diff options
| -rw-r--r-- | fs/bcachefs/compress.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/bcachefs/compress.c b/fs/bcachefs/compress.c index 20bde73a17a8..6115e0294e4d 100644 --- a/fs/bcachefs/compress.c +++ b/fs/bcachefs/compress.c @@ -7,6 +7,7 @@ #include "super-io.h" #include <linux/lz4.h> +#include <linux/sched/mm.h> #include <linux/zlib.h> #include <linux/zstd.h> @@ -63,7 +64,7 @@ static struct bbuf __bio_map_or_bounce(struct bch_fs *c, struct bio *bio, struct bbuf ret; struct bio_vec bv; struct bvec_iter iter; - unsigned nr_pages = 0; + unsigned nr_pages = 0, flags; struct page *stack_pages[16]; struct page **pages = NULL; void *data; @@ -103,7 +104,10 @@ static struct bbuf __bio_map_or_bounce(struct bch_fs *c, struct bio *bio, __bio_for_each_segment(bv, bio, iter, start) pages[nr_pages++] = bv.bv_page; + flags = memalloc_nofs_save(); data = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL); + memalloc_nofs_restore(flags); + if (pages != stack_pages) kfree(pages); |