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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
committed by Brian Behlendorf
parent dda711dbb5
commit a2a34d9212
6 changed files with 146 additions and 33 deletions
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cmd/zfs/zfs_project.c
+28 -8
View File
@@ -145,11 +145,11 @@ zfs_project_handle_one(const char *name, zfs_project_control_t *zpc)
switch (zpc->zpc_op) {
case ZFS_PROJECT_OP_LIST:
(void) printf("%5u %c %s\n", fsx.fsx_projid,
(fsx.fsx_xflags & ZFS_PROJINHERIT_FL) ? 'P' : '-', name);
(fsx.fsx_xflags & FS_XFLAG_PROJINHERIT) ? 'P' : '-', name);
goto out;
case ZFS_PROJECT_OP_CHECK:
if (fsx.fsx_projid == zpc->zpc_expected_projid &&
fsx.fsx_xflags & ZFS_PROJINHERIT_FL)
fsx.fsx_xflags & FS_XFLAG_PROJINHERIT)
goto out;
if (!zpc->zpc_newline) {
@@ -164,29 +164,30 @@ zfs_project_handle_one(const char *name, zfs_project_control_t *zpc)
"(%u/%u)\n", name, fsx.fsx_projid,
(uint32_t)zpc->zpc_expected_projid);
if (!(fsx.fsx_xflags & ZFS_PROJINHERIT_FL))
if (!(fsx.fsx_xflags & FS_XFLAG_PROJINHERIT))
(void) printf("%s - project inherit flag is not set\n",
name);
goto out;
case ZFS_PROJECT_OP_CLEAR:
if (!(fsx.fsx_xflags & ZFS_PROJINHERIT_FL) &&
if (!(fsx.fsx_xflags & FS_XFLAG_PROJINHERIT) &&
(zpc->zpc_keep_projid ||
fsx.fsx_projid == ZFS_DEFAULT_PROJID))
goto out;
fsx.fsx_xflags &= ~ZFS_PROJINHERIT_FL;
fsx.fsx_xflags &= ~FS_XFLAG_PROJINHERIT;
if (!zpc->zpc_keep_projid)
fsx.fsx_projid = ZFS_DEFAULT_PROJID;
break;
case ZFS_PROJECT_OP_SET:
if (fsx.fsx_projid == zpc->zpc_expected_projid &&
(!zpc->zpc_set_flag || fsx.fsx_xflags & ZFS_PROJINHERIT_FL))
(!zpc->zpc_set_flag ||
fsx.fsx_xflags & FS_XFLAG_PROJINHERIT))
goto out;
fsx.fsx_projid = zpc->zpc_expected_projid;
if (zpc->zpc_set_flag)
fsx.fsx_xflags |= ZFS_PROJINHERIT_FL;
fsx.fsx_xflags |= FS_XFLAG_PROJINHERIT;
break;
default:
ASSERT(0);
@@ -194,11 +195,30 @@ zfs_project_handle_one(const char *name, zfs_project_control_t *zpc)
}
ret = ioctl(fd, ZFS_IOC_FSSETXATTR, &fsx);
if (ret)
if (ret) {
(void) fprintf(stderr,
gettext("failed to set xattr for %s: %s\n"),
name, strerror(errno));
if (errno == ENOTSUP) {
char *kver = zfs_version_kernel();
/*
* Special case: a module/userspace version mismatch can
* return ENOTSUP due to us fixing the XFLAGs bits in
* #17884. In that case give a hint to the user that
* they should take action to make the versions match.
*/
if (strcmp(kver, ZFS_META_ALIAS) != 0) {
fprintf(stderr,
gettext("Warning: The zfs module version "
"(%s) and userspace\nversion (%s) do not "
"match up. This may be the\ncause of the "
"\"Operation not supported\" error.\n"),
kver, ZFS_META_ALIAS);
}
}
}
out:
close(fd);
return (ret);