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fs: Make file-nr output the total allocated file handles

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Make file-nr output the total allocated file handles, not per-cpu
cache number, it's more precise, and not in hot path

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Link: https://lore.kernel.org/20250410112117.2851-1-lirongqing@baidu.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Li RongQing 2025-04-10 19:21:17 +08:00 committed by Christian Brauner
parent 6b24a702ec
commit ef181fa11d
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1 changed files with 1 additions and 1 deletions
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fs/file_table.c
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@ -102,7 +102,7 @@ EXPORT_SYMBOL_GPL(get_max_files);
static int proc_nr_files(const struct ctl_table *table, int write, void *buffer, static int proc_nr_files(const struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos) size_t *lenp, loff_t *ppos)
{ {
files_stat.nr_files = get_nr_files(); files_stat.nr_files = percpu_counter_sum_positive(&nr_files);
return proc_doulongvec_minmax(table, write, buffer, lenp, ppos); return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
} }