#include #include #include #include #include #include /* for ceph_kvmalloc */ struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp) { struct ceph_buffer *b; b = kmalloc(sizeof(*b), gfp); if (!b) return NULL; b->vec.iov_base = ceph_kvmalloc(len, gfp); if (!b->vec.iov_base) { kfree(b); return NULL; } kref_init(&b->kref); b->alloc_len = len; b->vec.iov_len = len; dout("buffer_new %p\n", b); return b; } EXPORT_SYMBOL(ceph_buffer_new); void ceph_buffer_release(struct kref *kref) { struct ceph_buffer *b = container_of(kref, struct ceph_buffer, kref); dout("buffer_release %p\n", b); kvfree(b->vec.iov_base); kfree(b); } EXPORT_SYMBOL(ceph_buffer_release); int ceph_decode_buffer(struct ceph_buffer **b, void **p, void *end) { size_t len; ceph_decode_need(p, end, sizeof(u32), bad); len = ceph_decode_32(p); dout("decode_buffer len %d\n", (int)len); ceph_decode_need(p, end, len, bad); *b = ceph_buffer_new(len, GFP_NOFS); if (!*b) return -ENOMEM; ceph_decode_copy(p, (*b)->vec.iov_base, len); return 0; bad: return -EINVAL; } ption> net-next plumbingsTobias Klauser
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authorMark Brown <broonie@kernel.org>2016-12-12 12:17:19 +0000
committerMark Brown <broonie@kernel.org>2016-12-12 12:17:19 +0000
commitc1b0789271b13dd7561f78370122c3183cd74ab0 (patch)
treef4eda3db7bd1b059de81cd4bec7fbb871661dbe2 /drivers
parent69973b830859bc6529a7a0468ba0d80ee5117826 (diff)
parent618c808968852609d2d9f0e5cfc351a4807ef8d0 (diff)
Merge remote-tracking branch 'regulator/fix/axp20x' into regulator-linus
Diffstat (limited to 'drivers')