From: Christoph Hellwig Date: Wed, 21 Jan 2026 07:31:49 +0000 (+0100) Subject: block: make the new blkzoned UAPI constants discoverable X-Git-Tag: v6.19-rc7~26^2~5 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5f2bad67a45cd1ef6f5b727da104694a81b3666;p=thirdparty%2Fkernel%2Flinux.git block: make the new blkzoned UAPI constants discoverable The Linux 6.19 merge window added the new BLKREPORTZONESV2 ioctl, and with it the new BLK_ZONE_REP_CACHED and BLK_ZONE_COND_ACTIVE constants. The two constants are defined as part of enums, which makes it very painful for userspace to discover if they are present in the installed system headers. Use the #define to the same name trick to make them trivially discoverable using CPP directives. Fixes: 0bf0e2e46668 ("block: track zone conditions") Fixes: b30ffcdc0c15 ("block: introduce BLKREPORTZONESV2 ioctl") Reported-by: Andrey Albershteyn Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Signed-off-by: Jens Axboe --- diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h index e33f02703350..663836120966 100644 --- a/include/uapi/linux/blkzoned.h +++ b/include/uapi/linux/blkzoned.h @@ -81,7 +81,8 @@ enum blk_zone_cond { BLK_ZONE_COND_FULL = 0xE, BLK_ZONE_COND_OFFLINE = 0xF, - BLK_ZONE_COND_ACTIVE = 0xFF, + BLK_ZONE_COND_ACTIVE = 0xFF, /* added in Linux 6.19 */ +#define BLK_ZONE_COND_ACTIVE BLK_ZONE_COND_ACTIVE }; /** @@ -100,7 +101,8 @@ enum blk_zone_report_flags { BLK_ZONE_REP_CAPACITY = (1U << 0), /* Input flags */ - BLK_ZONE_REP_CACHED = (1U << 31), + BLK_ZONE_REP_CACHED = (1U << 31), /* added in Linux 6.19 */ +#define BLK_ZONE_REP_CACHED BLK_ZONE_REP_CACHED }; /**