Commit 9f74ae8c authored by Gao Xiang's avatar Gao Xiang
Browse files

erofs: shorten bvecs[] for file-backed mounts 



BIO_MAX_VECS is too large for __GFP_NOFAIL allocation.  We could use
a mempool (since BIOs can always proceed), but it seems overly
complicated for now.

Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarGao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250107082825.74242-1-hsiangkao@linux.alibaba.com
parent 54ab25d0

fs/erofs/fileio.c

+2 −2
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
#include <trace/events/erofs.h>



struct erofs_fileio_rq {

	struct bio_vec bvecs[BIO_MAX_VECS];

	struct bio_vec bvecs[16];

	struct bio bio;

	struct kiocb iocb;

	struct super_block *sb;
@@ -68,7 +68,7 @@ static struct erofs_fileio_rq *erofs_fileio_rq_alloc(struct erofs_map_dev *mdev) 
	struct erofs_fileio_rq *rq = kzalloc(sizeof(*rq),

					     GFP_KERNEL | __GFP_NOFAIL);



	bio_init(&rq->bio, NULL, rq->bvecs, BIO_MAX_VECS, REQ_OP_READ);

	bio_init(&rq->bio, NULL, rq->bvecs, ARRAY_SIZE(rq->bvecs), REQ_OP_READ);

	rq->iocb.ki_filp = mdev->m_dif->file;

	rq->sb = mdev->m_sb;

	return rq;