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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2025-09-06 12:48:16 -0400 |
|---|---|---|
| committer |   Anna Schumaker <anna.schumaker@oracle.com> | 2025-09-23 13:29:50 -0400 |
| commit | 902893e3907620153a17fb40834ab6fba9f83fab (patch) | |
| tree | ca2acaa646a8ee86bc1a07a541d56e0ad55911a0 /fs/nfs/write.c | |
| parent | filemap: Add a version of folio_end_writeback that ignores dropbehind (diff) | |
| download | linux-rng-902893e3907620153a17fb40834ab6fba9f83fab.tar.xz linux-rng-902893e3907620153a17fb40834ab6fba9f83fab.zip | |
NFS: Enable use of the RWF_DONTCACHE flag on the NFS client
The NFS client needs to defer dropbehind until after any writes to the
folio have been persisted on the server. Since this may be a 2 step
process, use folio_end_writeback_no_dropbehind() to allow release of the
writeback flag, and then call folio_end_dropbehind() once the COMMIT is
done.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Diffstat (limited to 'fs/nfs/write.c')
| -rw-r--r-- | fs/nfs/write.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 66acc5247435..ad588ed59c09 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -296,7 +296,7 @@ static void nfs_folio_end_writeback(struct folio *folio) { struct nfs_server *nfss = NFS_SERVER(folio->mapping->host); - folio_end_writeback(folio); + folio_end_writeback_no_dropbehind(folio); if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) { nfss->write_congested = 0; @@ -748,6 +748,8 @@ static void nfs_inode_remove_request(struct nfs_page *req) clear_bit(PG_MAPPED, &req->wb_head->wb_flags); } spin_unlock(&mapping->i_private_lock); + + folio_end_dropbehind(folio); } nfs_page_group_unlock(req); |