[PATCH v2 04/19] netfs: Finish off rename of netfs_read_request to netfs_io_request
David Howells
dhowells at redhat.com
Tue Mar 8 15:26:01 PST 2022
Adjust helper function names and comments after mass rename of
struct netfs_read_*request to struct netfs_io_*request.
Changes
=======
ver #2)
- Make the changes in the docs also.
Signed-off-by: David Howells <dhowells at redhat.com>
cc: linux-cachefs at redhat.com
Link: https://lore.kernel.org/r/164622992433.3564931.6684311087845150271.stgit@warthog.procyon.org.uk/ # v1
---
Documentation/filesystems/netfs_library.rst | 4 +
fs/9p/vfs_addr.c | 6 +-
fs/afs/file.c | 4 +
fs/cachefiles/io.c | 4 +
fs/ceph/addr.c | 6 +-
fs/netfs/read_helper.c | 83 ++++++++++++++-------------
include/linux/netfs.h | 22 ++++---
7 files changed, 65 insertions(+), 64 deletions(-)
diff --git a/Documentation/filesystems/netfs_library.rst b/Documentation/filesystems/netfs_library.rst
index a997e2d4321d..4eb7e7b7b0fc 100644
--- a/Documentation/filesystems/netfs_library.rst
+++ b/Documentation/filesystems/netfs_library.rst
@@ -250,7 +250,7 @@ through which it can issue requests and negotiate::
int (*begin_cache_operation)(struct netfs_io_request *rreq);
void (*expand_readahead)(struct netfs_io_request *rreq);
bool (*clamp_length)(struct netfs_io_subrequest *subreq);
- void (*issue_op)(struct netfs_io_subrequest *subreq);
+ void (*issue_read)(struct netfs_io_subrequest *subreq);
bool (*is_still_valid)(struct netfs_io_request *rreq);
int (*check_write_begin)(struct file *file, loff_t pos, unsigned len,
struct folio *folio, void **_fsdata);
@@ -305,7 +305,7 @@ The operations are as follows:
This should return 0 on success and an error code on error.
- * ``issue_op()``
+ * ``issue_read()``
[Required] The helpers use this to dispatch a subrequest to the server for
reading. In the subrequest, ->start, ->len and ->transferred indicate what
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 7b79fabe7593..fdc1033a1546 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -28,10 +28,10 @@
#include "fid.h"
/**
- * v9fs_req_issue_op - Issue a read from 9P
+ * v9fs_issue_read - Issue a read from 9P
* @subreq: The read to make
*/
-static void v9fs_req_issue_op(struct netfs_io_subrequest *subreq)
+static void v9fs_issue_read(struct netfs_io_subrequest *subreq)
{
struct netfs_io_request *rreq = subreq->rreq;
struct p9_fid *fid = rreq->netfs_priv;
@@ -106,7 +106,7 @@ static const struct netfs_request_ops v9fs_req_ops = {
.init_request = v9fs_init_request,
.is_cache_enabled = v9fs_is_cache_enabled,
.begin_cache_operation = v9fs_begin_cache_operation,
- .issue_op = v9fs_req_issue_op,
+ .issue_read = v9fs_issue_read,
.cleanup = v9fs_req_cleanup,
};
diff --git a/fs/afs/file.c b/fs/afs/file.c
index e55761f8858c..b19d635eed12 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -310,7 +310,7 @@ int afs_fetch_data(struct afs_vnode *vnode, struct afs_read *req)
return afs_do_sync_operation(op);
}
-static void afs_req_issue_op(struct netfs_io_subrequest *subreq)
+static void afs_issue_read(struct netfs_io_subrequest *subreq)
{
struct afs_vnode *vnode = AFS_FS_I(subreq->rreq->inode);
struct afs_read *fsreq;
@@ -401,7 +401,7 @@ const struct netfs_request_ops afs_req_ops = {
.is_cache_enabled = afs_is_cache_enabled,
.begin_cache_operation = afs_begin_cache_operation,
.check_write_begin = afs_check_write_begin,
- .issue_op = afs_req_issue_op,
+ .issue_read = afs_issue_read,
.cleanup = afs_priv_cleanup,
};
diff --git a/fs/cachefiles/io.c b/fs/cachefiles/io.c
index 6ac6fdbc70d3..b19f496db9ad 100644
--- a/fs/cachefiles/io.c
+++ b/fs/cachefiles/io.c
@@ -406,7 +406,7 @@ static enum netfs_io_source cachefiles_prepare_read(struct netfs_io_subrequest *
}
if (test_bit(FSCACHE_COOKIE_NO_DATA_TO_READ, &cookie->flags)) {
- __set_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags);
+ __set_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags);
why = cachefiles_trace_read_no_data;
goto out_no_object;
}
@@ -475,7 +475,7 @@ static enum netfs_io_source cachefiles_prepare_read(struct netfs_io_subrequest *
goto out;
download_and_store:
- __set_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags);
+ __set_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags);
out:
cachefiles_end_secure(cache, saved_cred);
out_no_object:
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 9d995f351079..9189257476f8 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -259,7 +259,7 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
size_t len;
__set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
- __clear_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags);
+ __clear_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags);
if (subreq->start >= inode->i_size)
goto out;
@@ -298,7 +298,7 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
return true;
}
-static void ceph_netfs_issue_op(struct netfs_io_subrequest *subreq)
+static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq)
{
struct netfs_io_request *rreq = subreq->rreq;
struct inode *inode = rreq->inode;
@@ -367,7 +367,7 @@ static void ceph_readahead_cleanup(struct address_space *mapping, void *priv)
static const struct netfs_request_ops ceph_netfs_read_ops = {
.is_cache_enabled = ceph_is_cache_enabled,
.begin_cache_operation = ceph_begin_cache_operation,
- .issue_op = ceph_netfs_issue_op,
+ .issue_read = ceph_netfs_issue_read,
.expand_readahead = ceph_netfs_expand_readahead,
.clamp_length = ceph_netfs_clamp_length,
.check_write_begin = ceph_netfs_check_write_begin,
diff --git a/fs/netfs/read_helper.c b/fs/netfs/read_helper.c
index 50035d93f1dc..26d54055b17e 100644
--- a/fs/netfs/read_helper.c
+++ b/fs/netfs/read_helper.c
@@ -37,7 +37,7 @@ static void netfs_put_subrequest(struct netfs_io_subrequest *subreq,
__netfs_put_subrequest(subreq, was_async);
}
-static struct netfs_io_request *netfs_alloc_read_request(
+static struct netfs_io_request *netfs_alloc_request(
const struct netfs_request_ops *ops, void *netfs_priv,
struct file *file)
{
@@ -63,13 +63,12 @@ static struct netfs_io_request *netfs_alloc_read_request(
return rreq;
}
-static void netfs_get_read_request(struct netfs_io_request *rreq)
+static void netfs_get_request(struct netfs_io_request *rreq)
{
refcount_inc(&rreq->usage);
}
-static void netfs_rreq_clear_subreqs(struct netfs_io_request *rreq,
- bool was_async)
+static void netfs_clear_subrequests(struct netfs_io_request *rreq, bool was_async)
{
struct netfs_io_subrequest *subreq;
@@ -81,11 +80,11 @@ static void netfs_rreq_clear_subreqs(struct netfs_io_request *rreq,
}
}
-static void netfs_free_read_request(struct work_struct *work)
+static void netfs_free_request(struct work_struct *work)
{
struct netfs_io_request *rreq =
container_of(work, struct netfs_io_request, work);
- netfs_rreq_clear_subreqs(rreq, false);
+ netfs_clear_subrequests(rreq, false);
if (rreq->netfs_priv)
rreq->netfs_ops->cleanup(rreq->mapping, rreq->netfs_priv);
trace_netfs_rreq(rreq, netfs_rreq_trace_free);
@@ -95,15 +94,15 @@ static void netfs_free_read_request(struct work_struct *work)
netfs_stat_d(&netfs_n_rh_rreq);
}
-static void netfs_put_read_request(struct netfs_io_request *rreq, bool was_async)
+static void netfs_put_request(struct netfs_io_request *rreq, bool was_async)
{
if (refcount_dec_and_test(&rreq->usage)) {
if (was_async) {
- rreq->work.func = netfs_free_read_request;
+ rreq->work.func = netfs_free_request;
if (!queue_work(system_unbound_wq, &rreq->work))
BUG();
} else {
- netfs_free_read_request(&rreq->work);
+ netfs_free_request(&rreq->work);
}
}
}
@@ -121,14 +120,14 @@ static struct netfs_io_subrequest *netfs_alloc_subrequest(
INIT_LIST_HEAD(&subreq->rreq_link);
refcount_set(&subreq->usage, 2);
subreq->rreq = rreq;
- netfs_get_read_request(rreq);
+ netfs_get_request(rreq);
netfs_stat(&netfs_n_rh_sreq);
}
return subreq;
}
-static void netfs_get_read_subrequest(struct netfs_io_subrequest *subreq)
+static void netfs_get_subrequest(struct netfs_io_subrequest *subreq)
{
refcount_inc(&subreq->usage);
}
@@ -141,7 +140,7 @@ static void __netfs_put_subrequest(struct netfs_io_subrequest *subreq,
trace_netfs_sreq(subreq, netfs_sreq_trace_free);
kfree(subreq);
netfs_stat_d(&netfs_n_rh_sreq);
- netfs_put_read_request(rreq, was_async);
+ netfs_put_request(rreq, was_async);
}
/*
@@ -216,7 +215,7 @@ static void netfs_read_from_server(struct netfs_io_request *rreq,
struct netfs_io_subrequest *subreq)
{
netfs_stat(&netfs_n_rh_download);
- rreq->netfs_ops->issue_op(subreq);
+ rreq->netfs_ops->issue_read(subreq);
}
/*
@@ -225,8 +224,8 @@ static void netfs_read_from_server(struct netfs_io_request *rreq,
static void netfs_rreq_completed(struct netfs_io_request *rreq, bool was_async)
{
trace_netfs_rreq(rreq, netfs_rreq_trace_done);
- netfs_rreq_clear_subreqs(rreq, was_async);
- netfs_put_read_request(rreq, was_async);
+ netfs_clear_subrequests(rreq, was_async);
+ netfs_put_request(rreq, was_async);
}
/*
@@ -306,7 +305,7 @@ static void netfs_rreq_do_write_to_cache(struct netfs_io_request *rreq)
atomic_inc(&rreq->nr_copy_ops);
list_for_each_entry_safe(subreq, p, &rreq->subrequests, rreq_link) {
- if (!test_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags)) {
+ if (!test_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags)) {
list_del_init(&subreq->rreq_link);
netfs_put_subrequest(subreq, false);
}
@@ -336,7 +335,7 @@ static void netfs_rreq_do_write_to_cache(struct netfs_io_request *rreq)
atomic_inc(&rreq->nr_copy_ops);
netfs_stat(&netfs_n_rh_write);
- netfs_get_read_subrequest(subreq);
+ netfs_get_subrequest(subreq);
trace_netfs_sreq(subreq, netfs_sreq_trace_write);
cres->ops->write(cres, subreq->start, &iter,
netfs_rreq_copy_terminated, subreq);
@@ -378,9 +377,9 @@ static void netfs_rreq_unlock(struct netfs_io_request *rreq)
XA_STATE(xas, &rreq->mapping->i_pages, start_page);
if (test_bit(NETFS_RREQ_FAILED, &rreq->flags)) {
- __clear_bit(NETFS_RREQ_WRITE_TO_CACHE, &rreq->flags);
+ __clear_bit(NETFS_RREQ_COPY_TO_CACHE, &rreq->flags);
list_for_each_entry(subreq, &rreq->subrequests, rreq_link) {
- __clear_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags);
+ __clear_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags);
}
}
@@ -408,7 +407,7 @@ static void netfs_rreq_unlock(struct netfs_io_request *rreq)
pg_failed = true;
break;
}
- if (test_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags))
+ if (test_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags))
folio_start_fscache(folio);
pg_failed |= subreq_failed;
if (pgend < iopos + subreq->len)
@@ -453,13 +452,13 @@ static void netfs_rreq_unlock(struct netfs_io_request *rreq)
static void netfs_rreq_short_read(struct netfs_io_request *rreq,
struct netfs_io_subrequest *subreq)
{
- __clear_bit(NETFS_SREQ_SHORT_READ, &subreq->flags);
+ __clear_bit(NETFS_SREQ_SHORT_IO, &subreq->flags);
__set_bit(NETFS_SREQ_SEEK_DATA_READ, &subreq->flags);
netfs_stat(&netfs_n_rh_short_read);
trace_netfs_sreq(subreq, netfs_sreq_trace_resubmit_short);
- netfs_get_read_subrequest(subreq);
+ netfs_get_subrequest(subreq);
atomic_inc(&rreq->nr_outstanding);
if (subreq->source == NETFS_READ_FROM_CACHE)
netfs_read_from_cache(rreq, subreq, NETFS_READ_HOLE_CLEAR);
@@ -493,10 +492,10 @@ static bool netfs_rreq_perform_resubmissions(struct netfs_io_request *rreq)
subreq->error = 0;
netfs_stat(&netfs_n_rh_download_instead);
trace_netfs_sreq(subreq, netfs_sreq_trace_download_instead);
- netfs_get_read_subrequest(subreq);
+ netfs_get_subrequest(subreq);
atomic_inc(&rreq->nr_outstanding);
netfs_read_from_server(rreq, subreq);
- } else if (test_bit(NETFS_SREQ_SHORT_READ, &subreq->flags)) {
+ } else if (test_bit(NETFS_SREQ_SHORT_IO, &subreq->flags)) {
netfs_rreq_short_read(rreq, subreq);
}
}
@@ -553,7 +552,7 @@ static void netfs_rreq_assess(struct netfs_io_request *rreq, bool was_async)
clear_bit_unlock(NETFS_RREQ_IN_PROGRESS, &rreq->flags);
wake_up_bit(&rreq->flags, NETFS_RREQ_IN_PROGRESS);
- if (test_bit(NETFS_RREQ_WRITE_TO_CACHE, &rreq->flags))
+ if (test_bit(NETFS_RREQ_COPY_TO_CACHE, &rreq->flags))
return netfs_rreq_write_to_cache(rreq);
netfs_rreq_completed(rreq, was_async);
@@ -642,8 +641,8 @@ void netfs_subreq_terminated(struct netfs_io_subrequest *subreq,
complete:
__clear_bit(NETFS_SREQ_NO_PROGRESS, &subreq->flags);
- if (test_bit(NETFS_SREQ_WRITE_TO_CACHE, &subreq->flags))
- set_bit(NETFS_RREQ_WRITE_TO_CACHE, &rreq->flags);
+ if (test_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags))
+ set_bit(NETFS_RREQ_COPY_TO_CACHE, &rreq->flags);
out:
trace_netfs_sreq(subreq, netfs_sreq_trace_terminated);
@@ -674,7 +673,7 @@ void netfs_subreq_terminated(struct netfs_io_subrequest *subreq,
__clear_bit(NETFS_SREQ_NO_PROGRESS, &subreq->flags);
}
- __set_bit(NETFS_SREQ_SHORT_READ, &subreq->flags);
+ __set_bit(NETFS_SREQ_SHORT_IO, &subreq->flags);
set_bit(NETFS_RREQ_INCOMPLETE_IO, &rreq->flags);
goto out;
@@ -878,7 +877,7 @@ void netfs_readahead(struct readahead_control *ractl,
if (readahead_count(ractl) == 0)
goto cleanup;
- rreq = netfs_alloc_read_request(ops, netfs_priv, ractl->file);
+ rreq = netfs_alloc_request(ops, netfs_priv, ractl->file);
if (!rreq)
goto cleanup;
rreq->mapping = ractl->mapping;
@@ -916,7 +915,7 @@ void netfs_readahead(struct readahead_control *ractl,
return;
cleanup_free:
- netfs_put_read_request(rreq, false);
+ netfs_put_request(rreq, false);
return;
cleanup:
if (netfs_priv)
@@ -953,7 +952,7 @@ int netfs_readpage(struct file *file,
_enter("%lx", folio_index(folio));
- rreq = netfs_alloc_read_request(ops, netfs_priv, file);
+ rreq = netfs_alloc_request(ops, netfs_priv, file);
if (!rreq) {
if (netfs_priv)
ops->cleanup(folio_file_mapping(folio), netfs_priv);
@@ -975,7 +974,7 @@ int netfs_readpage(struct file *file,
netfs_stat(&netfs_n_rh_readpage);
trace_netfs_read(rreq, rreq->start, rreq->len, netfs_read_trace_readpage);
- netfs_get_read_request(rreq);
+ netfs_get_request(rreq);
atomic_set(&rreq->nr_outstanding, 1);
do {
@@ -989,7 +988,8 @@ int netfs_readpage(struct file *file,
* process.
*/
do {
- wait_var_event(&rreq->nr_outstanding, atomic_read(&rreq->nr_outstanding) == 1);
+ wait_var_event(&rreq->nr_outstanding,
+ atomic_read(&rreq->nr_outstanding) == 1);
netfs_rreq_assess(rreq, false);
} while (test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags));
@@ -999,7 +999,7 @@ int netfs_readpage(struct file *file,
ret = -EIO;
}
out:
- netfs_put_read_request(rreq, false);
+ netfs_put_request(rreq, false);
return ret;
}
EXPORT_SYMBOL(netfs_readpage);
@@ -1122,7 +1122,7 @@ int netfs_write_begin(struct file *file, struct address_space *mapping,
}
ret = -ENOMEM;
- rreq = netfs_alloc_read_request(ops, netfs_priv, file);
+ rreq = netfs_alloc_request(ops, netfs_priv, file);
if (!rreq)
goto error;
rreq->mapping = folio_file_mapping(folio);
@@ -1146,7 +1146,7 @@ int netfs_write_begin(struct file *file, struct address_space *mapping,
*/
ractl._nr_pages = folio_nr_pages(folio);
netfs_rreq_expand(rreq, &ractl);
- netfs_get_read_request(rreq);
+ netfs_get_request(rreq);
/* We hold the folio locks, so we can drop the references */
folio_get(folio);
@@ -1160,12 +1160,13 @@ int netfs_write_begin(struct file *file, struct address_space *mapping,
} while (rreq->submitted < rreq->len);
- /* Keep nr_outstanding incremented so that the ref always belongs to us, and
- * the service code isn't punted off to a random thread pool to
+ /* Keep nr_outstanding incremented so that the ref always belongs to
+ * us, and the service code isn't punted off to a random thread pool to
* process.
*/
for (;;) {
- wait_var_event(&rreq->nr_outstanding, atomic_read(&rreq->nr_outstanding) == 1);
+ wait_var_event(&rreq->nr_outstanding,
+ atomic_read(&rreq->nr_outstanding) == 1);
netfs_rreq_assess(rreq, false);
if (!test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags))
break;
@@ -1177,7 +1178,7 @@ int netfs_write_begin(struct file *file, struct address_space *mapping,
trace_netfs_failure(rreq, NULL, ret, netfs_fail_short_write_begin);
ret = -EIO;
}
- netfs_put_read_request(rreq, false);
+ netfs_put_request(rreq, false);
if (ret < 0)
goto error;
@@ -1193,7 +1194,7 @@ int netfs_write_begin(struct file *file, struct address_space *mapping,
return 0;
error_put:
- netfs_put_read_request(rreq, false);
+ netfs_put_request(rreq, false);
error:
folio_unlock(folio);
folio_put(folio);
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index a2ca91cb7a68..f63de27d6f29 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -131,7 +131,7 @@ struct netfs_cache_resources {
* Descriptor for a single component subrequest.
*/
struct netfs_io_subrequest {
- struct netfs_io_request *rreq; /* Supervising read request */
+ struct netfs_io_request *rreq; /* Supervising I/O request */
struct list_head rreq_link; /* Link in rreq->subrequests */
loff_t start; /* Where to start the I/O */
size_t len; /* Size of the I/O */
@@ -139,29 +139,29 @@ struct netfs_io_subrequest {
refcount_t usage;
short error; /* 0 or error that occurred */
unsigned short debug_index; /* Index in list (for debugging output) */
- enum netfs_io_source source; /* Where to read from */
+ enum netfs_io_source source; /* Where to read from/write to */
unsigned long flags;
-#define NETFS_SREQ_WRITE_TO_CACHE 0 /* Set if should write to cache */
+#define NETFS_SREQ_COPY_TO_CACHE 0 /* Set if should copy the data to the cache */
#define NETFS_SREQ_CLEAR_TAIL 1 /* Set if the rest of the read should be cleared */
-#define NETFS_SREQ_SHORT_READ 2 /* Set if there was a short read from the cache */
+#define NETFS_SREQ_SHORT_IO 2 /* Set if the I/O was short */
#define NETFS_SREQ_SEEK_DATA_READ 3 /* Set if ->read() should SEEK_DATA first */
#define NETFS_SREQ_NO_PROGRESS 4 /* Set if we didn't manage to read any data */
};
/*
- * Descriptor for a read helper request. This is used to make multiple I/O
- * requests on a variety of sources and then stitch the result together.
+ * Descriptor for an I/O helper request. This is used to make multiple I/O
+ * operations to a variety of data stores and then stitch the result together.
*/
struct netfs_io_request {
struct work_struct work;
struct inode *inode; /* The file being accessed */
struct address_space *mapping; /* The mapping being accessed */
struct netfs_cache_resources cache_resources;
- struct list_head subrequests; /* Requests to fetch I/O from disk or net */
+ struct list_head subrequests; /* Contributory I/O operations */
void *netfs_priv; /* Private data for the netfs */
unsigned int debug_id;
- atomic_t nr_outstanding; /* Number of read ops in progress */
- atomic_t nr_copy_ops; /* Number of write ops in progress */
+ atomic_t nr_outstanding; /* Number of ops in progress */
+ atomic_t nr_copy_ops; /* Number of copy-to-cache ops in progress */
size_t submitted; /* Amount submitted for I/O so far */
size_t len; /* Length of the request */
short error; /* 0 or error that occurred */
@@ -171,7 +171,7 @@ struct netfs_io_request {
refcount_t usage;
unsigned long flags;
#define NETFS_RREQ_INCOMPLETE_IO 0 /* Some ioreqs terminated short or with error */
-#define NETFS_RREQ_WRITE_TO_CACHE 1 /* Need to write to the cache */
+#define NETFS_RREQ_COPY_TO_CACHE 1 /* Need to write to the cache */
#define NETFS_RREQ_NO_UNLOCK_FOLIO 2 /* Don't unlock no_unlock_folio on completion */
#define NETFS_RREQ_DONT_UNLOCK_FOLIOS 3 /* Don't unlock the folios on completion */
#define NETFS_RREQ_FAILED 4 /* The request failed */
@@ -188,7 +188,7 @@ struct netfs_request_ops {
int (*begin_cache_operation)(struct netfs_io_request *rreq);
void (*expand_readahead)(struct netfs_io_request *rreq);
bool (*clamp_length)(struct netfs_io_subrequest *subreq);
- void (*issue_op)(struct netfs_io_subrequest *subreq);
+ void (*issue_read)(struct netfs_io_subrequest *subreq);
bool (*is_still_valid)(struct netfs_io_request *rreq);
int (*check_write_begin)(struct file *file, loff_t pos, unsigned len,
struct folio *folio, void **_fsdata);
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