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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2017-09-13 12:32:34 +0200 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-10-29 18:20:07 +0100 |
| commit | 56e721e399b4ddc00c68cb7ced804846f6ac3f93 (patch) | |
| tree | 005b81d812a28751be6acf3a675ee96a13bfef0f | |
| parent | f0b4a9cb253a8c527f43e9e9961bf6da540c73ec (diff) | |
| download | linux-rt-56e721e399b4ddc00c68cb7ced804846f6ac3f93.tar.gz | |
fs/dcache: bring back explicit INIT_HLIST_BL_HEAD init
Commit 3d375d78593c ("mm: update callers to use HASH_ZERO flag") removed
INIT_HLIST_BL_HEAD and uses the ZERO flag instead for the init. However
on RT we have also a spinlock which needs an init call so we can't use
that.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
| -rw-r--r-- | fs/dcache.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 2e7e8d85e9b4..e79ab67b0464 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -3062,6 +3062,8 @@ __setup("dhash_entries=", set_dhash_entries); static void __init dcache_init_early(void) { + unsigned int loop; + /* If hashes are distributed across NUMA nodes, defer * hash allocation until vmalloc space is available. */ @@ -3078,11 +3080,16 @@ static void __init dcache_init_early(void) NULL, 0, 0); + + for (loop = 0; loop < (1U << d_hash_shift); loop++) + INIT_HLIST_BL_HEAD(dentry_hashtable + loop); + d_hash_shift = 32 - d_hash_shift; } static void __init dcache_init(void) { + unsigned int loop; /* * A constructor could be added for stable state like the lists, * but it is probably not worth it because of the cache nature @@ -3106,6 +3113,10 @@ static void __init dcache_init(void) NULL, 0, 0); + + for (loop = 0; loop < (1U << d_hash_shift); loop++) + INIT_HLIST_BL_HEAD(dentry_hashtable + loop); + d_hash_shift = 32 - d_hash_shift; } |