diff options
Diffstat (limited to 'meta/recipes-devtools/unfs3/unfs3/rename_fh_cache.patch')
-rw-r--r-- | meta/recipes-devtools/unfs3/unfs3/rename_fh_cache.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/meta/recipes-devtools/unfs3/unfs3/rename_fh_cache.patch b/meta/recipes-devtools/unfs3/unfs3/rename_fh_cache.patch new file mode 100644 index 0000000000..37de8c3ca2 --- /dev/null +++ b/meta/recipes-devtools/unfs3/unfs3/rename_fh_cache.patch | |||
@@ -0,0 +1,64 @@ | |||
1 | From: Jason Wessel <jason.wessel@windriver.com> | ||
2 | Date: Sat, 23 Feb 2013 08:49:08 -0600 | ||
3 | Subject: [PATCH] fh_cache: fix statle nfs handle on rename problem | ||
4 | |||
5 | The following test case fails with modern linunx kernels which cache | ||
6 | the renamed inode. | ||
7 | |||
8 | % mkdir a;mkdir b;mv b a/;ls -l a | ||
9 | ls: a/b: Stale NFS file handle | ||
10 | |||
11 | The issue is that nfserver was not updating the fh_cache with the new | ||
12 | location of the inode, when it moves directories. | ||
13 | |||
14 | Signed-off-by: Jason Wessel <jason.wessel@windriver.com> | ||
15 | |||
16 | Upstream-Status: Pending | ||
17 | |||
18 | --- | ||
19 | fh_cache.c | 12 ++++++++++++ | ||
20 | fh_cache.h | 1 + | ||
21 | nfs.c | 2 ++ | ||
22 | 3 files changed, 15 insertions(+) | ||
23 | |||
24 | --- a/fh_cache.c | ||
25 | +++ b/fh_cache.c | ||
26 | @@ -199,6 +199,18 @@ static char *fh_cache_lookup(uint32 dev, | ||
27 | } | ||
28 | |||
29 | /* | ||
30 | + * update a fh inode cache for an operation like rename | ||
31 | + */ | ||
32 | +void fh_cache_update(nfs_fh3 fh, char *path) | ||
33 | +{ | ||
34 | + unfs3_fh_t *obj = (void *) fh.data.data_val; | ||
35 | + backend_statstruct buf; | ||
36 | + | ||
37 | + if (backend_lstat(path, &buf) != -1) { | ||
38 | + fh_cache_add(obj->dev, buf.st_ino, path); | ||
39 | + } | ||
40 | +} | ||
41 | +/* | ||
42 | * resolve a filename into a path | ||
43 | * cache-using wrapper for fh_decomp_raw | ||
44 | */ | ||
45 | --- a/fh_cache.h | ||
46 | +++ b/fh_cache.h | ||
47 | @@ -19,5 +19,6 @@ unfs3_fh_t fh_comp(const char *path, str | ||
48 | unfs3_fh_t *fh_comp_ptr(const char *path, struct svc_req *rqstp, int need_dir); | ||
49 | |||
50 | char *fh_cache_add(uint32 dev, uint64 ino, const char *path); | ||
51 | +void fh_cache_update(nfs_fh3 fh, char *path); | ||
52 | |||
53 | #endif | ||
54 | --- a/nfs.c | ||
55 | +++ b/nfs.c | ||
56 | @@ -876,6 +876,8 @@ RENAME3res *nfsproc3_rename_3_svc(RENAME | ||
57 | res = backend_rename(from_obj, to_obj); | ||
58 | if (res == -1) | ||
59 | result.status = rename_err(); | ||
60 | + /* Update the fh_cache with moved inode value */ | ||
61 | + fh_cache_update(argp->to.dir, to_obj); | ||
62 | } | ||
63 | } | ||
64 | |||