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bio: compensate bio_alloc error

This commit is contained in:
Thomas Schoebel-Theuer 2022-07-26 14:13:00 +02:00
parent 44784b4981
commit f39a457769
1 changed files with 4 additions and 2 deletions
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6
kernel/mars_bio.c
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@ -153,6 +153,7 @@ int make_bio(struct bio_brick *brick, void *data, int len, loff_t pos, struct bi
int bvec_count;
int rest_len = len;
int result_len = 0;
int ms = 0;
int status;
int i;
struct bio *bio = NULL;
@ -198,10 +199,11 @@ int make_bio(struct bio_brick *brick, void *data, int len, loff_t pos, struct bi
MARS_IO("sector_offset = %d data = %p pos = %lld rest_len = %d page_offset = %d page_len = %d bvec_count = %d\n", sector_offset, data, pos, rest_len, page_offset, page_len, bvec_count);
retry_bio_alloc:
bio = bio_alloc(GFP_MARS, bvec_count);
status = -ENOMEM;
if (unlikely(!bio)) {
goto out;
msleep_backoff(&ms);
goto retry_bio_alloc;
}
for (i = 0; i < bvec_count && rest_len > 0; i++) {