mirror of
https://github.com/koverstreet/bcachefs-tools.git
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1a9d73b5c0
After memory allocation failure, don't rely on /proc/meminfo to figure out how much memory we should free - instead unconditionally free 1/8th of each cache. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
31 lines
705 B
C
31 lines
705 B
C
#ifndef __TOOLS_LINUX_SHRINKER_H
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#define __TOOLS_LINUX_SHRINKER_H
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#include <linux/list.h>
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#include <linux/types.h>
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struct shrink_control {
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gfp_t gfp_mask;
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unsigned long nr_to_scan;
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};
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#define SHRINK_STOP (~0UL)
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struct shrinker {
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unsigned long (*count_objects)(struct shrinker *,
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struct shrink_control *sc);
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unsigned long (*scan_objects)(struct shrinker *,
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struct shrink_control *sc);
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int seeks; /* seeks to recreate an obj */
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long batch; /* reclaim batch size, 0 = default */
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struct list_head list;
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};
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int register_shrinker(struct shrinker *);
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void unregister_shrinker(struct shrinker *);
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void run_shrinkers(gfp_t gfp_mask, bool);
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#endif /* __TOOLS_LINUX_SHRINKER_H */
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