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nfs: move nfs_wait_on_request to write.c

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nfs_wait_on_request is now only used in write.c.  Move it there
and mark it static.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Christoph Hellwig 2024-07-01 07:26:53 +02:00 committed by Anna Schumaker
parent 25edbcac6e
commit f1b7c7552c
3 changed files with 17 additions and 20 deletions
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19
fs/nfs/pagelist.c
View File

@ -598,25 +598,6 @@ void nfs_release_request(struct nfs_page *req)
}
EXPORT_SYMBOL_GPL(nfs_release_request);
/**
* nfs_wait_on_request - Wait for a request to complete.
* @req: request to wait upon.
*
* Interruptible by fatal signals only.
* The user is responsible for holding a count on the request.
*/
int
nfs_wait_on_request(struct nfs_page *req)
{
if (!test_bit(PG_BUSY, &req->wb_flags))
return 0;
set_bit(PG_CONTENDED2, &req->wb_flags);
smp_mb__after_atomic();
return wait_on_bit_io(&req->wb_flags, PG_BUSY,
TASK_UNINTERRUPTIBLE);
}
EXPORT_SYMBOL_GPL(nfs_wait_on_request);
/*
* nfs_generic_pg_test - determine if requests can be coalesced
* @desc: pointer to descriptor

17
fs/nfs/write.c
View File

@ -478,6 +478,23 @@ void nfs_join_page_group(struct nfs_page *head, struct nfs_commit_info *cinfo,
nfs_destroy_unlinked_subrequests(destroy_list, head, inode);
}
/**
* nfs_wait_on_request - Wait for a request to complete.
* @req: request to wait upon.
*
* Interruptible by fatal signals only.
* The user is responsible for holding a count on the request.
*/
static int nfs_wait_on_request(struct nfs_page *req)
{
if (!test_bit(PG_BUSY, &req->wb_flags))
return 0;
set_bit(PG_CONTENDED2, &req->wb_flags);
smp_mb__after_atomic();
return wait_on_bit_io(&req->wb_flags, PG_BUSY,
TASK_UNINTERRUPTIBLE);
}
/*
* nfs_unroll_locks - unlock all newly locked reqs and wait on @req
* @head: head request of page group, must be holding head lock

1
include/linux/nfs_page.h
View File

@ -152,7 +152,6 @@ extern void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *, pgoff_t);
extern size_t nfs_generic_pg_test(struct nfs_pageio_descriptor *desc,
struct nfs_page *prev,
struct nfs_page *req);
extern int nfs_wait_on_request(struct nfs_page *);
extern void nfs_unlock_request(struct nfs_page *req);
extern void nfs_unlock_and_release_request(struct nfs_page *);
extern void nfs_join_page_group(struct nfs_page *head,