From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Subject: [PATCH v6 09/13] NFS: Readdirplus can't help lookup for case insensitive filesystems
Date: Mon, 21 Feb 2022 11:08:47 -0500 [thread overview]
Message-ID: <20220221160851.15508-10-trondmy@kernel.org> (raw)
In-Reply-To: <20220221160851.15508-9-trondmy@kernel.org>
From: Trond Myklebust <trond.myklebust@hammerspace.com>
If the filesystem is case insensitive, then readdirplus can't help with
cache misses, since it won't return case folded variants of the filename.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
fs/nfs/dir.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c4d962bca9ef..b1e6c56d7e1a 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -667,6 +667,8 @@ void nfs_readdir_record_entry_cache_miss(struct inode *dir)
static void nfs_lookup_advise_force_readdirplus(struct inode *dir)
{
+ if (nfs_server_capable(dir, NFS_CAP_CASE_INSENSITIVE))
+ return;
nfs_readdir_record_entry_cache_miss(dir);
}
--
2.35.1
next prev parent reply other threads:[~2022-02-21 16:17 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-21 16:08 [PATCH v6 00/13] Readdir improvements trondmy
2022-02-21 16:08 ` [PATCH v6 01/13] NFS: constify nfs_server_capable() and nfs_have_writebacks() trondmy
2022-02-21 16:08 ` [PATCH v6 02/13] NFS: Trace lookup revalidation failure trondmy
2022-02-21 16:08 ` [PATCH v6 03/13] NFS: Adjust the amount of readahead performed by NFS readdir trondmy
2022-02-21 16:08 ` [PATCH v6 04/13] NFS: Simplify nfs_readdir_xdr_to_array() trondmy
2022-02-21 16:08 ` [PATCH v6 05/13] NFS: Improve algorithm for falling back to uncached readdir trondmy
2022-02-21 16:08 ` [PATCH v6 06/13] NFS: Improve heuristic for readdirplus trondmy
2022-02-21 16:08 ` [PATCH v6 07/13] NFS: Don't ask for readdirplus unless it can help nfs_getattr() trondmy
2022-02-21 16:08 ` [PATCH v6 08/13] NFSv4: Ask for a full XDR buffer of readdir goodness trondmy
2022-02-21 16:08 ` trondmy [this message]
2022-02-21 16:08 ` [PATCH v6 10/13] NFS: Don't request readdirplus when revaldation was forced trondmy
2022-02-21 16:08 ` [PATCH v6 11/13] NFS: Add basic readdir tracing trondmy
2022-02-21 16:08 ` [PATCH v6 12/13] NFS: Trace effects of readdirplus on the dcache trondmy
2022-02-21 16:08 ` [PATCH v6 13/13] NFS: Trace effects of the readdirplus heuristic trondmy
2022-02-23 13:40 ` [PATCH v3 1/8] NFS: save the directory's change attribute on pagecache pages Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 2/8] NFSv4: Send GETATTR with READDIR Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 3/8] NFS: Add a struct to track readdir pagecache location Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 4/8] NFS: Keep the readdir pagecache cursor updated Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 5/8] NFS: readdir per-page cache validation Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 6/8] NFS: stash the readdir pagecache cursor on the open directory context Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 7/8] NFS: Support headless readdir pagecache pages Benjamin Coddington
2022-02-23 13:40 ` [PATCH v3 8/8] NFS: Revalidate the directory pagecache on every nfs_readdir() Benjamin Coddington
2022-02-21 16:45 ` [PATCH v6 05/13] NFS: Improve algorithm for falling back to uncached readdir Benjamin Coddington
2022-02-21 19:58 ` Trond Myklebust
2022-02-21 20:22 ` Benjamin Coddington
2022-02-21 20:55 ` Trond Myklebust
2022-02-21 21:10 ` Benjamin Coddington
2022-02-21 23:20 ` Trond Myklebust
2022-02-22 12:50 ` Benjamin Coddington
2022-02-22 20:11 ` Trond Myklebust
2022-02-22 20:21 ` Benjamin Coddington
2022-02-23 12:17 ` Trond Myklebust
2022-02-23 13:34 ` Benjamin Coddington
2022-02-23 21:31 ` Trond Myklebust
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