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-rw-r--r--fs/file.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/file.c b/fs/file.c
index c5575de01113..5110acb1c9ef 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -24,6 +24,8 @@ struct fdtable_defer {
struct fdtable *next;
};
+int sysctl_nr_open __read_mostly = 1024*1024;
+
/*
* We use this list to defer free fdtables that have vmalloced
* sets/arrays. By keeping a per-cpu list, we avoid having to embed
@@ -147,8 +149,8 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
nr /= (1024 / sizeof(struct file *));
nr = roundup_pow_of_two(nr + 1);
nr *= (1024 / sizeof(struct file *));
- if (nr > NR_OPEN)
- nr = NR_OPEN;
+ if (nr > sysctl_nr_open)
+ nr = sysctl_nr_open;
fdt = kmalloc(sizeof(struct fdtable), GFP_KERNEL);
if (!fdt)
@@ -233,7 +235,7 @@ int expand_files(struct files_struct *files, int nr)
if (nr < fdt->max_fds)
return 0;
/* Can we expand? */
- if (nr >= NR_OPEN)
+ if (nr >= sysctl_nr_open)
return -EMFILE;
/* All good, so we try */