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authorTrond Myklebust <trond.myklebust@hammerspace.com>2020-03-30 11:12:16 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2020-04-01 13:37:56 -0400
commita62f8e3bd836bf1abde1648a45e14afd050dbd23 (patch)
tree2c93e5b4f2768ac87a4fac37e453997096177d4f /include/linux/nfs_page.h
parent377840ee48cde0700678ef14141106bbd13e00b5 (diff)
NFS: Clean up nfs_lock_and_join_requests()
Clean up nfs_lock_and_join_requests() to simplify the calculation of the range covered by the page group, taking into account the presence of mirrors. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'include/linux/nfs_page.h')
-rw-r--r--include/linux/nfs_page.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 7e9419d74b86..dd205bc6bc58 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -139,6 +139,7 @@ extern size_t nfs_generic_pg_test(struct nfs_pageio_descriptor *desc,
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 int nfs_page_group_lock_subrequests(struct nfs_page *head);
extern int nfs_page_group_lock(struct nfs_page *);
extern void nfs_page_group_unlock(struct nfs_page *);
extern bool nfs_page_group_sync_on_bit(struct nfs_page *, unsigned int);