* [PATCH] exportfs: drop unused is_export parameter from xtab_read() and xtab_write()
@ 2026-05-14 19:40 Jeff Layton
2026-05-14 19:46 ` Jeff Layton
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Layton @ 2026-05-14 19:40 UTC (permalink / raw)
To: Steve Dickson; +Cc: linux-nfs, Jeff Layton
The is_export parameter is always passed as 1. Remove it and simplify
both functions by eliminating the dead is_export == 0 code paths.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
support/export/xtab.c | 39 +++++++++++++--------------------------
1 file changed, 13 insertions(+), 26 deletions(-)
diff --git a/support/export/xtab.c b/support/export/xtab.c
index 282f15bc79cd..0a9660512b26 100644
--- a/support/export/xtab.c
+++ b/support/export/xtab.c
@@ -33,11 +33,8 @@ int v4root_needed;
static void cond_rename(char *newfile, char *oldfile);
static int
-xtab_read(char *xtab, char *lockfn, int is_export)
+xtab_read(char *xtab, char *lockfn)
{
- /* is_export == 0 => reading /proc/fs/nfs/exports - we know these things are exported to kernel
- * is_export == 1 => reading /var/lib/nfs/etab - these things are allowed to be exported
- */
struct exportent *xp;
nfs_export *exp;
int lockid;
@@ -45,11 +42,10 @@ xtab_read(char *xtab, char *lockfn, int is_export)
if ((lockid = xflock(lockfn, "r")) < 0)
return 0;
setexportent(xtab, "r");
- if (is_export == 1)
- v4root_needed = 1;
- while ((xp = getexportent(is_export==0)) != NULL) {
- if (!(exp = export_lookup(xp->e_hostname, xp->e_path, is_export != 1)) &&
- !(exp = export_create(xp, is_export!=1))) {
+ v4root_needed = 1;
+ while ((xp = getexportent(0)) != NULL) {
+ if (!(exp = export_lookup(xp->e_hostname, xp->e_path, 0)) &&
+ !(exp = export_create(xp, 0))) {
if(xp->e_hostname) {
free(xp->e_hostname);
xp->e_hostname=NULL;
@@ -60,17 +56,10 @@ xtab_read(char *xtab, char *lockfn, int is_export)
}
continue;
}
- switch (is_export) {
- case 0:
- exp->m_exported = 1;
- break;
- case 1:
- exp->m_xtabent = 1;
- exp->m_mayexport = 1;
- if ((xp->e_flags & NFSEXP_FSID) && xp->e_fsid == 0)
- v4root_needed = 0;
- break;
- }
+ exp->m_xtabent = 1;
+ exp->m_mayexport = 1;
+ if ((xp->e_flags & NFSEXP_FSID) && xp->e_fsid == 0)
+ v4root_needed = 0;
if(xp->e_hostname) {
free(xp->e_hostname);
xp->e_hostname=NULL;
@@ -90,7 +79,7 @@ xtab_read(char *xtab, char *lockfn, int is_export)
int
xtab_export_read(void)
{
- return xtab_read(etab.statefn, etab.lockfn, 1);
+ return xtab_read(etab.statefn, etab.lockfn);
}
/*
@@ -100,7 +89,7 @@ xtab_export_read(void)
* fix the auth_reload logic as well...
*/
static int
-xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
+xtab_write(char *xtab, char *xtabtmp, char *lockfn)
{
struct exportent xe;
nfs_export *exp;
@@ -114,9 +103,7 @@ xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
for (i = 0; i < MCL_MAXTYPES; i++) {
for (exp = exportlist[i].p_head; exp; exp = exp->m_next) {
- if (is_export && !exp->m_xtabent)
- continue;
- if (!is_export && ! exp->m_exported)
+ if (!exp->m_xtabent)
continue;
/* write out the export entry using the FQDN */
@@ -137,7 +124,7 @@ xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
int
xtab_export_write(void)
{
- return xtab_write(etab.statefn, etab.tmpfn, etab.lockfn, 1);
+ return xtab_write(etab.statefn, etab.tmpfn, etab.lockfn);
}
/*
---
base-commit: cbbf618b31b64198de06a350c4f5744c76e51ecb
change-id: 20260514-exportd-ceb123e6fff2
Best regards,
--
Jeff Layton <jlayton@kernel.org>
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] exportfs: drop unused is_export parameter from xtab_read() and xtab_write()
2026-05-14 19:40 [PATCH] exportfs: drop unused is_export parameter from xtab_read() and xtab_write() Jeff Layton
@ 2026-05-14 19:46 ` Jeff Layton
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Layton @ 2026-05-14 19:46 UTC (permalink / raw)
To: Steve Dickson; +Cc: linux-nfs
Oops, I meant to make this '[nfs-utils PATCH]'. Ahh well, anyway, it's
just a bit of cleanup...
-- Jeff
On Thu, 2026-05-14 at 15:40 -0400, Jeff Layton wrote:
> The is_export parameter is always passed as 1. Remove it and simplify
> both functions by eliminating the dead is_export == 0 code paths.
>
> Signed-off-by: Jeff Layton <jlayton@kernel.org>
> ---
> support/export/xtab.c | 39 +++++++++++++--------------------------
> 1 file changed, 13 insertions(+), 26 deletions(-)
>
> diff --git a/support/export/xtab.c b/support/export/xtab.c
> index 282f15bc79cd..0a9660512b26 100644
> --- a/support/export/xtab.c
> +++ b/support/export/xtab.c
> @@ -33,11 +33,8 @@ int v4root_needed;
> static void cond_rename(char *newfile, char *oldfile);
>
> static int
> -xtab_read(char *xtab, char *lockfn, int is_export)
> +xtab_read(char *xtab, char *lockfn)
> {
> - /* is_export == 0 => reading /proc/fs/nfs/exports - we know these things are exported to kernel
> - * is_export == 1 => reading /var/lib/nfs/etab - these things are allowed to be exported
> - */
> struct exportent *xp;
> nfs_export *exp;
> int lockid;
> @@ -45,11 +42,10 @@ xtab_read(char *xtab, char *lockfn, int is_export)
> if ((lockid = xflock(lockfn, "r")) < 0)
> return 0;
> setexportent(xtab, "r");
> - if (is_export == 1)
> - v4root_needed = 1;
> - while ((xp = getexportent(is_export==0)) != NULL) {
> - if (!(exp = export_lookup(xp->e_hostname, xp->e_path, is_export != 1)) &&
> - !(exp = export_create(xp, is_export!=1))) {
> + v4root_needed = 1;
> + while ((xp = getexportent(0)) != NULL) {
> + if (!(exp = export_lookup(xp->e_hostname, xp->e_path, 0)) &&
> + !(exp = export_create(xp, 0))) {
> if(xp->e_hostname) {
> free(xp->e_hostname);
> xp->e_hostname=NULL;
> @@ -60,17 +56,10 @@ xtab_read(char *xtab, char *lockfn, int is_export)
> }
> continue;
> }
> - switch (is_export) {
> - case 0:
> - exp->m_exported = 1;
> - break;
> - case 1:
> - exp->m_xtabent = 1;
> - exp->m_mayexport = 1;
> - if ((xp->e_flags & NFSEXP_FSID) && xp->e_fsid == 0)
> - v4root_needed = 0;
> - break;
> - }
> + exp->m_xtabent = 1;
> + exp->m_mayexport = 1;
> + if ((xp->e_flags & NFSEXP_FSID) && xp->e_fsid == 0)
> + v4root_needed = 0;
> if(xp->e_hostname) {
> free(xp->e_hostname);
> xp->e_hostname=NULL;
> @@ -90,7 +79,7 @@ xtab_read(char *xtab, char *lockfn, int is_export)
> int
> xtab_export_read(void)
> {
> - return xtab_read(etab.statefn, etab.lockfn, 1);
> + return xtab_read(etab.statefn, etab.lockfn);
> }
>
> /*
> @@ -100,7 +89,7 @@ xtab_export_read(void)
> * fix the auth_reload logic as well...
> */
> static int
> -xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
> +xtab_write(char *xtab, char *xtabtmp, char *lockfn)
> {
> struct exportent xe;
> nfs_export *exp;
> @@ -114,9 +103,7 @@ xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
>
> for (i = 0; i < MCL_MAXTYPES; i++) {
> for (exp = exportlist[i].p_head; exp; exp = exp->m_next) {
> - if (is_export && !exp->m_xtabent)
> - continue;
> - if (!is_export && ! exp->m_exported)
> + if (!exp->m_xtabent)
> continue;
>
> /* write out the export entry using the FQDN */
> @@ -137,7 +124,7 @@ xtab_write(char *xtab, char *xtabtmp, char *lockfn, int is_export)
> int
> xtab_export_write(void)
> {
> - return xtab_write(etab.statefn, etab.tmpfn, etab.lockfn, 1);
> + return xtab_write(etab.statefn, etab.tmpfn, etab.lockfn);
> }
>
> /*
>
> ---
> base-commit: cbbf618b31b64198de06a350c4f5744c76e51ecb
> change-id: 20260514-exportd-ceb123e6fff2
>
> Best regards,
--
Jeff Layton <jlayton@kernel.org>
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