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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-05-22 00:23:40 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:39 +0300 |
| commit | a1b0da4555c16bf274f705dc76c9b297f54bf6c8 (patch) | |
| tree | b11e9fe5a6f0be53777b61179dd51bd40d8bb701 /fs/bcachefs/compress.c | |
| parent | 0d0e77f45fe806a80af76501d5422437692e158b (diff) | |
| download | linux-a1b0da4555c16bf274f705dc76c9b297f54bf6c8.tar.xz | |
bcachefs: Wrap vmap() in memalloc_nofs_save()/restore()
vmalloc() and vmap() don't take GFP_NOFS - this should be pushed further
up the IO path, but for now just doing the simple fix.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/compress.c')
| -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); |