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| author | Christoph Hellwig <hch@infradead.org> | 2010-10-10 05:36:21 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-10-25 21:26:12 -0400 |
| commit | be148247cfbe2422f5709e77d9c3e10b8a6394da (patch) | |
| tree | f04605bb5ea21cefd455b6fd81c51d8bb02c1521 /fs/dcache.c | |
| parent | 85fe4025c616a7c0ed07bc2fc8c5371b07f3888c (diff) | |
| download | linux-3.10-be148247cfbe2422f5709e77d9c3e10b8a6394da.tar.gz linux-3.10-be148247cfbe2422f5709e77d9c3e10b8a6394da.tar.bz2 linux-3.10-be148247cfbe2422f5709e77d9c3e10b8a6394da.zip | |
fs: take dcache_lock inside __d_path
All callers take dcache_lock just around the call to __d_path, so
take the lock into it in preparation of getting rid of dcache_lock.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 83293be4814..54f93f5e6b0 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1994,7 +1994,7 @@ global_root: * Returns a pointer into the buffer or an error code if the * path was too long. * - * "buflen" should be positive. Caller holds the dcache_lock. + * "buflen" should be positive. * * If path is not reachable from the supplied root, then the value of * root is changed (without modifying refcounts). @@ -2006,10 +2006,12 @@ char *__d_path(const struct path *path, struct path *root, int error; prepend(&res, &buflen, "\0", 1); + spin_lock(&dcache_lock); error = prepend_path(path, root, &res, &buflen); + spin_unlock(&dcache_lock); + if (error) return ERR_PTR(error); - return res; } |