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authorDavid Howells <dhowells@redhat.com>2008-11-14 10:38:48 +1100
committerJames Morris <jmorris@namei.org>2008-11-14 10:38:48 +1100
commit97b7702cd1bdb8e89bde6c70aa983e7b82a52ec6 (patch)
tree81d1b384b04fbe679db668535be4d47be35634ba
parenta001e5b558f25eb1e588522d73ac949b643b7a37 (diff)
downloadlinux-2.6.38-lt-ux500-97b7702cd1bdb8e89bde6c70aa983e7b82a52ec6.tar.gz
CRED: Wrap task credential accesses in the Coda filesystem
Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds. Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id(). Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Jan Harkes <jaharkes@cs.cmu.edu> Cc: codalist@coda.cs.cmu.edu Signed-off-by: James Morris <jmorris@namei.org>
-rw-r--r--fs/coda/cache.c6
-rw-r--r--fs/coda/upcall.c2
2 files changed, 4 insertions, 4 deletions
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 8a2370341c7..a5bf5771a22 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -32,8 +32,8 @@ void coda_cache_enter(struct inode *inode, int mask)
struct coda_inode_info *cii = ITOC(inode);
cii->c_cached_epoch = atomic_read(&permission_epoch);
- if (cii->c_uid != current->fsuid) {
- cii->c_uid = current->fsuid;
+ if (cii->c_uid != current_fsuid()) {
+ cii->c_uid = current_fsuid();
cii->c_cached_perm = mask;
} else
cii->c_cached_perm |= mask;
@@ -60,7 +60,7 @@ int coda_cache_check(struct inode *inode, int mask)
int hit;
hit = (mask & cii->c_cached_perm) == mask &&
- cii->c_uid == current->fsuid &&
+ cii->c_uid == current_fsuid() &&
cii->c_cached_epoch == atomic_read(&permission_epoch);
return hit;
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index ce432bca95d..c274d949179 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -52,7 +52,7 @@ static void *alloc_upcall(int opcode, int size)
inp->ih.opcode = opcode;
inp->ih.pid = current->pid;
inp->ih.pgid = task_pgrp_nr(current);
- inp->ih.uid = current->fsuid;
+ inp->ih.uid = current_fsuid();
return (void*)inp;
}