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Subject[9/9] Lustre VFS patches for 2.6
Lustre needs to differentiate plain opens from opens for exec, in the latter
case it is possible that client will decide that it cannot execute a file
(after succesful open intent completion) e.g. due to wrong permissions and
that may cause server to leak open file reference as close will never be called.

fs/exec.c | 4 ++--
include/linux/fs.h | 1 +
2 files changed, 3 insertions(+), 2 deletions(-)

--- linus-2.6.7-bk-latest/include/linux/fs.h.orig 2004-07-07 12:33:21.246507224 +0300
+++ linus-2.6.7-bk-latest/include/linux/fs.h 2004-07-07 12:33:55.069365368 +0300
@@ -74,6 +74,7 @@ extern int leases_enable, dir_notify_ena

#define FMODE_READ 1
#define FMODE_WRITE 2
+#define FMODE_EXEC 4

#define RW_MASK 1
#define RWA_MASK 2
--- linus-2.6.7-bk-latest/fs/exec.c.orig 2004-07-07 12:33:05.466906088 +0300
+++ linus-2.6.7-bk-latest/fs/exec.c 2004-07-07 12:33:38.127940856 +0300
@@ -122,7 +122,7 @@ asmlinkage long sys_uselib(const char __
int error;

intent_init(&nd.intent.open, IT_OPEN);
- nd.intent.open.flags = FMODE_READ;
+ nd.intent.open.flags = FMODE_READ|FMODE_EXEC;
error = user_path_walk_it(library, &nd);
if (error)
goto out;
@@ -476,7 +476,7 @@ struct file *open_exec(const char *name)
struct file *file;

intent_init(&nd.intent.open, IT_OPEN);
- nd.intent.open.flags = FMODE_READ;
+ nd.intent.open.flags = FMODE_READ|FMODE_EXEC;
err = path_lookup_it(name, LOOKUP_FOLLOW, &nd);
file = ERR_PTR(err);

-
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