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NFS: Remove pnfs_generic_transfer_commit_list()

Browse source 
It's pretty much a duplicate of nfs_scan_commit_list() that also
clears the PG_COMMIT_TO_DS flag.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2017-09-09 12:40:38 -04:00
parent 137da553db
commit 5d2a9d9dac
2 changed files with 4 additions and 41 deletions
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43
fs/nfs/pnfs_nfs.c
View file

@ -87,44 +87,6 @@ out:
}
EXPORT_SYMBOL_GPL(pnfs_generic_clear_request_commit);
static int
pnfs_generic_transfer_commit_list(struct list_head *src, struct list_head *dst,
struct nfs_commit_info *cinfo, int max)
{
struct nfs_page *req, *tmp;
int ret = 0;
restart:
list_for_each_entry_safe(req, tmp, src, wb_list) {
kref_get(&req->wb_kref);
if (!nfs_lock_request(req)) {
int status;
/* Prevent deadlock with nfs_lock_and_join_requests */
if (!list_empty(dst)) {
nfs_release_request(req);
continue;
}
/* Ensure we make progress to prevent livelock */
mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
status = nfs_wait_on_request(req);
nfs_release_request(req);
mutex_lock(&NFS_I(cinfo->inode)->commit_mutex);
if (status < 0)
break;
goto restart;
}
nfs_request_remove_commit_list(req, cinfo);
clear_bit(PG_COMMIT_TO_DS, &req->wb_flags);
nfs_list_add_request(req, dst);
ret++;
if ((ret == max) && !cinfo->dreq)
break;
cond_resched();
}
return ret;
}
static int
pnfs_generic_scan_ds_commit_list(struct pnfs_commit_bucket *bucket,
struct nfs_commit_info *cinfo,
@ -135,7 +97,7 @@ pnfs_generic_scan_ds_commit_list(struct pnfs_commit_bucket *bucket,
int ret;
lockdep_assert_held(&NFS_I(cinfo->inode)->commit_mutex);
ret = pnfs_generic_transfer_commit_list(src, dst, cinfo, max);
ret = nfs_scan_commit_list(src, dst, cinfo, max);
if (ret) {
cinfo->ds->nwritten -= ret;
cinfo->ds->ncommitting += ret;
@ -180,8 +142,7 @@ void pnfs_generic_recover_commit_reqs(struct list_head *dst,
lockdep_assert_held(&NFS_I(cinfo->inode)->commit_mutex);
restart:
for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
nwritten = pnfs_generic_transfer_commit_list(&b->written,
dst, cinfo, 0);
nwritten = nfs_scan_commit_list(&b->written, dst, cinfo, 0);
if (!nwritten)
continue;
cinfo->ds->nwritten -= nwritten;

2
fs/nfs/write.c
View file

@ -1052,6 +1052,7 @@ restart:
goto restart;
}
nfs_request_remove_commit_list(req, cinfo);
clear_bit(PG_COMMIT_TO_DS, &req->wb_flags);
nfs_list_add_request(req, dst);
ret++;
if ((ret == max) && !cinfo->dreq)
@ -1060,6 +1061,7 @@ restart:
}
return ret;
}
EXPORT_SYMBOL_GPL(nfs_scan_commit_list);
/*
* nfs_scan_commit - Scan an inode for commit requests