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-rw-r--r--drivers/staging/lustre/lustre/llite/file.c70
-rw-r--r--drivers/staging/lustre/lustre/llite/llite_internal.h15
-rw-r--r--drivers/staging/lustre/lustre/llite/vvp_internal.h14
-rw-r--r--drivers/staging/lustre/lustre/llite/vvp_io.c45
4 files changed, 21 insertions, 123 deletions
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 57281b9e31ff..2567b09f4cfe 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -1153,36 +1153,21 @@ restart:
int write_mutex_locked = 0;
vio->vui_fd = LUSTRE_FPRIVATE(file);
- vio->vui_io_subtype = args->via_io_subtype;
-
- switch (vio->vui_io_subtype) {
- case IO_NORMAL:
- vio->vui_iter = args->u.normal.via_iter;
- vio->vui_iocb = args->u.normal.via_iocb;
- if ((iot == CIT_WRITE) &&
- !(vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
- if (mutex_lock_interruptible(&lli->
- lli_write_mutex)) {
- result = -ERESTARTSYS;
- goto out;
- }
- write_mutex_locked = 1;
+ vio->vui_iter = args->u.normal.via_iter;
+ vio->vui_iocb = args->u.normal.via_iocb;
+ if ((iot == CIT_WRITE) &&
+ !(vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
+ if (mutex_lock_interruptible(&lli->lli_write_mutex)) {
+ result = -ERESTARTSYS;
+ goto out;
}
- down_read(&lli->lli_trunc_sem);
- break;
- case IO_SPLICE:
- vio->u.splice.vui_pipe = args->u.splice.via_pipe;
- vio->u.splice.vui_flags = args->u.splice.via_flags;
- break;
- default:
- CERROR("Unknown IO type - %u\n", vio->vui_io_subtype);
- LBUG();
+ write_mutex_locked = 1;
}
+ down_read(&lli->lli_trunc_sem);
ll_cl_add(file, env, io);
result = cl_io_loop(env, io);
ll_cl_remove(file, env);
- if (args->via_io_subtype == IO_NORMAL)
- up_read(&lli->lli_trunc_sem);
+ up_read(&lli->lli_trunc_sem);
if (write_mutex_locked)
mutex_unlock(&lli->lli_write_mutex);
} else {
@@ -1237,7 +1222,7 @@ static ssize_t ll_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
if (IS_ERR(env))
return PTR_ERR(env);
- args = ll_env_args(env, IO_NORMAL);
+ args = ll_env_args(env);
args->u.normal.via_iter = to;
args->u.normal.via_iocb = iocb;
@@ -1261,7 +1246,7 @@ static ssize_t ll_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
if (IS_ERR(env))
return PTR_ERR(env);
- args = ll_env_args(env, IO_NORMAL);
+ args = ll_env_args(env);
args->u.normal.via_iter = from;
args->u.normal.via_iocb = iocb;
@@ -1271,31 +1256,6 @@ static ssize_t ll_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
return result;
}
-/*
- * Send file content (through pagecache) somewhere with helper
- */
-static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t count,
- unsigned int flags)
-{
- struct lu_env *env;
- struct vvp_io_args *args;
- ssize_t result;
- int refcheck;
-
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- return PTR_ERR(env);
-
- args = ll_env_args(env, IO_SPLICE);
- args->u.splice.via_pipe = pipe;
- args->u.splice.via_flags = flags;
-
- result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
- cl_env_put(env, &refcheck);
- return result;
-}
-
static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, u32 ost_idx)
{
struct obd_export *exp = ll_i2dtexp(inode);
@@ -3173,7 +3133,7 @@ struct file_operations ll_file_operations = {
.release = ll_file_release,
.mmap = ll_file_mmap,
.llseek = ll_file_seek,
- .splice_read = ll_file_splice_read,
+ .splice_read = generic_file_splice_read,
.fsync = ll_fsync,
.flush = ll_flush
};
@@ -3186,7 +3146,7 @@ struct file_operations ll_file_operations_flock = {
.release = ll_file_release,
.mmap = ll_file_mmap,
.llseek = ll_file_seek,
- .splice_read = ll_file_splice_read,
+ .splice_read = generic_file_splice_read,
.fsync = ll_fsync,
.flush = ll_flush,
.flock = ll_file_flock,
@@ -3202,7 +3162,7 @@ struct file_operations ll_file_operations_noflock = {
.release = ll_file_release,
.mmap = ll_file_mmap,
.llseek = ll_file_seek,
- .splice_read = ll_file_splice_read,
+ .splice_read = generic_file_splice_read,
.fsync = ll_fsync,
.flush = ll_flush,
.flock = ll_file_noflock,
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 4d6d589a1677..0e738c8ab484 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -800,17 +800,11 @@ void vvp_write_complete(struct vvp_object *club, struct vvp_page *page);
*/
struct vvp_io_args {
/** normal/splice */
- enum vvp_io_subtype via_io_subtype;
-
union {
struct {
struct kiocb *via_iocb;
struct iov_iter *via_iter;
} normal;
- struct {
- struct pipe_inode_info *via_pipe;
- unsigned int via_flags;
- } splice;
} u;
};
@@ -838,14 +832,9 @@ static inline struct ll_thread_info *ll_env_info(const struct lu_env *env)
return lti;
}
-static inline struct vvp_io_args *ll_env_args(const struct lu_env *env,
- enum vvp_io_subtype type)
+static inline struct vvp_io_args *ll_env_args(const struct lu_env *env)
{
- struct vvp_io_args *via = &ll_env_info(env)->lti_args;
-
- via->via_io_subtype = type;
-
- return via;
+ return &ll_env_info(env)->lti_args;
}
void ll_queue_done_writing(struct inode *inode, unsigned long flags);
diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h
index 79fc428461ed..2fa49cca701f 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_internal.h
+++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h
@@ -49,14 +49,6 @@ struct obd_device;
struct obd_export;
struct page;
-/* specific architecture can implement only part of this list */
-enum vvp_io_subtype {
- /** normal IO */
- IO_NORMAL,
- /** io started from splice_{read|write} */
- IO_SPLICE
-};
-
/**
* IO state private to IO state private to VVP layer.
*/
@@ -99,10 +91,6 @@ struct vvp_io {
bool ft_flags_valid;
} fault;
struct {
- struct pipe_inode_info *vui_pipe;
- unsigned int vui_flags;
- } splice;
- struct {
struct cl_page_list vui_queue;
unsigned long vui_written;
int vui_from;
@@ -110,8 +98,6 @@ struct vvp_io {
} write;
} u;
- enum vvp_io_subtype vui_io_subtype;
-
/**
* Layout version when this IO is initialized
*/
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index 94916dcc6caa..48646009290d 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -55,18 +55,6 @@ static struct vvp_io *cl2vvp_io(const struct lu_env *env,
}
/**
- * True, if \a io is a normal io, False for splice_{read,write}
- */
-static int cl_is_normalio(const struct lu_env *env, const struct cl_io *io)
-{
- struct vvp_io *vio = vvp_env_io(env);
-
- LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
- return vio->vui_io_subtype == IO_NORMAL;
-}
-
-/**
* For swapping layout. The file's layout may have changed.
* To avoid populating pages to a wrong stripe, we have to verify the
* correctness of layout. It works because swapping layout processes
@@ -391,9 +379,6 @@ static int vvp_mmap_locks(const struct lu_env *env,
LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
- if (!cl_is_normalio(env, io))
- return 0;
-
if (!vio->vui_iter) /* nfs or loop back device write */
return 0;
@@ -462,15 +447,10 @@ static void vvp_io_advance(const struct lu_env *env,
const struct cl_io_slice *ios,
size_t nob)
{
- struct vvp_io *vio = cl2vvp_io(env, ios);
- struct cl_io *io = ios->cis_io;
struct cl_object *obj = ios->cis_io->ci_obj;
-
+ struct vvp_io *vio = cl2vvp_io(env, ios);
CLOBINVRNT(env, obj, vvp_object_invariant(obj));
- if (!cl_is_normalio(env, io))
- return;
-
iov_iter_reexpand(vio->vui_iter, vio->vui_tot_count -= nob);
}
@@ -479,7 +459,7 @@ static void vvp_io_update_iov(const struct lu_env *env,
{
size_t size = io->u.ci_rw.crw_count;
- if (!cl_is_normalio(env, io) || !vio->vui_iter)
+ if (!vio->vui_iter)
return;
iov_iter_truncate(vio->vui_iter, size);
@@ -716,25 +696,8 @@ static int vvp_io_read_start(const struct lu_env *env,
/* BUG: 5972 */
file_accessed(file);
- switch (vio->vui_io_subtype) {
- case IO_NORMAL:
- LASSERT(vio->vui_iocb->ki_pos == pos);
- result = generic_file_read_iter(vio->vui_iocb, vio->vui_iter);
- break;
- case IO_SPLICE:
- result = generic_file_splice_read(file, &pos,
- vio->u.splice.vui_pipe, cnt,
- vio->u.splice.vui_flags);
- /* LU-1109: do splice read stripe by stripe otherwise if it
- * may make nfsd stuck if this read occupied all internal pipe
- * buffers.
- */
- io->ci_continue = 0;
- break;
- default:
- CERROR("Wrong IO type %u\n", vio->vui_io_subtype);
- LBUG();
- }
+ LASSERT(vio->vui_iocb->ki_pos == pos);
+ result = generic_file_read_iter(vio->vui_iocb, vio->vui_iter);
out:
if (result >= 0) {
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-06 04:08:38 +0000