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Introduce g_alloc_bio() as a waiting variant of g_new_bio().

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Use in places where we can sleep and where we previously failed to check
for a NULL pointer.

MT5 candidate.
This commit is contained in:
Poul-Henning Kamp 2004-08-27 14:43:11 +00:00
parent 6be4000968
commit a2033c9615
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=134379
2 changed files with 13 additions and 3 deletions
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1
sys/geom/geom.h
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@ -264,6 +264,7 @@ void g_io_deliver(struct bio *bp, int error);
int g_io_getattr(const char *attr, struct g_consumer *cp, int *len, void *ptr);
void g_io_request(struct bio *bp, struct g_consumer *cp);
struct bio *g_new_bio(void);
struct bio *g_alloc_bio(void);
void * g_read_data(struct g_consumer *cp, off_t offset, off_t length, int *error);
int g_write_data(struct g_consumer *cp, off_t offset, void *ptr, off_t length);
void g_print_bio(struct bio *bp);

15
sys/geom/geom_io.c
View File

@ -121,6 +121,15 @@ g_new_bio(void)
return (bp);
}
struct bio *
g_alloc_bio(void)
{
struct bio *bp;
bp = uma_zalloc(biozone, M_WAITOK | M_ZERO);
return (bp);
}
void
g_destroy_bio(struct bio *bp)
{
@ -166,7 +175,7 @@ g_io_getattr(const char *attr, struct g_consumer *cp, int *len, void *ptr)
int error;
g_trace(G_T_BIO, "bio_getattr(%s)", attr);
bp = g_new_bio();
bp = g_alloc_bio();
bp->bio_cmd = BIO_GETATTR;
bp->bio_done = NULL;
bp->bio_attribute = attr;
@ -439,7 +448,7 @@ g_read_data(struct g_consumer *cp, off_t offset, off_t length, int *error)
KASSERT(length >= 512 && length <= DFLTPHYS,
("g_read_data(): invalid length %jd", (intmax_t)length));
bp = g_new_bio();
bp = g_alloc_bio();
bp->bio_cmd = BIO_READ;
bp->bio_done = NULL;
bp->bio_offset = offset;
@ -467,7 +476,7 @@ g_write_data(struct g_consumer *cp, off_t offset, void *ptr, off_t length)
KASSERT(length >= 512 && length <= DFLTPHYS,
("g_write_data(): invalid length %jd", (intmax_t)length));
bp = g_new_bio();
bp = g_alloc_bio();
bp->bio_cmd = BIO_WRITE;
bp->bio_done = NULL;
bp->bio_offset = offset;