From 21bc066ece7fcf0f8250ba5dfe05fd7f507dca28 Mon Sep 17 00:00:00 2001 From: Alan Somers Date: Thu, 25 Apr 2024 16:24:52 -0500 Subject: [PATCH] Fix updating the zvol_htable when renaming a zvol When renaming a zvol, insert it into zvol_htable using the new name, not the old name. Otherwise some operations won't work. For example, "zfs set volsize" while the zvol is open. Sponsored by: Axcient Reviewed-by: Brian Behlendorf Reviewed-by: Alek Pinchuk Signed-off-by: Alan Somers Closes #16127 Closes #16128 --- module/os/freebsd/zfs/zvol_os.c | 2 +- module/os/linux/zfs/zvol_os.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/module/os/freebsd/zfs/zvol_os.c b/module/os/freebsd/zfs/zvol_os.c index 6a7c2d281..712ff1b83 100644 --- a/module/os/freebsd/zfs/zvol_os.c +++ b/module/os/freebsd/zfs/zvol_os.c @@ -1259,7 +1259,7 @@ zvol_os_rename_minor(zvol_state_t *zv, const char *newname) ASSERT(MUTEX_HELD(&zv->zv_state_lock)); /* Move to a new hashtable entry. */ - zv->zv_hash = zvol_name_hash(zv->zv_name); + zv->zv_hash = zvol_name_hash(newname); hlist_del(&zv->zv_hlink); hlist_add_head(&zv->zv_hlink, ZVOL_HT_HEAD(zv->zv_hash)); diff --git a/module/os/linux/zfs/zvol_os.c b/module/os/linux/zfs/zvol_os.c index 4b960daf8..2a036dc51 100644 --- a/module/os/linux/zfs/zvol_os.c +++ b/module/os/linux/zfs/zvol_os.c @@ -1571,7 +1571,7 @@ zvol_os_rename_minor(zvol_state_t *zv, const char *newname) strlcpy(zv->zv_name, newname, sizeof (zv->zv_name)); /* move to new hashtable entry */ - zv->zv_hash = zvol_name_hash(zv->zv_name); + zv->zv_hash = zvol_name_hash(newname); hlist_del(&zv->zv_hlink); hlist_add_head(&zv->zv_hlink, ZVOL_HT_HEAD(zv->zv_hash));