usr
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src
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kernels
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3.10.0-1160.139.1.el7.tuxcare.els4.x86_64
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include
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linux
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ceph
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buffer.h
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#ifndef __FS_CEPH_BUFFER_H #define __FS_CEPH_BUFFER_H #include <linux/kref.h> #include <linux/mm.h> #include <linux/vmalloc.h> #include <linux/types.h> #include <linux/uio.h> /* * a simple reference counted buffer. * * use kmalloc for smaller sizes, vmalloc for larger sizes. */ struct ceph_buffer { struct kref kref; struct kvec vec; size_t alloc_len; }; extern struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp); extern void ceph_buffer_release(struct kref *kref); static inline struct ceph_buffer *ceph_buffer_get(struct ceph_buffer *b) { kref_get(&b->kref); return b; } static inline void ceph_buffer_put(struct ceph_buffer *b) { kref_put(&b->kref, ceph_buffer_release); } extern int ceph_decode_buffer(struct ceph_buffer **b, void **p, void *end); #endif
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