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ext4: mballoc: simplify error handling in ext4_init_mballoc()

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This patch simplifies error handling logic in ext4_init_mballoc(),
by adding all the cleanups at one place at the end of that function.

There should be no functionality change in this patch.

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/8621a7bc68f7107a9ac4292afeb784515333bd25.1589086800.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ritesh Harjani 2020-05-10 11:54:46 +05:30 committed by Theodore Ts'o
parent 004379d0b0
commit f283529aba
1 changed files with 13 additions and 10 deletions
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23
fs/ext4/mballoc.c
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@ -2913,23 +2913,26 @@ int __init ext4_init_mballoc(void)
ext4_pspace_cachep = KMEM_CACHE(ext4_prealloc_space,
SLAB_RECLAIM_ACCOUNT);
if (ext4_pspace_cachep == NULL)
return -ENOMEM;
goto out;
ext4_ac_cachep = KMEM_CACHE(ext4_allocation_context,
SLAB_RECLAIM_ACCOUNT);
if (ext4_ac_cachep == NULL) {
kmem_cache_destroy(ext4_pspace_cachep);
return -ENOMEM;
}
if (ext4_ac_cachep == NULL)
goto out_pa_free;
ext4_free_data_cachep = KMEM_CACHE(ext4_free_data,
SLAB_RECLAIM_ACCOUNT);
if (ext4_free_data_cachep == NULL) {
kmem_cache_destroy(ext4_pspace_cachep);
kmem_cache_destroy(ext4_ac_cachep);
return -ENOMEM;
}
if (ext4_free_data_cachep == NULL)
goto out_ac_free;
return 0;
out_ac_free:
kmem_cache_destroy(ext4_ac_cachep);
out_pa_free:
kmem_cache_destroy(ext4_pspace_cachep);
out:
return -ENOMEM;
}
void ext4_exit_mballoc(void)