lkml.org 
[lkml]   [2019]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 25/30] nfsd: Use kmemdup rather than duplicating its implementation
Date
kmemdup is introduced to duplicate a region of memory in a neat way.
Rather than kmalloc/kzalloc + memset, which the programmer needs to
write the size twice (sometimes lead to mistakes), kmemdup improves
readability, leads to smaller code and also reduce the chances of mistakes.
Suggestion to use kmemdup rather than using kmalloc/kzalloc + memset.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
fs/nfsd/nfscache.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index da52b594362a..c0226f0281af 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -533,13 +533,12 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
case RC_REPLBUFF:
cachv = &rp->c_replvec;
bufsize = len << 2;
- cachv->iov_base = kmalloc(bufsize, GFP_KERNEL);
+ cachv->iov_base = kmemdup(statp, bufsize, GFP_KERNEL);
if (!cachv->iov_base) {
nfsd_reply_cache_free(b, rp);
return;
}
cachv->iov_len = bufsize;
- memcpy(cachv->iov_base, statp, bufsize);
break;
case RC_NOCACHE:
nfsd_reply_cache_free(b, rp);
--
2.11.0
\
 
 \ /
  Last update: 2019-07-03 15:18    [W:0.174 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site