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usermodehelper: Tidy up waiting

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Rather than using a tri-state integer for the wait flag in
call_usermodehelper_exec, define a proper enum, and use that.  I've
preserved the integer values so that any callers I've missed should
still work OK.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: David Howells <dhowells@redhat.com>
This commit is contained in:
Jeremy Fitzhardinge 2007-07-17 18:37:03 -07:00 • committed by Jeremy Fitzhardinge
parent 10a0a8d4e3
commit 86313c488a
14 changed files with 40 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

12
include/linux/kmod.h
View file

@ -51,15 +51,21 @@ int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info,
void call_usermodehelper_setcleanup(struct subprocess_info *info,
void (*cleanup)(char **argv, char **envp));
enum umh_wait {
UMH_NO_WAIT = -1, /* don't wait at all */
UMH_WAIT_EXEC = 0, /* wait for the exec, but not the process */
UMH_WAIT_PROC = 1, /* wait for the process to complete */
};
/* Actually execute the sub-process */
int call_usermodehelper_exec(struct subprocess_info *info, int wait);
int call_usermodehelper_exec(struct subprocess_info *info, enum umh_wait wait);
/* Free the subprocess_info. This is only needed if you're not going
to call call_usermodehelper_exec */
void call_usermodehelper_freeinfo(struct subprocess_info *info);
static inline int
call_usermodehelper(char *path, char **argv, char **envp, int wait)
call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait)
{
struct subprocess_info *info;
@ -71,7 +77,7 @@ call_usermodehelper(char *path, char **argv, char **envp, int wait)
static inline int
call_usermodehelper_keys(char *path, char **argv, char **envp,
struct key *session_keyring, int wait)
struct key *session_keyring, enum umh_wait wait)
{
struct subprocess_info *info;