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fs/ufs: change default locking protocol - v4.1.x #12760

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fs/ufs: change default locking protocol - v4.1.x #12760

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7 changes: 7 additions & 0 deletions ompi/mca/fs/lustre/fs_lustre.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
* Copyright (c) 2015-2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserverd.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand All @@ -31,6 +32,12 @@
extern int mca_fs_lustre_priority;
extern int mca_fs_lustre_stripe_size;
extern int mca_fs_lustre_stripe_width;
extern int mca_fs_lustre_lock_algorithm;

#define FS_LUSTRE_LOCK_AUTO 0
#define FS_LUSTRE_LOCK_NEVER 1
#define FS_LUSTRE_LOCK_ENTIRE_FILE 2
#define FS_LUSTRE_LOCK_RANGES 3

BEGIN_C_DECLS

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11 changes: 11 additions & 0 deletions ompi/mca/fs/lustre/fs_lustre_component.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
* Copyright (c) 2008-2011 University of Houston. All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserverd.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand Down Expand Up @@ -45,6 +46,7 @@ int mca_fs_lustre_priority = 20;
runtime also*/
int mca_fs_lustre_stripe_size = 0;
int mca_fs_lustre_stripe_width = 0;
int mca_fs_lustre_lock_algorithm = 0; /* auto */
/*
* Instantiate the public struct with all of our public information
* and pointers to our public functions in it
Expand Down Expand Up @@ -93,6 +95,15 @@ lustre_register(void)
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY, &mca_fs_lustre_stripe_width);
mca_fs_lustre_lock_algorithm = 0;
(void) mca_base_component_var_register(&mca_fs_lustre_component.fsm_version,
"lock_algorithm", "Locking algorithm used by the fs ufs component. "
" 0: auto (default), 1: skip locking, 2: always lock entire file, "
"3: lock only specific ranges",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_fs_lustre_lock_algorithm );

return OMPI_SUCCESS;
}
17 changes: 16 additions & 1 deletion ompi/mca/fs/lustre/fs_lustre_file_open.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
* Copyright (c) 2015-2020 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserverd.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand Down Expand Up @@ -171,8 +172,22 @@ mca_fs_lustre_file_open (struct ompi_communicator_t *comm,
fh->f_stripe_size = lump->lmm_stripe_size;
fh->f_stripe_count = lump->lmm_stripe_count;
fh->f_fs_block_size = lump->lmm_stripe_size;
fh->f_flags |= OMPIO_LOCK_NEVER;
free(lump);

if (FS_LUSTRE_LOCK_AUTO == mca_fs_lustre_lock_algorithm ||
FS_LUSTRE_LOCK_NEVER == mca_fs_lustre_lock_algorithm ) {
fh->f_flags |= OMPIO_LOCK_NEVER;
}
else if (FS_LUSTRE_LOCK_ENTIRE_FILE == mca_fs_lustre_lock_algorithm) {
fh->f_flags |= OMPIO_LOCK_ENTIRE_FILE;
}
else if (FS_LUSTRE_LOCK_RANGES == mca_fs_lustre_lock_algorithm) {
/* Nothing to be done. This is what the posix fbtl component would do
anyway without additional information . */
}
else {
opal_output ( 1, "Invalid value for mca_fs_lustre_lock_algorithm %d", mca_fs_lustre_lock_algorithm );
}

return OMPI_SUCCESS;
}
7 changes: 1 addition & 6 deletions ompi/mca/fs/ufs/fs_ufs_file_open.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
* Copyright (c) 2015-2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserverd.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand Down Expand Up @@ -105,12 +106,6 @@ mca_fs_ufs_file_open (struct ompi_communicator_t *comm,
component. */
fh->f_flags |= OMPIO_LOCK_ENTIRE_FILE;
}
else {
fh->f_flags |= OMPIO_LOCK_NEVER;
}
}
else {
fh->f_flags |= OMPIO_LOCK_NEVER;
}
free (fstype);
}
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