| From | Jeff Layton <> | Subject | [PATCH v7 37/49] vfs: make fchmodat retry once on ESTALE errors | Date | Mon, 1 Oct 2012 20:16:46 -0400 |
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Signed-off-by: Jeff Layton <jlayton@redhat.com> --- fs/open.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/open.c b/fs/open.c index a015cb8..232cbfb 100644 --- a/fs/open.c +++ b/fs/open.c @@ -506,12 +506,17 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode { struct path path; int error; + unsigned int try = 0; + int lookup_flags = LOOKUP_FOLLOW; - error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path); - if (!error) { + do { + error = user_path_at(dfd, filename, lookup_flags, &path); + if (error) + break; error = chmod_common(&path, mode); path_put(&path); - } + lookup_flags |= LOOKUP_REVAL; + } while (retry_estale(error, try++)); return error; } -- 1.7.11.4
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