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docs: vm: page_frags.rst: Fix the reference of stale function 

The __netdev_alloc_frag() has been dropped by commit 7ba7aeabba ("net:
Don't disable interrupts in napi_alloc_frag()"). So replace it with
netdev_alloc_frag().

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Link: https://lore.kernel.org/r/20200508140924.18220-1-haokexin@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Kevin Hao 2020-05-08 22:09:24 +08:00 committed by Jonathan Corbet
parent fd79cfd712
commit ea8fdf1a40
1 changed files with 1 additions and 1 deletions
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Documentation/vm/page_frags.rst
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@ -26,7 +26,7 @@ to be disabled when executing the fragment allocation.
The network stack uses two separate caches per CPU to handle fragment
allocation. The netdev_alloc_cache is used by callers making use of the
__netdev_alloc_frag and __netdev_alloc_skb calls. The napi_alloc_cache is
netdev_alloc_frag and __netdev_alloc_skb calls. The napi_alloc_cache is
used by callers of the __napi_alloc_frag and __napi_alloc_skb calls. The
main difference between these two calls is the context in which they may be
called. The "netdev" prefixed functions are usable in any context as these