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cifs: Remove cifs_aio_ctx

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Remove struct cifs_aio_ctx and its associated alloc/release functions as it
is no longer used, the functions being taken over by netfslib.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
David Howells 2024-07-31 11:30:00 +01:00 committed by Steve French
parent 4b96024ef2
commit cd93650798
3 changed files with 0 additions and 80 deletions
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24
fs/smb/client/cifsglob.h
View File

@ -1471,29 +1471,6 @@ struct cifs_io_parms {
struct TCP_Server_Info *server;
};
struct cifs_aio_ctx {
struct kref refcount;
struct list_head list;
struct mutex aio_mutex;
struct completion done;
struct iov_iter iter;
struct kiocb *iocb;
struct cifsFileInfo *cfile;
struct bio_vec *bv;
loff_t pos;
unsigned int nr_pinned_pages;
ssize_t rc;
unsigned int len;
unsigned int total_len;
unsigned int bv_need_unpin; /* If ->bv[] needs unpinning */
bool should_dirty;
/*
* Indicates if this aio_ctx is for direct_io,
* If yes, iter is a copy of the user passed iov_iter
*/
bool direct_io;
};
struct cifs_io_request {
struct netfs_io_request rreq;
struct cifsFileInfo *cfile;
@ -2010,7 +1987,6 @@ require use of the stronger protocol */
* cifsFileInfo->file_info_lock cifsFileInfo->count cifs_new_fileinfo
* ->invalidHandle initiate_cifs_search
* ->oplock_break_cancelled
* cifs_aio_ctx->aio_mutex cifs_aio_ctx cifs_aio_ctx_alloc
****************************************************************************/
#ifdef DECLARE_GLOBALS_HERE

2
fs/smb/client/cifsproto.h
View File

@ -619,8 +619,6 @@ int __cifs_calc_signature(struct smb_rqst *rqst,
struct shash_desc *shash);
enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
enum securityEnum);
struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
void cifs_aio_ctx_release(struct kref *refcount);
int cifs_alloc_hash(const char *name, struct shash_desc **sdesc);
void cifs_free_hash(struct shash_desc **sdesc);

54
fs/smb/client/misc.c
View File

@ -995,60 +995,6 @@ parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
return rc;
}
struct cifs_aio_ctx *
cifs_aio_ctx_alloc(void)
{
struct cifs_aio_ctx *ctx;
/*
* Must use kzalloc to initialize ctx->bv to NULL and ctx->direct_io
* to false so that we know when we have to unreference pages within
* cifs_aio_ctx_release()
*/
ctx = kzalloc(sizeof(struct cifs_aio_ctx), GFP_KERNEL);
if (!ctx)
return NULL;
INIT_LIST_HEAD(&ctx->list);
mutex_init(&ctx->aio_mutex);
init_completion(&ctx->done);
kref_init(&ctx->refcount);
return ctx;
}
void
cifs_aio_ctx_release(struct kref *refcount)
{
struct cifs_aio_ctx *ctx = container_of(refcount,
struct cifs_aio_ctx, refcount);
cifsFileInfo_put(ctx->cfile);
/*
* ctx->bv is only set if setup_aio_ctx_iter() was call successfuly
* which means that iov_iter_extract_pages() was a success and thus
* that we may have references or pins on pages that we need to
* release.
*/
if (ctx->bv) {
if (ctx->should_dirty || ctx->bv_need_unpin) {
unsigned int i;
for (i = 0; i < ctx->nr_pinned_pages; i++) {
struct page *page = ctx->bv[i].bv_page;
if (ctx->should_dirty)
set_page_dirty(page);
if (ctx->bv_need_unpin)
unpin_user_page(page);
}
}
kvfree(ctx->bv);
}
kfree(ctx);
}
/**
* cifs_alloc_hash - allocate hash and hash context together
* @name: The name of the crypto hash algo