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From: Frank van der Linden <fllinden@amazon.com>
To: <bfields@fieldses.org>, <chuck.lever@oracle.com>,
	<linux-nfs@vger.kernel.org>
Cc: Frank van der Linden <fllinden@amazon.com>
Subject: [PATCH 09/14] nfsd: use kvmalloc in svcxdr_tmpalloc
Date: Wed, 11 Mar 2020 19:59:49 +0000	[thread overview]
Message-ID: <20200311195954.27117-10-fllinden@amazon.com> (raw)
In-Reply-To: <20200311195954.27117-1-fllinden@amazon.com>

For user extended attributes, temp allocations larger than one page
might be needed.

Use kvmalloc/kvfree to accommodate these larger allocations, while not
affecting the performance of the smaller ones.

Signed-off-by: Frank van der Linden <fllinden@amazon.com>
---
 fs/nfsd/nfs4xdr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 6e7fc6a9931e..f6322add2992 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -230,7 +230,7 @@ svcxdr_tmpalloc(struct nfsd4_compoundargs *argp, u32 len)
 {
 	struct svcxdr_tmpbuf *tb;
 
-	tb = kmalloc(sizeof(*tb) + len, GFP_KERNEL);
+	tb = kvmalloc(sizeof(*tb) + len, GFP_KERNEL);
 	if (!tb)
 		return NULL;
 	tb->next = argp->to_free;
@@ -4691,7 +4691,7 @@ void nfsd4_release_compoundargs(struct svc_rqst *rqstp)
 	while (args->to_free) {
 		struct svcxdr_tmpbuf *tb = args->to_free;
 		args->to_free = tb->next;
-		kfree(tb);
+		kvfree(tb);
 	}
 }
 
-- 
2.16.6


  parent reply	other threads:[~2020-03-11 20:00 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-11 19:59 [PATCH 00/14] server side user xattr support (RFC 8276) Frank van der Linden
2020-03-11 19:59 ` [PATCH 01/14] nfs,nfsd: NFSv4.2 extended attribute protocol definitions Frank van der Linden
2020-03-11 19:59 ` [PATCH 02/14] xattr: modify vfs_{set,remove}xattr for NFS server use Frank van der Linden
2020-03-12 16:23   ` Chuck Lever
2020-03-13 15:35   ` J. Bruce Fields
2020-03-13 16:07     ` [PATCH 02/14] xattr: modify vfs_{set, remove}xattr " Frank van der Linden
2020-03-13 21:06       ` J. Bruce Fields
2020-03-11 19:59 ` [PATCH 03/14] nfsd: split off the write decode code in to a separate function Frank van der Linden
2020-03-11 19:59 ` [PATCH 04/14] nfsd: make sure the nfsd4_ops array has the right size Frank van der Linden
2020-03-11 19:59 ` [PATCH 05/14] nfsd: add defines for NFSv4.2 extended attribute support Frank van der Linden
2020-03-12 16:23   ` Chuck Lever
2020-03-11 19:59 ` [PATCH 06/14] nfsd: define xattr functions to call in to their vfs counterparts Frank van der Linden
2020-03-12  7:37   ` kbuild test robot
2020-03-12 16:23   ` Chuck Lever
2020-03-12 17:16     ` Frank van der Linden
2020-03-12 17:57       ` Chuck Lever
2020-03-11 19:59 ` [PATCH 07/14] nfsd: take xattr bits in to account for permission checks Frank van der Linden
2020-03-11 19:59 ` [PATCH 08/14] nfsd: add structure definitions for xattr requests / responses Frank van der Linden
2020-03-11 19:59 ` Frank van der Linden [this message]
2020-03-11 19:59 ` [PATCH 10/14] nfsd: implement the xattr procedure functions Frank van der Linden
2020-03-12 10:28   ` kbuild test robot
2020-03-12 16:24   ` Chuck Lever
2020-03-11 19:59 ` [PATCH 11/14] nfsd: add user xattr RPC XDR encoding/decoding logic Frank van der Linden
2020-03-12 13:28   ` kbuild test robot
2020-03-12 16:24   ` Chuck Lever
2020-03-19 22:13     ` Frank van der Linden
2020-03-19 22:15       ` Chuck Lever
2020-03-25 23:44     ` Frank van der Linden
2020-03-26 14:12       ` Chuck Lever
2020-03-12 19:16   ` Chuck Lever
2020-03-20 16:47     ` Frank van der Linden
2020-03-20 17:34       ` Chuck Lever
2020-03-20 17:54         ` J. Bruce Fields
2020-03-20 19:44         ` Frank van der Linden
2020-03-11 19:59 ` [PATCH 12/14] nfsd: add xattr operations to ops array Frank van der Linden
2020-03-11 19:59 ` [PATCH 13/14] xattr: add a function to check if a namespace is supported Frank van der Linden
2020-03-12 16:24   ` Chuck Lever
2020-03-11 19:59 ` [PATCH 14/14] nfsd: add fattr support for user extended attributes Frank van der Linden

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