[#LU-13839] support for RHEL 8.3

  CC [M]  /root/root/lustre-release/ldiskfs/dir.o
In file included from include/linux/rh_kabi.h:30,
                 from include/linux/fs.h:5,
                 from /root/root/lustre-release/ldiskfs/dir.c:25:
/root/root/lustre-release/ldiskfs/dir.c: In function ‘__ldiskfs_check_dir_entry’:
/root/root/lustre-release/ldiskfs/ldiskfs.h:2099:61: error: invalid type argument of ‘->’ (have ‘int’)
 #define LDISKFS_DIR_REC_LEN(de)  (__LDISKFS_DIR_REC_LEN((de)->name_len +\
                                                             ^~
include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
 # define unlikely(x) __builtin_expect(!!(x), 0)
                                          ^
/root/root/lustre-release/ldiskfs/ldiskfs.h:2099:35: note: in expansion of macro ‘__LDISKFS_DIR_REC_LEN’
 #define LDISKFS_DIR_REC_LEN(de)  (__LDISKFS_DIR_REC_LEN((de)->name_len +\
                                   ^~~~~~~~~~~~~~~~~~~~~
/root/root/lustre-release/ldiskfs/dir.c:81:41: note: in expansion of macro ‘LDISKFS_DIR_REC_LEN’
  else if (unlikely(next_offset > size - LDISKFS_DIR_REC_LEN(1) &&
                                         ^~~~~~~~~~~~~~~~~~~
/root/root/lustre-release/ldiskfs/dir.c:81:61: error: passing argument 1 of ‘ldiskfs_get_dirent_data_len’ makes pointer from integer without a cast [-Werror=int-conversion]
  else if (unlikely(next_offset > size - LDISKFS_DIR_REC_LEN(1) &&
                                                             ^
include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
 # define unlikely(x) __builtin_expect(!!(x), 0)
                                          ^
/root/root/lustre-release/ldiskfs/ldiskfs.h:2099:35: note: in expansion of macro ‘__LDISKFS_DIR_REC_LEN’
 #define LDISKFS_DIR_REC_LEN(de)  (__LDISKFS_DIR_REC_LEN((de)->name_len +\
                                   ^~~~~~~~~~~~~~~~~~~~~
/root/root/lustre-release/ldiskfs/dir.c:81:41: note: in expansion of macro ‘LDISKFS_DIR_REC_LEN’
  else if (unlikely(next_offset > size - LDISKFS_DIR_REC_LEN(1) &&
                                         ^~~~~~~~~~~~~~~~~~~
In file included from /root/root/lustre-release/ldiskfs/dir.c:29:
/root/root/lustre-release/ldiskfs/ldiskfs.h:3531:75: note: expected ‘struct ldiskfs_dir_entry_2 *’ but argument is of type ‘int’
 static inline int ldiskfs_get_dirent_data_len(struct ldiskfs_dir_entry_2 *de)
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
cc1: all warnings being treated as errors
make[5]: *** [scripts/Makefile.build:315: /root/root/lustre-release/ldiskfs/dir.o] Error 1
make[5]: *** Waiting for unfinished jobs....

/root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c: In function ‘osd_extend_restart_trans’:
/root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c:1978:6: error: implicit declaration of function ‘ldiskfs_handle_has_enough_credits’; did you mean ‘ldiskfs_datasem_ensure_credits’? [-Werror=implicit-function-declaration]
  if (ldiskfs_handle_has_enough_credits(handle, needed))
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      ldiskfs_datasem_ensure_credits
/root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c:1981:7: error: too few arguments to function ‘ldiskfs_journal_extend’
  rc = ldiskfs_journal_extend(handle, needed - handle->h_buffer_credits);
       ^~~~~~~~~~~~~~~~~~~~~~
In file included from /root/root/lustre-release/lustre/osd-ldiskfs/osd_internal.h:54,
                 from /root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c:56:
/root/root/lustre-release/ldiskfs/ldiskfs_jbd2.h:349:19: note: declared here
 static inline int ldiskfs_journal_extend(handle_t *handle, int nblocks, int revoke)
                   ^~~~~~~~~~~~~~~~~~~~~~
/root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c:1985:7: error: too few arguments to function ‘ldiskfs_journal_restart’
  rc = ldiskfs_journal_restart(handle, needed);
       ^~~~~~~~~~~~~~~~~~~~~~~
In file included from /root/root/lustre-release/lustre/osd-ldiskfs/osd_internal.h:54,
                 from /root/root/lustre-release/lustre/osd-ldiskfs/osd_io.c:56:
/root/root/lustre-release/ldiskfs/ldiskfs_jbd2.h:356:19: note: declared here
 static inline int ldiskfs_journal_restart(handle_t *handle, int nblocks,
                   ^~~~~~~~~~~~~~~~~~~~~~~
  CC [M]  /root/root/lustre-release/lustre/osp/osp_sync.o
cc1: all warnings being treated as errors
make[6]: *** [scripts/Makefile.build:315: /root/root/lustre-release/lustre/osd-ldiskfs/osd_io.o] Error 1
make[6]: *** Waiting for unfinished jobs....

[LU-13839] support for RHEL 8.3 Created: 31/Jul/20 Updated: 28/Jan/21 Resolved: 09/Dec/20
Status:	Resolved
Project:	Lustre
Component/s:	None
Affects Version/s:	None
Fix Version/s:	Lustre 2.14.0, Lustre 2.12.6

[LU-13839] support for RHEL 8.3 Created: 31/Jul/20 Updated: 28/Jan/21 Resolved: 09/Dec/20