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afs: Introduce an afs_get_read() refcount helper

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Introduce an afs_get_read() helper to get a reference on an afs_read
object.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2019-11-21 09:12:17 +00:00
parent 0b9c0174d6
commit d4438a2529
3 changed files with 9 additions and 6 deletions
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6
fs/afs/fsclient.c
View File

@ -490,7 +490,7 @@ static int afs_fs_fetch_data64(struct afs_fs_cursor *fc,
call->key = fc->key; call->key = fc->key;
call->out_scb = scb; call->out_scb = scb;
call->out_volsync = NULL; call->out_volsync = NULL;
call->read_request = req; call->read_request = afs_get_read(req);
/* marshall the parameters */ /* marshall the parameters */
bp = call->request; bp = call->request;
@ -503,7 +503,6 @@ static int afs_fs_fetch_data64(struct afs_fs_cursor *fc,
bp[6] = 0; bp[6] = 0;
bp[7] = htonl(lower_32_bits(req->len)); bp[7] = htonl(lower_32_bits(req->len));
refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi); afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid); trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc); afs_set_fc_call(call, fc);
@ -540,7 +539,7 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc,
call->key = fc->key; call->key = fc->key;
call->out_scb = scb; call->out_scb = scb;
call->out_volsync = NULL; call->out_volsync = NULL;
call->read_request = req; call->read_request = afs_get_read(req);
/* marshall the parameters */ /* marshall the parameters */
bp = call->request; bp = call->request;
@ -551,7 +550,6 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc,
bp[4] = htonl(lower_32_bits(req->pos)); bp[4] = htonl(lower_32_bits(req->pos));
bp[5] = htonl(lower_32_bits(req->len)); bp[5] = htonl(lower_32_bits(req->len));
refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi); afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid); trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc); afs_set_fc_call(call, fc);

6
fs/afs/internal.h
View File

@ -934,6 +934,12 @@ extern int afs_fetch_data(struct afs_vnode *, struct key *, struct afs_read *);
extern int afs_page_filler(void *, struct page *); extern int afs_page_filler(void *, struct page *);
extern void afs_put_read(struct afs_read *); extern void afs_put_read(struct afs_read *);
static inline struct afs_read *afs_get_read(struct afs_read *req)
{
refcount_inc(&req->usage);
return req;
}
/* /*
* flock.c * flock.c
*/ */

3
fs/afs/yfsclient.c
View File

@ -605,7 +605,7 @@ int yfs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_status_cb *scb,
call->key = fc->key; call->key = fc->key;
call->out_scb = scb; call->out_scb = scb;
call->out_volsync = NULL; call->out_volsync = NULL;
call->read_request = req; call->read_request = afs_get_read(req);
/* marshall the parameters */ /* marshall the parameters */
bp = call->request; bp = call->request;
@ -616,7 +616,6 @@ int yfs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_status_cb *scb,
bp = xdr_encode_u64(bp, req->len); bp = xdr_encode_u64(bp, req->len);
yfs_check_req(call, bp); yfs_check_req(call, bp);
refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi); afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid); trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc); afs_set_fc_call(call, fc);