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staging: lustre: osc: use rb_entry_safe

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Use rb_entry_safe() instead of container_of() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geliang Tang 2016-12-20 21:56:55 +08:00 committed by Greg Kroah-Hartman
parent 69eb1a0dbf
commit e3e0293ca9
1 changed files with 1 additions and 4 deletions
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5
drivers/staging/lustre/lustre/osc/osc_cache.c
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@ -142,10 +142,7 @@ static const char *oes_strings[] = {
static inline struct osc_extent *rb_extent(struct rb_node *n)
{
if (!n)
return NULL;
return container_of(n, struct osc_extent, oe_node);
return rb_entry_safe(n, struct osc_extent, oe_node);
}
static inline struct osc_extent *next_extent(struct osc_extent *ext)