From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Simmons Date: Mon, 16 Apr 2018 00:15:09 -0400 Subject: [lustre-devel] [PATCH 20/22] staging: lustre: llite: use xattr_handler name for ACLs In-Reply-To: <1523852111-17321-1-git-send-email-jsimmons@infradead.org> References: <1523852111-17321-1-git-send-email-jsimmons@infradead.org> Message-ID: <1523852111-17321-21-git-send-email-jsimmons@infradead.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Greg Kroah-Hartman , devel@driverdev.osuosl.org, Andreas Dilger , Oleg Drokin , NeilBrown Cc: "John L. Hammond" , Linux Kernel Mailing List , Lustre Development List From: "John L. Hammond" If struct xattr_handler has a name member then use it (rather than prefix) for the ACL xattrs. This avoids a bug where ACL operations failed for some kernels. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10785 Reviewed-on: https://review.whamcloud.com/ Reviewed-by: Dmitry Eremin Reviewed-by: James Simmons Signed-off-by: James Simmons --- drivers/staging/lustre/lustre/llite/xattr.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index d08bf1e..e835c8e 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -46,15 +46,16 @@ const struct xattr_handler *get_xattr_type(const char *name) { - int i = 0; + int i; - while (ll_xattr_handlers[i]) { - size_t len = strlen(ll_xattr_handlers[i]->prefix); + for (i = 0; ll_xattr_handlers[i]; i++) { + const char *prefix = xattr_prefix(ll_xattr_handlers[i]); + size_t prefix_len = strlen(prefix); - if (!strncmp(ll_xattr_handlers[i]->prefix, name, len)) + if (!strncmp(prefix, name, prefix_len)) return ll_xattr_handlers[i]; - i++; } + return NULL; } @@ -627,14 +628,14 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size) }; static const struct xattr_handler ll_acl_access_xattr_handler = { - .prefix = XATTR_NAME_POSIX_ACL_ACCESS, + .name = XATTR_NAME_POSIX_ACL_ACCESS, .flags = XATTR_ACL_ACCESS_T, .get = ll_xattr_get_common, .set = ll_xattr_set_common, }; static const struct xattr_handler ll_acl_default_xattr_handler = { - .prefix = XATTR_NAME_POSIX_ACL_DEFAULT, + .name = XATTR_NAME_POSIX_ACL_DEFAULT, .flags = XATTR_ACL_DEFAULT_T, .get = ll_xattr_get_common, .set = ll_xattr_set_common, -- 1.8.3.1