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Linux 6.17 compat: Fix broken projectquota on 6.17

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We need to specifically use the FX_XFLAG_* macros in zpl_ioctl_*attr()
codepaths, and the FS_*_FL macros in the zpl_ioctl_*flags() codepaths.
The earlier code just assumes the FS_*_FL macros for both codepaths.
The 6.17 kernel add a bitmask check in copy_fsxattr_from_user() that
exposed this error via failing 'projectquota' ZTS tests.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17884
Closes #17869
This commit is contained in:
Tony Hutter
2025-11-05 16:22:03 -08:00
parent 91f3622a2c
commit 3a2b089a9a
5 changed files with 143 additions and 30 deletions
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include/sys/zfs_project.h
+4 -6
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@@ -34,18 +34,16 @@
#include <sys/vfs.h>
#ifdef FS_PROJINHERIT_FL
#define ZFS_PROJINHERIT_FL FS_PROJINHERIT_FL
#else
#define ZFS_PROJINHERIT_FL 0x20000000
#endif
#ifdef FS_IOC_FSGETXATTR
typedef struct fsxattr zfsxattr_t;
#define ZFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
#define ZFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
#else
/* Non-Linux OS */
#define FS_PROJINHERIT_FL 0x20000000
#define FS_XFLAG_PROJINHERIT FS_PROJINHERIT_FL
struct zfsxattr {
uint32_t fsx_xflags; /* xflags field value (get/set) */
uint32_t fsx_extsize; /* extsize field value (get/set) */