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dm: storage: remove GEOM support

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There is no GEOM framework in Linux. Remove dead code.

v1 -> v2:
- complete removal of the entire GEOM logic

Tracked-On: #1422
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Peter Fang 2018-10-09 15:47:55 -07:00 committed by Xie, Nanlin
parent b4a7a1ea1a
commit 7101ce87a7
1 changed files with 21 additions and 90 deletions
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111
devicemodel/hw/block_if.c
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@ -98,7 +98,6 @@ struct blockif_ctxt {
int magic;
int fd;
int isblk;
int isgeom;
int candelete;
int rdonly;
off_t size;
@ -233,99 +232,38 @@ blockif_complete(struct blockif_ctxt *bc, struct blockif_elem *be)
}
static void
blockif_proc(struct blockif_ctxt *bc, struct blockif_elem *be, uint8_t *buf)
blockif_proc(struct blockif_ctxt *bc, struct blockif_elem *be)
{
struct blockif_req *br;
off_t arg[2];
ssize_t clen, len, off, boff, voff;
int i, err;
ssize_t len;
int err;
br = be->req;
if (br->iovcnt <= 1)
buf = NULL;
err = 0;
switch (be->op) {
case BOP_READ:
if (buf == NULL) {
len = preadv(bc->fd, br->iov, br->iovcnt,
br->offset + bc->sub_file_start_lba);
if (len < 0)
err = errno;
else
br->resid -= len;
break;
}
i = 0;
off = voff = 0;
while (br->resid > 0) {
len = MIN(br->resid, MAXPHYS);
if (pread(bc->fd, buf, len, br->offset +
off + bc->sub_file_start_lba) < 0) {
err = errno;
break;
}
boff = 0;
do {
clen = MIN(len - boff, br->iov[i].iov_len -
voff);
memcpy(br->iov[i].iov_base + voff,
buf + boff, clen);
if (clen < br->iov[i].iov_len - voff)
voff += clen;
else {
i++;
voff = 0;
}
boff += clen;
} while (boff < len);
off += len;
len = preadv(bc->fd, br->iov, br->iovcnt,
br->offset + bc->sub_file_start_lba);
if (len < 0)
err = errno;
else
br->resid -= len;
}
break;
case BOP_WRITE:
if (bc->rdonly) {
err = EROFS;
break;
}
if (buf == NULL) {
len = pwritev(bc->fd, br->iov, br->iovcnt,
br->offset + bc->sub_file_start_lba);
if (len < 0)
err = errno;
else {
br->resid -= len;
err = blockif_flush_cache(bc);
}
break;
}
i = 0;
off = voff = 0;
while (br->resid > 0) {
len = MIN(br->resid, MAXPHYS);
boff = 0;
do {
clen = MIN(len - boff, br->iov[i].iov_len -
voff);
memcpy(buf + boff,
br->iov[i].iov_base + voff, clen);
if (clen < br->iov[i].iov_len - voff)
voff += clen;
else {
i++;
voff = 0;
}
boff += clen;
} while (boff < len);
if (pwrite(bc->fd, buf, len, br->offset +
off + bc->sub_file_start_lba) < 0) {
err = errno;
break;
}
off += len;
br->resid -= len;
}
err = blockif_flush_cache(bc);
len = pwritev(bc->fd, br->iov, br->iovcnt,
br->offset + bc->sub_file_start_lba);
if (len < 0)
err = errno;
else {
br->resid -= len;
err = blockif_flush_cache(bc);
}
break;
case BOP_FLUSH:
if (fsync(bc->fd))
@ -364,20 +302,16 @@ blockif_thr(void *arg)
struct blockif_ctxt *bc;
struct blockif_elem *be;
pthread_t t;
uint8_t *buf;
bc = arg;
if (bc->isgeom)
buf = malloc(MAXPHYS);
else
buf = NULL;
t = pthread_self();
pthread_mutex_lock(&bc->mtx);
for (;;) {
while (blockif_dequeue(bc, t, &be)) {
pthread_mutex_unlock(&bc->mtx);
blockif_proc(bc, be, buf);
blockif_proc(bc, be);
pthread_mutex_lock(&bc->mtx);
blockif_complete(bc, be);
}
@ -386,10 +320,8 @@ blockif_thr(void *arg)
break;
pthread_cond_wait(&bc->cond, &bc->mtx);
}
pthread_mutex_unlock(&bc->mtx);
if (buf)
free(buf);
pthread_mutex_unlock(&bc->mtx);
pthread_exit(NULL);
return NULL;
}
@ -486,7 +418,7 @@ blockif_open(const char *optstr, const char *ident)
/* struct diocgattr_arg arg; */
off_t size, psectsz, psectoff;
int fd, i, sectsz;
int writeback, ro, candelete, geom, ssopt, pssopt;
int writeback, ro, candelete, ssopt, pssopt;
long sz;
long long b;
int err_code = -1;
@ -565,7 +497,7 @@ blockif_open(const char *optstr, const char *ident)
size = sbuf.st_size;
sectsz = DEV_BSIZE;
psectsz = psectoff = 0;
candelete = geom = 0;
candelete = 0;
if (S_ISBLK(sbuf.st_mode)) {
/* get size */
@ -660,7 +592,6 @@ blockif_open(const char *optstr, const char *ident)
bc->magic = BLOCKIF_SIG;
bc->fd = fd;
bc->isblk = S_ISBLK(sbuf.st_mode);
bc->isgeom = geom;
bc->candelete = candelete;
bc->rdonly = ro;
bc->size = size;