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| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-11-11 12:53:47 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-11-16 12:03:14 -0500 |
| commit | 04e4bd1c67f941d81bff78a3b6b94194f081b7df (patch) | |
| tree | 7f6cd633219bc19d7a716a0c2af4eaae2b5170ba /fs/nfs/dir.c | |
| parent | 94f58df8e545657f0b2d16eca1ac7a4ec39ed6be (diff) | |
| download | linux-04e4bd1c67f941d81bff78a3b6b94194f081b7df.tar.bz2 | |
nfs: Ignore kmemleak false positive in nfs_readdir_make_qstr
Strings allocated via kmemdup() in nfs_readdir_make_qstr() are
referenced from the nfs_cache_array which is stored in a page cache
page. Kmemleak does not scan such pages and it reports several false
positives. This patch annotates the string->name pointer so that
kmemleak does not consider it a real leak.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Bryan Schumaker <bjschuma@netapp.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index c9196c9cf5a6..662df2a5fad5 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -34,6 +34,7 @@ #include <linux/mount.h> #include <linux/sched.h> #include <linux/vmalloc.h> +#include <linux/kmemleak.h> #include "delegation.h" #include "iostat.h" @@ -238,6 +239,11 @@ int nfs_readdir_make_qstr(struct qstr *string, const char *name, unsigned int le string->name = kmemdup(name, len, GFP_KERNEL); if (string->name == NULL) return -ENOMEM; + /* + * Avoid a kmemleak false positive. The pointer to the name is stored + * in a page cache page which kmemleak does not scan. + */ + kmemleak_not_leak(string->name); string->hash = full_name_hash(name, len); return 0; } |