unsigned clear_bits = EXTENT_LOCKED | EXTENT_DELALLOC | EXTENT_DELALLOC_NEW | EXTENT_DEFRAG | |