Time has come to change NR_OPEN value, some production servers hit the
not so 'ridiculously high value' of 1024*1024 file descriptors per process.
This is safe to raise this value, because alloc_fd_array() uses
vmalloc() for large arrays and vmalloc() returns NULL if a too large
allocation is attempted (or in case of memory shortage)
Moore law implies this limit should be changed every 1-2 years, and it seems
we forgot doing this for ages.
Even on my old notebook, a process can open 1000000 descriptors without any
problem.
Signed-off-by: Eric Dumazet <[EMAIL PROTECTED]>
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b3ec4a4..6253ddd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -21,7 +21,7 @@
/* Fixed constants first: */
#undef NR_OPEN
-#define NR_OPEN (1024*1024) /* Absolute upper limit on fd num */
+#define NR_OPEN (16*1024*1024) /* Absolute upper limit on fd num */
#define INR_OPEN 1024 /* Initial setting for nfile rlimits */
#define BLOCK_SIZE_BITS 10
